JP2017124864A - Base material for forming cap seal, and cap seal package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a base material for forming a cap seal, which can constitute a knob piece part capable of being relatively easily pinched even after heat shrinkage.SOLUTION: A base material 1 for forming a cap seal is formed of a heat-shrinkable film 2 that can be thermally shrunk in a main orientation direction. The heat-shrinkable film 2 has a body part 3 that is attached to a container 7, and a knob piece part 4 that is extended to the outside from a first end edge 3a of the body part 3. A cut line 5 extended in a direction orthogonal to the main orientation direction or a direction inclined with respect to the main orientation direction is formed in a plane of the knob piece part 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a base material used for a cap seal attached to a container with a cap such as an eye drop container.

It has been widely practiced to attach a cap seal to a container with a cap in which medicinal products such as eye drops, cosmetics, seasonings, beverages, foods and the like are stored. For example, a cap seal including the cap portion is attached to the eye drop container.
Generally, a cap seal is obtained by forming a cap seal-forming base material into a cylindrical shape so that its main stretching direction is the circumferential direction.
The base material for forming the cap seal is formed from a heat-shrinkable film that is heat-shrinkable in the lateral direction, and the heat-shrinkable film is roughly divided into a main body portion to be attached to a container, and a first edge of the main body portion. And a knob part extending outward from the outer surface (Patent Document 1). The pick piece is used as an opening point for picking with a finger when the cap seal is opened.
The cap seal is externally fitted to the container including the cap part and heated, whereby the main body part is thermally contracted in the circumferential direction (main stretching direction) and attached to the container. As it bends to the upper surface side, the knob piece rises while tilting to the upper surface side of the cap portion.

However, the conventional cap seal has a problem that after the heat shrinkage, the knob part does not rise so as to be orthogonal to the upper surface of the cap part, but rather rises with an inclination so as to float slightly from the upper surface of the cap part. There is. When the knob piece is close to the upper surface of the cap portion in this way, it must be erected with a fingertip or a nail, and it is difficult to pick the knob piece with a finger.
Furthermore, when the cap seal is heated, the knob part which is a part of the heat-shrinkable film is also thermally contracted in the circumferential direction (main stretching direction), so that the knob part is contracted unevenly as a whole, Tends to be pointed. Since the pick piece having a sharp tip as described above is relatively hard, it is difficult to stand the pick piece with a fingertip or a nail as described above, and the finger may be uncomfortable. In particular, such a problem is likely to occur when a conventional cap seal is attached to a relatively small container such as an eye drop container.

JP 2004-142818 A

  The objective of this invention is providing the base material for cap seal formation and the cap seal package which can comprise the picking piece part comparatively easy to pick even after making it heat shrink.

  The base material for cap seal formation of the present invention is a base material for cap seal formation formed from a heat-shrinkable film that is heat-shrinkable in the main stretching direction, and the heat-shrinkable film is mounted on a container. And a knob piece extending outward from the first end edge of the main body, and the direction perpendicular to the main stretching direction or the main stretching direction within the surface of the knob piece A cut line extending in a direction inclined with respect to the surface is formed.

  In such a base material for forming a cap seal, a cut line extending in the vertical direction is formed in the plane of the knob piece portion, so that the plane of the knob piece portion is divided into left and right sections. During heating, each section is thermally contracted, but by being divided into a plurality of sections, the amount of heat shrinkage is smaller than when the entire knob part is thermally contracted in the lateral direction. For this reason, the tip of the knob piece after heat shrinkage is difficult to sharpen.

In a preferable base material for forming a cap seal of the present invention, a plurality of the cut lines are formed in the surface of the knob piece.
In another preferable cap seal forming substrate of the present invention, the plurality of cut lines are arranged in a staggered manner.
In another preferable base material for forming a cap seal of the present invention, the cut line is formed in the vicinity of the first end edge or crossed on the first end edge.
In another preferable base material for forming a cap seal of the present invention, a shrinkage inhibition layer is provided on the outer surface of the knob part.

According to another aspect of the present invention, a cap seal package is provided.
The cap seal package includes any one of the cap seal forming base material and a container on which the cap seal forming base material is heat-shrink mounted with a main stretching direction as a circumferential direction. A band-like region including the first edge of the forming base material is bent on the upper surface of the container, and the knob piece extending from the first edge rises upward from the upper surface of the container. Yes.

The base material for forming a cap seal of the present invention rises upward from the upper surface of the container after being thermally contracted, and can constitute a picking piece portion that is relatively easy to pick.
The base material for forming a cap seal of the present invention can also constitute a pick piece portion that does not become relatively hard even after heat shrinkage, and it is difficult for the user to feel uncomfortable when picked with a finger.

