MXPA97006788A - Nucleo-rolled rolls and methods to make and use - Google Patents

Abstract

The present invention relates to a method for treating coreless rolls of absorbent paper product to make it easier for a user to center a winding axis of the coreless roll with respect to a spout, comprising the steps of: ) placing a tool on one side of at least one side of the coreless roll so that the tool is essentially centered with respect to the axis of winding the roll, and (b) pressing the tool on the side of the roll to form a visible depression on the side of the roll that is centered with respect to the winding axis of the roll, said tool is moistened before the step of pressing the tool on the roll side is completed, so the maintenance personnel will find it easier to center the roll with respect to the roll. to an assortment

Description

NOLLED ROLLS WITHOUT NUCLEUS AND METHODS TO MAKE THEM AND USE THEM BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to the field of commercial and consumer absorbent paper products, which include toilet tissue and paper towels. More specifically, this invention relates to an improved coreless roll of an absorbent paper product that is formed to be easily mounted on a spout. 2. Description of Previous Art Consumer and commercial absorbent paper products such as paper toilet tissue and paper towels are typically dispensed and dispensed in the form of a roll, and almost always include a hollow cylindrical core around which the product is wrapped. . The core is usually some kind of cardboard, which is glued together and to the product so that the core remains intact and the product is not separated from the core. The product is then stocked by mounting the roll on a spindle, such as can be found in a paper roll dispenser for the bathroom toilet that passes through or otherwise penetrates the interior space of the core. Some dispensers include plugs that penetrate the hollow space within the core for only a limited extent, as demonstrated in U.S. Patent Nos. 390,084 and 2,905,404 to Lañe and Simmons, respectively.

Recently, core rolls of tissue paper for the toilet, which are rolled through the full diameter of the roll, have appeared on the market mainly in Europe. There are some advantages and disadvantages associated with coreless rolls. Coreless rolls are ecologically superior to core rolls because no adhesives or disposable materials are used to make the product. In addition, more product can be provided in the space that could otherwise have been occupied by the kernel. Rolls with core are more expensive to manufacture than coreless rolls due to the expense of making the cores and joining the cores to the product. In addition, coreless rolls have the advantage of being less subject to looting in commercial places due to their inherent incompatibility with conventional jets.

On the other hand, there are problems of assortment with the coreless rolls that until now have been difficult to overcome.

Conventional dispensers for coreless rolls typically include an enclosed support surface on which the roll is held when turning, and an opening through which the product is passed. Even when functional, the jets have some undesirable characteristics, including a lack of ability to control drag resistance for product removal, the fact that the product actually touches the interior of the dispenser, which may be considered non-sanitary by some. consumers, and a lack of ability to provide an excess of 180 degrees to the product by the consumer.

Many of the above-described problems will be overcome if there is a dispenser for mounting a roll without a core to rotate about its axis, as do core roll dispensers. Unfortunately, such a pump has yet to be successfully developed. One of the problems that remains in the development path of such a spout involves how the coreless roll is centered in the spout. If the roll is not centered, a rotating imbalance will be created when the roll is rotated. Also, the roll will be prevented from spilling the product until the expiration in the event that its winding axis is not precisely centered on the spout. However, since the typical coreless roll has unbroken and flat side surfaces, it is difficult to locate the location of the winding shaft.

It is therefore clear that there is a need for an improved system, a method and a product to allow an effective assortment of the coreless rolls of consumer and commercial absorbent paper products.

SYNTHESIS OF THE INVENTION Therefore, it is an object of the invention to provide an improved system, method and product to enable effective assortment of the coreless rolls of consumer and commercial absorbent paper products.

According to a first aspect of the invention, a method for treating a coreless roll of an absorbent paper product so as to make it easier for a user to center a winding shaft of the coreless roll with respect to a spout includes the steps of: (a) placing a tool on one side of at least one side of the coreless roll so that the tool is essentially centered with respect to the winding axis of the roll; and (b) pressing the tool on the side of the roll to form a visible depression on the side of the roll that is centered with respect to the winding axis of the roll, so maintenance personnel will find it easy to center the roll with regarding a supplier.

A method for mounting a coreless roll of an absorbent paper product within a spout according to a second aspect of the invention includes the steps of (a) locating at least one depression that is formed in at least one side surface of the coreless roll; (b) align the coreless roll with respect to the spout with the help of the depression; and (c) securing the coreless roll on the spout in the aligned position.

