The prior art is replete with merchandise labeling using bands about merchandise. Sometimes the heretofore known bands have elastic sections united to non-elastic sections, and sometimes they are endless elastic bands commonly called rubber bands.
For example, U.S. Pat. No. 2,516,292 (Bennett) of Jul. 25, 1950 teaches a preformed labeling article of elastic and non-elastic sections for holding bananas constantly under tension as they shrink. The ends of the elastic and non-elastic sections of the band are overlapped and adhesively or otherwise bonded together. U.S. Pat. No. 5,733,652 (Stowman et al.) of Mar. 31, 1998 discusses banding of merchandise by a technique involving in situ bonding of the ends of a strip of elastic material with or without an interposed separate strip of material that is not necessarily elastic. In situ bonding, however, involves carrying bonding equipment to the site where banding of merchandise is to be done (e.g., for bonds formed by heat sealing) or involves removing and disposing of a release liner at the site of banding (e.g., for bonds formed by using liner-protected contact or pressure-sensitive adhesive layers). Neither approach is ideal for field application of labels. Also, when either a preformed band of bonded sections or an in situ formed band of bonded sections is stretched about merchandise, it exerts a compressive force on the merchandise. Relatively strong bonds are needed to prevent bond separation under such circumstances since the bonds are in the line of stretching and are subjected to the tension of stretching during use. A still further problem is the questionable reliability of machine-readable codes on stretched bands encircling merchandise, such as UPC bar codes, for example.
Where endless bands of rubber (commonly called rubber bands) are used, as in teachings of U.S. Pat. No. 5,617,656 (Ludlow et al.); U.S. Pat. No. 5,697,177 (Ludlow et al.); and U.S. Pat. No. 6,058,639 (Tinklenberg), a second step arises for attaching a tag. The two-step approach is not the most efficient, although it has been one of the more popular approaches in the past because the tag is distinct from the rubber band and can carry reliable UPC bar coding that is easy to handle at checkout scanning.
A known merchandise marking article capable of single-step application to achieve simultaneous banding and scan-reliable bar-coding of merchandise is described in U.S. Pat. No. 5,778,583 (Larsen) of Jul. 14, 1998, where the tag is attached to the rubber band by encircling a section of the tag about the rubber band prior to the time the rubber band is fastened in banding condition about merchandise. However, economy is not a hallmark for the manufacture of this prior art article.
An issue encountered when using elastic bands for labeling is that the bands can easily be removed by a user. Such removal may undesirably allow consumers to remove or switch labels or tags between products. Accordingly, in some cases, a more permanent method for attaching a tag to a product is desirable.
In one aspect, an article includes a first sleeve formed from a first heat-shrinkable polymer sheet, the first heat-shrinkable polymer sheet having opposed first and second edges, wherein the first sleeve is formed with a first seam proximate the first edge. A portion of the first heat-shrinkable polymer sheet extends between the first sleeve and the second edge. A tag is bonded to the portion of the first heat-shrinkable polymer sheet proximate the second edge at a first overlap zone of the tag and the portion of the first heat-shrinkable polymer sheet.
In another aspect, an article includes a heat-shrinkable polymer sheet and a tag bonded to the sheet. The heat-shrinkable polymer sheet has a central area and a plurality of slits disposed through the sheet, at least one of the plurality of slits oriented to partially surround the central area.
This disclosure, in its various combinations, may also be characterized by the following listing of items:
1. An article including:
This summary is provided to introduce concepts in simplified form that are further described below in the Detailed Description. This summary is not intended to identify key features or essential features of the disclosed or claimed subject matter and is not intended to describe each disclosed embodiment or every implementation of the disclosed or claimed subject matter. Specifically, features disclosed herein with respect to one embodiment may be equally applicable to another. Further, this summary is not intended to be used as an aid in determining the scope of the claimed subject matter. Many other novel advantages, features, and relationships will become apparent as this description proceeds. The figures and the description that follow more particularly exemplify illustrative embodiments.
The disclosed subject matter will be further explained with reference to the attached figures, wherein like structure or system elements are referred to by like reference numerals throughout the several views. It is contemplated that all descriptions are applicable to like and analogous structures throughout the several embodiments.
While the above-identified figures set forth several embodiments of the disclosed subject matter, other embodiments are also contemplated, as noted in the disclosure. In all cases, this disclosure presents the disclosed subject matter by way of representation and not limitation. It should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that fall within the scope of the principles of this disclosure.
