BACKGROUND OF THE INVENTION
Field of the Invention
Composite labels in web or sheet form.
SUMMARY OF THE INVENTION
This invention relates to an improved composite label construction wherein labels can be readily peeled from a carrier either manually or by an automatic label applicator, and wherein an adhesive deadener on adhesive between the labels and the carrier partially detackifies the adhesive to facilitate ready removal of the labels.
In one specific embodiment, there is a longitudinally extending carrier web with a coating of pressure sensitive adhesive on a face thereof, a patterned adhesive deadener on the pressure sensitive adhesive wherein the patterned coating includes a heavy adhesive deadener coating and a light adhesive deadener coating, labels disposed along the carrier web, wherein at least some of the adhesive deadener coating between the labels and the pressure sensitive adhesive includes the light coating to releasably adhere the labels to the pressure sensitive adhesive on the carrier web, and wherein the adhesive deadener coating outside the peripheries of the labels includes the heavy coating to render the pressure sensitive adhesive outside the peripheries of the labels substantially non-tacky. Another embodiment includes a uniform coating of adhesive deadener on the carrier web, wherein matrix material surrounds the labels. Further embodiments will be evident from the drawings and the following detailed description.
BRIEF DESCRIPTION OF THE DIAGRAMMATIC DRAWINGS
FIG. 1 is a perspective view of a roll of a wound composite label web;
FIG. 2 is a top plan view, partly broken away, of the label web of FIG. 1;
FIG. 3 is a sectional view taken along line 3-3 of FIG. 2;
FIG. 4 is a top plan view of a label of the embodiment shown in FIGS. 1 through 3;
FIG. 5 is a sectional view taken along line 5-5 of FIG. 4;
FIG. 6 is a fragmentary top plan view of an alternative embodiment of composite label web;
FIG. 7 is a sectional view taken along line 7-7 of FIG. 6;
FIG. 8 is a fragmentary top plan view of a composite label web in accordance with yet another embodiment;
FIG. 9 is a fragmentary top plan view of another embodiment;
FIG. 10 is a sectional view taken along line 10-10 of FIG. 9;
FIG. 11 is a fragmentary top plan view of still another embodiment;
FIG. 12 is a sectional view taken along line 12-12 of FIG. 11.
FIG. 13 is a fragmentary top plan view of still another embodiment; and
FIG. 14 is a sectional view of an alternative carrier web for use in all the other embodiments.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
With reference to the embodiment of FIGS. 1 through 5, and initially to FIG. 1, there is shown a roll R of a composite label web CW which is preferably wound onto a core C. The composite web CW includes labels L. FIG. 1 is a general view and applies to each of the disclosed embodiments.
With reference to FIG. 2 there is shown a carrier generally indicated 20 which comprises a longitudinally extending carrier web 21 coated with a preferably uniform coating of pressure sensitive, that is, tacky adhesive 22 shown by cross-hatching. The carrier web 21 is preferably comprised of the least expensive material such as paper, but it can be comprised of other substrate materials such as plastics film or the like, release liner material, and so on, namely, any material which can serve as a support or substrate for labels L and allows the labels to be removed manually or by an automatic label applicator preferably without tearing the carrier web 21. An adhesive deadener generally indicated at 23 in the form of a coating is applied over the adhesive 22. The adhesive deadener 23 renders the adhesive less tacky and can be applied in a density or densities to provide the predetermined amount of tackiness. In the embodiment of FIGS. 1 through 5, the adhesive deadener 23 is disclosed as being in a patterned coating, namely, a light adhesive deadener coating 24 indicated by light stippling is applied at regularly spaced apart intervals in areas or zones onto the adhesive 22 on the carrier web 21 and a heavy adhesive deadener coating 25 indicated by heavy stippling is applied to the remainder of the adhesive 22 on the carrier web 21. The heavy coating 25 is applied to the adhesive 22 on the carrier web 21 at the area outside the labels L preferably to within the peripheral or outer marginal edges 26 of the labels L. Because the coatings 24 and 25 of the coating 23 render the adhesive 22 slightly tacky and non-tacky, respectively, the coating 23 can be considered to be uneven or of uneven tackiness. The shape of the zones of light coating 24 are preferably similar, but are not congruent with, the shape of the label L, as shown in FIG. 2. It is preferred that the heavy coating 24 extend to within the peripheral or marginal edge 26 of the labels, as shown. FIGS. 2 and 3 show that the labels L are slightly larger in area than the area of the light coating 24. In FIG. 2, this difference in the size of the labels L, shown by a broken line 27, and the size of the light coating 24 shown in the areas bounded by broken line 28, is readily apparent.
