JP2005141041A - Label and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a label which permits easy separated disposal treatment of a base material after clipping of a label section and used release paper as paper and can be recycled as a paper resource as well. <P>SOLUTION: The label is obtained by applying a pressure-sensitive adhesive to a portion corresponding to a label section on the rear surface of a base material 1 printed with the label section 4 on the front surface in the same area as the size of the label section or in the area smaller than the label section, forming a adhesive 2 by curing the pressure-sensitive adhesive, laminating the base material 1 and the release paper 3, then clipping only the base material 1 in the label section 4 of the base material 1 without cutting the release paper 3 with a cutting die of the same shape as the shape of the label section. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a label that can reuse at least the base material after the label portion is cut out from the base material bonded to the release paper with an adhesive, and a method for manufacturing the label.

  Various labels are used for the purpose of simple display. 3 and 4 show examples of conventional labels that are widely used. As shown in FIG. 4, the conventional label prints a label portion 4 made of predetermined characters or designs on the surface of a base material (printing paper) 1, and is water-based or solvent-type on the entire back surface of the base material 1. After the pressure-sensitive adhesive 2 formed from a pressure-sensitive adhesive is applied and bonded to the release paper 3, the label portion of the substrate 1 can be obtained by cutting out only the substrate 1 on the surface with a blade shape. Since the cut-out label portion 4 is in a state of being stuck to the release paper 3 as shown in FIG. 3 when the substrate 1 from which the label portion has been cut off is peeled off from the release paper 3, it is attached to the release paper 3 as shown in FIG. Use as a label. Or after cutting out a label part, it peels and uses only the label part 4 in the state which does not peel the base material 1. FIG.

  In such a label, conventionally, an aqueous or solvent type pressure sensitive adhesive is used as the pressure-sensitive adhesive. Although not shown, the release paper is formed by forming a polyethylene film, for example, on the entire surface (bonding surface) and applying a silicone resin or the like on the film to make the release paper.

  In such a conventional label manufacturing process, a large amount of base material (hereinafter referred to as a cut-out base material) after the label portion is cut out is generated. However, in the conventional label, since the adhesive is applied to the entire back surface of the base material as described above, the adhesive is adhered to the back surface of the cut-out base material (see FIG. 3). However, the cut-out base material cannot be easily separated and disposed of as paper, and cannot be reused as paper resources. For this reason, these cut-out base materials require special treatment at a high cost, and have problems in terms of resources and the environment, causing high prices for labels. As described above, one of the backgrounds in which the conventional label applies the pressure-sensitive adhesive to the entire surface of the substrate is that the pressure-sensitive adhesive is formed with a solvent-based adhesive, and the pressure-sensitive adhesive is formed on a limited portion of the substrate. However, since it tends to ooze around the periphery after application, there is a situation that it is difficult to form it on a limited portion of the substrate.

  Further, the release paper after the label is peeled off is also used because the polyethylene film and silicon resin forming the peelable film are provided on the entire surface of the paper as described above. There was a similar problem.

  It is an object of the present invention to provide a label that can be reused by reclaiming a cut-out base material that is handled as conventional waste and is difficult to separate.

  Furthermore, another object of the present invention is to make it possible to recycle used release paper after label peeling by reducing the area of the peelable film which is an adverse effect on the regeneration of the release paper.

The present invention has been made in order to achieve the above object, and as a result of earnestly examining the recycling method and processing method of the base material and release paper, the pressure-sensitive adhesive applied to the base material, and further the release formed on the release paper It was found that the adhesive film can be realized in a limited manner corresponding to the label portion printed on the base material, and by using an adhesive and a peelable ink that are substantially free from harmful effects. is there. That is, this invention provides the following label and its manufacturing method.
(1) A substrate in which a label portion having a predetermined size is printed on the surface with characters or designs and a release paper having a peelable film on the surface are bonded together with an adhesive, and the adhesive is pressure sensitive. A label characterized in that it is formed with an area equal to or smaller than the size of the label portion on the bonding surface of the substrate by an adhesive.
(2) The label according to (1), wherein the pressure-sensitive adhesive is an ultraviolet curable pressure-sensitive adhesive.
(3) The label according to (1) or (2), wherein the adhesive is applied in an area smaller by 0 to 0.5% than the size of the label part.
(4) The label according to (1), wherein the peelable film is formed only in a portion corresponding to the adhesive application portion of the base material with an area slightly larger than the application area of the adhesive.
(5) The label according to any one of (1) to (4), wherein the peelable film is formed of a peelable ink.
(6) The label according to any one of (1) to (5), wherein the release paper is made of the same material as the base material.
(7) A pressure-sensitive adhesive is applied to a portion corresponding to the label portion on the back surface of the substrate on which the label portion is printed on the front surface in the same size as the label portion or smaller than the label portion, and this pressure-sensitive adhesive Is cured to form a pressure-sensitive adhesive, and the base material and release paper are bonded together, and then the label portion of the bonded base material is cut out only by cutting the base material without cutting the release paper with a blade shape to obtain a label A method for producing a label characterized by the above.
(8) The method for producing a label according to (7), wherein a peelable film is formed on an area corresponding to the adhesive application portion of the base of the release paper with an area slightly larger than the application area of the adhesive.

