Personal care articles are generally packaged into wrapping material which can be easily opened by the user of the personal care article. While the wrapping material can be easily opened, it should also protect the personal care article from dirt, dust, moisture, microorganisms or other contamination. Particular care should be taken to prevent contamination of those personal care articles which are intended to be inserted into the body of the user. For personal care articles which have been treated with a lotion, a fragrance, a medicament or other treatment agent, the wrapping material should also protect these treatment agents and prevent loss of the treatment agent through migration of the treatment agent through the wrapping material and away from the personal care article.
In order to prevent contamination and/or prevent loss of a treatment agent, personal care articles, such as tampons which are meant to be inserted digitally as opposed to insertion via an applicator, have employed tight wrappers wherein each tampon is heat sealed within a tubular sleeve of wrapping material. The wrapping material can serve at least three functions. The first function can be to prevent dirt or other foreign material from contaminating the tampon prior to use. The second function can be to maintain the presence of a treatment agent within the tampon and prevent migration of the treatment agent through the wrapping material and away from the tampon. Thirdly, as products such as tampons generally comprise absorbent material, they tend to soak up ambient moisture and deform. The third function of the wrapper, therefore, can be to maintain the shape of the tampon and prevent deformation.
The wrapper of a tampon, can be tightly wrapped around the tampon which can, in turn, increase the frictional forces existing between the tampon and the inside surface of the wrapper. An increase in the frictional forces can result in a wrapper which can be difficult to remove from around the tampon. To provide a mechanism which can allow for easier removal of the wrapper from around the tampon, the wrapping material can be weakened, such as, for example, through the use of a line of weakness. When opening the wrapper of the tampon, the line of weakness can be manipulated by the user of the tampon which can provide an easier opening to the tampon.
The line of weakness, however, can provide a pathway for dirt, dust, moisture, microorganisms or other contamination to enter the tampon or a treatment agent to migrate away from a tampon. There remains a need for a wrapper for a tampon which can be easily opened by a user and which does not expose the tampon to contamination and/or expose the tampon to loss of a treatment agent. There remains a need for a wrapping material for a tampon which can withstand the radial force exerted on the wrapping material by way of the natural expansion of the tampon but which can give way to the stress of shear forces and longitudinal bending forces which can be exerted on the wrapping material by way of a user of the tampon opening the wrapping material to gain access to the tampon.
In various embodiments, a wrapping material for a tampon can comprise, in a laid-flat configuration, a longitudinal direction, a lateral direction, a first lateral edge, a second lateral edge, a zone of overlap and a line of weakness located within the zone of overlap. In various embodiments, the zone of overlap can further comprise a first fold and a second fold. In various embodiments, the line of weakness can be located between the first and second folds. In various embodiments, the line of weakness can be located between one of the first or second folds and one of the first or second lateral side edges. In various embodiments, the wrapping material can be cellophane. In various embodiments, the wrapping material can comprise two pieces of material bonded together. In various embodiments, the wrapping material can comprise a single layer of material.
In various embodiments, a wrapped tampon comprising a tampon and a wrapping material, wherein the wrapping material comprises a zone of overlap and a line of weakness associated with the zone of overlap. In various embodiments, the zone of overlap can be a z-fold configuration comprising an inner layer, an outer layer, and a middle layer located between the inner layer and the outer layer. In various embodiments, the line of weakness can be located on the inner layer of the z-fold configuration of the zone of overlap. In various embodiments, the line of weakness can be located on the outer layer of the z-fold configuration of the zone of overlap. In various embodiments, the line of weakness can be located on the middle layer of the z-fold configuration of the zone of overlap. In various embodiments, the zone of overlap can encircle the circumference of the tampon. In various embodiments, the zone of overlap can encircle the tampon in an insertion zone of the tampon. In various embodiments, the zone of overlap can encircle the tampon in a withdrawal zone of the tampon. In various embodiments, the zone of overlap can encircle the tampon in an intermediate zone of the tampon. In various embodiments, the zone of overlap can encircle the tampon at least partially in an insertion zone and at least partially in an intermediate zone of the tampon. In various embodiments, the zone of overlap can encircle the tampon at least partially in a withdrawal zone and at least partially in an intermediate zone of the tampon. In various embodiments, the wrapping material can comprise a single layer of material. In various embodiments, the wrapping material can comprise two pieces of material bonded together.
