JPH11254821A - Delivery sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate handling by providing a pressure sensitive adhesive composition layer being reseparable after adhesion and capable of typing or printing information on the opposite side of the developing agent-applied surface of a developing agent-applied sheet, and indicating information on the surface by typing or printing. SOLUTION: A delivery slip 1 is formed of the combination of a coloring agent-applied sheet 2 and a developing agent-applied sheet 3. On the rear surface of the developing agent-applied sheet 3, a pressure sensitive adhesive composition layer 10 is provided for typing, printing, or writing of information. The pressure sensitive adhesive composition layer 10 is researable after adhesion, and comprises an adhesive capable of typing or printing information on the adhesive. The adhesive is, e.g. a pressure sensitive adhesive composition of acrylic emulsion containing as a main component acrylic ester and water soluble resin emulsion. On the pressure sensitive adhesive composition, printing and typing is possible, no fouling or the like is developed at the place of a no-carbon part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a non-carbon type copying sheet in which a color-developing agent-coated sheet and a color-developing agent-coated sheet are combined. Surface, the adhesive layer is not normally adhered to at least one surface of the developer non-applied surface, but is adhered removably by applying a predetermined pressure, and an adhesive layer capable of printing or printing information on the adhesive is provided. To an information carrier sheet.

[0002]

2. Description of the Related Art Conventionally, a carbonless copying sheet comprising a combination of a coloring agent-applied sheet and a color-developing agent-applied sheet is provided with a non-peelable pressure-sensitive adhesive at the end of the copying sheet, and the pressure is applied by pressure. Adhesive combinations and adhesives provided on the developer-uncoated surface of the developer-coated sheet are applied to mailings, and are widely used for delivery slips, address labels, and the like.

[0003]

However, in the method of bonding by pressure, when pressure is applied, microcapsules containing a colorless dye constituting a color forming agent are destroyed, causing a problem of coloring stains or causing a problem on the back surface. Because of the pressure-sensitive adhesive provided, release paper is required, and once pasted, it is not possible to replace it after re-adhering, and information cannot be recorded on the pressure-sensitive adhesive side. Met.

[0004] Accordingly, an object of the present invention is to provide an information carrier sheet that has solved such disadvantages.

[0005]

SUMMARY OF THE INVENTION The present invention, which has solved the above-mentioned problems, is directed to a carbon-free information carrier sheet comprising a combination of a color-forming agent-coated sheet and a color-developing agent-coated sheet. An acrylic resin emulsion containing an acrylate ester and a water-soluble resin emulsion as main components on at least one of the developer-coated surface of the developer-coated sheet and the developer-uncoated surface of the developer-coated sheet; An information carrier sheet characterized by comprising a pressure-sensitive adhesive composition layer capable of printing or printing information on an adhesive, which is removable after bonding, characterized by containing microparticles as a basic component. is there.

In the production of a copying sheet by the carbonless method, a color former containing microcapsules encapsulating a colorless dye is provided on the surface of the upper sheet substrate serving as the color former coated sheet, which is in contact with the developer coated surface. Formed as a layer, a developer that develops by adsorbing the encapsulated pigment by breaking the microcapsules by pressure printing on the surface of the lower sheet substrate that is to be the developer application sheet and that is in contact with the colorant application surface Can be manufactured by a conventionally used technique of forming a layer.

The adhesive used in the present invention, which can be re-peeled after bonding and can print or print information on the adhesive, is an acrylic resin emulsion pressure-sensitive adhesive composition containing an acrylate ester and a water-soluble resin emulsion as main components. Things.
By dispersing the water-soluble resin emulsion formed into a protective colloid in the acrylic resin emulsion, the surface of the coating layer of the pressure-sensitive adhesive composition is dried on the surface of the coating layer of the water-soluble resin in a drying step at the time of coating in accordance with evaporation of moisture and the like. Moves to the surface of the coating layer to form a layer containing a large amount of the water-soluble resin component. Therefore, the pressure-sensitive pseudo-adhesive sheet coated with the pressure-sensitive adhesive composition of the present invention prevents the occurrence of blocking and the like. Or to prevent the pressure-sensitive adhesive from being sticky on the surface of the applied layer.

An acrylic resin emulsion pressure-sensitive adhesive composition containing an acrylate ester and a water-soluble resin emulsion as main components is prepared by adding hydrophilic fine particles to the acrylic resin emulsion pressure-sensitive adhesive composition. By applying pressure, pseudo-adhesive performance for removable adhesion can be exhibited.

The mechanism is to use hydrophilic microparticles to attach an acrylic resin in an emulsion state to the surface of the hydrophilic microparticles, and to form a film-like adhesive component on the surface of the hydrophilic microparticles in the drying step. Characteristic is exhibited.

The surface of a layer coated with a pressure-sensitive adhesive composition having hydrophilic microparticles having an acrylic resin emulsion pressure-sensitive adhesive in the form of a film adhered to the surface of the layer to which the acrylic resin emulsion pressure-sensitive adhesive is attached Irregularities due to the conductive fine particles are formed, the irregularities shift when a predetermined pressure is applied, the surface of the coating layer becomes flat, and the bonding surface changes from point bonding due to the unevenness to surface bonding and pseudo bonding.

The bonding mechanism in this case uses a bonding mechanism such as self-diffusion of the acrylic resin emulsion pressure-sensitive adhesive surface, dipole force, hydrogen bonding, or physical entanglement of the polymer resin and paper fibers.

By using this bonding mechanism, printing and printing can be performed on the acrylic resin emulsion pressure-sensitive adhesive composition layer, and by using a rubber-based pressure-sensitive adhesive generally used conventionally. No yellowing of the carbonless system part, deterioration of carbonless coloring, and generation of stains do not occur.

