JP2005297967A - Sealing paper, and envelopes with lid suitable for repeatable use - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sealing paper which is inexpensive and excellent in repeatable opening/closing performance, and envelopes with a lid excellent in repeatable usability. <P>SOLUTION: At least an adhesive layer and a peelable paper are successively provided on one side of a base material, and a sealing paper is used for envelopes with a lid. A face on the adhesive layer is peelable-treated between the adhesive layer and the peelable paper of any one of an affixed portion to the envelope lid part and an affixed portion to an envelope barrel part, and an adhesive sheet having the adhesive layer is interposed on a face on the opposite side. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sealing paper, and in particular, relates to a sealing paper suitable for repeated use and envelopes suitable for repeated use obtained by sticking the same.

  Usually envelopes that are mailed are discarded or disposed of once used, and are not used repeatedly. When used for the purpose of storing documents or the like, one with a fixing bracket for temporarily fixing the lid or one fixed with a string is used. However, these envelopes are expensive and have drawbacks in terms of ease of use. In particular, those using metal fittings have the disadvantage that the metal part becomes thick and other metal envelopes are damaged by this metal fitting.

  As a method for improving such a defect, the base of the sealing sheet is fixed to the opening one end face of the bags so as not to be peeled off, and the central part of the sealing sheet is attached to the other end face of the opening so as to be peelable. There is provided a binding method for bags, and a binding tool used therefor, in which a central portion of the sealing sheet is peeled off by pulling a knob provided on the free end portion side of the sealing sheet, and the opening of the bags is reopened. It has been developed (see, for example, Patent Document 1). However, in this case, the adhesive or pressure-sensitive adhesive of the part that is fixed so as not to be peeled off is different from the adhesive or pressure-sensitive adhesive of the part that is stuck peelable, so that these must be applied separately on the same substrate. Therefore, the manufacturing process becomes complicated. In addition, paper fibers gradually transfer from the envelope to the adhesive part used for repeated opening and closing, the appearance of the envelope deteriorates and the adhesive strength of the adhesive part of the sealing sheet deteriorates rapidly, so the number of times it can be used repeatedly is sufficient There was a drawback of not.

JP-A-6-155993

Therefore, as a result of intensive studies to improve the above-mentioned drawbacks, the present inventors use only one type of pressure-sensitive adhesive as the pressure-sensitive adhesive, and if necessary, partly release from the pressure-sensitive adhesive. The present inventors have found that it is possible to obtain a sealing paper which is inexpensive and has excellent repeated opening / closing performance by interposing a pressure-sensitive adhesive sheet having a pressure-sensitive adhesive layer on the treated surface and the other surface. In addition, the present inventors use only one type of pressure-sensitive adhesive as a pressure-sensitive adhesive, and provide an inexpensive and repeatable opening and closing performance by interposing a pressure-sensitive adhesive sheet having a non-peeling surface and a pressure-sensitive adhesive layer on the other surface. The present inventors have found that an excellent sealed paper can be obtained and have reached the present invention.
Accordingly, a first object of the present invention is to provide a sealing paper that is inexpensive and excellent in repeated opening and closing performance.
The second object of the present invention is to provide envelopes with lids that are inexpensive and excellent in repeated use.

  The above objects of the present invention are sealing papers used for envelopes with lids in which at least a first pressure-sensitive adhesive layer and a release paper are sequentially laminated on one surface of a first substrate, and the lids of the envelopes Between the first pressure-sensitive adhesive layer and the release paper of either one of the sticking part to the part or the sticking part to the body part of the envelope, the first base material and the first base material of the second base material This was achieved by a sealing paper comprising a pressure-sensitive adhesive sheet comprising a second pressure-sensitive adhesive layer provided on the surface opposite to the surface in contact with the adhesive layer.