The heavy adhesive deadener coating 25 renders the adhesive 22 preferably completely non-tacky so that the composite web CW is easy to handle by users during removal of labels L and when treading through a printer or an automatic labeler, and the composite label web CW can be readily wound into and unwound from a roll without the composite web CW sticking to itself. The light adhesive deadener 24 enables the underlying adhesive 22 to releasably hold the labels L to the carrier web 21 but allows the labels L to be peeled from the partially deadened adhesive 22 when desired. It is apparent that the adhesive deadener coating 24 allows the tackiness of the adhesive-deadener-coated adhesive 22 to be effective to hold the labels to the carrier web with the desired amount of holding force.
FIGS. 4 and 5 show a preferred label L comprised of fabric such as a woven polyester material 29 with a heat-seal film or coating 30 of any suitable material, for example a thermoplastic heat-seal adhesive such as polyester. Therefore, when the label L comprised of fabric material 29 has been delaminated from the carrier web 21 the label L can be heat sealed to a product or article by heating the coating 30 to the appropriate temperature. The coating 30 is non-tacky except when heated. It is to be understood that the labels of all the disclosed embodiments can be made of a suitable fabric or any other material such as paper, label stock, tag stock, metal foil, plastic or any other suitable flexible material with or without any heat-seal coating.
In making the composite web 20, a web of the label material LM is laminated onto the patterned adhesive deadener coating 23, the labels L are cut from the label material along line 31 and the web of label material surrounding the labels L known as the matrix M (FIGS. 6 and 7) is stripped away, leaving labels L releasably adhered to the carrier web 21. FIG. 6 shows an alternative arrangement wherein the label material is cut as shown at cut line 31 and the matrix or scrap M is allowed to remain as part of the composite web CW. The cuts 31 extend through the label material LM from which the labels L are but preferably not through the carrier 20. Cutting through the carrier would completely blank out the composite label leaving it useable but making it more difficult to handle than in web form. In all other respects the composite label web CW of the embodiment of FIGS. 6 and 7 is the same as the embodiment of FIGS. 1 through 5.
The embodiment of FIG. 8 is the same as the embodiment of FIGS. 6 and 7, except as noted below. The composite label web CW includes the carrier 20a in the form of a carrier web 21a with a coating of pressure sensitive adhesive 22a coated with two longitudinally extending zones of heavy adhesive deadener 25a shown by heavy stippling outboard a zone of light adhesive deadener 24a shown by light stippling. The heavy coating 25a renders the adhesive 22a non-tacky, whereas the light coating 24a releasably adheres the label La to the carrier web 21a. The marginal edges 26a of the labels La are, thus, preferably not adhered to any adhesive so that labels La are easy to peel from preferably fully deadened adhesive 22a on the carrier web 21a. As is apparent, the labels La are wider than the continuous zone of light adhesive deadener coating 24a.
The embodiment of FIGS. 9 and 10 is the same as the foregoing embodiments except as follows. The carrier 20b includes a carrier web 21b having a coating of pressure sensitive adhesive 22b. A light adhesive deadener coating 24b is applied to the pressure sensitive adhesive coating 22b. The coating 24b can be uniform or continuous throughout. Labels Lb defined by cuts 31b are releasably adhered to the partially deadened adhesive 22b and can be readily peeled from the carrier web 21b. The waste material or matrix LMb can be allowed to remain with the carrier web 21b as shown in FIGS. 9 and 10. The matrix LMb completely masks the tackiness of the partially deadened adhesive 22b completely. The label Lb with its heat-seal coating 30b can be readily peeled from the partially deadened adhesive 22b.
With reference to the embodiment of FIGS. 11 and 12, which is the same as the other embodiments except as noted, the composite label web CW is comprised of a carrier 20c including a longitudinally extending carrier web 21c having a uniform coating of a pressure sensitive adhesive 22c shown by cross-hatching. There is a pattern of zones or areas of light adhesive deadener coating 24c which are similar to but preferably not congruent with labels Lc. The labels Lc are formed by cutting through the label material LMc at cuts or cut lines 31c. The matrix M surrounding the labels Lc is simply left in place and the labels Lc can be removed with the matrix M in place. The coating 24c extends outside the outer peripheries of the labels Lc to assist in peeling the labels Lc from the carrier web 21c. As is apparent the labels Lc are registered with the adhesive-deadener 24c, but the adhesive deadener 24c extends beyond the outline or profile of the labels Lc, that is, the labels Lc are smaller than the areas or zones of coating 24c.
