JP7032691B2 - Fixing sheet - Google Patents

Description

The present invention relates to a fixing sheet for fixing an object to be packaged on a support member.

Products purchased from mail orders, online shops, etc. are delivered in cardboard boxes. At this time, a cushioning material such as rolled paper, styrofoam, or a cushioning material in which air is sealed in a film is inserted so that the internal products do not move. In many cases, there are more cushioning materials than products, and the recipient suffers from a large amount of waste. As a method that does not use cushioning material, the object to be packaged is wrapped around the mount with a stretch film and fixed. In this case as well, it is necessary to separate the mount and the film, and it is difficult to release the film that has been wound in multiple layers. Products may be inserted into bubble wrap bags, but without matching cardboard boxes and envelopes, they will move inside during transportation, requiring more fixing material.

For example, a packaging sheet in which one sheet is folded back and a slit is provided on the folded surface and the sheet is stretched by the slit is also proposed (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2016-20232

However, even in the packaging sheet described in Patent Document 1, since it is necessary to cover it with a shrink film, the amount of waste and the separate collection are eventually troubled. Further, in order to heat-shrink the shrink film, a device having a heating zone is required, and there is a problem that it takes time and effort for packing.
The present invention is to provide a sheet that can be easily packed, is resistant to impact during transportation, and is easily disposed of.

The present invention is a fixing sheet for fixing an object to be packaged on a support member.
The fixing sheet is a sheet-like base material and has a sheet-like base material.
The sheet-like substrate has a plurality of rows of slits in a predetermined direction so as to be stretchable.
The fixing sheet has an adhesive layer containing an adhesive for adhering to a support member on one side of the sheet-like substrate, on the entire surface or at least in two or more regions of the sheet-like substrate. It is a characteristic fixing sheet.

According to the fixing sheet of this case, the package can be easily packed by simply installing the object to be packaged on the support member and fixing it with the fixing sheet, which is strong against impact during transportation and is discarded. It is possible to provide easy packaging.

Explanatory drawing of an example of a state in which a packaged object is fixed to a mount by a fixing sheet. Explanatory drawing of another example in which the packaged object is fixed to the mount by the fixing sheet. It is an enlarged plan view of the main part explaining the shape of a slit. It is an enlarged plan view of the main part explaining the shape of another slit. It is a vertical sectional view which shows the slit part in the extended state. FIG. 5 is a cross-sectional view showing a cross section taken along the line AA of FIG. It is explanatory drawing explaining the evaluation of the fixing sheet. It is a top view explaining an example of a fixing sheet. It is sectional drawing which shows the BB cross section of FIG. It is sectional drawing which shows another example of the BB cross section of FIG. It is a top view explaining another example of a fixing sheet. It is sectional drawing which shows the CC cross section of FIG. FIG. 5 is a cross-sectional view showing another example of the CC cross section of FIG. It is a perspective view explaining the tape-shaped fixing sheet. It is a photograph explaining the use example of the fixing sheet of the structure of FIG. 8 and FIG. 11 is a photograph illustrating an example of use of the fixing sheet having the configurations shown in FIGS. 11 and 12. 11 is a photograph illustrating another use example of the fixing sheet having the configurations of FIGS. 11 and 12. It is a photograph explaining the other side of a support member in the use example of FIG. 11 is a photograph illustrating another use example of the fixing sheet having the configurations of FIGS. 11 and 12. 11 is a photograph illustrating another use example of the fixing sheet having the configurations of FIGS. 11 and 12.

[Fixing sheet]
The fixing sheet of the present invention will be described with reference to the drawings.
As shown in FIG. 1 or 2, the fixing sheet 103 has a sheet-like base material 101 and an adhesive layer 102. At the time of use, the packaged object 105 is placed on the support member 104, the packaged object is covered with the fixing sheet 103, and the adhesive layer of the fixing sheet and the supporting member are adhered to each other. As shown in FIGS. 3 and 4, for example, the sheet-shaped substrate has a plurality of rows of slits in a predetermined direction so as to be expandable. When fixing with a fixing sheet, the sheet-like base material is stretched to cover the object to be packaged. When the sheet-like substrate is stretched, the buffer cell 40 as shown in FIGS. 5 and 6 is formed. The cushioning cell consists of walls 41, 42, 43, 44, 45, 46. The pressure-sensitive adhesive layer may be provided on the entire surface as shown in FIG. 1, or may be provided in at least two regions of the sheet-like substrate as shown in FIG. The fixing sheet of the present invention achieves both fixing to a support member and cushioning of external pressure by the synergistic effect of the cushioning cell and the pressure-sensitive adhesive layer.