  It is preferable that the surface in contact with the first pressure-sensitive adhesive layer in the second base material is peeled off. Moreover, it is preferable to provide a protective sheet on the surface of the first base material opposite to the one surface. Further, in the first pressure-sensitive adhesive layer, either one of the sticking part to the lid part of the envelope or the sticking part to the trunk part of the envelope and the sticking part to the pressure-sensitive adhesive sheet are separated. It is preferable. In particular, it is preferable to provide a knob portion at the end of the sealing paper because the lid of the envelope can be easily opened and closed. In addition, when the knob portion does not have the first pressure-sensitive adhesive layer or has the first pressure-sensitive adhesive layer, it is easy to handle by eliminating the adhesiveness by further providing a non-stick treatment layer on the surface. Therefore, it is preferable. Further, when the pressure-sensitive adhesive sheet extends to a part of the knob portion, it is possible to prevent the pressure-sensitive adhesive in the first pressure-sensitive adhesive layer from protruding and directly sticking to the envelope. Furthermore, by attaching the sealing paper from which the release paper is removed in advance to the lid portion of the envelope and the trunk portion of the envelope, it is possible to provide envelopes with lids that are inexpensive and excellent in repeated use performance.

  The sealing paper of the present invention is easy to manufacture because it is not necessary to coat the adhesive of the strong adhesive part and the weak adhesive part separately, and the manufacturing cost is suppressed. Further, by using this sealing paper, the envelopes are effectively used many times, which contributes to resource saving.

First, the 1st aspect of this invention which has the base material by which the peeling process was carried out is demonstrated.
Examples of the base material used for the sealing paper of the present invention include paper such as high-quality paper and coated paper, and synthetic paper and films made of polyethylene resin, polypropylene resin, polyester resin, acetate resin and the like.
The thickness of the first and second substrates is not particularly limited, but is preferably 50 to 120 μm.

The pressure-sensitive adhesive used for the sealing paper of the present invention can be appropriately selected from known ones. Examples of the known pressure-sensitive adhesive include acrylic pressure-sensitive adhesives, rubber-based pressure-sensitive adhesives, and urethane-based pressure-sensitive adhesives.
Although the thickness in particular of an adhesive layer is not restrict | limited, It is preferable that it is 10-80 micrometers, and it is especially preferable that it is 20-50 micrometers.
A well-known thing can be used as a release paper. For example, glassine paper, tracing paper, coated paper, impregnated paper, polyethylene laminated paper, etc., polyethylene resin, polypropylene resin, polyester resin films, and silicone resin, long chain alkyl on the surface of these papers and films Examples thereof include those subjected to a release treatment with a release agent such as a resin, an alkyd resin, and a fluororesin. The thickness of the release paper is not particularly limited, but is preferably 10 to 100 μm.

  In the present invention, the above-mentioned pressure-sensitive adhesive is applied to the entire surface of one side of the first base material. However, the pressure-sensitive adhesive is not applied to at least a part of the edge as a trigger for peeling as described later. May be. The sealing paper of the present invention is stuck to any one of a lid or a body part of an envelope or the like so as not to be peeled off again. However, it is necessary to have a pressure-sensitive adhesive sheet that can be re-peeled with the pressure-sensitive adhesive layer of the sealing paper in order to use it repeatedly in the part that is attached to the lid or the body of the other envelope or the like.

  The pressure-sensitive adhesive sheet is subjected to a peeling treatment so that one surface of the second substrate can be detachably attached to the pressure-sensitive adhesive, and the other surface is the same as or similar to the pressure-sensitive adhesive, and is a lid for envelopes. Or it is a sheet | seat which has the adhesion layer which consists of an adhesive strongly adhere | attached with a trunk | drum. The second substrate of the pressure-sensitive adhesive sheet can be used by appropriately selecting from the same materials as those for the sealing paper and release paper. The release treatment may be performed in the same manner as in the case of release paper, and the same substrate as the sealing paper substrate may be used.

  Moreover, in order to make it easy to peel off the sealing paper main body of the part affixed with the adhesive sheet, it is preferable to provide a knob part.

