JP2000189342A - Toilet paper roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To have both the temporary fixing performance having proper strength and easiness of mutual separation of paper by forming a roll-like winding part extending from a substantially start end portion of toilet paper to a designated range as a cylindrical temporary fixing part fixed with a diameter substantially equal to a paper tube core. SOLUTION: A cylindrical temporary fixing part A is formed by taking the winding start forward end of toilet paper 1 as a winding start end la, spraying a solution L containing a filler 3 formed of fine grains extending from the winding start end 1a to a designated range A to wind the paper with the designated range A from the winding start end 1a taken as a roll center part, and mutually fixing the toilet paper 1, 1 through the solution L. By the cylindrical temporary fixing of the cylindrical temporary fixing part A, the toilet paper 1, 1 to which the solution L is sprayed to adhere can be easily and neatly separated about to the end to be used to the last.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coreless type toilet paper roll which can be mounted on a thick shaft holder in ordinary households, and more particularly, to easily peel off the toilet paper at a core portion at the center of the roll. The present invention relates to a toilet paper roll that can make use of toilet paper without waste to the end.

[0002]

2. Description of the Related Art In a conventional general toilet paper roll, a toilet paper and a core are separated from each other, and the core is formed of cardboard and has a diameter of about 3.8 cm.
It is a cylindrical body of the order. On the other hand, in recent years, so-called coreless type toilet paper rolls in which the above-mentioned toilet paper and the core are integrated have been actively manufactured and used in many cases.

There are two types of coreless toilet paper rolls, one having a particularly small inner diameter at the center of the roll and the other having a large inner diameter adapted to a thick roll receiving shaft which can be mounted on a general household toilet paper roll holder. I do. The type in which the diameter of the core hole is particularly small allows the toilet paper to be easily wound from the center of the roll, and its manufacture is relatively simple. However, in the type with a small core hole, the supporting shaft on the holder side also has a small diameter, and this can be used for a thick roll bearing shaft mounted on a holder used at home. Was unsuitable.

On the other hand, in the case where the inner diameter of the center of the roll is a cylindrical shape which is substantially equal to the diameter of the core made of cardboard, the properties required for the center of the roll are increased. That is, the diameter of the core hole at the center of the roll must be increased to provide substantially the same shape retention and durability as a core formed of a cardboard material.

[0005]

In order to form the center of the roll of coreless toilet paper, the most widely used method is to form an aqueous solution in which a water-soluble adhesive or glue is dissolved. This is formed by spraying and adhering to an appropriate range of toilet paper, and temporarily fixing the center of the roll by drying the aqueous solution, so as to have a diameter equivalent to that of a general paper cylinder core.

However, as described above, in the toilet paper in which the center portion of the roll of the toilet paper is temporarily fixed like a paper tube core, if the amount of the aqueous solution attached is too large, the toilet paper laminated in a roll shape may be used. The adhesive strength between them is too strong, and the toilet paper near the center of the roll cannot be easily peeled off, and even if it can be peeled off, it can never be peeled off neatly, It is not something that can be used.

[0007] From the above, the toilet paper constituting the center of the roll can hardly be used, and in many cases, this part is apt to be discarded. For this reason, it has been difficult to use the coreless toilet paper roll, which is said to be able to use up the toilet paper at the center of the roll, without any waste.

In view of the above, a coreless type toilet paper roll having both the properties of temporary adhesion having appropriate strength and ease of peeling between toilet papers is required in the center of the roll of the toilet paper roll. Have been.

[0009]

The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that the present invention provides a roll-shaped toilet paper that extends over a predetermined range from the leading end of the toilet paper. The wrapping part is a toilet paper roll formed as a cylindrical temporary fixing part temporarily fixed to a diameter approximately equal to the core of the paper cylinder by spray adhesion of an aqueous solution containing powdered filler. Accordingly, the present invention relates to a toilet paper roll having a core formed by forming the toilet paper at the beginning of the roll at the center of the roll by an appropriate temporary fixing means, and in particular, it can be easily peeled down to the roll center, Paper can be used up to the end without waste, and the above problem has been solved.

[0010]

Next, embodiments of the present invention will be described with reference to the drawings. The toilet paper roll has a cylindrical temporary fixing portion A formed at the center of the roll of the toilet paper. It said cylindrical temporary fixing portion A are those in which the toilet paper 1 within a predetermined range A ₁ from winding start tip 1a in the roll center, which is composed of a solution L containing the Tenryo 3.

In the present invention, the toilet paper roll is a finished product in which the toilet paper 1 is made into a roll, and the toilet paper 1 has an appropriate length including a roll state or a non-roll state. .
The aqueous solution L is a substance having adhesive strength, and is dried to temporarily fix the toilet papers 1 and 1 together, and to give appropriate hardness to the temporarily fixed portion, thereby forming the cylindrical temporary fixing portion A.

