|Publication number||US3700138 A|
|Publication date||Oct 24, 1972|
|Filing date||Nov 19, 1970|
|Priority date||Nov 19, 1970|
|Publication number||US 3700138 A, US 3700138A, US-A-3700138, US3700138 A, US3700138A|
|Inventors||Nelson Howard N|
|Original Assignee||Kimberly Clark Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (4), Referenced by (35), Classifications (17)|
|External Links: USPTO, USPTO Assignment, Espacenet|
United States Patent Nelson 15 3,700,138 51 Oct. 24, 1972  METHOD OF DISPENSING INTERFOLDED SHEET MATERIAL AND PACKAGE THEREFOR  Inventor: Howard N. Nelson, Neenah, Wis.
 Assignee: Kimberly-Clark Corporation,
 Filed: Nov. 19, 1970 21 Appl. No.: 91,110
 US. Cl ..221/51, 206/57 R, 221/53  Int. Cl. ..B65h 29/66  FieldofSearch ..306/57R,58;22l/38,45, 48-51,
 References Cited UNITED STATES PATENTS Nelson .,....2'2 1 I51 2,656,916 10/1953 Henderson ..221/51 X 2,033,582 3/1936 Materno ..221/45 2,965,224 12/1960 Harwood ..206/57 R Primary Examiner-Samuel F. Coleman Assistant ExaminerLarry Martin Attorney-Daniel J. l-lanlon, Jr., William D. Herrick and Raymond J. Miller .[57 ABSTRACT lnterfolded sheet material such as facial tissues having a rectangular shape are folded upon themselves about an. aXis corresponding generally to the longitudinal centerline of an exterior tissue. The clip is then disposed in a cylindrical or other similar shaped package adapted to stand on end, and the individual tissuesmay be dispensed longitudinally.
4 Claims, 5 Drawing Figures PATENTED00124 m2 SHEET 1 [IF 2 METHOD OF DISPENSING INTERFOLDED SHEET MATERIAL AND PACKAGE THEREFOR DESCRIPTION OF THE INVENTION My invention relates generally to the packaging of interfolded sheet material. More particularly it concerns the packaging of larger rectangular, interfolded sheet materials such as facial tissues, paper towels and the like, so as to present an attractive appearance, provide easy tissue dispensing and require substantially reduced surface area for storage.
Interfolded sheet material of this type have long been available in packaged form, the packages usually having a base length equalling the width of the sheets and a base width equalling about one-third or one-half the length of the sheets (depending upon the fold of the sheets). The sheets are usually folded either into two approximately equal folds (hereafter referred to as two-fold material), or into three folds (referred to as Z-fold material). There are certain other forms of interfolded sheets in which the sheets are folded otherwise than above described, but those described typify the most common form. For example, one additional form includes bonding of adjacent sheets; my invention is not particularly suited for the packaging of such bonded sheets since it does not result in sequential rupturing of these bonds.
In my earlier patents, U.S. Pat. No. 2,611,482 and U.S. Pat. No. 3,369,700, I have disclosed packages for dispensing tissues wrapped about an axis proximate the centerline of the lengthwise folded dimension of the bottom tissue. While these latter packages reduced the surface area required for storage, further reduction consistent with product quality and attractive appearance remained a desideratum.
It is, therefore, a primary object of this invention to provide a method and package for dispensing interfolded tissues that require significantly less surface area for storage than known packages.
Related to that objective, it is further an object of my present invention to provide such a method and package that results in a compact, attractive, and convenient dispenser.
Other objects and advantages of my invention will be apparent to those skilled in this art upon reference to the detailed description below and to the drawings in which,
FIGS. 1 to 3 are schematic illustrations of successive steps in the preparation of the tissue stack or clip in two-fold form for packaging.
FIG. 4 is a perspective illustrating one form of package opened for sheet dispensing purposes.
FIG. 5 shows another, particularly economical package.
In the known packaging arrangements previously described there are provided dispensers that are entirely suitable for smaller tissues. However, for larger tissues and other interfolded sheets, the space required for receiving and supporting the package during use often presents a problem. For example, the most common dispenser package containing flat interfolded tissues covers a surface of about 46 square inches in dispensing position. The improved dispenser disclosed in my previously mentioned patents reduces this area to about 19 square inches for a clip of 120-200 tissues. By virtue of my present invention it is possible to utilize about the same area for a clip of 400 tissues or more. The tissues are accessible one-by-one from a convenient and compact package.
Turning now to the drawings,
FIG. 1 schematically illustrates a more or less conventional stack of two-fold interfolded sheet material such as crepe tissue paper, the stack being disposed in an on-edge position. As shown the stack comprises a first sheet A comprising folds 20 and 22 which are joined at the top edge of the stack as indicated at 24; a second sheet B having folds 26 and 28 joined at the bot,- tom edge of the stack as indicated at 30, the folds 26 and 28 embracing the fold 2,2 of the first sheet; and a third sheet C having the folds 32 and 34 joined at the top edge of the stack as indicated at 36, the fold 32 lying face-to-face with the fold 22 and also being embraced between the folds 26 and 28 of the second sheet. Additional sheets are assembled in the interfolded manner indicated to provide the number of sheets desired in the stack.