In the present invention, in order to protect the adhesive part until actual use, release paper is provided on the entire adhesive part. One sheet of this release paper may be provided over both the adhesive part exposed on the sealing paper main body and the adhesive part of the adhesive sheet, but the release paper is divided into each sticking part of the sealing paper main body part and the adhesive sheet part. It is preferable to provide release paper because it is easy to use.
The sealing paper of the present invention repeatedly uses an envelope or the like many times by peeling or sticking the peeled surface portion of the adhesive sheet and the adhesive portion of the sealing paper body. In this way, the adhesive portion of the sealing paper and the paper or film from which the surface of the adhesive sheet has been peeled are bonded, and the release paper, the sealing paper main body, and the adhesive of the adhesive sheet are bonded.
Hereinafter, the configuration of the first aspect of the present invention will be described in more detail with reference to the drawings.

  FIG. 1 is an explanatory sectional view of a sealing paper 10 of the present invention. In the figure, reference numeral 1 is a first base material of sealing paper, 2 is a first adhesive layer, 3 is an adhesive sheet, and 4 is a release paper. The pressure-sensitive adhesive sheet 3 includes a second base material 6 having a release treatment layer 5 and a second pressure-sensitive adhesive layer 7. Reference numeral 8 denotes a knob portion. FIG. 2 is a diagram showing a usage state of the sealing paper of the present invention, an example in which the sealing paper of FIG. 1 is attached to the lid portion 21 and the body portion 22 of the envelope 20, and FIG. 3 is an explanatory side view thereof.

  In the figure, a first pressure-sensitive adhesive layer 2 is provided on one surface of a first base material 1, and a pressure-sensitive adhesive sheet 3 is provided on a part of the surface of the first pressure-sensitive adhesive layer 2. A release layer 5 is provided on the surface of the second base 6 of the adhesive sheet on the first adhesive layer side, and a second adhesive layer 7 is provided on the opposite surface. A release paper 4 is adhered to the surfaces of the first pressure-sensitive adhesive layer 2 and the second pressure-sensitive adhesive layer 7. Further, the end surface of the first base material 1 extends to form a knob portion 8. It is preferable that the back surface of the knob portion 8 is not provided with an adhesive layer, or the non-adhesive treatment layer 9 is formed on the surface of the adhesive layer by printing or the like so as not to have adhesiveness. As shown in FIG. 1, it is preferable to provide the end surface 2a of the first pressure-sensitive adhesive layer 2 on the inner side of the end surface 3a of the pressure-sensitive adhesive sheet 3 in the knob portion 8, because the sealing paper 10 can be opened and closed smoothly. .

  As shown in FIGS. 2 and 3, the sealing paper 10 of the present invention is attached to the lid 1 of the envelope 22. That is, the release paper 4 of the sealing paper 10 is peeled, and the exposed first adhesive layer 2 part is the cover part 21 of the envelope 20 and the second adhesive layer 7 of the adhesive sheet 3 is the trunk part of the envelope 20. 22 are attached respectively. In addition, you may stick the 1st adhesive layer 2 to the trunk | drum 22 of the envelope 20, and the 2nd adhesive layer 7 of the adhesive sheet 3 to the part of the cover part 21 of the envelope 20, respectively.

  FIG. 4 shows a second embodiment of the sealing paper according to the first aspect of the present invention. Here, there are many parts in common with the sealing paper of the first embodiment, and a description thereof will be omitted. In the sealing paper of the second embodiment, the boundary portion between the envelope lid and the body portion and the knob portion 8 cover the corresponding surface of the first adhesive layer 2 with printing ink or the like to form the non-adhesive treatment layer 9. This is considered non-adhesive. The non-adhesive portion of the first pressure-sensitive adhesive layer 2 may be attached to a corresponding portion of the first pressure-sensitive adhesive layer that makes thin paper or a plastic film non-adhesive. Moreover, although there is no restriction | limiting in particular about the said printing, it is preferable to print using a ultraviolet curing ink. The ultraviolet curable ink can be appropriately selected from known materials, and after printing, the ink is cured by irradiation with ultraviolet rays.