The average particle diameter of the hydrophilic fine particles contained as a basic component in the acrylic resin emulsion pressure-sensitive adhesive composition used in the present invention may be in the range of 0.1 to 20 μm, preferably in the range of 1 to 15 μm. More preferred.

When the average particle diameter is less than 1 μm, the fine particles are easily peeled off from the pressure-sensitive adhesive applied layer,
If it is more than m, adverse effects such as insufficient adhesion and no carbon color stain may occur.

The average particle diameter of the hydrophilic fine particles is usually indicated by an average value of the size of one particle. For example, fine primary particles such as silica form a group, and it is as if When a behavior like one particle is shown, it means the average size of the group of particles (secondary particles).

The mixing ratio of the water-soluble resin emulsion to be dispersed in the acrylic resin emulsion used in the present invention is preferably 5 to 200 parts by weight of the water-soluble resin emulsion per 100 parts by weight of the acrylate ester. . If the compounding ratio is less than 5 parts by weight or 200 parts by weight or more, there is a possibility of causing problems such as occurrence of blocking or insufficient development of adhesive strength.

Therefore, in the present invention, at least 5
It is preferred that about 200 parts by weight of the water-soluble resin emulsion is dispersed in the acrylic resin emulsion. Preferably, an acrylic resin emulsion having a glass transition point in the range of −90 to 50 ° C. is used as an adhesive component in order to develop a suitable adhesive force.

The compounding ratio of the pressure-sensitive adhesive composition used in the present invention is preferably such that 5-200 parts by weight of hydrophilic fine particles are contained with respect to 100 parts by weight of the acrylic resin emulsion. If the compounding ratio is less than 5 parts by weight, the printing or printing suitability is insufficient, or if the compounding ratio is 200 parts by weight or more, the hydrophilic fine particles are easily peeled off from the pressure-sensitive adhesive applied layer or have sufficient adhesive force. There is a risk of adverse effects such as not being expressed.

Therefore, in the present invention, at least 5
It is preferred to use the hydrophilic fine particles in an amount of from 200 to 200 parts by weight in the pressure-sensitive adhesive composition. In the present invention, the amount of the pressure-sensitive adhesive composition applied to the substrate is
Normally, ^{2 to 20} g / m ^{2 in} order to develop proper adhesive strength
It is preferable to apply to the extent.

The hydrophilic fine particles used in the pressure-sensitive adhesive composition of the present invention include silica, charcoal, kaolin, clay,
Talc, aluminum hydroxide, titanium oxide, zinc oxide,
Activated clay, starch particles, cellulose particles, styrene resin particles, acrylic resin particles, urea resin particles, microcapsules, oil capsules, polyethylene, and among known inorganic or organic microparticles such as vinyl chloride,
It can be appropriately selected and used. Even fine particles that are inherently hydrophobic can be suitably used as long as they are processed to be hydrophilic.

These hydrophilic microparticles may be used alone or in combination of two or more. By using two or more kinds in combination, uneven unevenness is formed on the surface of the pressure-sensitive adhesive composition, and the expression of pseudo-adhesiveness is improved. In the present invention, the inclusion of hydrophilic and more preferably non-thermoplastic fine particles in the pressure-sensitive adhesive composition can maintain the shape of unevenness in a printing method requiring heat, such as electrophotographic printing. It is preferred in terms of.

The water-soluble resin emulsion dispersed in the acrylic resin emulsion used in the pressure-sensitive adhesive composition of the present invention includes polyvinyl alcohol, carboxymethyl cellulose, polyvinyl pyrrolidone, polyacrylic acid,
From among known water-soluble polymers such as polyacrylamide, ethylene-maleic anhydride copolymer, styrene-maleic anhydride copolymer, methyl vinyl ether-maleic anhydride copolymer, isobutylene-maleic anhydride copolymer, etc. Can be appropriately selected and used. These resins may be used alone or in combination of two or more. In the present invention, it is preferable to use a styrene-maleic anhydride copolymer excellent in UV resistance, printability, blocking resistance and the like.

The peel strength of the pressure-sensitive adhesive composition is 20 ° C., 5
The test piece was allowed to stand for 30 minutes or more in an environment of 0% RH, and was pseudo-bonded through a 150 μm gap using a crimping machine manufactured by Dai Nippon Printing Co. or Moore Co., Ltd., cut into a width of 5 cm, and the tensile strength of T peel Is desirably 200 g or more.

The pressure-sensitive adhesive composition may further contain a surfactant, an antifoaming agent, a thickener, a water-proofing agent, a dispersant,
UV absorbers, antioxidants, antistatic agents, ink fixing agents, dye fixing agents, fluorescent dyes, colored dyes, lubricants, deodorants,
Auxiliary agents such as deodorants and antibacterial agents can be added.

As the base material used in the present invention, for example, high quality paper, medium quality paper, recycled paper, art paper, coated paper, lightly coated paper, synthetic paper, film, laminated paper, metallized paper, etc. are used. I can do it.

In the present invention, the color former, the developer and the pressure-sensitive adhesive composition are applied to a substrate by a conventional method such as a blade coater, an air knife coater, a bar coater, a roll coater, a gravure printing machine, a screen printing machine and the like. It can be provided using a known coating machine or printing machine.

Further, by performing embossing and pressurizing, the adhesiveness of the pressure-sensitive adhesive in the embossed portion is suppressed, and coloring due to pressure is suppressed. The embossing pressure is applied to rolls or rolls provided with recesses to which pressure is not applied, a pressing plate, a combination of rolls and pressing plates, etc.
It can be performed by a physical method. The range in which no pressure is applied can be arbitrarily set according to the range of the concave portion.

The total amount of the colorant-applied sheet mainly composed of a pressure-sensitive adhesive, a colorant and other auxiliary agents is 0.5 to 50 g / m 2.
² is appropriate, but in order to promote environmental protection by reusing the base, 1.0 to 20 g / m ² is required to be able to remove the coating layer when reusing, to recover the raw material pulp, etc., and to wash the material. It is more preferable from the viewpoint of efficiency and dispersibility.