[Support member, packaged object]
The support member 104 is not particularly limited as long as it is a strong base material. Examples include papers, plastics, plates, woven fabrics, non-woven fabrics, and metals. Among them, papers and plastics are preferable because they are lightweight and have strength, and papers are particularly preferable. The papers referred to here include Western paper, paperboard, corrugated cardboard, and their moldings, laminates, and the like. In particular, if the support member and the sheet-like base material of the fixing sheet are of the same type, it is convenient to dispose of them. It is preferable because it can be recovered as. Preferred papers as the support member include sheet-like materials such as paperboards and corrugated cardboard sheets, as well as one side of a paper box or corrugated cardboard box, the inside of an envelope, the surface of a paper tube, and the like. Hereinafter, the support members for these papers are collectively referred to as a mount.
The packaged object 105 is, for example, an article to be mailed or delivered to home.

[Sheet-like base material]
The sheet-shaped base material 103 is not particularly limited. When the support member is paper (mounting paper), it is preferable that the sheet-shaped member is also paper (including paperboard and corrugated cardboard). Examples of papers include kraft paper, kurupack paper, high-quality paper, medium-quality paper, old newspaper, art paper, coated paper, cardboard, white paperboard, cardboard, and resin laminated paper. Of these, kraft paper, kurpack paper, and microflute (a type of corrugated cardboard with a thin thickness) are preferable because they are excellent in strength and extensibility. In particular, kraft paper and kurupack paper are preferable. In addition, paper containing a water resistant agent or a water repellent agent is preferable because it can maintain its strength even when unintended moisture adheres to it. Is a preferred sheet-like substrate.

〔slit〕
The slit provided in the sheet-shaped base material means a cut penetrating from the front surface to the back surface of the sheet-shaped base material. This cut may be linear and the width of each portion may be different (for example, the width of the central portion is larger than that of both ends). The slit may be formed so as to be able to penetrate from the front surface to the back surface when the sheet-shaped base material is stretched, and may not necessarily penetrate from the front surface to the back surface in the state before stretching.

The slits may be arranged in a plurality of rows so that the sheet-like base material can be extended, but it is preferable to arrange the slits regularly as shown in FIG. 3 because stable elongation is realized, and particularly, the slits are arranged in a staggered pattern. Is preferable. The slit may be provided in a portion that covers the packaged object, but a configuration provided on the entire sheet-like base material is preferable because an operation such as alignment is not required at the time of fixing. It is preferable that the slit is not provided around the fixing sheet because the strength of the sheet can be prevented from being lowered.

The distance between the slits in the plurality of rows is not particularly limited, but is 1 mm or more and 20 mm or less, preferably 1.5 mm or more and 10 mm or less, and more preferably 2 mm or more and 5 mm or less. By setting it to the lower limit or higher, a three-dimensional buffer cell formed when stretched can be formed and impact resistance can be obtained. It is possible to improve the followability to an object. The distance between the cut portion of the slit and the non-cut portion needs to be balanced with the distance between the rows, but when the length of the cut portion is longer than the length of the non-cut portion, stable extension can be performed.

The end of the slit is preferably bent. For example, if one or both of the ends of the slits are bent in an L-shape, a J-shape, a Y-shape, a T-shape, or the like, the rise of the sheet when stretched is stable, so that it has a cushioning property against external pressure. Excellent for.

Further, when at least one end of the slit is formed into a hook shape having a notch having a length of one-third or less of the interval of the slit in a direction in which both ends intersect with the slit, the rise at the time of extension is stable. It is preferable because it does. In particular, the shape of a slit such as a hook bracket-shaped “[” cut in the same direction at both ends of the slit as shown in FIG. 4 is particularly preferable. It should be noted that a cut having a length exceeding one-third of the slit spacing is taken depending on the type of sheet-like base material, but breakage is likely to occur during elongation or fixing.