  As shown in FIG. 4, the non-adhesive boundary portion is a part of the first pressure-sensitive adhesive layer 2 straddling the trunk portion and the lid portion of the envelope. By providing the non-adhesive boundary portion 9 ′, the first adhesive layer can be prevented from being stuck across the lid 21 and the body portion 22 of the envelope 20.

  In the above-described first aspect of the present invention, one surface of the second base material of the pressure-sensitive adhesive sheet is peeled, but those not peeled are also included in the present invention. In this case, what is necessary is just to adjust the adhesive force of this adhesive suitably so that peeling with an adhesive sheet and the said adhesive may become easy.

Next, the 2nd aspect of this invention which has a protection sheet is demonstrated. In the following description, description of the same parts as those of the first aspect of the present invention will be omitted.
Examples of the base material (first base material) used for the sealing paper of the present invention include the synthetic paper and film described above. In particular, a laminate layer (for example, polyethylene terephthalate) is used as a protective sheet described later on the upper layer of the synthetic paper. A base material on which a film) is laminated is preferable.
In the 2nd aspect of this invention, the protective sheet is laminated | stacked on the surface on the opposite side to the surface which apply | coats the adhesive in a 1st base material. If it does in this way, the synthetic paper of a printing layer will not bend by repeated opening and closing, and rigidity can be given to a substrate.

  The pressure-sensitive adhesive and release paper that can be used for the sealing paper of the second aspect of the present invention are the same as those of the first aspect of the present invention.

  Also in the second aspect of the present invention, the above-mentioned pressure-sensitive adhesive is applied to the entire surface of one side of the first base material, but the pressure-sensitive adhesive is not applied to at least a part of the edge portion used as a trigger for peeling. May be. The sealing paper of the present invention is stuck to any one of a lid or a body part of an envelope or the like so as not to be peeled off again. However, it is necessary to have a pressure-sensitive adhesive sheet that can be re-peeled with the pressure-sensitive adhesive layer of the sealing paper in order to use it repeatedly in the part that is attached to the lid or the body of the other envelope or the like.

  The pressure-sensitive adhesive sheet can be releasably attached to the pressure-sensitive adhesive without performing a peeling treatment on one surface of the second base material. Moreover, it has the adhesive layer which consists of an adhesive which adhere | attaches the lid | cover or trunk | drum of envelopes the same or similar to the said adhesive on the other surface of this adhesive sheet. The base material (second base material) of the pressure-sensitive adhesive sheet can be appropriately selected from the same materials as the base material of the sealing paper and the base material of the release paper. For example, a PET (polyethylene terephthalate) film is used. It can be used suitably.

  Moreover, in order to make it easy to peel off the sealing paper main body of the part affixed with the adhesive sheet, it is preferable to provide a knob part.

Also in the second aspect of the present invention, release paper is provided on the entire adhesive portion in order to protect the adhesive portion until actual use. One sheet of this release paper may be provided over both the adhesive part exposed on the sealing paper main body and the adhesive part of the adhesive sheet, but the release paper is divided into each sticking part of the sealing paper main body part and the adhesive sheet part. It is preferable to provide release paper because it is easy to use.
The sealing paper of the present invention repeatedly uses an envelope or the like many times by peeling or sticking the peeled surface portion of the adhesive sheet and the adhesive portion of the sealing paper body. In this way, the adhesive part of the sealing paper and the paper or film on which the surface of the adhesive sheet is not peeled are bonded, and the release paper, the sealing paper main body, and the adhesive of the adhesive sheet are bonded.
Hereinafter, the structure of the 2nd aspect of this invention is further explained in full detail based on drawing.

