Label-liner combinations are useful in many different industries. These types of labels are particularly useful for shipping, such as when a front side of a label is imaged with a shipping address and the backside of the label (affixed to a liner) comprises a packing slip for the items being shipped in a package upon which the label-liner combination is adhered to.
Two-sided (2S) labels are useful for shipping and other applications, One type of 2S label consists of a label substrate with a smaller liner substrate centered on the back of the label substrate. Perforations (die cuts) in the label substrate and liner substrate permit a framed portion of the label substrate to be separated with a the liner substrate leaving a border. The perforated border comprises adhesive on the backside of the label substrate such that the combination can be adhered to a package and then separated by the recipient with no adhesive between the framed portion of the label substrate and the corresponding liner to reveal the indicia imaged on the backside of the label substrate (such as a packing slip). 2S label combinations are difficult to separate from the package even with the perforations prefabricated in both the label and liner substrates.
As a result, 2S zipper labels emerged in the industry for purposes of providing a better manner in which the framed portion corresponding to the liner could be separated by a recipient.
With a 2S zipper label a zipper perforation is manufactured in both the label substrate and the liner substrate. The liner substrate only covers a portion of the backside of the label substrate creating a border on the backside of the label substrate upon which adhesive is coated so that the label-liner combination can be adhered to a package for shipping (similar to the 2S border label discussed above). The zipper perforation allows the recipient of the package to tear through both the label substrate in one direction all the way across the combination and remove both a portion of the label substrate and the liner substrate. Additional perforations that outline the liner substrate are made through the label substrate allowing the label portion corresponding to the label substrate and the liner substrate to be separated free of adhesive with the border portion of the label substrate remaining affixed to the package.
Current designs associated with 2S zipper labels are defective and unreliable for a number of reasons. For instance, current 2S zipper-based label-liner combinations are unreliable during manufacture, the label substrate zipper and corresponding liner substrate zipper (perforations or die cuts) do not provide sufficient web strength (in the label-liner combination) and separate (break) from press tension during manufacture. Press operators attempt to overcome these problems by backing off (lowering) the die pressure when making the zippers in the substrates to increase the tension tolerance in the combination for proper press operation. However, these changes result in defective zipper labels that frequently tear and damage when recipients attempted to remove the zippers. Thus, by making the 2S zipper-based label-liner combinations press tolerant during manufacture, the combinations are defective for their intended use and benefit.
In various embodiments, two-sided (2S) zipper label-liner combinations are provided that do not suffer from the above-mentioned flaws associated with existing 2S zipper label-liner combinations.
In an embodiment, a label-liner combination is provided. The label-liner combination comprises a liner substrate and a label substrate. The liner substrate comprises two horizontal die cut ties that define a top portion of the liner substrate, a bottom portion of the liner substrate, and a liner tear strip that separates the top portion from the bottom portion. The label substrate comprising two horizontal perforations that define a label tear strip and two or more additional die cuts corresponding to an outline of three sides of the bottom portion of the liner substrate. A top set of the two horizontal die cuts sits under a top one of the two horizontal perforations. A bottom set of the two horizontal dies cuts sits above a bottom one of the two horizontal perforations.
This type of 2S label-liner combination as shown in
As noted in the
2S zipper label-liner combination 200 comprises a label substrate 210 and a liner substrate 220.
Label substrate 210 comprises a border portion 211, zipper or tear strip perforations 212 defining a tear strip (zipper), and perforations corresponding to 3 sides of the label substrate 213 (just 2 of the 3 sides illustrated in
Liner substrate 220 comprises ties (die cuts or perforations with breaks in between them) 221 corresponding to the tear strip perforations 212 for the tear strip in the label substrate 210 and defining a liner tear strip 222, an end portion 223 of the liner tear strip 222 that extends beyond an outer edge of the label substrate 210, a top portion 224 of the liner substrate 220 that extends above the top perforation 212 for the tear strip of the label substrate 210, and a bottom portion 225 of the liner substrate 220 that extends below the bottom perforation 212 for the tear strip of the label substrate 210.