The present disclosure is generally directed towards a wrapping material for a tampon. The wrapping material can reduce or prevent contamination of the tampon and/or can reduce or prevent loss of a treatment agent from the tampon. The present disclosure is also generally directed towards a tampon wrapped in a wrapping material which can experience a reduction in the contamination of the tampon and/or a reduction in the loss of a treatment agent from the tampon.
Referring to the Figures, illustrated in
As illustrated in
In various embodiments, the wrapping material 22 can be a single layer of material or can be a laminate of two or more materials which can be combined into a single layer of wrapping material 22. In various embodiments, the wrapping material 22 can be formed from two pieces of material which can be bonded together, such as, for example, by bonding a lateral edge of one piece of material to a lateral edge of the other piece of material, to form a single wrapping material 22. The term “bonded” refers herein to the joining, adhering, connecting, attaching, or the like, of two elements. Two elements will be considered bonded together when they are joined, adhered, connected, attached, or the like, directly to one another or indirectly to one another, such as when each is directly bonded to intermediate elements. The bonding can occur via adhesive, pressure bonding, thermal bonding, ultrasonic bonding, and/or welding, or any other means deemed suitable.
The wrapping material 22, whether a single layer of material, a laminate of two or more materials combined into a single layer, or two pieces which have been bonded together to form a single wrapping material 22, can have longitudinal side edges, 24 and 26, and when the wrapping material 22 is wrapped around the tampon 12, one of the longitudinal side edges, such as longitudinal side edge 24, can overlap the other longitudinal side edge, such as longitudinal side edge 26, to produce a longitudinal seam 28. The amount of overlap (i.e., the width of the longitudinal seam 28 in the lateral direction 20) can be any amount deemed suitable to provide a longitudinal seam 28 which can remain in a sealed configuration until disrupted by a user of the tampon 12. As illustrated in
To provide a user with a wrapped tampon 12 which can be easy to open, the wrapping material 22, whether a single layer of material, a laminate of two or more materials combined into a single layer, or two pieces which have been bonded together to form a single wrapping material 22, can be provided with a line of weakness 34. The line of weakness 34 can be a line which can run through the wrapping material 22 and can be composed of a row of weak points which can be uniform, or different, in size and type, so that the wrapping material 22 can comprise two parts connected by the line of weakness 34. The line of weakness 34 can also be composed of a row of weak points which can have any desired geometry, such as, for example, arrows, semi-circles, circles, rectangles, etc. The line of weakness 34 can be linear, curvy, wavy, zig-zag or any other configuration as deemed suitable. The stability of the line of weakness 34 can be matched to the desired material properties of the wrapping material 22. Matching the stability of the line of weakness 34 to the material properties, such as, for example, the flexibility, of the wrapping material 22 can provide for a wrapped tampon 12 wherein the user does not have to expend any great force to destroy the line of weakness 34. Additionally, matching the stability of the line of weakness 34 to the material properties of the wrapping material 22 can avoid inadvertent destruction of the line of weakness 34. In various embodiments, the line of weakness 34 can be formed by perforations and/or a reduced material thickness in the area of the line of weakness 34. In various embodiments such as when the wrapping material 22 can be formed by bonding two pieces of material together, the line of weakness 34 can be spaced apart, discrete areas of bonding, such as, for example, but not limited to, adhesive, ultrasonic or thermal bond points, etc. In various embodiments, more than one line of weakness 34 can be present in the wrapping material 22. For example, at least two lines of weakness 34 can be present in the wrapping material 22. Each line of weakness 34 can at least partially encircle the circumference of the tampon 12, however, each line of weakness 34 need not fully encircle the tampon 12. In such an embodiment, each line of weakness 34 can be offset from each other line of weakness 34 in the longitudinal direction 18 as the wrapping material 22 encircles the tampon 12. In various embodiments, the line of weakness 34 can be present in a non-uniform distribution, such as, for example, the line of weakness 34 can have a non-uniform strength relative to either shear or radial expansion stresses. For example, a tampon 12 can be compressed in such a manner that the tampon 12 may naturally attempt to expand in a non-uniform manner. The line of weakness 34 of the wrapping material 22 can be arranged as deemed suitable to prevent breakage of the line of weakness 34 following any expansion of the tampon 12.