  FIG. 5 is a cross-sectional explanatory view of the sealing paper 10B according to the second aspect of the present invention. In the drawing, reference numeral 1B denotes a first base material of sealing paper, 1C denotes a protective sheet, 2B and 2C denote first adhesive layers, 3B denotes an adhesive sheet, and 4B denotes release paper. The protective sheet 1C may be laminated on the first substrate 1B via a pressure-sensitive adhesive layer or an adhesive layer. The pressure-sensitive adhesive sheet 3B includes a second base material 6B and a second pressure-sensitive adhesive layer 7B that do not have a release treatment layer. Reference numeral 8B denotes a knob portion. In the second aspect of the present invention, the first pressure-sensitive adhesive layer is composed of two portions 2B and 2C, which are separated from each other in the region R (that is, the first pressure-sensitive adhesive layer is not applied in the region R). Is preferred. If it does in this way, it will become easy to peel from the lid | cover of sealing paper.

  In addition, the use state of this sealing paper and the example of sticking of the sealing paper to an envelope are the same as that of the case of the sealing paper of the above-mentioned 1st aspect of this invention. Accordingly, in this embodiment, the first pressure-sensitive adhesive layer 2C serves as a sticking portion for the envelope lid, and the first pressure-sensitive adhesive layer 2B serves as a sticking portion for the pressure-sensitive adhesive sheet. In the knob portion 8B, it is preferable to provide the end surface 2x of the first pressure-sensitive adhesive layer 2B on the inner side of the end surface 3x of the pressure-sensitive adhesive sheet 3B, as in the case of the first aspect of the present invention.

  The sealing paper of the second aspect of the present invention is advantageous in that the manufacturing process can be simplified as compared with the sealing paper of the first aspect, because the peeling treatment of the second base material is unnecessary. In the case of the sealing paper of the first aspect, the peel-off surface may be damaged due to repeated opening and closing of the envelope, but in the case of the sealing paper of the second aspect, there is no peeling-processing surface and durability against repeated opening and closing. Excellent in properties.

  EXAMPLES Hereinafter, although this invention is explained in full detail based on an Example, this invention is not limited by this.

  Stripping paper 4 having a width of 100 mm and a thickness of 70 μm (Glasin paper treated with a silicone release agent, manufactured by Lintec: product name 8K) and acrylic adhesive (manufactured by Lintech: product name PA-T1) The first pressure-sensitive adhesive layer 2 having a thickness of 20 μm was formed by coating and drying so that 10 mm from both ends in the width direction were uncoated portions. Next, a synthetic paper (manufactured by YUPO Corporation, trade name YUPO 80) having a width of 100 mm and a thickness of 80 μm was bonded as the base material 1 to the surface of the first pressure-sensitive adhesive layer 2.

  Next, this is slit to a width of 50 mm, the release paper 4 is peeled off, and a separately prepared pressure-sensitive adhesive sheet 3 having a width of 20 mm (a release treatment layer 5 (Tohua Dye Chemical Co., Ltd. on one surface of a 25 μm-thick polyethylene terephthalate film 6) is prepared. Manufactured: trade name UV116OP varnish), the second pressure-sensitive adhesive layer 7 (manufactured by Lintec Corporation: trade name PL thin, thickness 20 μm) on the other surface, and the surface of the release agent layer 5; The first pressure-sensitive adhesive layer 2 was attached to the first pressure-sensitive adhesive layer 2 so as to extend 2 mm from the end portion of the pressure-sensitive adhesive uncoated portion. Next, the release paper 4 is again bonded to the surfaces of the first pressure-sensitive adhesive layer 2 and the second pressure-sensitive adhesive layer 7, and then cut so as to be 40 mm in the flow direction, and the sealing paper of the present invention having a size of 40 mm × 50 mm. 10 was produced.

  The release paper 4 of the sealing paper 10 produced in Example 1 is peeled off, the first pressure-sensitive adhesive layer 2 is on the lid portion 21 of the envelope 20, and the second pressure-sensitive adhesive layer 7 of the pressure-sensitive adhesive sheet 3 is on the body portion 22 of the envelope 20. Sealing paper was stuck on the envelope so as to stick, and the envelope with sealing paper of the present invention was produced. When it was repeated that the sealing paper was peeled off from the lid and then stuck on the lid again, the lid could be opened and closed 30 times or more.