The top view which looked at the base material for cap seal formation concerning a 1st embodiment from the outer surface side. The top view which looked at the base material for cap seal formation from the inner surface side. The partially expanded plan view which expanded the periphery of the knob part. IV-IV sectional view taken on the line of FIG. The front view which shows the process in which the base material for cap seal formation is mounted | worn to a container. The front view which shows the attachment process. The front view of a cap seal packaging body. The right view of the package. The top view of the package body. The partially expanded plan view which expanded the periphery of the pick piece part of the base material for cap seal formation of the 1st example of 2nd Embodiment. The partially expanded plan view which expanded the periphery of the pick piece part of the base material for cap seal formation of the 2nd example of 2nd Embodiment. The top view which looked at the base material for cap seal formation concerning a 3rd embodiment from the outer surface side. The perspective view of the base material for cap seal formation concerning a 4th embodiment.

Hereinafter, the present invention will be specifically described with reference to the drawings.
In the present specification, “upper” and “lower” are based on a state in which a cap seal is attached to a container and the container is self-supporting. In addition, the “lateral direction” of the heat-shrinkable film and the cap seal forming substrate is the main stretching direction of the heat-shrinkable film, and is the same as the circumferential direction of the container when the cap seal forming substrate is attached to the container. I'm doing it. The “longitudinal direction” of the heat-shrinkable film and the base material for forming the cap seal is a direction orthogonal to the transverse direction in the plane of the base material for forming the cap seal (perpendicular to the main stretching direction of the heat-shrinkable film). Direction). The “outer surface” of the heat-shrinkable film and the base material for forming the cap seal refers to the surface that does not contact the container when the base material for forming the cap seal is attached to the container, and the “inner surface” is the opposite side. The surface (the surface on the side in contact with the container).
It should be noted that the dimensions, scales and shapes of the parts and members shown in the drawings may be different from the actual ones.

[First Embodiment]
<Base material for cap seal formation>
The cap seal forming substrate of the present invention may be formed in a cylindrical shape before being attached to the container, or may be formed in a cylindrical shape at the same time as being attached to the container.
The base material for cap seal formation of this embodiment is a form formed in a cylindrical shape simultaneously with mounting | wearing with a container. The cap seal forming base material that is formed into a cylindrical shape at the same time as being attached to the container includes, for example, one side end of the cap seal forming base material attached to the outer peripheral surface of the container, and the cap seal forming base material. After the material is wound around the periphery of the container, the inner surface of the other side end portion is bonded to the outer surface of the one side end portion to form a cylinder. The other side end portion is a side end portion opposite to the one side end portion, and the one side end portion and the other side end portion face each other in the lateral direction.

1 and 2 show a cap seal-forming base material according to the first embodiment of the present invention, and FIG. 3 is an enlarged plan view of the periphery of a knob piece portion of the cap seal-forming base material. 4 is a cross-sectional view of the knob piece cut in the horizontal direction. The cap seal-forming base material 1 in these illustrated examples is before being attached to the container and before being thermally contracted.
1 and 2, the cap seal-forming base material 1 of the present invention is formed from a heat-shrinkable film 2 that is heat-shrinkable in the main stretching direction. In each figure, the heat-shrinkable film is represented with the main stretching direction aligned with the horizontal direction of the paper.

When the heat-shrinkable film 2 constituting the base material 1 for forming the cap seal is divided, the heat-shrinkable film 2 extends outwardly from the main body 3 attached to the container and the first edge 3a of the main body 3. And a picked piece portion 4. A cut line 5 extending in the vertical direction is formed in the plane of the knob piece 4.
If necessary, the heat-shrinkable film 2 may be laminated with any appropriate layer such as a print layer or a shrinkage inhibition layer 61. Further, if necessary, perforation lines 62 and 63 for opening may be formed in the surface of the main body 3.

Specifically, the planar view shape of the heat-shrinkable film 2 (however, the planar view shape of the main body portion 3 excluding the knob piece 4) is generally a substantially rectangular shape or a substantially square shape. The main body 3 in the illustrated example has a substantially rectangular shape in plan view. In the present invention, the “substantially” shape means a shape allowed in the technical field to which the present invention belongs. The “substantially” of the substantially rectangular shape and the substantially square shape is, for example, a shape in which corners are chamfered as in the illustrated example, or a shape or side in which a part of the side is slightly inflated or depressed, although not particularly illustrated. Includes a slightly curved shape.
The heat shrinkable film 2 has heat shrinkability in the main stretching direction. The heat-shrinkable film 2 having heat shrinkability in the main stretching direction is a film that shrinks at least in the main stretching direction when heated to the heat shrink temperature. That is, the main stretching direction is the main heat shrink direction of the heat shrinkable film 2. Examples of the heat shrink temperature include 60 ° C to 120 ° C.