Preferred slits will be further described with reference to FIG. The unstretched sheet-like base material 20 is provided with a plurality of slits 3 in a staggered manner.
The main portion 3a is cut in the slit 3 along the X direction (predetermined direction). Here, the main portion 3a extending linearly is illustrated.

The main portions 3a are provided intermittently side by side along the X direction. That is, a non-cut portion 4 that is not cut is provided between the main portions 3a adjacent to each other in the X direction.
The X-direction dimension of the main portion 3a is set to be larger than the X-direction dimension of the non-cut portion 4. That is, if the X-direction dimension of the main portion 3a is "L ₁ " and the X-direction dimension of the non-cut portion 4 is "L ₂ ", the inequality 1 "L ₁ > L ₂ " is satisfied.

Here, the arrangement of one row in which the main portion 3a and the non-cut portion 4 are alternately arranged along the X direction is defined as the _first pattern P1. Further, the main portion 3a and the non-cut portion 4 arranged so as to be offset by half a pitch from the main portion 3a and the non-cut portion 4 of the first pattern P ₁ are provided alternately along the X direction. The arrangement is the second pattern P ₂ . These first pattern P ₁ and second pattern P ₂ are provided alternately side by side along the Y direction.

More specifically, the X-direction center C _a of the main portion 3a in the first pattern P ₁ and the X-direction center C _b of the non-cut portion 4 in the second pattern P ₂ are arranged side by side along the suspension direction. Similarly, the X-direction center C _b of the non-cut portion 4 in the first pattern P ₁ and the X-direction center C _a of the main portion 3a in the second pattern P ₂ are arranged side by side along the suspension direction.

By the way, when the slit 3 is composed of only the main portion 3a, the opening direction of the eyes cannot be adjusted when the slit 3 is extended. There is a notch. By providing the auxiliary portion 3b, the opening direction of the eyes can be adjusted during extension.

The auxiliary portion 3b is cut so as to extend in an L shape from the end portion of the main portion 3a in the Y direction orthogonal to (intersect) the X direction. Specifically, the first auxiliary portion 31b extends from the X ₁ direction end portion (one end portion) of the main portion 3a toward the Y ₂ direction, and the X ₂ direction end portion (the other end portion) of the main portion 3a. ) The second auxiliary portion 32b extends in the Y ₂ direction. That is, the notch portion 3 has a hook bracket “[” with the open side facing in the Y ₂ direction.

Further, the Y-direction dimension (cutting dimension) of the auxiliary portions 31b and 32b is set smaller than the Y-direction dimension in which the patterns P1 and P2 _are separated from _each other.

The slit can be manufactured by cutting the uncut sheet material while rotating it by a rotary die cutter provided with a blade portion (cutter) having a shape matching the cut shape on the outer periphery. Alternatively, a slit can be formed by cutting the uncut sheet material while pressing it with a flat plate die cutter provided with a blade portion having a corresponding shape.

By forming such a slit, the sheet-like base material can be stretched. When the sheet-shaped base material of FIG. 4 is stretched, it becomes as shown in FIGS. 5 and 6.
As shown in FIGS. 5 and 6, the stretched sheet-like base material 20 is stretched in the Y direction as compared with the non-stretched sheet-like base material 20. In the sheet-shaped base material 20 at this time, the single portions 31 to 36 rise in the thickness direction of the sheet-shaped base material 20 in the unstretched state described above, and the eyes corresponding to the slit 3 are opened. Then, the three-dimensional buffer cell 40 is formed by the raised pieces 31 to 36. In other words, one buffer cell 40 appears when the pieces 31 to 36 arranged around the slit 3 stand up.

[Adhesive layer]
A pressure-sensitive adhesive layer containing a pressure-sensitive adhesive for adhering to a mount is provided on one side of a sheet-like base material. The pressure-sensitive adhesive layer may be provided on the entire surface of the sheet-like base material, or may be provided partially. When partially provided, it is necessary to provide the pressure-sensitive adhesive layer at least in two or more regions of the sheet-like substrate. When the sheet-like base material is quadrangular, the adhesive layer may be provided on the four sides thereof, or it may be provided on the two opposite sides.