The application amount of the microcapsules, the pressure-sensitive adhesive, and the like on the back surface of the color developing agent application sheet can be appropriately determined in accordance with the expressiveness of information recording in combination with the color developing agent application sheet. In the configuration of the developer application sheet and the colorant application sheet, the total thickness of the developer application sheet and the colorant application sheet is not limited, but in order to supply to the printer, the total thickness of the entire delivery slip 1 is Is desirably 250 μm or less.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS This information carrier sheet is formed by combining a color developing agent coated sheet provided with a color developing agent layer so as to face the color developing agent layer of the color developing agent coated sheet to print or print information. This information is copied and entered.

A preferred embodiment in which the present invention is applied to a delivery slip 1 will be described below in detail with reference to the accompanying drawings. Here, FIG. 1 is a perspective view of the delivery slip 1, and FIG.
2 is a cross-sectional view of the delivery slip 1 along the line AA. FIG. 3 is a cross-sectional view taken along line AA when the color forming agent application sheet 2 of FIG. 1 is removed.

(Embodiment) As shown in FIG. 1, a delivery slip 1 composed of an information carrier sheet is composed of a coloring agent coated sheet 2,
The developer application sheet 3 is combined, and a layer 10 of the pressure-sensitive adhesive composition is provided on the back surface of the developer application sheet 3, and information 12 is printed, printed, or written. In addition, depending on the purpose, various guide information and record information are printed in advance,
Alternatively, it is recorded by various recording devices. OCR information such as a bar code is also recorded. Both ends 4 and 5 of the delivery slip 1 are combined with an adhesive 6 to form a perforation 7.
Is configured to be separable.

As can be understood from FIG. 1, a color developing agent layer 8 is provided on the back surface of the color developing agent application sheet 2, and a color developer layer 9 is applied on the surface of the color developing agent application sheet 3.

Next, the means for creating the above-mentioned delivery slip 1 shown in FIG. 2 will be described. First, a developer application sheet 3 having the same size as the colorant application sheet 2 and provided with a colorant layer 9 so as to correspond to the colorant layer 8 on the back surface of the colorant application sheet 2 is prepared. The color-developing agent application sheet 2 is superimposed on the color-developing agent application sheet 3 so that the color-developing agent layer 8 is opposed to a portion where the color-developing agent layer 9 is provided, and provided on both ends of the color-developing agent application sheet 3. Adhesion 6 is used to make adhesion difficult. Adhesive 6
For example, an acrylic adhesive or the like generally used conventionally can be used.

Thus, by printing or printing the address information 11 from the developer application sheet 2 by physical means,
Copies can be made on the coloring agent application sheet 3. The coloring agent application sheet 2 can be cut off by the cut sewing machine 7 to be used as a copy.

Next, the developer application sheet 3 is releasably adhered to the delivery with a layer 10 of the pressure-sensitive adhesive composition at a predetermined pressure and transmitted to the receiver by communication means.

The receiver peels off the developer coating sheet 3 and prints or prints the information 12 printed or printed on the layer of the pressure-sensitive adhesive composition.
Can be read.

[0038]

As described above, according to the present invention, there is no generation of stains by the dye capsule, no problem of peeling off during the mailing means, and by peeling again, the layer of the pressure-sensitive adhesive composition can be formed. An information carrier sheet from which printed or printed information can be read can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a delivery slip 1;

FIG. 2 is a sectional view of the delivery slip 1 taken along line AA.

FIG. 3 is a cross-sectional view taken along the line AA when the color forming agent application sheet 11 of FIG. 1 is removed.

[Explanation of symbols]

1 delivery slip, 2 coloring agent application sheet, 3 developer application sheet, 4 right end of delivery slip, 5 left end of delivery slip, 6 adhesive, 7 perforation, 8 color former layer, 9 developer layer, 1
0 pressure-sensitive adhesive progenitor, 11 address information, 12 information

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

[Procedure amendment]

[Submission date] April 20, 1998

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Sheet for information carrier

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carbon-free copying sheet in which a color-forming agent-coated sheet and a color-developing agent-coated sheet are combined. Adhesion that normally does not adhere to at least one of the developer-applied surface and the developer-unapplied surface, but is releasably adhered by applying a predetermined pressure, and can print or print information on the adhesive. The present invention relates to an information carrier sheet provided with an agent layer.

[0002]

2. Description of the Related Art Conventionally, a carbonless copying sheet comprising a combination of a coloring agent-applied sheet and a color-developing agent-applied sheet is provided with a non-peelable pressure-sensitive adhesive at the end of the copying sheet, and the pressure is applied by pressure. Adhesive combinations and adhesives provided on the developer-uncoated surface of the developer-coated sheet are applied to mailings, and are widely used for delivery slips, address labels, and the like.

[0003]

However, the method of bonding by pressure is such that when pressure is applied, the microcapsules containing the colorless dye constituting the color former are destroyed, causing the problem of color stains or the back surface. Because of the pressure-sensitive adhesive provided, release paper is required, and once pasted, it is not possible to replace it after re-adhering, and information cannot be recorded on the pressure-sensitive adhesive side. Met.

[0004] Accordingly, an object of the present invention is to provide an information carrier sheet that has solved such disadvantages.

[0005]

SUMMARY OF THE INVENTION The present invention, which has solved the above-mentioned problems, is directed to a carbon-free information carrier sheet comprising a combination of a color-forming agent-coated sheet and a color-developing agent-coated sheet. An acrylic resin emulsion containing an acrylate ester and a water-soluble resin emulsion as main components on at least one of the developer-coated surface of the developer-coated sheet and the developer-uncoated surface of the developer-coated sheet; An information carrier sheet characterized in that it contains microparticles as a basic component, and is provided with a pressure-sensitive adhesive composition layer capable of printing or printing information on an adhesive, which is removable after bonding. is there.