According to a third aspect of the invention, a coreless roll of absorbent paper product that is configured to be easier to assemble in a rotating spout than coreless rolls hitherto known includes a wound tissue of absorbent paper product which it is wound around a winding shaft in a cylinder having the first and second flat ends; and a depression defined in at least one of said ends to guide a user to center said tissue in a roll with respect to a spout, whereby the coreless roll can be conveniently and accurately mounted in the spout.

These and various other advantages and novelty elements characterizing the invention are pointed out with particularity in the claims appended here and forming a part of this. However, for a better understanding of the invention, its advantages and the objects obtained by this use, reference is made to the drawings which form an additional part hereof, and to the accompanying descriptive matter in which it is illustrated and describes a preferred embodiment of the invention.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of a conventional coreless roll of an absorbent paper product.

Figure 2A is a diagrammatic view showing a first step in a process that is carried out according to a preferred embodiment of the invention.

Figure 2B is a diagrammatic view showing a second step in the process shown in Figure 2A.

Figure 2C is a diagrammatic view showing a third step in the process shown in Figures 2A and 2B.

Figure 2D is a diagrammatic view showing a fourth step in the process shown in Figures 2A-2C; Y Figure 3 is an overall view showing the installation of an improved coreless roll according to a preferred embodiment of the invention on a spout.

DETAILED DESCRIPTION OF THE PREFERRED MODALITIES Referring now to the drawings, where similar reference numerals designate a corresponding structure through the views, Figure 1 shows a conventional coreless roll 10 of an absorbent paper product 12. The coreless roll 10 is symmetrical about a winding shaft 16 and has a pair of flat side surfaces of opposite faces 14 defined thereon which are essentially flat and not broken, as shown in Figure 1. As can be imagined from see Figure 1, it is difficult to locating the winding shaft 16, which shows the difficulty of mounting such coreless rolls 10 on the rotating type jets such as, for example, the spout shown in Figure 3.

Figures 2A-2D show a method according to a preferred embodiment of the invention, to treat such coreless roll 10 of absorbent paper product 12 as to make it easier for a user to center a winding shaft 16 of the coreless roll 10 with respect to a jet, such as the jet 32 shown in FIG. 3. Referring to FIGS. 2A-2D, the preferred method is carried out by wetting first of selected portions of the two side surfaces of the pump. opposing faces 20 and 22 of the coreless roll 10. In a preferred embodiment this is accomplished by advancing a pair of nozzles 18, respectively, towards the side surfaces 22 to moisten the central area of the side surfaces 20, 22. nozzles 18 are then retracted as also diagrammatically indicated in Figure 2A.

Alternatively, the wetting exhibited in Figure 2A can be carried out in other ways, such as by using the same indentation tool to carry out the wetting. The indentation tool may have a fluid conduit defined there, or a reservoir for containing the moisturizing fluid.

As shown in Figure 2B, a pair of cylindrical tools 24 and 26 are then advanced towards the moistened central portion of the lateral surfaces 20 and 22 of the coreless roll 10. The tools 24 and 26 preferably have a diameter that is within the essentially range 1/32 of an inch to a half of an inch. More preferably, tools 24 and 26 have diameters that are approximately 5/32 of an inch. The tools 24 and 26 are preferably turned around their respective axis as they are advanced into the wetted sides 20 and 22 of the coreless roll 10 as shown in Figure 2C. The inventors have found that by wetting the area to be nicked considerably less force is required to form the indentation. At the same time, wetting allows a molded and more uniform appearance to be achieved when the depression is formed. In addition, the inventors have determined that the most effective method for making the indentations appears to be a combination of a rotating action and poking. A piston-type drive action, without the rotary movement, and especially without wetting, has been found to damage the edges of the orifice or depression and decrease the possibility of being able to obtain a uniform molded appearance.

After the passage shown in Figure 2C, the tools 24 and 26 are removed, leaving a finished improved coreless roll 28 of the absorbent paper product shown in Figures 2D and 3. As shown in Figure 3, the coreless roll 28 has a clearly defined depression 30 formed in the respective lateral surfaces 20 and 22 thereof.