As the pressure-sensitive adhesive, both a pressure-sensitive adhesive and a heat-sensitive adhesive can be used. The former shows adhesiveness at room temperature and can be attached by crimping, while the latter shows adhesiveness by heating and can be attached by heat crimping.

As pressure-sensitive adhesives, various adhesives such as natural rubber adhesives, synthetic rubber adhesives, acrylic adhesives, urethane adhesives, and silicone adhesives used in various adhesive labels and adhesive tapes are used. Can be used.

[Experimental example]
"Creation of sheet-like base material"
A4 size kraft paper (basis weight 65 g / m ² ) with slits shown in FIG. 3 formed on the entire surface is used.

"Preparation of adhesives 1 to 4"
Four types of acrylic pressure-sensitive adhesives were prepared: adhesive strength 3N / m (adhesive 1), 80N / m (adhesive 2), 150N / m (adhesive 3), and 230N / m (adhesive 4). The adhesive strength was measured by using a sheet provided with an adhesive layer so that the dry mass was 20 g / m ² on one side of the kraft paper, and using the adhesive strength of the stainless steel plate under the following conditions.

(Stainless steel plate adhesive strength)
A 25 mm × 100 mm test piece is cut out from the sheet, a stainless steel plate (SUS304 steel plate) polished with No. 360 water-resistant abrasive paper is attached to the adhesive layer surface, and a 2 kgf crimping roller is reciprocated once to form the sheet and the stainless steel plate. Was crimped. After 30 minutes have passed since the crimping, the adhesive strength was increased at a tensile speed of 300 mm / min based on the 180 degree peeling method of JIS Z0237-2000 using a Tensilon tensile tester (RTC-1210 manufactured by Orientec Co., Ltd.). It was measured.

Experimental Example 1
The pressure-sensitive adhesive 1 was applied to the surface of the release agent layer of a commercially available release sheet having a release agent layer at a dry weight of 20 g / m ² . Next, the sheet-like base material and the release sheet were laminated via the adhesive 1, and the release sheet was peeled off to obtain a fixing sheet.
Corrugated cardboard was used as the mount, and a staple replacement core box (mass: about 30 g) was used as the object to be packaged, and the staples were fixed as shown in FIG. 7. Although the package was fixed, it was judged to be difficult for larger packages.

Experimental Example 2
The pressure-sensitive adhesive 2 was applied to the surface of the release agent layer of a commercially available release sheet having a release agent layer at a dry weight of 20 g / m ² . Next, the sheet-like base material and the release sheet were laminated via the adhesive 2, and the release sheet was peeled off to obtain a fixing sheet.
Corrugated cardboard was used as the mount, a stapler refill box (mass: about 30 g) was used as the object to be packaged, and a fixing sheet was used for fixing as shown in FIG. 7. It was judged that the package was sufficiently fixed and could withstand larger packages.

Experimental Example 3
The pressure-sensitive adhesive 3 was applied to the surface of the release agent layer of a commercially available release sheet having a release agent layer at a dry weight of 20 g / m ² . Next, the sheet-like base material and the release sheet were laminated via the adhesive 3, and the release sheet was peeled off to obtain a fixing sheet.
Corrugated cardboard was used as the mount, a stapler refill box (mass: about 30 g) was used as the object to be packaged, and a fixing sheet was used for fixing as shown in FIG. 7. It was judged that the package was sufficiently fixed and could withstand larger packages.

Experimental Example 4
The pressure-sensitive adhesive 4 was applied to the surface of the release agent layer of a commercially available release sheet having a release agent layer at a dry weight of 10 g / m ² . Next, the sheet-like base material and the release sheet were laminated via the adhesive 4, and the release sheet was peeled off to obtain a fixing sheet.
Corrugated cardboard was used as the mount, a stapler refill box (mass: about 30 g) was used as the object to be packaged, and a fixing sheet was used for fixing as shown in FIG. 7. It was judged that the package was sufficiently fixed and could withstand larger packages. However, when it was taken out, a part of the fixing sheet on the surface of the package adhered.