The figures may not be drawn to scale. In particular, some features may be enlarged relative to other features for clarity. Moreover, where terms such as above, below, over, under, top, bottom, side, right, left, vertical, horizontal, etc., are used, it is to be understood that they are used only for ease of understanding the description. It is contemplated that structures may be oriented otherwise.
In an exemplary embodiment, tag article 30 is configured with a tag 38 attached to shrink film 40. In an exemplary embodiment, shrink film 40a is configured as a sleeve sized to pass over cap 36 and neck 34 of product 32a, as shown in
As shown in
As shown in
In the illustrated embodiment, a continuous cut is provided along cut line 54, and at least partial cuts are provided at lines of demarcation 44. In the illustrated embodiment, cut line 54 is configured to completely sever and separate adjacent tags 38a from each other and provide narrowed necks 56 proximate joint 52 between each tag 38 and its respective shrink film 40. In some embodiments, a seam at joint 52 is positioned on a narrowed portion of tag article 30, such as at neck 56. Thus, shrinkage of shrink film strip 40 does not cause undesirable wrinkling or other deformation on a major portion of tag 38.
In another embodiment, a full cut is provided at each demarcation line 44 to fully separate the tag articles 30a of web 42 from each other. In one method of use, as illustrated in
Excess web material (i.e., “weed”) resulting from the cutting of cut line 54 is preferably removed. In some embodiments, adjacent tags 38 can remain ruptureably connected to each other. Line of demarcation 44 can delineate ruptureably connected adjacent tag articles 30 with perforations, score lines, cut lines of full or partial depth, and other mechanisms for forming a ruptureable line or contour of weakness connecting adjacent tag articles 30. Moreover, while a particular shape and configuration of the demarcation 44 is illustrated, it is contemplated that other forms and shapes can be used. For example, demarcation 44 need not be straight and can include curves and other shapes. Web 42 can be further processed while retaining at least some of the tag articles in connection, such as by rolling, folding, or cutting into sheets and stacking the cut sheets, for example. Adjacent tag articles 30 can remain ruptureably connected at demarcation 44. Alternatively or additionally, individual tag articles 30 may be fully severed for further use.
As shown in
Overlap zone 50 is formed where tag strip 38 overlies and overlaps shrink film 40. As shown in
A material for tag strip 38 is preferably flexible and pliable but inextensible (e.g., not stretchable and not elastic) for most applications. For purposes of this disclosure, an elastic material is one that has an initial dimension in a relaxed state; the dimension increases under tension, such as by stretching; moreover, upon release of the tension force, the dimension returns to, or nearly to, the initial unstretched dimension. In an exemplary embodiment, the material for tag strip 38 is substantially non-elastic and non-stretchy under hand-applied forces. For example, the sheet material for tag strip 38 can have sufficient dimensional stability to carry a reliably scannable (i.e., non-distorted) print of a Universal Product Code (UPC) symbol as well as other human-readable or machine-readable markings. Moreover, in an exemplary embodiment, a material for tag strip 38 does not shrink, melt, or otherwise change form due to application of heat sufficient to shrink the shrink film 40.
In an exemplary embodiment, the sheet material for tag strip 38 is sufficiently water resistant to not disintegrate and not significantly pucker, wrinkle, or otherwise disfigure or deform when placed in water. Moreover, in an exemplary embodiment, inks or other printing media used for indicia 62 are sufficiently water resistant to avoid disintegration or destruction when repeatedly subjected to water and washing operations (as is common for produce displays in supermarkets). The sheet material for tag strip 38 also should be somewhat tough in the sense of being sufficiently tear resistant to deter damage to it during handling.
Suitable materials for forming the tag strip 38 include paper, polystyrenic thermoplastics, polyolefinic thermoplastics, polyesters, and others. Exemplary suitable thermoplastic materials include polymers of styrene, ethylene, propylene, as well as a variety of other monomers and mixtures of monomers (e.g., to make co-polymers and ter-polymers, etc.). Sheet thickness for polyester plastics and some others can be quite thin, even down to the 3 mil (0.08 mm) or 4 mil (0.10 mm) range, and still exhibit the toughness and the practical non-elasticity desired.
The polymers may be formulated so that printing inks are readily accepted on the surface of the sheet material. Polymers can also be treated with special surface treatments to enhance acceptance of printing inks for indicia 62, which can be provided on a front and/or back surface of tag 38. The exact structure and composition of suitable sheet materials for tag strip 38 can vary widely. Any of a variety of commercially available inks compatible with or accepted on tag strip 38 and retained thereon, and in any desired color, may be used to print indicia 62. In a case where it is desirable to use a water-soluble ink, a thin film of water-insoluble plastic may be applied over the ink to enhance water resistance of the printed markings.