With reference to the embodiment of FIG. 13, which is the same as the other embodiments except as noted, the composite label web CW includes carrier 20d in the form of a longitudinally extending carrier web 21d. A coating of pressure sensitive or tacky adhesive 22d applied to a side of the carrier web 21d. There is a pattern of regularly longitudinally spaced areas or zones of adhesive deadener generally indicated at 23d comprised of a border of a heavy coating of adhesive deadener 23d1 within which are leading and trailing zones 23d2 and 23d3 and an intervening zone 25d4. The outside dimensions of the zone 23d1 can be the same as or slightly larger than those of the label Ld, leaving an unadhered border at the marginal edge of the label Ld, making it easy to peel labels Ld from the carrier web 21d. The partially deadened adhesive at zones 23d2 and 23d3 adheres the labels Ld more securely to the carrier web 21d than the partially deadened adhesive at the zone 25d4, that is, by making the adhesive deadener at zones 23d2 and 23d3 a lighter coating than the coating of the adhesive deadener at the zone 23d4, the leading and trailing edges of the label Ld are held more securely by the partially deadened adhesive 22d than the part of the label Ld lying between zones 23d2 and 23d4. The coating at zones 23d2 and 23d3 can be considered to be light or of light adhesive deadening quality, while the coating at the zone 23d4 can be considered heavier but of moderate or of moderate adhesive deadening quality. No stippling is shown at zone 23d4, for clarity. This construction is advantageous because during label production the zone 23d3 is at the leading position and the zone 23d2 is at the trailing position, and the reverse is true when subsequently the composite web CW is fed through a printer or an applicator. The matrix LMd can be left on the carrier web 21d if desired or it can be removed. However, alternatively, removal of the matrix LMd is facilitated by having the entire adhesive 22d outward beyond the area of adhesive deadener 23d1 be coated with a heavy coating of adhesive deadener, the same as in area 23d1. It is apparent that the peel characteristics of the labels are predetermined by varying the amount of adhesive deadener distributed in each of the zones 23d1, 23d2, 23d3 and 23d4. This uneven coating pattern or uneven distribution enables the user to have the desired label peel characteristics. Even the adhesive deadener patterns in the embodiments of FIGS. 1 through 10 are considered to have varied or uneven distribution.
FIG. 14 shows an alternate form of a carrier web 21e which can be used with any one of the above described embodiments. Instead of starting with a linered web such as the webs 21, 21a, 21b, 21c, or 21d each of which has been coated with a pressure sensitive adhesive from which a release liner (not shown) has been stripped, a linerless web can be used as shown in FIG. 14 comprised of a carrier web or liner 21e or the like, a coating of pressure sensitive adhesive 22e and a release coating RC comprised, for example, of silicone. The web 21e can be constructed of the same materials as the carrier web 21. Such a web as shown in FIG. 14, can be wound into roll and subsequently used in place of the adhesive-coated carrier webs 21, 21a, 21b, 21c or 21d.
The composite label webs CW disclosed herein have suitable registration means registered with the labels for use in printers and/or label applicators. Although such means are shown to be slots 32 entirely through the composite web CW, registration can instead be accomplished by printed marks, side notches, varying opacity and the like.
By way of example, not limitation, a useful adhesive deadener comprises a UV clear coating (Gloss Coat 2-RVG 000116) mixed with a UV Flexo Black Ink (RSL 400837) available from Water Ink Technologies, Lincolnton, N.C. The black ink colorant in the adhesive deadener 23 makes the pattern of the adhesive deadener 23 visible during production which aids in registering the label-defining cuts 31, 31a, 31b, and 31c in the label material LM, LMb, LMc and LMd with the adhesive deadener areas which underlie the labels being formed.
Other embodiments and modifications of the invention will suggest themselves to those skilled in the art, and all such of these as come within the spirit of this invention are included within its scope as best defined by the appended claims.
Patent Application
20070020423