[Embodiment]
Although some embodiments are disclosed below, the present invention is not limited to this embodiment.

"Embodiment 1"
The pressure-sensitive adhesive layer conforms to JIS Z-0237 (2000), and is configured to use a pressure-sensitive adhesive having a pressure-sensitive adhesive strength against stainless steel plate measured under the condition of 23 ° C. of 180 N / m or less. Since the adhesive strength is 180 N / m or less, it can be fixed not only by the sheet-like base material but also by the adhesive action when it is taken out, and when it is taken out, the adhesive is peeled off from the packaged object, so that it can be easily peeled off. can do. When the adhesive strength is 160 N / m or less, more preferably 140 N / m or less, peeling can be performed more stably. Although the lower limit of the adhesive strength is not limited, it is 2 N / m or more, preferably 10 N / m or more, and more preferably 20 N / m or more in order to surely fix it to the mount.

In this embodiment, the adhesive having the above adhesive strength may be applied to the entire surface of one side of the sheet-like substrate (for example, FIGS. 8 and 9). The entire surface may be fixed by the adhesive layer acting on both the mount and the object to be packaged. For example, as shown in FIG. 10, a configuration in which a stronger adhesive region 52a is provided on two sides or the periphery of the sheet. Does not interfere. Alternatively, a region for turning over (non-adhesive layer portion) when the fixing tape is peeled off may be provided at a corner portion of the sheet-like base material. Alternatively, it is also possible to adhere to the mount and the object to be packaged by the above-mentioned specific adhesive by providing a partial adhesive layer such as a stripe shape or a polka dot shape on the entire one side of the sheet-like base material. When a partial adhesive layer is provided, the sheet-like substrate is loaded at the boundary between the portion with the adhesive and the portion without the adhesive due to vibration during transportation, so a stronger sheet-like substrate is used. Is preferable.

"Embodiment 2"
The pressure-sensitive adhesive layer conforms to JIS Z-0237 (2000), and is configured to use a pressure-sensitive adhesive having a pressure-sensitive adhesive strength against stainless steel plate measured under the condition of 23 ° C. of 70 N / m or more. Since the adhesive strength is 70 N / m or more, the adhesiveness between the mount and the fixing sheet can be strongly performed. When it is 100 N / m or more, it can be fixed more firmly, which is preferable. Further, it is more preferable to set it to 120 N / m or more. Although the upper limit of the adhesive strength is not limited, it is 300 N / m or less, preferably 280 N / m or less, and more preferably 250 N / m or less. By setting it below the upper limit, it is possible to prevent the fixing sheet from being insufficiently stretched, or the fixing sheet touching and adhering to other unintended parts in the fixing process, and the fixing sheet is torn.
In this case, since the adhesive strength is set high, if the adhesive layer comes into contact with the packaged object, it will be bonded, and there is a possibility that the fixing sheet or the adhesive will adhere when the packaged object is taken out. Therefore, it is preferable to cover the adhesive layer at the portion that comes into contact with the packaged object with a protective sheet, do not contact the adhesive layer with the packaged object, or provide the adhesive layer at two or more places on the sheet-like base material. .. For example, it can be provided around the sheet-like base material or on two opposite sides (FIGS. 11 and 12).

In this embodiment, the adhesive layer having the above-mentioned adhesive strength is partially provided on the sheet-like base material, but a slight adhesive or an anti-slip agent having a low adhesive strength is provided on the other portion in order to suppress slipping of the packaged object. The friction layer 54 such as the above may be applied (FIG. 13). The antislip agent may be any substance that enhances the frictional force, such as microcapsules or a resin layer.

"Embodiment 3",
The pressure-sensitive adhesive is a fixing sheet that is a heat-sensitive adhesive. Since the heat-sensitive adhesive does not show stickiness at room temperature and develops stickiness by heating, after installing the packaged object on the mount, the fixing tape is stretched to cover the packaged object, and the surrounding area is covered with the mount. It can be joined by heating. Heat seal adhesives, delayed tack adhesives, etc. can be used.