The heat-shrinkable film 2 is not particularly limited, and examples thereof include styrene resins such as polystyrene; polyester resins such as polyethylene terephthalate and polylactic acid; olefin resins such as polypropylene and cyclic olefin; polycarbonate resins; A film containing one kind selected from thermoplastic resins such as a series resin or a mixture of two or more kinds can be used. Moreover, as the heat-shrinkable film 2, a laminated film in which two or more kinds of heat-shrinkable films are laminated, or a laminated film in which a non-heat-shrinkable layer such as a metal vapor deposition layer is laminated on a film having heat-shrinkable properties. It can also be used. The heat-shrinkable film 2 can be obtained by forming and stretching a film by a known production method and performing a heat aging treatment.
Although the thickness of the said heat-shrinkable film 2 is not specifically limited, For example, about 20-100 micrometers, and a thing about 20-60 micrometers can be used.
As the heat-shrinkable film 2, a film that mainly heat-shrinks at least in the main stretching direction (transverse direction) is used, and, if necessary, slightly heat shrinks in a direction (longitudinal direction) orthogonal to the main stretching direction. A thermally stretchable film may be used.

The heat shrinkage rate in the transverse direction (main stretching direction) of the heat-shrinkable film 2 is not particularly limited, but is preferably 20% or more, more preferably 30% or more, and further preferably 40% or more. is there. In addition, although the thermal contraction rate in the said horizontal direction is so preferable that it is large, since there exists a limit naturally, the thermal contraction rate in the said horizontal direction is theoretically less than 100%. The cap seal-forming substrate 1 using the heat-shrinkable film 2 having a heat shrinkage rate of 20% or more in the lateral direction can be sufficiently adhered to the container by heating. When the heat-shrinkable film 2 is a film that changes heat in the longitudinal direction (direction orthogonal to the main stretching direction), the heat shrinkage rate in the longitudinal direction is, for example, −3 to 15%, preferably 0-12%. The minus of the thermal contraction rate means thermal elongation.
However, the heat shrinkage rate is the ratio of the length of the film before heating (original length) and the length of the film after immersion for 10 seconds in warm water at 85 ° C. (length after immersion). It is obtained by substituting into the following formula.
Heat shrinkage rate (%) = [{(original length in horizontal or vertical direction) − (length after immersion in horizontal or vertical direction)} / (original length in horizontal or vertical direction) ] × 100.

  The heat-shrinkable film 2 may be either transparent or non-transparent, but when a printed layer for displaying a design is provided on the inner surface side of the film, a film having excellent transparency is used. In the present specification, transparent (colorless transparent or colored transparent) refers to a case where the total light transmittance is 70% or more, preferably 80% or more, more preferably 90% or more. However, the total light transmittance refers to a value measured by a measurement method based on JIS K 7361 (a test method for the total light transmittance of a plastic-transparent material).

The knob piece 4 extends from the first end edge 3 a of the main body 3. The knob part 4 and the main body part 3 are composed of a heat-shrinkable film 2 (the knob piece part 4 is composed of a part of the heat-shrinkable film 2). Therefore, the knob piece 4 can be thermally contracted in the lateral direction (the circumferential direction after being attached to the container). Conceptually, the knob piece 4 is integrally connected to a part of the first edge 3a of the main body 3 at the base end 4a. In FIG. 1 to FIG. 3, a one-dot chain line that is a virtual line indicates a base end 4 a of the knob piece 4. Conceptually, since the base end 4a of the knob piece 4 is integrally connected to the first edge 3a of the main body 3, the one-dot chain line that is the phantom line is the first edge 3a of the knob piece 4. It can be said that it shows a part of. The knob piece 4 is a portion within a range surrounded by the outer end edge 4b and the base end 4a.
The planar view shape of the knob piece 4 is not particularly limited, and examples thereof include a substantially semicircular shape, a substantially triangular shape, a substantially rectangular shape, a substantially square shape, a substantially trapezoidal shape, and a substantially inverted trapezoidal shape. Preferably, the knob piece 4 is formed in a substantially semicircular shape in plan view as illustrated. Therefore, the shape of the outer edge 4b of the knob piece 4 in the illustrated example is substantially arcuate.