Combination 200 provides increased tensile strength in the combination 200 around an area defined by the tear strip in the label substrate and the bottom portion 225 of the liner substrate 220 such that during press application the combination 200 around the tear strip in the label substrate 210 and the liner tear strip 222 do not separate or break.
This is different from the convention combination 100 in that there is a supporting top portion 224 in the liner substrate 220 and ties 221 along that correspond to both the top perforations 212 and bottom perforations 212 for the tear strip of the label substrate 210. These elements provide structural support in the combination 200, and these elements of 200 do not exist in existing 2S zipper-based label-liner combinations 100.
Existing combinations 100 could not add top ties 221 because the top portion of the liner was also the inner edge of the border, such that no perforations were capable of being added in order to still have a clean removal of the border. Combination 200 logically separates the liner substrate into a top portion 224 and a bottom portion 225 via liner tear strip 222 (defined by ties 221), such that the top of the liner substrate 220 is no longer adjacent to or aligned with the tear strip defined by perforations 212 or label substrate 210.
Additionally, because of the added structural support provided by top portion 224 and dual ties 221 (top and bottom for perforations 212), the distance between the offset between each perforation 212 and its corresponding label substrate ties 221 can be increased or doubled from what has been conventionally achieved.
Thus, not only is the manufacturing integrity improved by combination 200 but usability, quality, and function of combination 200 is also improved over combination 100.
In an embodiment, label substrate 210 is coated with a thermal sensitive coating on both a front side of substrate 210 and a backside of label substrate 210. Thus, combination 200 is a 2S terminal (2ST) label-liner combination. The two thermal sensitive coatings can be direct thermal sensitive coatings, thermal transfer receptive coatings, or a combination of a direct thermal sensitive coating on one side and a thermal transfer receptive coating on the other side opposite side.
In an embodiment, a backside of border portion 211 of the label substrate 210 is coated with an adhesive. The adhesive can be activated by pressure or by heat. Moreover, the adhesive can be uniformly applied on the backside of border portion 211 or applied in patches or patterns of patches on the backside of border portion 211.
At 310, the press makes die cut ties in a liner substrate to weaken the liner substrate along two horizontal lines defining a liner tear strip, above the liner tear strip is a top portion of the liner substrate and below the liner tear strip is a bottom portion of the liner substrate; and
At 320, the press aligns and adheres a label substrate to the front side of the liner substrate ensuring that a first set of the die cut ties are situated below a top tear strip perforation in the label substrate for a label tear strip and ensuring that a second set of the die cut ties are situated above a bottom tear strip perforation for the label substrate. The top portion of the liner substrate extends below and above the top tear strip perforation in the label substrate and the bottom portion of the liner substrate extends above and below a bottom tear strip perforation in the label substrate.
In an embodiment, at 321, the press aligns an end of the liner tear strip to extend past an outer edge of the label substrate to define a tab for both the tear strip of the label substrate and the liner tear strip of the liner substrate.
In an embodiment, at 322, the press coats adhesive on the backside of the label substrate not corresponding to the front side of the liner substrate except for a segment of the top portion of the liner substrate that extends above the top tear strip perforation in the label substrate.
In an embodiment, the label substrate is coated on both sides with a thermal sensitive coating for thermal imaging of both sides of the label substrate by a terminal printer before being processed by the press.
In an embodiment, the press coats both sides of the label substrate with a thermal sensitive coating before 310 or independent and simultaneous with 310 but before 320.
In an embodiment, the press makes the top tear strip perforation and the bottom tear strip perforation in the label substrate before 320 and the press further makes additional perforations in the label substrate that correspond to an outline of the bottom portion of the liner substrate.
Although the present invention has been described with particular reference to certain preferred embodiments thereof, variations and modifications of the present invention can be affected within the spirit and scope of the following claims.
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Number | Date | Country |
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2023158964 | Aug 2023 | WO |
WO-2023158964 | Aug 2023 | WO |
Number | Date | Country | |
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20230260429 A1 | Aug 2023 | US |