The filler 3 contained in the aqueous solution L is in the form of fine particles, and a pigment is mainly used. The pigment is
Inorganic pigments that are mainly used in cosmetics are preferably used, and are preferably those that have adhesiveness, covering power, etc., and are easy to adhere to and cover the cellulose 1b, 1b,... Of the toilet paper 1. . The ratio between the aqueous solution L and the filler 3 contained in the aqueous solution L is expressed as a volume ratio,
The content of the filler 3 is in the range of about 10% to about 50%, and more preferably about 15% to about 30%. A more optimal ratio is around 20%.

The cylindrical temporary fixing portion A is provided with a toilet paper.
The leading end of the par 1 is defined as a leading end 1a of the winding.
Predetermined range A from beginning tip 1a₁Consists of fine particles
The aqueous solution L containing the filler 3 is sprayed and adhered,
Predetermined range A from beginning tip 1a ₁Becomes the center of the roll
Wound and toilet paper through aqueous solution L
A temporary fixing portion A is formed by temporary fixing of the first and the first members.
(See FIGS. 1A, 1B, and 1C).

Thus, the aqueous solution L serving as an adhesive
Is infiltrated and diffused into and out of the toilet paper 1, and the toilet papers 1, 1 laminated in a roll shape at the center of the roll are temporarily fixed to each other, and the cylindrical temporary fixing portion A
Is configured. The temporary fixing in the cylindrical temporary fixing portion A means that the toilet papers 1 and 1 formed into a roll and to which the aqueous solution L is sprayed and adhered can be easily and neatly peeled off to almost the end, and used to the end. Means a state of sticking to the extent possible.

The temporary fixing at the cylindrical temporary fixing portion A is as follows.
As described above, the toilet papers 1, 1,... Laminated in a roll shape are temporarily fixed to each other by the aqueous solution L, and the cylindrical temporary fixing portion A functions as a paper tube core in a general toilet paper roll. Make The maintenance of the cylindrical shape by the temporary fixing of the cylindrical temporary fixing portion A is determined by the properties of the aqueous solution L, such as the amount of the aqueous solution L attached, the viscosity, the hardness after drying, or the adhesive strength.

Further, the cylindrical temporary fixing portion A by the aqueous solution L
More specifically, the fine particle powder filler 3 contained in the aqueous solution L adheres to the fibers 1b, 1b,... Constituting the toilet paper 1, and the fine particle powder of the filler 3 is removed. .. Are substantially covered with the fibrous materials 1b, 1b,... (See FIGS. 2A and 2B).

Therefore, the toilet papers 1 and 1 to be laminated adhere to each other due to the adhesive property of the aqueous solution L.
With the contained filler 3, the adhesive force is adjusted to be weaker, the temporary fixing state is established, and when the toilet papers 1, 1 are peeled off from each other, they can be easily and neatly peeled off (FIG. 4 (A), (B)).

Next, wherein the cylindrical temporary fixing portions A, there are embodiments in which toilet paper 1 at the winding start end portion folded portion 1a ₁ folded in the folded shape portion is formed. In this embodiment, the wrapping portion 1 is folded in an appropriate range of the toilet paper 1 from the leading end 1a of the winding.
a ₁ is formed. The folded portion 1a ₁ starts winding and the tip 1a
By being formed at the location, the strength and durability of the inner diameter surface of the roll central portion of the cylindrical temporary fixing portion A can be improved (see FIGS. 5A and 5B).

Next, a process for producing the toilet paper roll of the present invention will be described. A feeding step of transporting the sheet-shaped toilet paper 1, a core forming roller 5,
The spray device includes a first support roller 6, a second support roller 7, and a pressing roller 8. The spray device further includes an aqueous solution injection nozzle unit 9, and an air nozzle 10 is disposed near the aqueous solution injection nozzle unit 9. (See FIG. 6).

The core forming roller 5 is disposed at a position intermediate and above the first supporting roller 6 and the second supporting roller 7, and the air nozzle 10 moves upward from slightly below the core forming roller 5. It is arranged so that air is injected. The aqueous solution spray nozzle 9 is located above the air nozzle 10, and the tip thereof is arranged to be inclined toward the approximate center of the core forming roller 5. A pressing roller 8 is disposed above the core forming roller 5.

The sheet-shaped toilet paper 1 conveyed in the feeding step is wound around a core forming roller 5.
In the step of winding around the core forming roller 5 to form a roll, the pressing roller 8 supported by the first support roller 6 and the second support roller 7 and positioned on the core forming roller 5 is a roll of toilet paper. 1 (see FIGS. 7A and 7B).

First, at the moment when the toilet paper sent from the feeding step reaches the lower part of the core forming roller 5, air is jetted from the air nozzle 10 to the tip of the toilet paper 1, and the tip of the toilet paper 1 the applied air pressure as against the core part formed roller 5, while forming the folded portion 1a ₁ by folding, Yuku wound around the core forming roller 5 [see FIG. 8 (a)].