The lateral length 4W of the knob part 4 is not particularly limited, but if it is too large or small, the knob part 4 after thermal contraction becomes too large or too small to be difficult to pick. From this viewpoint, the lateral length 4W of the knob piece 4 is, for example, 5 mm to 20 mm, and preferably 8 mm to 15 mm. The lateral length 4W of the knob piece 4 is the maximum length among the lengths of the knob piece 4 in the lateral direction.
The vertical length 4H of the knob part 4 is not particularly limited, but if it is too large, the knob part 4 after heat shrinking will rise too much, and if it is too small, the knob part 4 will be small and difficult to pick. From this viewpoint, the vertical length 4H of the knob piece 4 is, for example, 3 mm to 15 mm, and preferably 4 mm to 10 mm. The vertical length 4H of the knob piece 4 is the maximum length among the lengths of the knob piece 4 in the vertical direction.

  A cut line 5 extending in a direction perpendicular to the main stretching direction (longitudinal direction) or a direction inclined with respect to the main stretching direction (direction inclined with respect to the lateral direction) is formed in the plane of the knob piece 4. Has been. The cut line 5 is a cut that penetrates the knob piece 4. The cut line 5 may extend in the vertical direction, or may extend while being inclined with respect to the horizontal direction. Preferably, the cut line 5 extends in the vertical direction as in the illustrated example. When the cut line 5 is formed to be inclined with respect to the horizontal direction, the angle (the acute angle of the angles formed by the horizontal direction and the cut line 5) is preferably more than 70 degrees and less than 90 degrees, Furthermore, 75 degrees or more and less than 90 degrees are more preferable, and 85 degrees or more and less than 90 degrees are more preferable.

The cut line 5 may be linear, curved, or bent. Preferably, the cut line 5 is formed in a straight line shape as shown in the figure. The extending direction of the cut line formed in a non-linear shape such as a curved shape or a bent shape is based on a straight line conceived by connecting both ends of the cut line.
The vertical length 5H of the cut line 5 is not particularly limited, and if it is too small, it is difficult to divide the knob piece 4 into a plurality of pieces in the horizontal direction at the cut line 5. From this viewpoint, the vertical length 5H of the score line 5 is preferably 0.5 mm to 3 mm, and more preferably 0.5 mm to 2 mm. The vertical length 5H of the cut line 5 refers to the length of a straight line conceived by connecting both ends of the cut line 5 extending in the vertical direction.

  The number of the cut lines 5 may be one, but preferably, a plurality of the cut lines 5 are formed independently. When a plurality of cut lines 5 are formed, all the cut lines 5 may have the same shape and the same size, or all the cut lines may have different shapes and / or different sizes, or a part of the cut lines 5 May be the same shape and the same size, and the remaining score line 5 may be a different shape or / and a different size. In the illustrated example, all the cut lines 5 have the same shape and the same size and extend in parallel to the vertical direction.

  The plurality of score lines 5 may be arranged in parallel at a desired interval in the horizontal direction, or may be arranged in a column at a desired interval in the vertical direction, or may be arranged at desired intervals in the horizontal direction and the vertical direction, respectively. May be arranged in parallel and in columns. By arranging the plurality of cut lines 5 in the horizontal direction, the knob piece 4 can be divided into appropriate sections in the horizontal direction. Further, by vertically lining up the plurality of cut lines 5 in the vertical direction, the distance from the proximal end to the distal end of the knob piece 4 can be divided into appropriate sections. Preferably, the plurality of incision lines 5 are arranged in parallel at a desired interval in at least the horizontal direction, and more preferably arranged in parallel and in a column with a desired interval in the horizontal direction and the vertical direction, respectively. When the plurality of cut lines 5 are arranged in parallel and in a row at desired intervals in the horizontal direction and the vertical direction, the respective cut lines may be arranged in parallel to the horizontal direction and in parallel to the vertical direction, As in the illustrated example, the plurality of score lines 5 are arranged in a staggered manner.

When the plurality of cut lines 5 are arranged in parallel in the horizontal direction, the intervals between the adjacent cut lines 5 (the lengths of the adjacent cut lines 5 in the horizontal direction) may be equal intervals or different intervals.
The interval 5W between the adjacent cut lines 5 in the lateral direction is not particularly limited. However, if the distance is too small, an infinite number of cuts are generated in the surface of the knob piece portion 4, and this is not preferable. It becomes difficult to divide the part 4 into appropriate sections in the lateral direction. From such a viewpoint, the interval 5W between the adjacent cut lines 5 in the lateral direction is preferably 1 mm to 3 mm.
When the plurality of cut lines 5 are arranged in a vertical column, the adjacent cut lines 5 may be arranged side by side in the vertical direction, or may be arranged in the vertical direction while shifting in the horizontal direction.