To increase impact resistance of tag strip 38, a styrene-butadiene-styrene impact modifier can be useful in amounts up to about 40 percent of the weight of a polystyrene material. Tag strips 38 of such material are highly stable against stretching. They have desired flexibility balanced by a slight stiffness that contributes to ease of handling during manufacture and use. Such tag strips 38 also can be reliably printed, especially when first subjected to a surface treatment such as, for example, a corona treatment such as available from Pillar Technologies of Hartland, Wis., a division of Illinois Tool Works. The treatment enhances wettability and adhesion characteristics of inks and adhesives on plastic substrates.
Shrink film 40 may be made from any of a variety of heat-shrinkable materials. For example, suitable polymer materials include printable heat-shrinkable poly-vinyl chloride (PVC), polyester (PETG) or styrene butadiene-styrene (SBS/OPS) commercially available from Bonset America Corporation of Greensboro, N.C. Another suitable material is polylactic acid (PLA) biodegradable shrink film, available from Plastic Suppliers Inc. of Columbus, Ohio.
Selection of materials for tag article 30 may take into account factors such as cost and bonding compatibility with shrink film 40. Generally, similar materials tend to bond together (as by polymer bonding) better than dissimilar materials; and materials of like polarity usually bond better than materials of unlike polarity. Thus, tag material selection can be made from polymers in the same family as the shrink film, such as those including at least some monomers related to, or the same as, those present in shrink film. Surface treatments such as corona treatments also help to improve bonding. Still further, compatibilizers that adjust the polarity of material can be used to improve bonding. Additional information is described in U.S. Pat. No. 8,635,795 to Ludlow et al., which is hereby incorporated by reference.
Heat welding as by applying heat and pressure on overlap zone 50 be useful to form the bond between tag 38 and shrink film 40. Sonic welding is another way to unify the layers and achieve a cohesive bond between tag 38 and shrink film 40. Extruding a molten polymer of shrink film 40 to tag strip 38 is another way of forming web 42. This method can be particularly effective where molecules or parts of molecules of the shrink 40 film and tag strip 38 at the overlap zone 50 interdiffuse with each other. Bonds can also be formed by interposing an intermediate layer at the overlap zone 50 (e.g., an adhesive) to which both the tag material and the shrink film material will readily bond because of their compatibility to the intermediate material. Still further, treatment of the surface areas where bonding is to be accomplished can be effective. Even mechanical bonding can be effective, as where the tag material is porous (e.g., paper and the porous polymer product called “Teslin”), and the shrink film material is applied in molten condition or at least in a softened condition and pressed into the voids or interstices of the porous tag 38. Any useful bonding technique and structure that joins the tag 38 with the shrink film 40 in a manner forming a unifying flat bond at overlap zone 50 that can withstand delamination in expected use is suitable.
Many different configurations of tag article 30 are possible to impart desired display characteristics. For example,
Thus, it is contemplated that tag assemblies 30 of the present disclosure can be configured in many different shapes and designs, including changes to the shapes and sizes of tags 38, shrink films 40, and a form of connection therebetween, such as the presence or absence of a neck 56, and variations in forms thereof.
Moreover, indicia 62 may be provided on tag 38 and/or shrink film 40. Indicia 62 may include informational or decorative matter to be printed, embossed, or otherwise provided on tag article 30. Additionally or alternatively, tag article 30 may carry other substances, such as fragrances or light emitting or reflective particles, for example.