In the production of a copying sheet by the carbonless method, a color former containing microcapsules encapsulating a colorless dye is provided on the surface of the upper sheet substrate serving as the color former coated sheet, which is in contact with the developer coated surface. Formed as a layer, a developer that develops by adsorbing the encapsulated pigment by breaking the microcapsules by pressure printing on the surface of the lower sheet substrate that is to be the developer application sheet and that is in contact with the colorant application surface Can be manufactured by a conventionally used technique of forming a layer.

The adhesive used in the present invention, which can be re-peeled after bonding and can print or print information on the adhesive, is an acrylic resin emulsion pressure-sensitive adhesive composition containing an acrylate ester and a water-soluble resin emulsion as main components. Things.
By dispersing the water-soluble resin emulsion formed into a protective colloid in the acrylic resin emulsion, the surface of the coating layer of the pressure-sensitive adhesive composition is dried on the surface of the coating layer of the water-soluble resin in a drying step at the time of coating in accordance with evaporation of moisture and the like. Moves to the surface of the coating layer to form a layer containing a large amount of the water-soluble resin component. Therefore, the pressure-sensitive pseudo-adhesive sheet coated with the pressure-sensitive adhesive composition of the present invention prevents the occurrence of blocking and the like. Or to prevent stickiness of the surface of the coated layer of the pressure-sensitive adhesive.

An acrylic resin emulsion pressure-sensitive adhesive composition containing an acrylate ester and a water-soluble resin emulsion as main components is prepared by adding hydrophilic fine particles to the acrylic resin emulsion pressure-sensitive adhesive composition. By applying pressure, it is possible to develop a pseudo-adhesive performance that allows re-peeling and bonding.

The mechanism is to use hydrophilic microparticles to attach an acrylic resin in an emulsion state to the surface of the hydrophilic microparticles, and to form a film-like adhesive component on the surface of the hydrophilic microparticles in the drying step. Characteristic is exhibited.

The surface of a layer coated with a pressure-sensitive adhesive composition having hydrophilic microparticles having an acrylic resin emulsion pressure-sensitive adhesive in the form of a film adhered to the surface of the layer to which the acrylic resin emulsion pressure-sensitive adhesive is attached Irregularities due to the conductive fine particles are formed, the irregularities shift when a predetermined pressure is applied, the surface of the coating layer becomes flat, and the bonding surface changes from point bonding due to the unevenness to surface bonding and pseudo bonding.

The bonding mechanism in this case uses a bonding mechanism such as self-diffusion of the acrylic resin emulsion pressure-sensitive adhesive surface, dipole force, hydrogen bonding, or physical entanglement of the polymer resin and paper fibers.

By using this bonding mechanism, printing and printing can be performed on the acrylic resin emulsion pressure-sensitive adhesive composition layer, and by using a rubber-based pressure-sensitive adhesive generally used conventionally. No yellowing of the carbonless system part, deterioration of carbonless coloring, and generation of stains do not occur.

The average particle diameter of the hydrophilic fine particles contained as a basic component in the acrylic resin emulsion pressure-sensitive adhesive composition used in the present invention may be in the range of 0.1 to 20 μm, preferably in the range of 1 to 15 μm. More preferred.

When the average particle diameter is less than 1 μm, the fine particles are easily peeled off from the pressure-sensitive adhesive applied layer,
If it is more than m, adverse effects such as insufficient adhesion and no carbon color stain may occur.

The average particle diameter of the hydrophilic fine particles is usually indicated by an average value of the size of one particle. For example, fine primary particles such as silica form a group, and it is as if When a behavior like one particle is shown, it means the average size of the group of particles (secondary particles).

The mixing ratio of the water-soluble resin emulsion to be dispersed in the acrylic resin emulsion used in the present invention is preferably 5 to 200 parts by weight of the water-soluble resin emulsion per 100 parts by weight of the acrylate ester. . If the compounding ratio is less than 5 parts by weight or 200 parts by weight or more, there is a possibility of causing problems such as occurrence of blocking or insufficient development of adhesive strength.

Therefore, in the present invention, at least 5
It is preferred that about 200 parts by weight of the water-soluble resin emulsion is dispersed in the acrylic resin emulsion. Preferably, an acrylic resin emulsion having a glass transition point in the range of −90 to 50 ° C. is used as an adhesive component in order to develop a suitable adhesive force.

The compounding ratio of the pressure-sensitive adhesive composition used in the present invention is preferably such that 5-200 parts by weight of hydrophilic fine particles are contained with respect to 100 parts by weight of the acrylic resin emulsion. If the compounding ratio is less than 5 parts by weight, the printing or printing suitability is insufficient, or if the compounding ratio is 200 parts by weight or more, the hydrophilic fine particles are easily peeled off from the pressure-sensitive adhesive applied layer or have sufficient adhesive force. There is a risk of adverse effects such as not being expressed.

Therefore, in the present invention, at least 5
It is preferred to use the hydrophilic fine particles in an amount of from 200 to 200 parts by weight in the pressure-sensitive adhesive composition. In the present invention, the amount of the pressure-sensitive adhesive composition applied to the substrate is
Normally, ^{2 to 20} g / m ^{2 in} order to develop proper adhesive strength
It is preferable to apply to the extent.

The hydrophilic fine particles used in the pressure-sensitive adhesive composition of the present invention include silica, charcoal, kaolin, clay,
Talc, aluminum hydroxide, titanium oxide, zinc oxide,
Activated clay, starch particles, cellulose particles, styrene resin particles, acrylic resin particles, urea resin particles, microcapsules, oil capsules, polyethylene, and among known inorganic or organic microparticles such as vinyl chloride,
It can be appropriately selected and used. Even fine particles that are inherently hydrophobic can be suitably used as long as they are processed to be hydrophilic.