The invention also includes a method for mounting the improved coreless roll 28 of the absorbent paper product onto a spout, such as the spout 32 shown in Figure 3 which is mounted to a wall 34. This is achieved by locating the depressions 30. so that they are formed on the respective lateral surfaces of the roll without improved core 28, then aligning the coreless roll 28 with respect to the spout 32. In practice, this is done by aligning the depressions 30 with the plugs 36 and 38 at the spout 32. The plugs 36 and 38 can have the bolts 40 and 42 extending from the ends thereof to further assist in the retention of the coreless roll 28 over the spout 32 during operation. A retraction mechanism 44 can be provided to retract the second shank 38 for ease of installation and / or removal of a coreless roll 28 from the spout 32.

It should be understood, however, that while numerous features and advantages of the present invention have been set forth in the foregoing description, together with details of the structure and function of the invention, that the description is illustrative only, and that make changes in detail, especially in matters of form, size and arrangement of the parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.

Claims (19)

1. A method for treating a coreless roll of absorbent paper product to make it easier for a user to center a winding shaft of the coreless roll with respect to a spout, comprising the steps of: (a) placing a tool to a side of at least one side of the coreless roll so that the tool is essentially centered with respect to the winding axis of the roll; (b) pressing the tool on one side of the roll to form a visible depression on the side of the roll that is centered with respect to the winding axis of the roll, so maintenance personnel will find it easy to center the roll with respect to to the supplier.

2. A method as claimed in clause 1, characterized in that it comprises the step of moistening the tool before completing step (b).

3. A method as claimed in clause 1 characterized in that it comprises the step of wetting a part of the roll side to which the tool will be applied before step (b).

4. A method as claimed in clause 1 characterized in that step (b) is carried out by rotating the tool about an axis of the tool when the tool is pressed into the side of the roll.

5. A method as claimed in clause 2 characterized in that the step (b) is carried out by rotating the tool about an axis of the tool to be this tool pressed on the side of the roll.

6. A method as claimed in clause 3 characterized in that step (b) is carried out by rotating the roll about an axis of the tool when this tool is pressed on the side of the roll.

7. A method as claimed in clause 1 characterized in that the part of the tool peneing the roll in step (b) is essentially cylindrical.

8. A method as claimed in clause 7 characterized in that the cylindrical part of the tool has a diameter that is within the range of essentially 1/32"to 1/2".

9. A method as claimed in clause 8 characterized in that the cylindrical part of the tool has a diameter that is approximately 5/32".

10. A method as claimed in clause 1 characterized in that step (b) is carried out so that the tool penees the coreless roll by a distance within the range of essentially 1/32 to 1/2 inches.

11. A method as claimed in clause 10 characterized in that step (b) is carried out so that the tool penees inside the coreless roll by a distance of about 3/16 inches.

12. A coreless roll of an absorbent paper product that is manufactured according to the method as claimed in clause 1.

13. A method for mounting a coreless roll of an absorbent paper product to a spout, comprising the steps of: (a) locating at least one depression that is formed in at least one side surface of the coreless roll; (b) align the coreless roll with respect to the spout with the help of the depression; (c) securing the coreless roll on the spout in the aligned position.

14. A method as claimed in clause 13, characterized in that step (a) is carried out by locating a pair of depressions in the coreless roll, a first of the depressions being on one side of the roll and essentially centered with respect to a winding axis of the roll, the second depression being on a second opposite side of the roll and also being essentially centered with respect to the winding axis of the roll.

15. A coreless roll of an absorbent paper product that is configured to be easier to assemble in a rotary jet than the coreless rolls hitherto known, comprising: a woven fabric of an absorbent paper product that is wound around a winding shaft in a cylinder having the first and second flat ends; a depression defined in at least one of the ends to guide a user to center said wound tissue with respect to a spout, whereby the coreless roll can be conveniently and accurately mounted in the spout.

16. A coreless roll as claimed in clause 15 characterized in that said fabric is not cut to form said depression.

17. A coreless roll as claimed in clause 15 characterized in that said depression is of the type that is formed by pressing a tool at said end.

18. A coreless roll as claimed in clause 17 characterized in that said depression is of the type that is formed by providing a tool at said end while a part of the wound tissue that penetrates the tool is wet.

19. A coreless roll as claimed in clause 15 characterized in that a pair of depressions is defined in the coreless roll, a first of the depressions being on one side of the roll and essentially centered with respect to a roll winding axis , the second depression being on a second opposite side of the roll and also being essentially centered with respect to the winding axis of the roll.