When the plurality of cut lines 5 are arranged in parallel in the horizontal direction, the in-plane of the knob piece 4 is divided into a plurality of sections (regions) in the horizontal direction by the cut lines 5 arranged in parallel in the horizontal direction. The number of sections is the number of cut lines 5 arranged in parallel in the horizontal direction + 1. The number of compartments is preferably 3 to 12, and more preferably 3 to 10.
In the illustrated example, the plurality of score lines 5 are arranged in parallel and in columns at desired intervals in the horizontal direction and the vertical direction, respectively. In this case, a plurality of rows (for example, three rows) of the plurality of cut lines 5 arranged at a desired interval in the horizontal direction are arranged in the vertical direction.

Specifically, the lower row (row in the vicinity of the base end 4a of the knob piece 4) is composed of six cut lines 5 arranged at equal intervals, and the middle row is arranged at equal intervals. It consists of five cut lines 5, and the upper row consists of two cut lines 5. Accordingly, the lower row of the knob piece 4 is divided into seven sections by the lower row of the cut line 5, and the middle portion of the knob piece 4 is divided into six sections by the middle row of the cut line 5. The upper part of the knob part 4 is divided into three sections by the upper row of the cutting lines 5. The plurality of cut lines 5 constituting the middle row are arranged between the cut lines 5 constituting the lower stage and the upper stage.
In the illustrated example, a row in which a plurality of score lines 5 are arranged in the horizontal direction is arranged in three stages in the vertical direction, but the present invention is not limited to this, and the row is arranged in one or two stages in the vertical direction. It may be arranged and may be four or more steps.

  The cut line 5 is formed so as not to intersect the outer end edge 4b of the knob piece 4. On the other hand, the cut line 5 may be formed so as to intersect with the first end edge 3a of the main body 3 (the first end edge 3a corresponds to the base end 4a of the knob piece 4) or does not intersect. It may be formed as follows. In the illustrated example, the cut lines 5 constituting the lower row are formed so as not to intersect the first edge 3a, and the lower end portion of each cut line 5 is formed in the vicinity of the first edge 3a. ing. Note that crossing means that the end of the cut line 5 is in contact with the base end 4a or the like (for example, the cut line 5 and the base end 4a of the knob piece 4 are T-shaped), or The middle part of the cut line 5 intersects with the base end 4a and the like (for example, when the cut line 5 and the base end 4a of the knob piece 4 form a cross shape). In addition, the incision line 5 is formed in the vicinity of the first edge 3a means that the vertical length between the lower end of the incision line 5 and the first edge 3a (the base end 4a of the knob piece 4) is within 2 mm. And preferably within 1 mm.

Moreover, the shrinkage | contraction inhibition layer 61 is provided in the outer surface (namely, outer surface of the heat-shrinkable film 2 made into the knob piece part). The shrinkage inhibition layer 61 is a layer that inhibits heat shrinkage of the heat-shrinkable film 2. The heat-shrinkable film 2 in which the shrinkage inhibition layer 61 is laminated on the outer surface has a heat shrinkage difference between the inside and the outside, and is slightly curved with the inner surface as the inner side of the arc due to heat shrinkage during heating.
The shrinkage inhibiting layer 61 is not particularly limited as long as it can inhibit the heat shrinkage of the heat shrinkable film 2, and examples thereof include a resin layer. As a method for forming the shrinkage inhibition layer 61, the layer forming material may be applied to the knob piece 4 by a conventionally known printing method or coating method and solidified. For example, the shrinkage inhibition layer 61 can be formed from an ink layer. As the ink constituting the ink layer, colored ink, medium ink (ink not containing a colorant), and the like can be used. Further, when classified by the ink solidification method, ultraviolet curable ink or the like can be used as the ink.

The shrinkage inhibition layer 61 may be provided on the entire outer surface of the knob piece 4, or may be provided on a part of the outer surface of the knob piece 4. When the shrinkage inhibition layer 61 is provided on a part of the outer surface of the knob piece 4, the shrinkage inhibition layer 61 is provided at a lower portion of the knob piece 4 including the base end 4 a or a knob including the outer edge 4 b. Provided at the outer edge of the piece 4, or provided at the peripheral edge of the knob piece 4 including the base end 4a and the outer edge 4b, or provided at the center of the knob piece 4 excluding the peripheral edge, etc. Is mentioned.
The shrinkage inhibition layer 61 may be provided so as to extend over the outer surface of the main body 3 beyond the base end 4 a of the knob piece 4.
Although the thickness of the shrinkage | contraction inhibition layer 61 is not specifically limited, For example, they are 1 micrometer-5 micrometers.