These hydrophilic microparticles may be used alone or in combination of two or more. By using two or more kinds in combination, uneven unevenness is formed on the surface of the pressure-sensitive adhesive composition, and the expression of pseudo-adhesiveness is improved. In the present invention, the inclusion of hydrophilic and more preferably non-thermoplastic fine particles in the pressure-sensitive adhesive composition can maintain the shape of unevenness in a printing method requiring heat, such as electrophotographic printing. It is preferred in terms of.

The water-soluble resin emulsion dispersed in the acrylic resin emulsion used in the pressure-sensitive adhesive composition of the present invention includes polyvinyl alcohol, carboxymethyl cellulose, polyvinyl pyrrolidone, polyacrylic acid,
From among known water-soluble polymers such as polyacrylamide, ethylene-maleic anhydride copolymer, styrene-maleic anhydride copolymer, methyl vinyl ether-maleic anhydride copolymer, isobutylene-maleic anhydride copolymer, etc. Can be appropriately selected and used. These resins may be used alone or in combination of two or more. In the present invention, it is preferable to use a styrene-maleic anhydride copolymer excellent in UV resistance, printability, blocking resistance and the like.

The peel strength of the pressure-sensitive adhesive composition is 20 ° C., 5
The test piece was allowed to stand for 30 minutes or more in an environment of 0% RH, and was pseudo-bonded through a gap of 150 μm using a crimping machine manufactured by Dai Nippon Printing Co. or Moore Co., Ltd., and cut into a width of 5 cm.
The T-peel preferably has a tensile strength of 200 g or more.

The pressure-sensitive adhesive composition may further contain a surfactant, an antifoaming agent, a thickener, a water-proofing agent, a dispersant,
UV absorbers, antioxidants, antistatic agents, ink fixing agents, dye fixing agents, fluorescent dyes, colored dyes, lubricants, deodorants,
Auxiliary agents such as deodorants and antibacterial agents can be added.

As the base material used in the present invention, for example, high quality paper, medium quality paper, recycled paper, art paper, coated paper, lightly coated paper, synthetic paper, film, laminated paper, metallized paper, etc. are used. it can.

In the present invention, the color former, the developer and the pressure-sensitive adhesive composition are applied to a substrate by a conventional method such as a blade coater, an air knife coater, a bar coater, a roll coater, a gravure printing machine, a screen printing machine and the like. It can be provided using a known coating machine or printing machine.

Further, by performing embossing and pressurizing, the adhesiveness of the pressure-sensitive adhesive in the embossed portion is suppressed, and coloring due to pressure is suppressed. The embossing pressure is applied to rolls or rolls provided with recesses to which pressure is not applied, a pressing plate, a combination of rolls and pressing plates, etc.
It can be performed by a physical method. The range where pressure is not applied is
It can be set arbitrarily according to the range of the concave portion.

The total amount of the colorant-applied sheet mainly composed of a pressure-sensitive adhesive, a colorant and other auxiliary agents is 0.5 to 50 g / m 2.
² is appropriate, but in order to promote environmental protection by reusing the base, 1.0 to 20 g / m ² is required to be able to remove the coating layer when reusing, to recover the raw material pulp, etc., and to wash the material. It is more preferable from the viewpoint of efficiency and dispersibility.

The application amount of the microcapsules, the pressure-sensitive adhesive, and the like on the back surface of the color-developing agent-coated sheet can be appropriately determined in accordance with the expressiveness of information recording in combination with the color-developing agent-coated sheet. In the configuration of the developer application sheet and the colorant application sheet, the total thickness of the developer application sheet and the colorant application sheet is not limited, but the total thickness of the entire delivery slip is not limited to supply to the printer. It is desirable that the thickness be 250 μm or less.

[0030]

DESCRIPTION OF THE PREFERRED EMBODIMENTS This information carrier sheet is formed by combining a color developing agent coated sheet provided with a color developing agent layer so as to face the color developing agent layer of the color developing agent coated sheet to print or print information. This information is copied and entered.

A preferred embodiment in which the present invention is applied to a delivery slip 1 will be described below in detail with reference to the drawings. Here, FIG. 1 is a perspective view of the delivery slip 1, and FIG. 2 is a cross-sectional view of the delivery slip 1 along the line AA. FIG. 3 is a cross-sectional view taken along line AA when the color forming agent application sheet 2 of FIG. 1 is removed.

(Embodiment) As shown in FIG. 1, a delivery slip 1 composed of an information carrier sheet is composed of a coloring agent coated sheet 2,
The developer applying sheet 3 is combined with the developer applying sheet 3
The pressure-sensitive adhesive composition layer 10 is provided on the back of
2 is printed, printed or entered. In addition, various guide information and record information are recorded in advance by printing or by various recording devices according to the purpose. OCR information such as a bar code is also recorded. Both ends 4, 5 of the delivery slip 1 are combined with an adhesive 6 and are configured to be separable at a perforation 7.

As can be understood from FIG. 1, a color developing agent layer 8 is provided on the back surface of the color developing agent application sheet 2, and a color developer layer 9 is applied on the surface of the color developing agent application sheet 3.

Next, the means for creating the above-mentioned delivery slip 1 shown in FIG. 2 will be described. First, a developer application sheet 3 having the same size as the colorant application sheet 2 and provided with a colorant layer 9 so as to correspond to the colorant layer 8 on the back surface of the colorant application sheet 2 is prepared. The color-developing agent application sheet 2 is superimposed on the color-developing agent application sheet 3 so that the color-developing agent layer 8 is opposed to a portion where the color-developing agent layer 9 is provided, and provided on both ends of the color-developing agent application sheet 3. Adhesion 6 is used to make adhesion difficult. Adhesive 6
For example, an acrylic adhesive or the like generally used conventionally can be used.