To protect the tampon 12 within the wrapping material 22 from dirt, dust, moisture, microorganisms, or other contamination which may enter through the line of weakness 34 and/or to prevent the loss of a treatment agent which may exit through the line of weakness 34, a zone of overlap 36 can be created in the wrapping material 22, whether a single layer of material, a laminate of two or more materials combined into a single layer, or two pieces which have been bonded together to form a single wrapping material 22. The zone of overlap 36 can be a location of the wrapping material 22 wherein a portion of the wrapping material 22 can overlap another portion of the wrapping material 22. The zone of overlap 36 can encircle the tampon 12 at any desired location of the wrapped tampon 12 as will be described herein. It is to be understood that the zone of overlap 36 can be created by a selective folding and overlapping of the wrapping material 22 rather than fully encircling and enclosing the tampon 12 in two or more layers of wrapping material 22 for the entire longitudinal length of the tampon 12. In various embodiments, the zone of overlap 36 can be a location of the wrapping material 22 wherein a first portion of the wrapping material 22 can be folded over a second portion of the wrapping material 22 creating at least two layers of wrapping material 22 in the zone of overlap 36. In various embodiments, the zone of overlap 36 can be a location of the wrapping material 22 wherein a first portion 22 of the wrapping material 22 can be folded over a second portion of the wrapping material 22 and a third portion of the wrapping material 22 can be folded over the first portion of the wrapping material 22 creating at least three layers of wrapping material 22 in the zone of overlap 36. Such a folded configuration can resemble a z-fold configuration 38 in the wrapping material 22 (such as illustrated in
When a portion of the wrapping material 22 is folded over another portion of the wrapping material 22, a fold can be created in the wrapping material 22.
The wrapping material 22 can be tightly wound about the tampon 12 and can, therefore, have substantially the same dimensions, in the wrapped configuration, as the tampon 12. In various embodiments, the zone of overlap 36 can be located at substantially the midpoint of the longitudinal length of the wrapping material 22 in the wrapped configuration about the wrapped article 10 (such as illustrated in
In various embodiments, the longitudinal length of the tampon 12 can be divided into zones, such as an insertion zone which will enter the body first and which can be about one-third of the longitudinal length of the tampon 12, a withdrawal zone which will enter the body last and can be about one-third of the longitudinal length of the tampon 12, and an intermediate zone which can be about one-third of the longitudinal length between the insertion zone and the withdrawal zone. In various embodiments, the zone of overlap 36 of the wrapping material 22, in a wrapped configuration about a tampon 12, can be positioned at least partially encircling the insertion zone of the tampon 12. In various embodiments, the zone of overlap 36 of the wrapping material 22, in a wrapped configuration about a tampon 12, can be positioned at least partially encircling the withdrawal zone of the tampon 12. In various embodiments, the zone of overlap 36 of the wrapping material 22, in a wrapped configuration about a tampon 12, can be positioned at least partially encircling the intermediate zone of the tampon 12. In various embodiments, the zone of overlap 36 of the wrapping material 22, in a wrapped configuration about a tampon 12, can be positioned at least partially encircling the insertion zone and at least partially encircling the intermediate zone of the tampon 12. In various embodiments, the zone of overlap 36 of the wrapping material 22, in a wrapped configuration about a tampon 12, can be positioned at least partially encircling the withdrawal zone and at least partially encircling the intermediate zone of the tampon 12.
In various embodiments, the zone of overlap 36 can have any longitudinal length as desired when in the folded configuration such as illustrated in
To reduce contamination of the tampon 20 and/or to prevent loss of a treatment agent, the line of weakness 34 can be associated with the zone of overlap 36 and can be located on any portion and in any of the overlapping layers of wrapping material 22 incorporated into the zone of overlap 36. In various embodiments, the zone of overlap 36 can be folded into a z-fold configuration 38 and can have three layers of overlapping wrapping material 22 incorporated into the zone of overlap 36. The three layers of the overlapping wrapping material 22 can include an inner layer 44 located closest to the tampon 12, an outer layer 48 located furthest from the tampon 12, and a middle layer 46 located between the inner layer 44 and the outer layer 48. In various embodiments, the line of weakness 34 can be located on the inner layer 44 of the wrapping material 22 in the zone of overlap 36. In various embodiments, the line of weakness 34 can be located on the middle layer 46 of the wrapping material 22 in the zone of overlap 36. In various embodiments, the line of weakness 34 can be located on the outer layer 48 of the wrapping material 22 in the zone of overlap 36. In various embodiments, the line of weakness 34 can be located on fold 40 or fold 42 of the wrapping material 22. As the line of weakness 34 can be located in a portion of the wrapping material 22 which is overlapping another portion of the wrapping material 22, i.e., the zone of overlap 36, the pathway for dirt, dust, moisture, microorganisms or other contaminants and/or the pathway for migration outward of a treatment agent can be obstructed and can reduce and/or eliminate the contamination of the tampon 12 and/or reduce or eliminate the loss of a treatment agent associated with the tampon 12 within the wrapping material 22.
