PLURALITY OF INTEGRALLY INTERCONNECTED WIPES FOR USE IN DISPENSER
20210371189 · 2021-12-02
Inventors
- Kristina Marie Price (Neenah, WI, US)
- Sarah Elizabeth Knight (Cambridge, GB)
- Finbarr Charles Ronald Williamson (London, GB)
Cpc classification
B65D83/0805
PERFORMING OPERATIONS; TRANSPORTING
A47K2010/428
HUMAN NECESSITIES
B65D83/0894
PERFORMING OPERATIONS; TRANSPORTING
International classification
B65D83/08
PERFORMING OPERATIONS; TRANSPORTING
Abstract
A plurality of integrally interconnected wipes collectively define a web. The plurality of wipes includes a first wipe, a second wipe, and a third wipe. A first transverse intermittent cut line defines a right side major tie that connects the first wipe to the second wipe, and the right side major tie has a width. A second transverse intermittent cut line defines a left side major tie that connects the second wipe to the third wipe. In particular embodiments, the first wipe and the second wipe are connected to each other only within the right side of the web, and the second wipe and the third wipe are connected to each other only within the left side of the web. In certain embodiment, the wipes are also connected to each via minor ties that are transversely narrower than the major ties.
Claims
1. A plurality of integrally interconnected wipes that collectively define a web, the web having a right edge, a left edge, a longitudinal direction extending parallel to the right and left edges, a transverse direction perpendicular to the longitudinal direction, and a longitudinal centerline extending in the longitudinal direction and positioned midway between the right and left edges, the web defining a right side transversely between the centerline and the right edge and defining a left side transversely between the centerline and the left edge, the plurality of wipes comprising a first wipe, a second wipe, and a third wipe, wherein a first transverse intermittent cut line defines a first right side major tie disposed on the right side of the web, wherein the first right side major tie connects the first wipe to the second wipe, wherein the first right side major tie has a width extending in the transverse direction, and wherein a second transverse intermittent cut line defines a second right side major tie disposed on the right side of the web, wherein the second right side major tie connects the second wipe to the third wipe, wherein the second right side major tie has a width extending in the transverse direction, wherein the first wipe is connected to the second wipe only on the right side of the web, and wherein the second wipe is connected to the third wipe only on the right side of the web.
2. The plurality of integrally interconnected wipes of claim 1, wherein each of the first right side major tie and the second right side major tie are between about 2 and 10 millimeters wide.
3. The plurality of integrally interconnected wipes of claim 1, wherein the first right side major tie and the second right side major tie abut the right edge.
4. The plurality of integrally interconnected wipes of claim 1, wherein each of the first right side major tie and the second right side major tie are spaced from the right edge by at least 2 millimeters.
5. The plurality of integrally interconnected wipes of claim 1, wherein the first right side major tie and the second right side major tie overlap in the transverse direction.
6. The plurality of integrally interconnected wipes of claim 5, wherein the first right side major tie and the second right side major tie fully overlap in the longitudinal direction.
7. A plurality of integrally interconnected wipes that collectively define a web, the web having a right edge, a left edge, a longitudinal direction extending parallel to the right and left edges, a transverse direction perpendicular to the longitudinal direction, and a longitudinal centerline extending in the longitudinal direction and positioned midway between the right and left edges, the web defining a right side transversely between the centerline and the right edge and defining a left side transversely between the centerline and the left edge, the plurality of wipes comprising a first wipe, a second wipe, and a third wipe, wherein a first transverse intermittent cut line defines a first right side major tie disposed on the right side of the web and a first left side minor tie disposed on the left side of the web, wherein the first right side major tie and the first left side minor tie connect the first wipe to the second wipe, the first right side major tie and the first left side minor tie each having a width extending in the transverse direction where the first right side major tie width being greater than the first left side minor tie width, and wherein a second transverse intermittent cut line defines a second right side major tie disposed on the right side of the web and a second left side minor tie disposed on the left side of the web, wherein the second right side major tie and the second left side minor tie connect the second wipe to the third wipe, the second right side major tie and the second left side minor tie each having a width extending in the transverse direction where the second right side major tie width being greater than the second left side minor tie width, wherein the first wipe is unconnected to the second wipe between the first right side major tie and the first left side minor tie, and wherein the second wipe is unconnected to the third wipe between the second right side major tie and the second left side minor tie.
8. The plurality of integrally interconnected wipes of claim 7, wherein the first wipe is connected to the second wipe only by the first right side major tie and the first left side minor tie, and wherein the second wipe is connected to the third wipe only by the second right side major tie and the second left side minor tie.