Thus, by printing or printing the address information 11 from the developer application sheet 2 by physical means,
Copies can be made on the color forming agent application sheet 3. The color-developing agent-coated sheet 2 can be cut off at the perforation 7 and used as a copy.

Next, the developer coating sheet 3 is releasably adhered to the delivery with a predetermined pressure with the pressure-sensitive adhesive composition layer 10 and transmitted to the recipient by communication means.

The receiver can peel the developer coating sheet 3 and read the information 12 printed or printed on the pressure-sensitive adhesive composition layer 10.

[0038]

As described above, according to the present invention, there is no generation of stains by the dye capsule, no problem of peeling in the middle of the mailing means, and by peeling again, printing on the pressure-sensitive adhesive composition layer is achieved. Further, an information carrier sheet from which printed information can be read can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a delivery slip 1. FIG.

FIG. 2 is a sectional view of the delivery slip 1 taken along line AA.

FIG. 3 shows A when the colorant-applied sheet of FIG. 1 is removed.
FIG. 4 is a cross-sectional view taken along a line A.

[Description of Signs] 1 ... Delivery slip, 2 ... Coloring agent coated sheet, 3 ... Developer coated sheet, 4 ... Delivery slip right end, 5 ... Delivery slip left end, 6 ... Adhesive, 7 ... Perforation, 8 ... Coloring Developer layer, 9: developer layer, 1
0 ... pressure-sensitive adhesive composition layer, 11 ... address information, 12 ... information. ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] April 26, 1999

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Delivery sheet

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carbonless copying sheet in which a color-developing agent-coated sheet and a color-developing agent-coated sheet are combined. The present invention relates to a delivery sheet provided with an adhesive layer capable of printing or printing information on an adhesive, which does not normally adhere but is releasably adhered by applying a predetermined pressure.

[0002]

2. Description of the Related Art Conventionally, a carbonless copying sheet comprising a combination of a coloring agent-applied sheet and a color-developing agent-applied sheet is provided with a non-peelable pressure-sensitive adhesive at the end of the copying sheet, and the pressure is applied by pressure. Adhesive combinations and adhesives provided on the developer-uncoated surface of the developer-coated sheet are applied to mailings, and are widely used for delivery slips, address labels, and the like.

[0003]

However, in this case, since a pressure-sensitive adhesive is provided on the back surface, a protective release paper is required.
Handling was complicated, and information could not be recorded on the pressure-sensitive adhesive side.

[0004] Accordingly, an object of the present invention is to provide a delivery sheet that has solved such inconveniences.

[0005]

SUMMARY OF THE INVENTION The present invention, which has solved the above-mentioned problems, is a combination of a carbonless recording type sheet formed by a combination of a color-developing agent-coated sheet and a color-developing agent-coated sheet. The opposite side of the developer application surface is a pressure writing surface, and the pressure-sensitive adhesive is capable of printing information or printing information on an adhesive, which can be re-peeled after bonding on the opposite surface of the developer application sheet from the developer application surface. An ink composition layer is provided, and information is printed or displayed on the surface of the pressure-sensitive adhesive composition layer, and the colorant-coated surface of the colorant-coated sheet and the colorant of the colorant-coated sheet are provided. A perforation in which both sides of each of the sheets are integrated with an adhesive so as to face the application surface to obtain an integrated sheet, and both sides of the integrated sheet are torn off and discarded on both inner sides of the integrated portion. To form
After pressure writing is performed on the opposite surface of the color forming agent application surface, both sides of the integrated sheet are torn and discarded, and the developer application sheet alone passes through the pressure-sensitive adhesive composition layer. A delivery sheet characterized in that it is configured to be releasably attached to an object to be attached to be a delivery item.

In the production of a copying sheet by the carbonless method, a color former containing microcapsules encapsulating a colorless dye is provided on the surface of the upper sheet substrate serving as the color former coated sheet, which is in contact with the developer coated surface. Formed as a layer, a developer that develops by adsorbing the encapsulated pigment by breaking the microcapsules by pressure printing on the surface of the lower sheet substrate that is to be the developer application sheet and that is in contact with the colorant application surface Can be manufactured by a conventionally used technique of forming a layer.

The adhesive used in the present invention, which can be re-peeled after bonding and can print or print information on the adhesive, is, for example, an acrylic emulsion pressure-sensitive adhesive containing an acrylate ester and a water-soluble resin emulsion as main components. A composition. By dispersing the water-soluble resin emulsion formed into a protective colloid in the acrylic emulsion, the surface of the coating layer of the pressure-sensitive adhesive composition is coated with the water-soluble resin in a drying step during coating in accordance with evaporation of moisture and the like. Moves to the surface of the coating layer to form a layer containing a large amount of the water-soluble resin component. Therefore, the pressure-sensitive pseudo-adhesive sheet coated with the pressure-sensitive adhesive composition of the present invention prevents the occurrence of blocking and the like. Or to prevent stickiness of the surface of the coated layer of the pressure-sensitive adhesive.

An acrylic emulsion pressure-sensitive adhesive composition containing an acrylate ester and a water-soluble resin emulsion as main components is prepared by adding hydrophilic microparticles to the acrylic emulsion pressure-sensitive adhesive composition. By applying pressure, it is possible to develop a pseudo-adhesive performance that allows re-peeling and bonding.

The mechanism is to use hydrophilic microparticles to attach an acrylic resin in an emulsion state to the surface of the hydrophilic microparticles, and to form a film-like adhesive component on the surface of the hydrophilic microparticles in the drying step. Characteristic is exhibited.