In this embodiment, the adhesive may be provided on the entire surface of the sheet-like substrate (FIGS. 8 and 9), or may be provided around the sheet-like substrate or on two opposite sides (FIGS. 11 and 12). )good. Further, a friction layer such as a slightly adhesive or an anti-slip agent having a low adhesive strength may be applied to the portion in contact with the packaged object in order to prevent the packaged object from slipping.

[Protective sheet]
The pressure-sensitive adhesive layer contained in the fixing sheet of the present invention can be protected by a protective sheet such as a release paper or a release sheet. When the fixing sheet is stored, the protective sheet adheres to one side (the side having the adhesive layer) and the other side (the inner surface of the adhesive layer) of the fixing sheet when they are stacked or rolled up. Therefore, it is suitable for preventing troubles such as tearing of the fixing sheet due to its adhesion when used. In addition, in the configuration using the protective sheet, when the shape of the fixing sheet is a special configuration (arbitrary shape such as polygon, star, circle, etc. other than quadrangle), the shape of the slit is arcuate. In some cases, it is preferable to provide a sheet-like base material and a protective sheet in a laminated state by a method such as die cutting.

[Release layer]
A release agent layer can be provided on the other surface of the surface base material of the fixing sheet of the present invention. Examples of the release agent include silicone resin, fluororesin, and the like, and examples thereof include substances used in the release sheet. This configuration is also suitable for preventing troubles due to adhesion during storage. Further, the configuration in which the release layer is provided does not use a protective sheet, so that waste is not generated during the fixing operation, which is preferable.

[Reinforcing layer]
A reinforcing layer can be provided on the other surface of the surface base material of the fixing sheet of the present invention. Examples of the reinforcing layer include a laminated layer of a resin such as polyethylene and polypropylene, and a resin coated layer such as polyvinyl alcohol and polyethylene resin. Since the reinforcing layer can increase the strength of the sheet-shaped base material, particularly the Z-axis strength, it is suitable for preventing the sheet-shaped base material from breaking even if adhesion occurs during storage. Further, in the configuration in which the reinforcing layer is provided, the tensile strength of the sheet-like base material is also increased, so that the shock absorbing property is excellent.

[Shape of fixing sheet]
The fixing sheet of the present invention can be used in the state of a single cut sheet (single leaf sheet). For example, it can be configured in any shape, but it is preferably configured in a quadrangular shape in consideration of productivity.
Further, from the viewpoint of workability, the fixing sheet is preferably in the form of a tape that is continuously wound up, or in the form of a continuous quadrangle and folded in a Z shape. However, when folded in a Z shape, it is preferable to use a protective sheet because the adhesive layers are laminated so as to face each other.
It is preferable to provide a slit in the vertical direction of the continuous flow of the sheet because the fixing sheet can be extended by the tension when the sheet is unwound, which is excellent in operation.
If a slit is provided in the flow direction of the continuous sheets, it is possible to prevent the sheet-like base material from breaking due to the tension during manufacturing, which is preferable because it is excellent in productivity (FIG. 14).

[Manufacturing example]
The fixing sheet of the present invention can be either a method of providing a slit on the sheet-shaped substrate and then providing an adhesive layer, or a method of providing a pressure-sensitive adhesive layer on the sheet-shaped substrate and then providing a slit. Can be adopted. Further, the pressure-sensitive adhesive layer can be formed into a sheet by directly forming the pressure-sensitive adhesive layer on the sheet-like base material and then laminating it with the protective sheet, or by forming the pressure-sensitive adhesive layer on the protective sheet and laminating it on the sheet-like base material. It may be transferred to the substrate.