9. The plurality of integrally interconnected wipes of claim 7, wherein each major tie is between about 2 and 10 millimeters wide.
10. The plurality of integrally interconnected wipes of claim 7, wherein minor tie is between about 0.5 and 3 millimeters wide.
11. The plurality of integrally interconnected wipes of claim 7, wherein plurality of integrally interconnected wipes.
12. The plurality of integrally interconnected wipes of claim 7, wherein each major tie abuts a web edge.
13. The plurality of integrally interconnected wipes of claim 7, wherein the first right side major tie and the second right side major tie overlap in the transverse direction.
14. The plurality of integrally interconnected wipes of claim 13, wherein the first right side major tie and the second right side major tie fully overlap in the transverse direction.
15. The plurality of integrally interconnected wipes of claim 13, wherein the first right side minor tie and the second right side minor tie overlap in the transverse direction.
16. The plurality of integrally interconnected wipes of claim 15, wherein the first right side minor tie and the second right side minor tie fully overlap in the transverse direction.
17. A dispenser containing a plurality of integrally connected wipes, the plurality of integrally interconnected wipes collectively defining a web having a right edge, a left edge, a longitudinal direction extending parallel to the right and left edges, a transverse direction perpendicular to the longitudinal direction, and a longitudinal centerline extending in the longitudinal direction and positioned midway between the right and left edges, the web defining a right side transversely between the centerline and the right edge and defining a left side transversely between the centerline and the left edge, the plurality of integrally connected wipes further comprising: a first wipe connected to a second wipe by a first transverse intermittent cut line; and a third wipe connected to the second wipe by a second transverse intermittent cut line, wherein the first transverse intermittent cut line defines a first connection having a first width extending in the transverse direction of between 2 mm and 10 mm, the first connection being disposed entirely on the right side or the left side of the web connecting the first wipe to the second wipe, and wherein the second transverse intermittent cut line defines a second connection having a second width extending in the transverse direction of between 2 mm and 10 mm, the second connection being disposed entirely on the right side or the left side of the web connecting the second wipe to the third wipe, wherein the first wipe is connected to the second wipe only by the first connection, and wherein the second wipe is connected to the third wipe only by the second connection, and wherein the first wipe, the second wipe, and the third wipe are in a stacked configuration.
18. The dispenser containing the plurality of integrally connected wipes of claim 17, wherein the first connection and the second connection each comprise a plurality of bridging strips.
19. The dispenser containing the plurality of integrally connected wipes of claim 17, wherein the first connection and the second connection are disposed on a same right side or left side of the web.
20. The dispenser containing the plurality of integrally connected wipes of claim 17, wherein the first connection and the second connection are disposed on opposite sides of the web.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The present invention will be more fully understood and further features will become apparent when reference is made to the following detailed description of the invention and the accompanying drawings. The drawings are merely representative and are not intended to limit the scope of the claims. Like parts of the items depicted in the drawings are referred to by the same reference numerals.
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DETAILED DESCRIPTION OF THE INVENTION
[0039] The present invention will be more fully understood and further features will become apparent when reference is made to the following detailed description of the invention and the accompanying drawings. The drawings are merely representative and are not intended to limit the scope of the claims. Like parts of the packages depicted in the drawings are referred to by the same reference numerals.
[0040] Referring to
[0041] In particular embodiments, as representatively illustrated in
[0042] In particular embodiments, a second transverse intermittent cut line 50 extends across the web 12. The second transverse intermittent cut line 50 partitions the web 12 into two longitudinally adjacent wipes—namely, the second wipe 32 and the third wipe 34. The second transverse intermittent cut line 50 defines a left side major tie 52, and in particular embodiments a right side minor tie 54a. The left side major tie 52 and the right side minor tie 54a together connect the second wipe 32 to the third wipe 34. The left side major tie 52 has a width 53, and the right side minor tie 54a has width 55. Both widths 53, 55 extend in the transverse direction 22. The width 53 of the left side major tie 52 is greater than the width 55 of the right side minor tie 54a. Note that the cut lines 40, 50 may be straight, wavy, zig-zag, or otherwise non-straight. Also, the cut lines 40, 50 may travel a path that is parallel to the transverse direction 22, or that is not parallel to the transverse direction 22, such as tilted relative to the transverse direction 22.