[0010] The surface of the layer coated with the pressure-sensitive adhesive composition containing hydrophilic microparticles having the acrylic emulsion pressure-sensitive adhesive adhered in a film form on the surface is coated with the acrylic emulsion pressure-sensitive adhesive. Irregularities due to the conductive fine particles are formed, the irregularities shift when a predetermined pressure is applied, the surface of the coating layer becomes flat, and the bonding surface changes from point bonding due to the unevenness to surface bonding and pseudo bonding.

The bonding mechanism in this case uses a bonding mechanism such as self-diffusion on the surface of the acrylic emulsion pressure-sensitive adhesive, dipole force, hydrogen bonding, or entanglement of a physical polymer resin with paper fibers or the like.

By using this bonding mechanism, printing and printing can be performed on the acrylic emulsion pressure-sensitive adhesive composition layer, and the conventional rubber-based pressure-sensitive adhesive is generally used. No yellowing of the carbonless system part, deterioration of carbonless coloring, and generation of stains do not occur.

The average particle diameter of the hydrophilic fine particles contained as a basic component in the acrylic emulsion pressure-sensitive adhesive composition used in the present invention is in the range of 0.1 to 20 μm, preferably in the range of 1 to 15 μm. More preferred.

When the average particle diameter is less than 1 μm, the fine particles are easily peeled off from the pressure-sensitive adhesive applied layer,
If it is more than m, adverse effects such as insufficient adhesion and no carbon color stain may occur.

The average particle diameter of the hydrophilic fine particles is usually indicated by an average value of the size of one particle. For example, fine primary particles such as silica form a group, and it is as if When a behavior like one particle is shown, it means the average size of the group of particles (secondary particles).

The mixing ratio of the water-soluble resin emulsion to be dispersed in the acrylic emulsion used in the present invention is preferably such that 5-200 parts by weight of the water-soluble resin emulsion is dispersed per 100 parts by weight of the acrylate ester. . If the compounding ratio is less than 5 parts by weight or 200 parts by weight or more, there is a possibility of causing problems such as occurrence of blocking or insufficient development of adhesive strength.

Therefore, in the present invention, at least 5
It is preferable that about 200 parts by weight of the water-soluble resin emulsion is dispersed in the acrylic emulsion. Preferably, the glass transition point is −
It is preferable to use an acrylic emulsion in the range of 90 to 50 ° C as the adhesive component.

The compounding ratio of the pressure-sensitive adhesive composition used in the present invention is preferably such that 5-200 parts by weight of hydrophilic fine particles are contained per 100 parts by weight of the acrylic emulsion. If the compounding ratio is less than 5 parts by weight, the printing or printing suitability is insufficient, or if the compounding ratio is 200 parts by weight or more, the hydrophilic fine particles are easily peeled off from the pressure-sensitive adhesive applied layer or have sufficient adhesive force. There is a risk of adverse effects such as not being expressed.

Therefore, in the present invention, at least 5
It is preferred to use the hydrophilic fine particles in an amount of from 200 to 200 parts by weight in the pressure-sensitive adhesive composition. In the present invention, the amount of the pressure-sensitive adhesive composition applied to the substrate is
Normally, ^{2 to 20} g / m ^{2 in} order to develop proper adhesive strength
It is preferable to apply to the extent.

The hydrophilic fine particles used in the pressure-sensitive adhesive composition of the present invention include silica, charcoal, kaolin, clay,
Talc, aluminum hydroxide, titanium oxide, zinc oxide,
Activated clay, starch particles, cellulose particles, styrene resin particles, acrylic resin particles, urea resin particles, microcapsules, oil capsules, polyethylene, and among known inorganic or organic microparticles such as vinyl chloride,
It can be appropriately selected and used. Even fine particles that are inherently hydrophobic can be suitably used as long as they are processed to be hydrophilic.

These hydrophilic microparticles may be used alone or in combination of two or more. By using two or more kinds in combination, uneven unevenness is formed on the surface of the pressure-sensitive adhesive composition, and the expression of pseudo-adhesiveness is improved. In the present invention, the inclusion of hydrophilic and more preferably non-thermoplastic fine particles in the pressure-sensitive adhesive composition can maintain the shape of unevenness in a printing method requiring heat, such as electrophotographic printing. It is preferred in terms of.

The water-soluble resin emulsion to be dispersed in the acrylic emulsion used in the pressure-sensitive adhesive composition of the present invention includes polyvinyl alcohol, carboxymethyl cellulose, polyvinyl pyrrolidone, polyacrylic acid, polyacrylamide, and ethylene-maleic anhydride. Polymers, styrene-maleic anhydride copolymers, methyl vinyl ether-maleic anhydride copolymers, isobutylene-maleic anhydride copolymers and other known water-soluble polymers can be appropriately selected and used. it can. These resins may be used alone or in combination of two or more. In the present invention, it is preferable to use a styrene-maleic anhydride copolymer excellent in UV resistance, printability, blocking resistance and the like.

The peel strength of the pressure-sensitive adhesive composition is 20 ° C., 5
The test piece was allowed to stand for 30 minutes or more in an environment of 0% RH, and was pseudo-bonded through a gap of 150 μm using a crimping machine manufactured by Dai Nippon Printing Co. or Moore Co., Ltd., and cut into a width of 5 cm.
The T-peel preferably has a tensile strength of 200 g or more.

The pressure-sensitive adhesive composition may further contain a surfactant, an antifoaming agent, a thickener, a water-proofing agent, a dispersant,
UV absorbers, antioxidants, antistatic agents, ink fixing agents, dye fixing agents, fluorescent dyes, colored dyes, lubricants, deodorants,
Auxiliary agents such as deodorants and antibacterial agents can be added.

As the base material used in the present invention, for example, high quality paper, medium quality paper, recycled paper, art paper, coated paper, lightly coated paper, synthetic paper, film, laminated paper, metallized paper, etc. are used. it can.