In various embodiments, the zone of overlap 36 can remain in the folded configuration about the tampon 12 by utilizing the expansion capability of the tampon 12 which can increase the forces exerted upon the wrapping material 22. A tampon 12 can be composed of a highly compressed absorbent material. The absorbent material can have a natural tendency to rebound from the compression undergone during the manufacturing process. The rebounding of the tampon 12 from a highly compressed configuration in the manufacturing process to a slightly less compressed configuration in the wrapping material 22 can direct the expansion forces of the absorbent material of the tampon 12 in a direction towards the wrapping material 22 which can push the overlapping layers of the wrapping material 22 together and maintain the zone of overlap 36.
In various embodiments, the zone of overlap 36 can remain in the folded configuration by bonding at least two of the layers of wrapping material 22 together such as, for example, but not limited to, through ultrasonic bonding, thermal bonding or adhesives or any other means deemed suitable. The bonding of the at least two layers of wrapping material 22 together can occur along the full circumference of the zone of overlap 36 around the tampon 12 or can occur intermittently along the circumference of the zone of overlap 36 around the tampon 12. In various embodiments, the bonding of the at least two layers of wrapping material 22 can occur in a single location of the zone of overlap 36. In various embodiments, the inner layer 44 and the middle layer 46 can be bonded together. In various embodiments, the middle layer 46 and the outer layer 48 can be bonded together. In various embodiments, the inner layer 44 and the middle layer 46 can be bonded together and the middle layer 46 and the outer layer 48 can be bonded together.
To open the wrapping material, the user of the tampon 12 can grasp the wrapped article 10 at the insertion end 14 with one hand and at the withdrawal end 16 with the other hand and twist the wrapping material 22 in opposite directions. The twisting motion can disrupt the line of weakness 34 and the user can separate the resultant two pieces of wrapping material 22 from each other. In various embodiments, indices can be incorporated on the wrapping material 22 to provide notice to the user as to locations where to grasp the wrapped article 10. Such indices can include, but are not limited to, text, graphics, changes in surface topography of the wrapping material 22, and inclusion of a surface treatment to change increase the adhesion or friction of the wrapping material 22 to a user's fingers.
Referring to
The wrapping material 22 can be configured to have a zone of overlap 36 prior to wrapping the wrapping material 22 about the tampon 12. As described above, the zone of overlap 36 can include at least two folds, such as folds 40 and 42.
Referring to
As described above, when the wrapping material 22 is wrapped about a tampon 12, a longitudinal side edge, such as longitudinal side edge 24 can overlap the other longitudinal side edge, such as longitudinal side edge 26, to create the longitudinal seam 28 (as illustrated in
The wrapping material 22 can be configured to have a zone of overlap 36 prior to wrapping the wrapping material 22 about the tampon 12. As described above, the zone of overlap 36 can include at least two folds, such as folds 40 and 42.
In the interests of brevity and conciseness, any ranges of values set forth in this disclosure contemplate all values within the range and are to be construed as support for claims reciting any sub-ranges having endpoints which are whole number values within the specified range in question. By way of hypothetical example, a disclosure of a range of from 1 to 5 shall be considered to support claims to any of the following ranges: 1 to 5; 1 to 4; 1 to 3; 1 to 2; 2 to 5; 2 to 4; 2 to 3; 3 to 5; 3 to 4; and 4 to 5.
The dimensions and values disclosed herein are not to be understood as being strictly limited to the exact numerical values recited. Instead, unless otherwise specified, each such dimension is intended to mean both the recited value and a functionally equivalent range surrounding that value. For example, a dimension disclosed as “40 mm” is intended to mean “about 40 mm.”
All documents cited in the Detailed Description are, in relevant part, incorporated herein by reference; the citation of any document is not to be construed as an admission that it is prior art with respect to the present invention. To the extent that any meaning or definition of a term in this written document conflicts with any meaning or definition of the term in a document incorporated by references, the meaning or definition assigned to the term in this written document shall govern.
While particular embodiments of the present invention have been illustrated and described, it would be obvious to those skilled in the art that various other changes and modifications can be made without departing from the spirit and scope of the invention. It is therefore intended to cover in the appended claims all such changes and modifications that are within the scope of this invention.