[0043] In particular embodiments, such as that representatively illustrated in
[0044] In particular embodiments (
[0045] In particular embodiments, the width 43/53 of each major tie 42/52 is between about 2 and 15 millimeters wide, and more particularly between about 2 and 10 millimeters wide. In particular embodiments, the major tie is more than 3 millimeters wide, more particularly more than 4 millimeters wide, still more particularly more than 5 millimeters wide, and still more particularly more than 8 millimeters wide. Additionally or alternatively, in particular embodiments, the width 45/55 of each minor tie 44/54 is between about 0.5 and 3 millimeters wide. In particular embodiments, the minor tie is less than 3 millimeters wide, more particularly less than 2 millimeters wide, and still more particularly less than 1 millimeter wide. In particular embodiments, the width 45/55 of each major tie 42/52 is at least three times greater that the width 45/55 as each minor tie 43/53.
[0046] In another aspect of the invention, a dispenser 11 contains the plurality 10 of integrally interconnected wipes described above. The dispenser 11 and plurality 10 of wipes are together adapted to provide pop-up dispensing of wipes. Examples of dispensers suitable for use in conjunction with particular embodiments of the present invention include those described in U.S. Pat. No. 6,523,690 B1; U.S. Pat. App. Pub. 2014/0174974 A1; U.S. Pat. App. Pub. 2014/0001072 A1; and U.S. Pat. App. Pub. 2014/0374432 A1, each of which is hereby incorporated by reference to the extent not inconsistent herewith.
[0047] The dispenser 11 can include any suitable number of individual wipes depending upon the dispenser size and intended end use. For example, the dispenser can be configured to include a stack of wipes which can include at least about 5 wipes and desirably from about 8 to about 320 individually wipes, and more desirably from about 16 to about 64 wipes. The size and shape of the stack of wipes is dependent upon the size and shape of the dispenser and vice versa.
[0048] In particular embodiments, the plurality 10 of integrally interconnected wipes are arranged in a stack 13, as representatively illustrated in
[0049] The purpose, in particular embodiments, of the major ties described above is to deliver enhanced pop-up dispensing. The purpose of the minor ties is to facilitate commercial manufacture of the wipes. Specifically, it is common for wipe products to be formed as very long, continuous webs or sheets. Examples of suitable materials are described below. After the continuous sheet is formed, the sheet typically travels through additional processing steps, including, for example, drying, calendaring, embossing, wrinkle removing, slitting, perforating, and winding. During such additional processing steps, the continuous sheet generally is under both longitudinal and lateral tension. If adjacent wipes were integrally interconnected only by the major ties described herein, consistent, reliable handling of the continuous sheet would be compromised, because the major ties alone would not provide sufficient strength and integrity to the continuous sheets for commercial, high-speed, tensioned processing. Introduction of the minor ties as described herein allows for more robust handling of the continuous sheets during the manufacturing. In this way, the major and minor ties together allow for the practical commercial manufacture of an optimized pop-up dispensing experience.
[0050] Another way to articulate key features of particular embodiments of the invention is as follows. The web 12 includes a plurality of transverse intermittent cut lines (e.g., 40, 50). The cut lines are spaced apart from each other in the longitudinal direction 20 to define individual wipes (e.g., 30/32/34). Each cut line (e.g., 40/50) defines a major tie (e.g., 42/52) and a minor tie (e.g., 44/54), and the major tie and the minor tie are on opposite sides of the longitudinal centerline 21. The width 43 of the major tie 42 is greater than the width 53 of the minor tie. The major ties (e.g., 42/52) in longitudinally successive pluralities of cut lines (e.g., 40, 50) are on alternating right and left sides (15, 17) of the longitudinal centerline 21. In this way, a plurality of major ties are arranged on the web 12 in a “zig-zag” pattern in the longitudinal direction, as representatively illustrated in
[0051] The plurality 10 of wipes integrally interconnected as heretofore described can in particular embodiments deliver an improved dispensing experience. As the leading corner 62 of a wipe at the top of a stack 13, such as, referring to
[0052] Referring to
[0053] As representatively illustrated in
[0054] For example, referring to
[0055] In another example, referring to
[0056] In particular embodiments, such as those representatively illustrated in
[0057] The stack has a width 113 measured in the transverse direction 122. The right-side connection 142 has an effective width 143 extending in the transverse direction 122, and the left-side connection 152 has an effective width 153 extending in the transverse direction 122. The “effective width” is the distance in the transverse direction between the two furthest-apart points of connectivity that connect immediately successive wipes in a stack within a single side 115, 117 of the stack 13. Thus, in no case can the effective width of a connection be greater than half of the stack transverse width 113. Preferably, the effective width of a connection is considerably less than half of the stack transverse width. For example, in particular embodiments, referring to