  In the present invention, the pressure-sensitive adhesive is formed in the area corresponding to the label part on the back surface of the substrate on which the label part is printed on the front surface with the same size as the label part or smaller than the label part. When the label part of the base material bonded to the release paper with an adhesive is cut out with a blade shape, the adhesive is not attached to the cut-out base material. Thereby, since this cut-out base material can be used for recycling without performing a special separation process, resources can be reused and an environmentally friendly label can be obtained. Furthermore, since the adhesive is not applied to the edge of the blade mold, it is easy to remove the base material, and at the same time, the adhesive does not adhere to the blade mold. If the adhesive is applied to the entire surface as in the past, even if it is punched out with a blade mold, the adhesive will remain resilient even if it is cut off, and it will stick to each other, and the necessary labels will be discarded Although it follows the substrate, this is not the case with the labels of the present invention.

  In addition, since the pressure sensitive adhesive is formed of an ultraviolet curable pressure sensitive adhesive that does not contain a solvent, the pressure sensitive adhesive can be formed without bleeding, and thereby high application accuracy can be obtained. It can be easily formed limited to the corresponding part.

  Furthermore, in a preferred embodiment of the present invention, the peelable film is formed on the release paper only on the portion of the base material corresponding to the adhesive, so that the used release paper can be reused. In addition, when the same paper as the base material is used for the release paper, it can be reused together with the base material, so that the reuse of resources can be further promoted.

  In the present invention, the label is bonded to the release paper with the adhesive having the label portion printed on the surface, and the adhesive is applied to the back surface, and the label portion of this substrate is only the substrate without cutting the release paper with the blade shape. It is obtained by cutting out

  In the production of such a label, the present invention uses a pressure-sensitive adhesive as the pressure-sensitive adhesive, and the part corresponding to the label portion printed on the surface of the back surface of the substrate (bonding surface with the release paper), The pressure-sensitive adhesive is applied in an area equal to or smaller than the size of the label portion.

  Next, a label and a manufacturing method thereof according to the present invention will be described with reference to the drawings. FIG. 1 is a plan view of a label according to the present invention, and FIG. 2 is a sectional view taken along line AA of FIG. These drawings show examples of the present invention, and the present invention is not limited to these drawings and the description thereof. Further, the same members as those in the conventional example of FIGS. 3 and 4 are denoted by the same reference numerals for easy comparison.

  In the present invention, the label portion 4 is displayed with characters, patterns, etc. printed on one side (front surface) of the substrate 1. The material of the substrate 1 is not specified as long as it can print the label portion 4 and has desired strength and flexibility, but usually paper or plastic is used. In this case, when the base material 1 is a transparent plastic, the label part printed on the back surface can be displayed on the surface, and the base material on which the label part is printed on the front surface in the present invention includes such an embodiment. It is out. In addition, the size, shape, thickness, and the like of the substrate 1 can be determined as appropriate, and the number of label portions 4 printed on the substrate and the printing method are not limited.

  In the present invention, the adhesive 2 is applied to the portion corresponding to the label portion 4 on the back surface of the substrate 1 having the label portion 4 printed on the front surface in an area equal to or smaller than the size of the label portion 4. To do. In the present invention, this area means the area (size) when the shapes of the pressure-sensitive adhesive 2 and the label portion 4 are the same or similar. In order to form the pressure-sensitive adhesive 2 on the corresponding portion of the label portion 4 with high accuracy, printing is preferable as the coating method, and screen printing is particularly preferable. However, it can also be applied using brushes, rolls, sprays, flexographic printing, letterpress printing, rotary printing, and the like.