The heat-shrinkable film 2 is provided with a printing layer for displaying a design or the like as necessary. The print layer is provided on the outer surface or the inner surface of the heat-shrinkable film 2 or the outer surface and the inner surface. The printing layer may be provided on the entire outer surface or inner surface of the heat-shrinkable film 2, or may be provided on a part of the outer surface or the inner surface.
When a print layer for displaying a design or the like is provided on the outer surface of the heat-shrinkable film 2, the formation of the print layer and the formation of the shrinkage inhibition layer 61 may be performed simultaneously or separately. . For example, when the shrinkage inhibition layer 61 is formed of ink, it is preferable to form the shrinkage inhibition layer 61 simultaneously with the formation of a printing layer for displaying a design or the like. In this case, the shrinkage inhibition layer 61 and the printing layer may be formed of the same kind of ink, for example, an ultraviolet curable ink.
Although not particularly illustrated, the heat-shrinkable film 2 may be provided with a functional layer other than the printing layer and the shrinkage inhibition layer 61, for example, a known functional layer such as a protective layer or a sliding layer.

Further, in the surface of the main body 3 of the heat-shrinkable film 2, a horizontal perforation line 62 extending in the horizontal direction in the middle in the vertical direction and a first point that is a part of the horizontal perforation line 62 are connected and picked. An oblique perforation line 63 extending at an upward inclination is formed at one lateral end of the piece 4.
Here, in the present specification, the perforation line is a set of through-holes in which a plurality of through-holes penetrating the front and back surfaces of the film, such as sewing marks of a sewing needle, are formed at predetermined intervals. Such a perforation line has a non-penetrating part between adjacent through holes. It can be said that the non-penetrating portion is a film portion that has not been subjected to penetrating treatment. Examples of the shape of one through hole in front view include an elongated linear shape and a needle hole shape (the needle hole shape includes a punched substantially circular shape or a substantially elliptical shape).

Moreover, as shown in FIG. 2, the adhesion part for making it adhere | attach on a container is provided in the predetermined range of the inner surface of the main-body part 3. As shown in FIG. In FIG. 2, in order to easily show the bonded portion, the portion is shaded.
The adhesive part can be formed, for example, by applying an adhesive or a pressure-sensitive adhesive to the inner surface of the main body part 3.
For example, the bonding portion includes the entire lower region of the main body 3 including the vicinity of the upper side of the horizontal perforation line 62 and the entire upper portion or a part above the horizontal perforation line 62 in the vertical band-like region at the other side end portion 32. Is provided. Note that the adhesive portion may be partially provided in a central portion above the horizontal perforation line 62 in the longitudinal belt-like region in one side end portion 31 as necessary.

A conventionally well-known thing can be used for the adhesive agent or adhesive which comprises an adhesion part. For example, a heat sensitive adhesive, a heat sensitive adhesive, a pressure sensitive adhesive, etc. are mentioned.
In addition, although an adhesive part can also be comprised by providing an adhesive or an adhesive only in the predetermined range, an adhesive layer or an adhesive layer is usually provided in advance on the entire inner surface of the heat-shrinkable film 2, The masking layer for concealing the adhesive force is laminated on the adhesive layer or the adhesive layer so that the adhesiveness is lost, and the adhesive portion in the predetermined range is configured.

<Usage of cap seal forming substrate and cap seal package>
The cap seal forming substrate 1 is used by being wound around a container. Preferably, the cap seal forming substrate 1 is used by being mounted on a cap-equipped container.
In the case where the adhesive portion is composed of a pressure-sensitive adhesive, the cap seal forming substrate 1 is provided in a state of being temporarily affixed on a release paper (not shown), and the cap seal is removed from the release paper. After the forming substrate 1 is peeled off, it is wound around a container with a cap.
When the adhesive part is composed of a heat-sensitive adhesive or a heat-sensitive adhesive, the heat-sensitive adhesive (or pressure-sensitive adhesive) is heated to a predetermined temperature to activate it, and then placed in a container with a cap. Wrap.

As shown in FIG. 5, the cap-equipped container 7 includes a container main body 71 having a trunk portion for storing items, and a cap portion 72 that closes the spout of the container main body 71 and is detachably attached above the container main body 71. And comprising. The cap part 72 is detachably attached to the container body 71 by a screw action, for example.
The outer shape of the container main body 71 is not particularly limited as long as it can hold the contents therein, and is substantially cylindrical, substantially elliptical, substantially polygonal, such as substantially rectangular or triangular, or substantially triangular. The substantially polygonal pyramid shape, the substantially saddle shape, the substantially daruma shape, and the three-dimensional shape obtained by combining these shapes may be used. Further, the outer shape of the container main body 71 may be a straight body or may not be a straight body. The straight barrel shape refers to a shape whose circumferential length does not change in the vertical direction.
The container body 71 in the illustrated example has a substantially cylindrical shape and a straight body shape.
Items stored in the container main body 71 are not particularly limited. For example, pharmaceuticals such as eye drops; quasi-drugs such as contact lens cleaning liquids; beverages such as alcohols, water and coffee; liquid seasonings such as soy sauce Or a granular seasoning; Sanitary goods, such as a body soap;