The release paper 4 of the sealing paper 10 produced in Example 1 is peeled off, and the first pressure-sensitive adhesive layer 2 is attached to the body portion 22 of the envelope 20 and the second pressure-sensitive adhesive layer 7 is attached to the lid portion 21 of the envelope 20. The sealing paper was stuck on the envelope as described above to produce the envelope with the sealing paper of the present invention.
When the sealing paper was peeled off from the lid and then stuck on the lid again, the lid could be opened and closed 30 times or more.

  Stripping paper 4 having a width of 100 mm and a thickness of 70 μm (glassine paper peeled with a silicone release agent, manufactured by Lintec: product name 8K) and an acrylic pressure-sensitive adhesive (produced by Lintec: product name MF) Application and drying were performed to form a first pressure-sensitive adhesive layer 2 having a thickness of 20 μm. Next, 80 μm thick synthetic paper (manufactured by YUPO CORPORATION: trade name YUPO 80) was bonded to the surface of the first pressure-sensitive adhesive layer 2 as the substrate 1.

  Next, this is slit to a width of 50 mm, the release paper 4 is peeled off, and a predetermined part of the first pressure-sensitive adhesive layer 2 using UV ink (product name: UV116) 9 by an offset printing machine. The UV ink was cured by irradiating ultraviolet rays to form the non-adhesive boundary portion 9 ′ and the non-adhesive treatment layer 9 of the knob portion 8. Specifically, solid printing is performed with UV ink between 10 mm from one end in the width direction as the non-adhesive treatment layer 9 of the knob portion 8, and further between 25 mm and 30 mm from one end as the non-adhesive boundary portion 9 ′. Solid print.

  Next, the adhesive sheet 3 having a width of 20 mm used in Example 1 was attached to a position 38 mm from the end of the lid portion 2 on the knob portion 8 side, and the release paper 4 was again attached to the first adhesive layer 2 and the second adhesive layer 4. After sticking on the surface of the pressure-sensitive adhesive layer 7, it was cut so as to be 40 mm in the length direction, and a sealing paper 10 of 40 mm × 50 mm of the present invention was produced.

The release paper 4 of the sealing paper 10 obtained in Example 4 is peeled off, and the first pressure-sensitive adhesive layer 2 is attached to the lid portion 21 of the envelope 20 and the second pressure-sensitive adhesive layer 7 is attached to the body portion 22 of the envelope 20. Sealing paper was stuck on the envelope to prepare an envelope with sealing paper of the present invention.
The obtained envelope was able to open and close the lid 30 times or more by holding the tab portion 8 of the sealing paper.

  100 mm wide and 70 μm thick strip-like release paper 4B (manufactured by Lintec: product name 8K), acrylic adhesive (manufactured by Lintech: product name ME) from both ends in the width direction and 10 mm from both ends. The first adhesive layers 2B and 2C having a thickness of 20 μm were formed by applying and drying so that a portion of 25 to 30 mm (region R in FIG. 5) was a non-application portion. Next, a synthetic paper (manufactured by YUPO Corporation, trade name YUPO 80) 1B having a width of 100 mm and a thickness of 80 μm was bonded as a first base material to the surface of the first pressure-sensitive adhesive layer 2B. Furthermore, a protective film 1C (polyethylene terephthalate film having a thickness of 25 μm) provided with an adhesive layer (manufactured by Lintec Co., Ltd .: trade name PL thin, thickness 20 μm) on one surface is prepared, and the adhesive is applied onto the synthetic paper 1B. The protective film 1C was laminated via the agent layer to obtain a laminate of the protective film 1C and the first base material 1B.