  In the present invention, the pressure-sensitive adhesive 2 can be formed of various pressure-sensitive adhesives such as ultraviolet curing, thermosetting, and solventless. Among these, an ultraviolet curable adhesive that can be easily cured by ultraviolet irradiation (hereinafter referred to as an ultraviolet adhesive) is most preferable. As this ultraviolet type adhesive, for example, “JELCON RAYTACK” (trade name of Jujo Chemical Co., Ltd.) can be mentioned, and the ultraviolet type adhesive is an adhesive film having excellent adhesiveness by irradiating ultraviolet rays after application. Can be obtained. In this case, ultraviolet rays are usually irradiated before being bonded to the release paper, and an adhesive film is formed on the bonding surface of the substrate 1 and then bonded to the release paper. In the case of a film made of polyethylene or the like, an adhesive film may be obtained by attaching a base material to the film to which an ultraviolet adhesive has been applied and then curing the film by irradiating with ultraviolet rays. When ultraviolet rays are irradiated after pasting the release paper by such a method, the surface of the pressure-sensitive adhesive can be formed smoothly because the film surface is smooth. In addition, since the ultraviolet-type adhesive does not contain an organic solvent in the composition, the adhesive 2 can be applied to the substrate 1 with high accuracy without causing blurring in the periphery when printed. Furthermore, since it is an ultraviolet curable type, it cures quickly at room temperature compared to conventional water-based and solvent-type pressure-sensitive adhesives, and excellent coating accuracy and productivity can be obtained.

  In the present invention, the pressure-sensitive adhesive 2 is formed on the back surface of the substrate 1 corresponding to the label part 4 with a pressure-sensitive adhesive so as to have an area equal to or smaller than the size of the label part 4. That is, the pressure-sensitive adhesive 2 is formed so as not to protrude from the range of the label portion 4. In this example, as shown in FIG. 1, the pressure-sensitive adhesive 2 is formed with an area smaller than the size of the label portion 4, but the size of the pressure-sensitive adhesive 2 and the label portion 4 may be the same.

  Next, the adhesive 2 will be specifically described with reference to FIG. In FIG. 2, a indicates the size of the label portion 4 printed on the surface of the substrate 1, and b indicates the size of the adhesive 2 applied to the portion corresponding to the label portion 4 on the back surface of the substrate 1. Indicates. In the figure, reference numeral 5 denotes a cutout position of the label portion 4. In this example, the relationship between a and b is a ≧ b in an arbitrary longitudinal section of the label portion 4, and the adhesive 2 is applied so that it does not substantially protrude in any of the periphery of the label portion 4. In this case, how much the adhesive 2 can be made small relative to the label part 4 is not limited in relation to the application accuracy of the adhesive 2, but if the application area of the adhesive 2 is too small relative to the label part 4, Since there are many portions where the adhesive 2 is not applied around the label portion 4, this is not preferable. Therefore, it is most preferable to apply a pressure-sensitive adhesive 2 accurately corresponding to the label portion 4 with a = b, and to form the entire back surface of the label portion 4. There is a risk of protruding. Taking these into consideration, the adhesive 2 is preferably provided in an area reduced by about 0 to 0.5% with respect to the label portion 4.

  Next, the release paper 3 will be described. The release paper 3 is preferably paper, and most preferably the same paper as the substrate 1 is used. This is because if the release paper 3 is the same paper as the base material 1, the used release paper can be reused together with the base material 1. However, plastic films such as polypropylene and polyethylene can also be used. And, if this film is UV transmissive, it can be cured by irradiating the UV-type adhesive applied to the substrate in the state of being bonded to the substrate as described above by irradiating with UV rays. It becomes possible.

  A release film is formed on the surface of this release paper as in the case of conventional release paper. In the present invention, when the release paper after use is not reused, this peelable film may be formed on the entire surface of the release paper. However, when the release paper after use is recycled, the peelable film is formed on the base of the release paper. It is preferable to form it limited to the bonding portion with the material, that is, limited to the portion corresponding to the adhesive 2 formed on the substrate 1. That is, as shown in FIG. 2, the peelable film 6 is not formed on the entire surface of the release paper 3 unlike the conventional case, and is formed only on the portion corresponding to the adhesive 2 formed on the substrate 1. Further, as shown in FIG. 2, when the size of the peelable film 6 is c, c> b, and an area slightly larger than the size of the pressure-sensitive adhesive 2 is formed. The peelable film 6 and the pressure-sensitive adhesive 2 may be the same size, but when both are the same size, the pressure-sensitive adhesive 2 deviates from the peelable film 6 and forms the peelable film 6 when they are slightly shifted. Since it adheres to the part which is not done, it becomes difficult to peel off the label part 4 from the release paper 3. On the other hand, if the peelable film 6 is preferably made wider than the application area of the adhesive 2 by about 0.5%, even if the adhesive 2 slightly deviates from the peelable film 6, it deviates from the peelable film 6. The substrate 1 can be bonded to the release paper 3 without doing so.