Next, while the folded portion 1a ₁ is formed while spraying attaching aqueous L from the aqueous solution injection nozzle part 9 the moment wound around the core forming roller 5, rotating the core portion forming roller 5, toilet aqueous solution was the sprayed deposited to a predetermined range a ₁ paper 1 slide into form a cylindrical temporary fixing portion a [FIG. 8 (B), (C) and (a) refer to Fig. When the portion of the cylindrical temporary fixing portion A is formed, the spray adhesion of the aqueous solution L from the aqueous solution spray nozzle portion 9 is stopped, and the toilet paper 1 is wound around the core portion forming roller 5 as it is. By such a manufacturing process, a toilet paper roll can be manufactured extremely efficiently.

[0024]

According to the first aspect of the present invention, the roll-shaped winding portion extending from the leading end of the toilet paper 1 approximately from the leading end to the predetermined range A ₁ is formed of the aqueous solution L containing the powdered filler 3. The toilet paper roll formed as a cylindrical temporary fixing portion A temporarily fixed to a diameter substantially equal to the paper tube core by spray adhesion of the toilet paper 1 and the toilet paper 1 at the core portion at the center of the roll. 1 can be easily peeled off, and the toilet paper 1 can be completely used up to the end.

The above effects will be described in detail.
There obtained by adhering an aqueous solution L, which is contained in a substantially winding start roll winding portion becomes the roll center portion ranging from the tip portion to a predetermined range A ₁ of toilet paper 1, the attachment portion of the aqueous solution L, general toilet It is temporarily fixed to a diameter substantially equal to the core of the paper roll.

Then, the fine particles of the filler 3 as the powder are mixed with the cellulose (1b, 1b) constituting the toilet paper 1.
b,...), and the fibrous materials (1b, 1b,...) are almost covered with the fine particles of the filler 3. Therefore, the toilet papers 1 and 1 are adhered to each other by the adhesive property of the aqueous solution L. However, since the filler 3 contained in the aqueous solution L covers the fibrous materials (1b, 1b,...), The elements (1b, 1b,...) Are less likely to be entangled with each other, and the adhesive strength can be appropriately reduced.

In the range in which the aqueous solution L is adhered, the work of peeling the toilet papers 1 and 1 can be relatively easily performed, and the state in which the toilet papers 1 and 1 are peeled off can be obtained. It is beautiful. Thus, the toilet paper 1 in the cylindrical temporary fixing portion A can be used up without waste.

Next, according to a second aspect of the present invention, there is provided a toilet paper roll using a pigment as the filler 3 according to the first aspect, whereby pigment particles are extremely fine. Cellulose 1b, 1
In order to improve the adhesiveness to the fibers 1b and to improve the covering property to the fibrous materials 1b, the temporary fixing of the cylindrical temporary fixing portion A can be the best.

[Brief description of the drawings]

FIG. 1A is a perspective view of a toilet paper roll. FIG. 1B is an enlarged cross-sectional view of a cylindrical temporary fixing portion of the toilet paper roll. FIG. 1C is a plan view showing a predetermined area of the toilet paper and an attached aqueous solution.

FIG. 2A is an enlarged sectional view of a cylindrical temporary fixing portion. FIG. 2B is an enlarged view of a portion A in FIG.

FIG. 3 is a sectional action view of a state in which the toilet papers stacked in a roll shape are peeled off from each other.

4 (A) is an enlarged view of a portion where fibrous elements are intertwined in a portion of FIG. 3; FIG. 4 (B) is an enlarged view of a portion where intertwined fibrous materials are separated in a portion of FIG.

5A is a schematic view of a cylindrical temporary fixing portion having a folded portion, and FIG. 5B is an enlarged sectional view of the folded portion.

FIG. 6 is a partial perspective view showing a toilet paper roll manufacturing apparatus.

FIG. 7A is a schematic view showing an initial process of manufacturing a toilet paper roll. FIG. 7B is a schematic diagram showing a late process of manufacturing a toilet paper roll.

FIG. 8A is a diagram showing a state in which the toilet paper has begun to wind around the core forming roller, and FIG. 8B is a diagram showing a state in which the aqueous solution is sprayed and adhered to the toilet paper having begun to wind around the core forming roller. ) Shows a state in which the folded portion is formed on the toilet paper. (D) shows a state in which the toilet paper is formed on the roll.

[Explanation of symbols]

A ₁ ... Predetermined range 1 ... Toilet paper 1a ₁ ... Folded part L ... Aqueous solution 3 ... Tongue

Claims (2)

[Claims] 1. A roll-shaped wrapping portion extending from a leading end of a toilet paper to a predetermined range from a leading end thereof substantially has a diameter substantially equal to that of a paper tube core by spray adhesion of an aqueous solution containing a powdered filler. A toilet paper roll formed as a cylindrical temporary fixing portion temporarily fixed to the toilet paper roll. 2. The toilet paper roll according to claim 1, wherein a pigment is used as the filler.