To prepare this stack of interfolded tissues for packaging according to the present invention, the first fold 20 of an exterior fold (at either face of the pack) is displaced longitudinally so as to project from the endof the stack as indicated in FIG. 2. It will be understood that by exterior fold I mean the outermost fold on either major clip surface. The fold 26 is thereby at least partially exposed, but the exterior sheet fold 22 remains substantially in place with the fold 32 between the folds 26 and 28 of the second sheet. From the condition illustrated in FIG. 2, the stack is then folded upon itself lengthwise about the major orlongitudinal axis of the displaced sheet, for example, by means of bar 38 illustrated in FIG. 3. The displaced portion 40 of the first sheet is also foldedupon itself and projects outwardly from the center of the stack 41 in its folded form. This extended leader portion is flattened down on the ends of the sheets for packaging so as to be readily available when the package is opened.
The arrangement illustrated in FIG. 3 lends itself to packaging in many diverse and attractive containers. I prefer to use a cylinder as illustrated in FIG. 4 with an opening 39 proximate the leader portion 40 for dispensing of the tissues. In this form the package may be placed on end with the result that it is in the stable position requiring the least possible surface area for storage and, at the same time, the tissues are readily available from the top of the container. The container may be formed from paperboard or other material such as plastic or metal offering protection for the contents as well as maintaining its integrity.
FIG. 5 illustrates a packaging embodiment that is particularly advantageous in terms of cost. The folded clip 41 is wrapped with a paper or other protective wrap 42, the longitudinal ends of which are subsequentlyclosed by means of adhesive tape 44. Perforations 46 provide for easy opening of the wrap, after which the roll may be provided with end closures or placed in any convenient dispenser such as that shown in FIG. 4. Alternatively a tear string may be used instead of the strip formed by perforations 46.
For Z-folded tissues, the procedure is substantially the same. The clip or stack is formed as illustrated and described in my aforementioned U.S. Pat. No. 2,61 1,482, particularly with reference to FIGS. 9-1 1. It
is then treated in the manner'described immediately above by displacing a portion of the top tissue, folding the stack, and putting it into a cylindrical or similar shaped container having a dispensing opening in the top.
Although dispensers of such shapes have been used for continuous rolls of materials, I believe that my invention provides the first such dispensers for interfolded sheets. While the space advantages of my unique dispenser may be readily appreciated,'. it is to be emphasized that no sacrifice in convenience or tissue accessibility has been made. Contrary to what was expected, I have found that each tissue is delivered in succession with a portion of the next extending outside the dispenser for easy access. It is preferred that the folded clip 41 be somewhat compressed as by means of inwardly projecting wrap portion 48 in FIG. 5 to provide a smaller package. Tearing the tape allows the clip to expand slightly for easier tissue withdrawal. As each tissue is dispensed, the clip expands further providing particularly easy tissue withdrawal and reducing the number of torn tissues. In addition the dispensing clip may be compressed to a degree less than in conventional packaging thus reducing the tendency to form deep wrinkles.
While my invention has been above described with respect to specific embodiments, it will be apparent to those skilled in this art that various modifications may be made therein without departing from its spirit or scope. For example, the described dispensing arrangement may be reversed to cause dispensing to take place from the outside of the folded stack rather than from the center thereof. For most purposes, however, it is preferred that dispensing be from the center so that the outermost tissues serve as protection for the others,
particularly where the dispensers are used in machine shops or other locations of likely contamination. Also, while the container cross section has been illustrated as circular, it may take other similar forms such as a hexagon, for example, which provide an attractive appearance. In further modification, the container may be provided with a top tab opening adhesively attached to the leader portion of the first tissue so that opening the dispenser automatically presents that tissue for the user. These and other such modifications are intended to be embraced within my invention except as it may be limited by the claims which follow.
1. A dispensing package of interfolded sheet material comprising a stack of rectangular interfolded sheets folded upon itself about a longitudinal axis of an exterior sheet and having an exterior sheet partially displaced longitudinally from the stack, and a container for said folded stack having a wall portion surrounding at least a portion of the stack and maintaining its longitudinally folded shape, said wall portion including an expandable inwardly projecting portion for easier tissue withdrawal.
2. The dispensing package of claim 1 wherein said partially displaced exterior sheet is the one about which the stack is folded.
3. The dispensing package of claim 1 wherein said container also comprises a top portion and a bottom portion, said top portion being adapted to provide an opening therein through which the sheets may be dis ensed- The dispensing package of claim 1 wherein said wall portion includes means for tearing it longitudinally to allow expansion of said inwardly projecting portion.
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|U.S. Classification||221/51, 206/555, 229/87.5, 206/451, 221/53|
|International Classification||A47K10/24, B65D25/52, B65D25/38, A47K10/42, B65D83/08|
|Cooperative Classification||A47K10/42, B65D83/0894, B65D25/52, A47K2010/428|
|European Classification||A47K10/42, B65D83/08H, B65D25/52|