As the outer shape of the cap portion 72, various shapes as exemplified in the container main body 71 can be adopted. Further, the outer shape of the cap portion 72 may be a straight body shape or may not be a straight body shape.
The outer shape of the cap part 72 in the illustrated example is substantially frustoconical, and the circumferential length gradually decreases toward the top. Moreover, the upper surface 72a of the cap part 72 is a substantially circular shape, and is a flat surface.
The cap 72 can be detached from the container body 71 when it is turned in the opening direction, and can be attached to the container body 71 when turned in the closing direction. The opening direction of the cap portion 72 in the illustrated example is a counterclockwise direction when viewed from the upper side. However, the opening direction may be a clockwise direction.

As shown in FIG. 5, the inner surface of one side end portion 31 of the main body 3 of the cap seal forming substrate 1 is affixed to the outer peripheral surface of the container main body 71 via an adhesive portion. After the base material 1 is wound around the container 7, as shown in FIG. 6, by attaching the inner surface of the other side end portion 32 to the outer surface of the one side end portion 31 via an adhesive portion, The base material 1 for cap seal formation is formed in a cylindrical shape. Thereafter, the entire cap seal forming substrate 1 formed in the cylindrical shape is heated to a predetermined temperature (for example, 80 ° C. to 100 ° C.), so that the cap seal forming substrate 1 contracts in the circumferential direction, and the cap seal A package is obtained.
As shown in FIGS. 7 to 9, the cap seal package 10 is heat-shrink mounted with the base material 1 for cap seal formation and the base material 1 for cap seal formation with the main stretching direction (lateral direction) as the circumferential direction. A belt-like region including the first edge 3a of the cap seal-forming base material 1 is bent on the upper surface 72a of the container 7 and extends from the first edge 3a. The knob 4A after heat shrinkage stands above the container 7.

  Specifically, the main body part 3 of the base material 1 for cap seal formation is in close contact with the outer peripheral surfaces of the container main body 71 and the cap part 72 with the horizontal perforation line 62 corresponding to the lower end of the cap part 72, The upper region of the main body 3 is bent and brought into close contact with the upper surface 72 a side of the cap 72. This bent portion is referred to as a bent portion 11. The bent portion 11 corresponds to a belt-like region including the first edge 3a of the heat-shrinkable film 2 (cap seal forming substrate 1). When viewed from the upper surface side of the container, the bent portion 11 has a belt-like shape and a substantially circular shape, and the tip of the bent portion 11 (this tip corresponds to the first edge 3a) has a substantially circular shape. Further, the knob part 4A after heat shrinkage is bent upward at a substantially right angle at the first end edge 3a (base end 4a), and is raised upward from the upper surface of the cap part 72. In addition, in the knob part 4A after heat shrinkage, the cut line 5 is hardly visible with the naked eye, so in FIG. 7 to FIG. 9, the cut line is not shown, but when enlarged, The presence of a cut line can also be confirmed in the knob part 4A after heat shrinkage.

  Generally, since the knob piece and the main body are integrally formed from a heat-shrinkable film, when the main body is bent toward the upper surface side of the container, the knob piece is also pulled to the upper surface side following it. As a result, the conventional cap seal rises with an inclination so that the knob portion after heat shrinkage is slightly lifted from the upper surface of the cap portion.

  The base material 1 for forming a cap seal of the present invention has cut lines 5 formed in the surface of the knob piece 4. With the cut line 5 as a boundary, the surface of the knob piece 4 is divided into left and right sections. In particular, when a plurality of the cut lines 5 are arranged in parallel at a desired interval in the horizontal direction, the surface of the knob piece 4 is divided into smaller sections in the horizontal direction. Thus, since the in-plane of the knob piece 4 is divided into small sections, the knob piece 4 is hardly affected by the shape change of the main body 3, and the knob piece 4A is easily raised upward. . In particular, the incision line 5 is formed in the vicinity of the first end edge 3a of the main body part 3 or crossed on the first end edge 3a, so that the main body part 3 near the base end 4a. On the other hand, since the knob piece 4 is easily bent, the knob piece 4A after heat shrinkage is bent upward at the base end 4a (first edge 3a) and rises upward from the upper surface 72 of the container 7.