[0058] In particular embodiments, an entirety of each right-side connection 142 in the stack 13 is closer to the stack right end 114 than to the longitudinal centerline 121 of the stack 13, and an entirety of each left-side connection 152 in the stack 13 is closer to the stack left end 116 than to the longitudinal centerline 121 of the stack 13, as representatively illustrates in
[0059] In particular embodiments, a dispenser 11 contains the plurality of interconnected wipes 10. The dispenser 11 and plurality of wipes 10 are together adapted to provide pop-up dispensing of the wipes. The dispenser 11 defines a dispensing orifice 111, through which wipes can be extracted from the dispenser 11. In particular embodiments, the dispensing orifice 111 is centered in the transverse direction, as in the examples of
[0060] In another aspect, the invention relates to a method of dispensing wipes. The method includes providing a stack of wipes 13, as representatively illustrated in
[0061] Each wipe in the stack 13 is generally rectangular in shape, and each wipe defines four corners. For example, referring to
[0062] Referring to the exemplary embodiment outlined in
[0063] In particular embodiments, the presented corner 90 of the leading wipe 234 and the presented corner 92 of the succeeding wipe 232 originate from opposite sides 115/117 of the stack 13. Preferably in such embodiments, each wipe in the stack 13 is connected to at least one other wipe on only one of the right side 115 and the left side 117 of the stack via a connection. In other words, each wipe in the stack is connected to at least one other wipe on either the right side 115 of the stack 13 or the left side 117 of the stack 13, but not on both sides. Immediately successive connections 142, 152 in a stacked direction 119 alternate from the right side 115 to the left side 117, as suggested by the embodiments shown in
[0064] For example, referring to
[0065] In other embodiments, the presented corner 90 of the leading wipe 232 and the presented corner 92 of the succeeding wipe 232 each originate from the same side of the stack (such as from the right side 115, or from the left side 117). Preferably in such embodiments, each wipe in the stack 13 is connected to at least one other wipe on only the first side 115 of the stack via a connection. Immediately successive connections 143a, 143b in a stacked direction 119 are all on the first side 115 of the stack, as suggested by the embodiments shown in
[0066] For example, referring to
[0067] The structures and methods described above can in particular embodiments deliver a number of useful features. First, the mechanism of dispensing just described can present a corner of the next wipe in the stack to the user, which offers certain accessibility benefits in certain applications. Second, due to the way the wipe tips to the side, or “deforms” into a general “diamond-like” shape, the variability in dispensing force can be better controlled, making dispensing more reliable and predictable (such as by reducing the undesirable “fall backs” or “multiples” described earlier). Third, the force required to dispense a wipe is in particular embodiments of the present invention lower than in many conventional configurations, which desirably allows more wipes to be dispensed from a dispenser before the dispenser (often made of relatively light polymers) begins to lift off the surface on which it rests. Finally, the pop-up dispensing configuration described herein reduces tearing of the wipes, due to the fact, it is believed, that vector forces are oriented “diagonally” from corner to corner, as opposed to purely in a machine direction or cross-machine direction (one or both of which may be weaker than the “diagonal” direction).
[0068] Without wishing to limit the scope of the invention as claim, it is theorized that, in particular embodiments of the invention, rotation of the succeeding wipe of about 45 degrees (sheet 32 in
[0069] Materials suitable for the wipes of the present invention are well known to those skilled in the art. Wipes, such as pre-moistened wipes, can be made from, for example, meltblown, coform, air-laid, bonded-carded, or hydroentangled materials, high wet-strength tissue, or combinations thereof, such as layered combinations thereof. The wipes can comprise synthetic or natural fibers or combinations thereof. Wipes suitable for use in conjunction with the present invention can contain a liquid which can be any solution that can be absorbed into the wipes, thus making them “wet wipes.” The liquid contained within the wet wipes can include any suitable components which provide the desired wiping properties. For example, the components can include water, emollients, surfactants, preservatives, chelating agents, pH buffers, fragrances, or combinations thereof. The liquid can also contain lotions, ointments, and/or medicaments. The amount of liquid contained within each wet wipe can vary depending upon the type of material being used to provide the wet wipe, the type of liquid being used, the type of container being used to store the stack of wet wipes, and the desired end use of the wet wipe. Generally, each wet wipe can contain from about 150 to about 600 weight percent and desirably from about 200 to about 400 weight percent liquid based on the dry weight of the wipe for improved wiping. Examples of wipe substrates suitable for use in conjunction with the present invention include U.S. Pat. Nos. 5,508,102 A, 7,585,797 B2, and 8,257,553 B2.
[0070] While the invention has been described in detail with respect to the specific aspects thereof, it will be appreciated that those skilled in the art, upon attaining an understanding of the foregoing, may readily conceive of alterations to, variations of, and equivalents to these aspects. Accordingly, the scope of the present invention should be assessed as that of the appended claims.