〔Example of use〕
The fixing sheet of the present invention can be fixed to a mount as shown in FIGS. 15 to 20, and a cushioning cell formed by a slit protects the impact from external pressure.
FIG. 15 is a photograph showing a state of being fixed by using a fixing sheet (configuration of FIGS. 8 and 9) provided with an adhesive layer on the entire surface.
FIG. 16 is a photograph showing a state of being fixed by a fixing sheet (configurations of FIGS. 11 and 12) in which adhesive layer regions are provided at two positions at both ends.
17 and 18 are photographs showing a state in which a fixing sheet (configuration of FIGS. 11 and 12) having adhesive layer regions provided at both ends is used and fixed to the back surface of the mount with an adhesive.
FIG. 19 is a photograph showing a state in which two fixing sheets (the configurations of FIGS. 11 and 12) having adhesive layer regions provided at both ends are laminated and fixed in the same direction.
FIG. 20 is a photograph showing a state in which two fixing sheets (the configurations of FIGS. 11 and 12) having adhesive layer regions provided at both ends are laminated and fixed in orthogonal directions.
The fixed object with the packaged object fixed to the mount can be transported and mailed while being held inside a box, envelope, or the like. After receiving it, the packaged item can be taken out by breaking the slit portion or the like. After taking it out, the used paper can be collected as it is.

As described above, the fixing sheet of the present invention can achieve both fixing to the support member and cushioning of external pressure by the synergistic effect of the cushioning cell formed by the slit and the pressure-sensitive adhesive layer. It can be used when mailing.

100 Fixed object to be packaged 101 Sheet-like base material 102 Adhesive 103 Fixing sheet 104 Support member (mounting paper)
105 Packaged object 3 Slit 3a, 3a'Slit main part 3b Slit auxiliary part 31b Slit first auxiliary part 32b Slit second auxiliary part 4 Non-cut part 20 Sheet-like base material (fixing sheet)
31, 32, 33, 34, 35, 36 One part 40 Buffer cell 41, 42, 43, 44, 45, 46 Wall part 50 Fixing sheet 51 Sheet-like base material 52 Adhesive layer 53 Slit 54 Friction part 60 For fixing Sheet

Claims (11)

A fixing sheet that fixes the object to be packaged on a support member (except when the support member has multiple rows of slits in a predetermined direction so that the sheet-like base material can be stretched). There,
The fixing sheet is a sheet-like base material and has a sheet-like base material.
The sheet-like substrate has a plurality of rows of slits in a predetermined direction so as to be stretchable.
The plurality of rows of slits are staggered.
The row spacing of the plurality of rows of slits is 1 mm or more and 10 mm or less.
Both ends of the slit are hook-shaped with notches less than one-third the length of the row spacing of the slits in the same direction orthogonal to the slits.
The fixing sheet has an adhesive layer containing an adhesive for adhering to a support member on one side of the sheet-like substrate, on the entire surface or in two or more regions of the sheet-like substrate.
A fixing sheet characterized in that the sheet-like base material is a paper base material. The fixing sheet according to claim 1 , wherein the sheet-like base material is a paper base material selected from kraft paper and kurupack paper. The fixing sheet according to claim 1 or 2 , wherein the pressure-sensitive adhesive is a pressure-sensitive adhesive. The pressure-sensitive adhesive is a pressure-sensitive adhesive having an adhesive strength against stainless steel plate measured under the condition of 23 ° C. of 180 N / m or less in accordance with JIS Z-0237 (2000), and the pressure-sensitive adhesive layer. Is the fixing sheet according to any one of claims 1 to 3 , which is provided on the entire surface of one side of the sheet-shaped base material. The pressure-sensitive adhesive is a pressure-sensitive adhesive having an adhesive strength against stainless steel plate of 70 N / m or more measured under the condition of 23 ° C. in accordance with JIS Z-0237 (2000), and the pressure-sensitive adhesive layer. Is the fixing sheet according to any one of claims 1 to 3 , which is provided in two or more areas on one side of the sheet-shaped base material. The fixing sheet according to claim 1 or 2 , wherein the pressure-sensitive adhesive is a heat-sensitive adhesive. The fixing sheet according to any one of claims 1 to 6 , wherein the pressure-sensitive adhesive layer is protected by a protective sheet. The fixing sheet according to any one of claims 1 to 7 , which has a release agent layer on the other surface of the sheet-like base material. The fixing sheet according to any one of claims 1 to 8 , which has a reinforcing layer on the other surface of the sheet-like base material. The fixing sheet according to any one of claims 1 to 9 , wherein the fixing sheet is a continuous sheet and is in the form of a wound tape. The fixing sheet according to any one of claims 1 to 9 , wherein the fixing sheet is a cut sheet.

Images