Shrink film strip 40 extends from edge 58 distant from tag 38 to edge 59 positioned adjacent tag 38. In the illustrated embodiment, aperture 66 is circular, and a portion of shrink film 40h surrounding aperture 66, concentrically, is also substantially circular. However, it is contemplated that other shapes and configurations for a substantially flat shrink film portion 40h are also suitable. In the illustrated embodiment, shrink film 40h includes a plurality of cuts, slots or slits 68 formed partially concentrically and surrounding aperture 66. These slits 68 facilitate the shrinkage of shrink film 40h out of the initial flat or plane configuration, to allow shrink film 40h to more readily conform to contours of a portion of product 32h, as shown in
An advantage of a tag article 30h as shown in
For use, as shown in
Non-limiting, exemplary embodiments of disclosed articles are described. In exemplary embodiments as shown in
In exemplary embodiments, seam 60 is substantially linear, and a height dimension 82 of the tag 38 parallel to the seam 60 is less than a length 80 of the seam 60 between the first and second open ends 74, 76. In exemplary embodiments, a neck 56 is disposed on the portion 78 of the sheet 40, the neck 56 having a dimension measured parallel to the height dimension 82 of the tag 38 that is less than the height dimension 82 of the tag 38. In exemplary embodiments, a joint 52 between the tag 38 and the portion 78 of the sheet 40 is located on the neck 56. In an exemplary embodiment illustrated in
In exemplary embodiments, article 30f, 30g′, 30g″ includes a first sleeve 72f and a second sleeve 72f′. First sleeve 72f is formed from a first heat-shrinkable polymer sheet 40f, 40g the first sheet 40f, 40g having opposite first and second edges 58, 59. The first sleeve 72f is formed with a seam 60 proximate the first edge 58. The second sleeve 72f′ is formed from a second heat-shrinkable polymer sheet 40f′, 40g′. The second sheet 40f′, 40g′ has opposite third and fourth edges 58, 59. The second sleeve 72f′ is formed with a seam 60 proximate the third edge 58. Tag 38f, 38g′, 38g″ is bonded to the first sheet 40f, 40g proximate the second edge 59 and is bonded to the second sheet 40f′, 40g′ proximate the fourth edge 59. In exemplary embodiments of article 30f, 30g′, 30g″, the tag 38f, 38g′, 38g″ is bonded to the first sheet 40f, 40g at a first overlap zone 50; and the tag 38f, 38g′, 38g″ is bonded to the second sheet 40f′, 40g′ at a second overlap zone 50. In the exemplary article 30f, 30g′, 30g″, a height of the tag 38f, 38g′, 38g″ at the first overlap zone approximately matches a height of the first sheet 40f, 40g at the first overlap zone. In the exemplary article 30f, the height of the first sheet 40f at the first overlap zone (near edge 59) differs from a height of the first sheet 40f outside the first overlap zone (such as near edge 58). In the exemplary article 30g′, 30g″, the height of the tag 38g′, 38g″ at the first overlap zone (with sheet 40g) differs from a height of the tag 38g′, 38g″ at the second overlap zone (with sheet 40g′).
In exemplary embodiments, article 30h, 30i, 30j includes a heat-shrinkable polymer sheet 40h, 40i, 40j having a central area 84 and a plurality of slits 68 disposed through the sheet 40h, 40i, 40j. At least one of the plurality of slits 68 is oriented to partially surround or encircle the central area 68. Tag 38h, 38i, 38j is bonded to the sheet 40h, 40i, 40j. In exemplary embodiments, the central area 84 is circular and the at least one of the plurality of slits 68 is concentric with the central area 84. In exemplary embodiments, the central area 84 and plurality of slits 68 form a product attachment portion of the article 30h, 30i, 30j, and the article 30h, 30i, 30j further includes a neck 56 disposed between the product attachment portion and the tag 38h, 38i, 38j. In the embodiment of article 30j, the neck 56 is formed as part of the tag 38j. Tag 38h, 38i, 38j is bonded to the sheet 40h, 40i, 40j at an overlap zone 50. In some embodiments, the overlap zone 50 does not include an entirety of the tag 38h, 38i, 38j. In the embodiment of article 30h, the central area 84 includes an aperture 66 through the sheet 40h. In an exemplary embodiment, aperture 66 is circular, and the at least one of the plurality of slits 68 is concentric with the aperture 66. Although a circular shrink film, circular aperture and partially circular cuts are illustrated, it is contemplated that other shapes for these components are also suitable, including oval, elliptical, square, rectangular, triangular, and other curved and polygonal shapes.
Although the subject of this disclosure has been described with reference to several embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the scope of the disclosure. In addition, any feature disclosed with respect to one embodiment may be incorporated in another embodiment, and vice-versa.
This application is a division of U.S. patent application Ser. No. 16/689,245 filed Nov. 20, 2019, which claims the benefit of priority from U.S. Provisional Patent Application No. 62/776,607, filed Dec. 7, 2018. The contents of these priority applications are hereby incorporated by reference in their entirety.
Number | Name | Date | Kind |
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5842323 | Weder | Dec 1998 | A |
20020029520 | Weder | Mar 2002 | A1 |
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20140326727 | Jouin | Nov 2014 | A1 |
20170129673 | Wintz | May 2017 | A1 |
20200002042 | Christman | Jan 2020 | A1 |
Number | Date | Country |
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2664557 | Nov 2013 | EP |
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Machine translation of JP 2002-240853 via EPO (Year: 2002). |
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20220165183 A1 | May 2022 | US |
Number | Date | Country | |
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62776607 | Dec 2018 | US |
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Parent | 16689245 | Nov 2019 | US |
Child | 17669539 | US |