In the present invention, the color former, the developer and the pressure-sensitive adhesive composition are applied to a substrate by a conventional method such as a blade coater, an air knife coater, a bar coater, a roll coater, a gravure printing machine, a screen printing machine and the like. It can be provided using a known coating machine or printing machine.

Further, by performing embossing and pressurizing, the adhesiveness of the pressure-sensitive adhesive in the embossed portion is suppressed, and coloring due to pressure is suppressed. The embossing pressure is applied to rolls or rolls provided with recesses to which pressure is not applied, a pressing plate, a combination of rolls and pressing plates, etc.
It can be performed by a physical method. The range where pressure is not applied is
It can be set arbitrarily according to the range of the concave portion.

The total amount of the colorant-applied sheet mainly composed of a pressure-sensitive adhesive, a colorant and other auxiliary agents is 0.5 to 50 g / m 2.
² is appropriate, but in order to promote environmental protection by reusing the base, 1.0 to 20 g / m ² is required to be able to remove the coating layer when reusing, to recover the raw material pulp, etc., and to wash the material. It is more preferable from the viewpoint of efficiency and dispersibility.

The application amount of the microcapsules, the pressure-sensitive adhesive, and the like on the back surface of the color-developing agent-coated sheet can be appropriately determined in accordance with the expressiveness of information recording in combination with the color-developing agent-coated sheet. In the configuration of the developer application sheet and the colorant application sheet, the total thickness of the developer application sheet and the colorant application sheet is not limited, but the total thickness of the entire delivery slip is not limited to supply to the printer. It is desirable that the thickness be 250 μm or less.

[0030]

BEST MODE FOR CARRYING OUT THE INVENTION The delivery sheet of the present invention is combined with a color-developing agent-coated sheet provided with a color-developing agent layer so as to face the color-developing agent layer of the color-developing agent-coated sheet, and prints or prints information. As a result, this information is copied and entered.

A preferred embodiment in which the present invention is applied to a delivery slip 1 will be described below in detail with reference to the drawings. Here, FIG. 1 is a perspective view of the delivery slip 1, and FIG. 2 is a cross-sectional view of the delivery slip 1 along the line AA. FIG. 3 is a cross-sectional view taken along line AA when the color forming agent application sheet 2 of FIG. 1 is removed.

(Embodiment) As shown in FIG. 1, a delivery slip 1 composed of a delivery sheet is formed by combining a color-developing agent application sheet 2 and a color-developing agent application sheet 3 so that the back surface of the color-developing agent application sheet 3 is felt. A pressure-sensitive adhesive composition layer 10 is provided, and information 12 is printed, printed, or written. In addition, various guide information and record information are recorded in advance by printing or by various recording devices according to the purpose. O such as barcode
CR information and the like are also recorded. Both ends 4, 5 of the delivery slip 1 are combined with an adhesive 6 and are configured to be separable at a perforation 7.

As can be understood from FIG. 1, a color developing agent layer 8 is provided on the back surface of the color developing agent application sheet 2, and a color developer layer 9 is applied on the surface of the color developing agent application sheet 3.

Next, the means for creating the above-mentioned delivery slip 1 shown in FIG. 2 will be described. First, a developer application sheet 3 having the same size as the colorant application sheet 2 and provided with a colorant layer 9 so as to correspond to the colorant layer 8 on the back surface of the colorant application sheet 2 is prepared. The color-developing agent application sheet 2 is superimposed on the color-developing agent application sheet 3 so that the color-developing agent layer 8 is opposed to a portion where the color-developing agent layer 9 is provided, and provided on both ends of the color-developing agent application sheet 3. Adhesion 6 is used to make adhesion difficult. Adhesive 6
For example, an acrylic adhesive or the like generally used conventionally can be used.

Thus, by printing or printing the address information 11 from the developer application sheet 2 by physical means,
Copies can be made on the color forming agent application sheet 3. The color-developing agent-coated sheet 2 can be cut off at the perforation 7 and used as a copy.

Next, the developer coating sheet 3 is releasably adhered to the delivery with a predetermined pressure with the pressure-sensitive adhesive composition layer 10 and transmitted to the recipient by communication means.

The receiver can peel the developer coating sheet 3 and read the information 12 printed or printed on the pressure-sensitive adhesive composition layer 10.

[0038]

As described above, according to the present invention, the information printed or printed on the pressure-sensitive adhesive composition layer can be read by re-peeling without any problem of peeling in the middle of mailing means. A possible delivery sheet can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of a delivery slip.

FIG. 2 is a sectional view of the delivery slip taken along line AA.

FIG. 3 shows A when the colorant-applied sheet of FIG. 1 is removed.
FIG. 4 is a cross-sectional view taken along a line A.

[Description of Signs] 1 ... Delivery slip, 2 ... Coloring agent coated sheet, 3 ... Developer coated sheet, 4 ... Delivery slip right end, 5 ... Delivery slip left end, 6 ... Adhesive, 7 ... Perforation, 8 ... Coloring Developer layer, 9: developer layer, 1
0 ... pressure-sensitive adhesive composition layer, 11 ... address information, 12 ... information.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshihiro Maekawa 5-1, Kamiyacho, Iyo Mishima City, Ehime Prefecture Daio Paper Co., Ltd.

Claims (1)

[Claims] Claims: 1. A carbon-free information carrier sheet comprising a combination of a color-developing agent-coated sheet and a color-developing agent-coated sheet, wherein the color-developing agent-coated sheet has a color-developing agent-coated surface; At least one surface of the developer-coated sheet which is not coated with the developer contains an acrylic resin emulsion containing an acrylate ester and a water-soluble resin emulsion as main components, and hydrophilic fine particles as basic components. An information carrier sheet, comprising: a pressure-sensitive adhesive composition layer which can be re-peeled after adhesion and prints or prints information on the adhesive.