  Further, since the shrinkage inhibiting layer 61 is provided on the outer surface of the knob piece 4, the side pieces in the lateral direction of the knob piece 4 A are bent so as to be rounded inward (see FIGS. 7 and 9). The both side portions thus acted like a support to supplement the upward rising of the knob piece 4A.

Further, when the plurality of cut lines 5 are arranged in parallel and in a row at desired intervals in the horizontal direction and the vertical direction (for example, the cut lines 5 are formed in a staggered pattern in the surface of the knob piece 4). In some cases, the tab 4 is divided into a plurality of sections in the vertical and horizontal directions. In this case, each of the compartments is also thermally contracted, and the knob pieces 4 that are a set of them are apparently thermally contracted, but the knob pieces 4 that are not formed with the cut lines are thermally contracted. Compared to the case, the amount of heat shrinkage becomes smaller. For this reason, it becomes difficult to sharpen the tip of the knob part 4A after heat shrinkage.
As described above, the cap seal-forming base material 1 of the present invention rises upward from the upper surface 72 of the container 7 after being thermally contracted, and can constitute a grip piece portion 4A that is relatively easy to pick. The preferred tab 4A is not relatively hard even after contraction, and it is difficult for the user to feel uncomfortable when picked with a finger.

[Second Embodiment]
However, in the following description of the second to fourth embodiments, the configuration and effects different from those of the first embodiment will be mainly described, and the terminology or reference numerals are used as they are for the same configurations as the first embodiment. However, description of the configuration may be omitted.
In the illustrated example of the first embodiment, the plurality of cut lines 5 are arranged in a staggered manner. For example, as shown in FIGS. 10 and 11, the plurality of cut lines 5 are arranged in parallel only in the horizontal direction. May be. In this case, the row of the plurality of cut lines 5 is formed in the vicinity of the first edge 3a of the main body 3 as shown in FIG. 10, or the first edge 3a as shown in FIG. It is preferable that it is formed so as to intersect.

[Third Embodiment]
In the illustrated examples of the first and second embodiments, the knob piece 4 is formed in a substantially semicircular shape in plan view. For example, as shown in FIG. 12, it is formed in a substantially rectangular shape in plan view. Also good. Moreover, when forming the knob | pick piece part 4 in the shape which has corner | angular parts, such as a substantially rectangular shape, as shown to the same figure, you may round the corner | angular part and may form in an arc shape (chamfering of a corner | angular part).

[Fourth Embodiment]
In the illustrated examples of the first to third embodiments, the sheet-like cap seal forming substrate 1 is illustrated before the container is mounted, but, for example, as shown in FIG. The cap seal forming substrate 1 may be used.
The base material 1 for cap seal formation formed in this cylindrical shape is formed in a cylindrical shape by bonding one side end portion 31 and the other side end portion 32. In the base material 1 for forming a cap seal that is formed in a cylindrical shape before the container is mounted, the adhesive portion shown in the first embodiment is not necessarily required. Further, instead of the oblique perforation line, as shown in the figure, a pair of vertical perforation lines 64 and 64 that are connected to the horizontal perforation line 62 and extend at both ends in the horizontal direction of the knob piece 4 may be formed.

DESCRIPTION OF SYMBOLS 1 Base material for cap seal formation 2 Heat-shrinkable film 3 Main body part 3a First edge of main body part 4 Knob piece 5 Cut line 7 Container 10 Cap seal package

Claims (6)

A base material for cap seal formation formed from a heat-shrinkable film that is heat-shrinkable in the main stretching direction,
The heat-shrinkable film has a main body portion to be attached to a container, and a knob piece portion extending outward from a first end edge of the main body portion,
The base material for cap seal formation in which the cut line extended in the direction orthogonal to the said main extending | stretching direction or the direction inclined with respect to the main extending | stretching direction is formed in the surface of the said knob part.   The base material for cap seal formation of Claim 1 in which the said cut line is formed in multiple numbers in the surface of the said knob part.   The base material for cap seal formation according to claim 2, wherein the plurality of cut lines are arranged in a staggered manner.   The base material for cap seal formation as described in any one of Claims 1 thru | or 3 with which the said cut line is formed in the vicinity of the said 1st edge, or cross | intersects on the 1st edge.   The base material for cap seal formation as described in any one of Claims 1 thru | or 4 with which the shrinkage | contraction inhibition layer is provided in the outer surface of the said knob part. A base material for cap seal formation according to any one of claims 1 to 5, and a container on which the base material for cap seal formation is heat-shrink mounted with a main stretching direction as a circumferential direction,
The band-like region including the first edge of the base material for forming the cap seal is bent on the upper surface of the container, and the knob piece extending from the first edge is located above the upper surface of the container. Cap seal packaging body that stands up.

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