  Next, the laminate is slit to a width of 50 mm, the release paper 4B is peeled off, and a separately prepared pressure-sensitive adhesive sheet 3B having a width of 20 mm (second adhesive on the back surface of a 25 μm-thick polyethylene terephthalate film 6B as a second substrate). The end surface of the second base material, which is the pressure-sensitive adhesive sheet 3B, extends 2 mm from the end surface 2x of the first pressure-sensitive adhesive layer 2B of the layer 7B (manufactured by Lintec Co., Ltd .: pressure-sensitive adhesive sheet provided with the trade name PL thin, thickness 20 μm). In this way, the first adhesive layer 2B was adhered. Next, the release paper 4B is again bonded to the surfaces of the first pressure-sensitive adhesive layer 2C and the second pressure-sensitive adhesive layer 7B, and then cut so as to be 40 mm in the flow direction, and the sealing paper of 40 mm × 50 mm of the present invention. 10B was produced.

  The release paper 4 of the sealing paper 10B produced in Example 6 is peeled off, the first pressure-sensitive adhesive layer 2C is on the lid portion 21 of the envelope 20, and the second pressure-sensitive adhesive layer 7B of the pressure-sensitive adhesive sheet 3B is on the body portion 22 of the envelope 20. Sealing paper was stuck on the envelope so as to stick, and the envelope with sealing paper of the present invention was produced. When it was repeated that the sealing paper was peeled off from the lid and then stuck on the lid again, the lid could be opened and closed 30 times or more.

It is sectional explanatory drawing which shows the sealing paper of the 1st aspect of this invention which has a knob part. It is a top view which shows the use condition of the sealing paper of this invention. It is side surface explanatory drawing of the envelope which uses the sealing paper of this invention. It is sectional drawing of the other Example which provided the non-adhesion part using the printing ink in the 1st adhesive layer. It is sectional explanatory drawing which shows the sealing paper of the 2nd aspect of this invention which has a knob part.

Explanation of symbols

1, 1B, 1C Sealing paper base material (first base material)
1D protective sheet 2, 2B, 2C first adhesive layer 3, 3B adhesive sheet 4, 4B release paper 5 release treatment layer 6, 6B second base material 7, 7B second adhesive layer 8, 8B knob part 9. Non-adhesive treatment layer 9 '. Non-adhesive boundary portion 10, 10B Sealing paper 20. Envelope 21. Lid 22. Trunk

Claims (8)

  A sealing paper used for envelopes with a lid in which at least a first pressure-sensitive adhesive layer and a release paper are sequentially laminated on one surface of a first base material, Between the first pressure-sensitive adhesive layer and the release paper of any one of the sticking parts with respect to the body part, on the opposite side to the surface of the second base material and the second base material in contact with the first pressure-sensitive adhesive layer A sealing paper comprising a pressure-sensitive adhesive sheet comprising a second pressure-sensitive adhesive layer provided on the surface.   2. The sealing paper according to claim 1, wherein a surface of the second base material that contacts the first pressure-sensitive adhesive layer has been subjected to a peeling treatment.   The sealing paper according to claim 1 or 2, wherein a protective sheet is provided on a surface opposite to the one surface of the first base material.   Of the first pressure-sensitive adhesive layer, either one of the sticking part to the lid part of the envelope or the sticking part to the trunk part of the envelope and the sticking part to the pressure-sensitive adhesive sheet are separated. The sealing paper according to any one of claims 1 to 3, wherein   The sealing paper as described in any one of Claim 1 thru | or 4 in which the knob part for making it easy to peel a sealing paper main body from the said adhesive sheet in use condition is provided in the sealing paper edge part.   The sealing paper according to claim 5, wherein the knob portion does not have the first pressure-sensitive adhesive layer, or is further provided with a non-stick treatment layer on the surface of the first pressure-sensitive adhesive layer.   The sealing paper according to claim 5 or 6, wherein the pressure-sensitive adhesive sheet extends to at least a part of the knob portion. An envelope with a lid suitable for repeated use, characterized in that the sealing paper according to any one of claims 1 to 7 from which the release paper has been removed is adhered in advance to the lid portion of the envelope or the trunk portion of the envelope.