  In the present invention, the peelable film 6 is preferably formed of a peelable ink. Examples of the releasable ink include, for example, 5-silicon resin mixed OP varnish (manufactured by Toyo Ink Co., Ltd.), light set OP varnish (manufactured by Osaka Ink Co., Ltd.), opitone ECO varnish (manufactured by Toyo Ink Co., Ltd.), UV peel OP varnish (Tohoku dye) For example). These releasable inks can be applied or printed without a polyethylene film on the surface of the paper, and even if they are attached to the release paper 3 after use, Since it does not become a big trouble, it is excellent as a material of the peelable film 6. However, when the release paper 3 is handled as waste without being reused, the peelable film 6 may be formed of, for example, polyethylene and silicon resin conventionally used other than the peelable ink.

  The label portion 4 is formed by using the label portion cutout position 5 (see FIG. 2) of the substrate 1 bonded to the release paper 3 with the blade shape (not shown) having the shape of the label portion 4. It is obtained by cutting out only the base material 1 without cutting. Since the cut-out label portion 4 is in a state of being stuck on the release paper 3, more precisely on the peelable film 6, it can be peeled off and used. At that time, since the pressure-sensitive adhesive 2 is slightly smaller than the size of the label portion 4, a portion where the pressure-sensitive adhesive is not formed on the edge portion of the label portion 4 is obtained, and therefore the label portion 4 is peeled off from the release paper 3. Cheap. The base material 1 after the label part 4 is cut out can be taken out in a state separated from the release paper 3 because the adhesive 2 is not attached, and the adhesive 2 that causes harmful effects when further regenerated is substantially present. It can be reused or discarded as it is without any special separation or processing.

  On the other hand, the used release paper 3 after peeling off the label part 4 has only the peelable film 6 partially formed, so that the amount of adhesion can be reduced to half or less. Further, if the peelable film 6 is formed of a peelable ink, it hardly interferes with the regeneration of the release paper 3, so that the used release paper 3 can be reused or discarded in the same manner as the cut-out substrate 1. it can. And when the same paper as the base material 1 is used for the release paper 3, it can be used for recycling together with the cut-out base material 1.

  According to the present invention, since the adhesive is not attached to the base material after the label portion of the base material is cut out with a blade mold, the base material can be easily disposed of and reused as a paper resource. It can be applied to resource reuse, environmental improvement, etc.

Is the plane of the label according to a preferred embodiment of the present invention. FIG. 2 is a cross-sectional view taken along a line AA in FIG. Is a developed view of a conventional label. FIG. 2 is a cross-sectional view of the label of FIG.

Explanation of symbols

1: base material, 2: adhesive,
3: Release paper, 4: Label part,
5: Label cutout position, 6: Release film

Claims (8)

  A base material on which a label portion of a predetermined size is printed on the surface with letters or designs and a release paper having a peelable film on the surface are bonded together with an adhesive, and the adhesive is formed by a pressure sensitive adhesive. A label characterized in that it is formed on the bonding surface of the base material with an area equal to or smaller than the size of the label portion.   The label according to claim 1, wherein the pressure-sensitive adhesive is an ultraviolet curable pressure-sensitive adhesive.   The label according to claim 1 or 2, wherein the adhesive is applied in an area smaller by 0 to 0.5% than the size of the label portion.   The label according to claim 1, wherein the peelable film is formed in an area slightly larger than the application area of the adhesive only in a part corresponding to the adhesive application part of the substrate.   The label according to any one of claims 1 to 4, wherein the peelable film is formed of a peelable ink.   The label according to any one of claims 1 to 5, wherein the release paper is made of the same material as the substrate.   Apply pressure-sensitive adhesive to the label-corresponding part on the back side of the substrate with the label part printed on the front surface in the same area as the label part or smaller than the label part, and cure the pressure-sensitive adhesive. Forming a pressure-sensitive adhesive, bonding the base material and release paper together, and then cutting out the base material without cutting the release paper with a blade mold to obtain a label. Label manufacturing method.   The method for producing a label according to claim 7, wherein a peelable film is formed in an area slightly larger than an application area of the adhesive on a part corresponding to the adhesive application part of the base of the release paper.

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