JP2000229046A - Toilet paper roll - Google Patents

Abstract

PROBLEM TO BE SOLVED: To serviceably use up toilet paper to the end by easily tearing off the toilet paper in a core part of a roll cental part place in a coreless type toilet paper roll capable of being installed on a thick shaft holder of a general home. SOLUTION: A roll-shaped winding part extending to a prescribed range A1 from a position 1b place up to becoming the length equivalent to at least one round of the outer periphery of the almost same diameter as a paper cylinder core from the winding start tip 1a of toilet paper 1 is formed as a cylindrical temporarily fixing part A temporarily fixed by spraying sticking of a dispersing liquid including a powdery filler.

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 A conventional general toilet paper roll has a toilet paper and a winding core (core) separated from each other, and the core is formed of a cardboard material and has a diameter of about 3.8.
It is a cylindrical body of about cm. 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 of a commercially available paper core, that is, a coreless type having a cylindrical shape in which the inner diameter of the center of the roll is substantially equal to the diameter of a core made of cardboard material, a requirement for the center of the roll is required. More properties. 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]

Therefore, one of the most widely used methods for forming the center of the roll of coreless toilet paper is to use an aqueous solution in which water or glue is dissolved in an appropriate range for forming the center of the roll. Is spray-adhered to the toilet paper, and its water or aqueous solution permeates the inner or outer periphery to temporarily fix the center of the roll, and is formed so as to have a diameter equivalent to that of a general paper tube core.

However, as described above, in the case where the center of the roll of the toilet paper is temporarily fixed like a paper tube core, if the amount of water or aqueous solution attached is too large, the toilet paper is laminated in a roll shape. The adhesive strength between the toilet papers is so strong that it is not easy to peel off the toilet papers near the center of the roll, and even if they can be peeled off,
It can never be peeled off neatly and is not usable.

[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 is often 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 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. Further, the temporary fixing property is required to be surely fixed because the temporary fixing property may be wrapped around the holder core when attached to the toilet holder.

[0009]

The inventors of the present invention have made intensive studies to solve the above-mentioned problems, and as a result, have found that the present invention provides an outer periphery having a diameter substantially equal to the diameter of the paper core from the leading end of the toilet paper. The roll-shaped wrapped portion extending from the position where the length becomes at least one circumference to a predetermined range is a cylinder in which a powdered filler is temporarily fixed by spray adhesion of a dispersion liquid containing water. In particular, the toilet paper roll formed as the temporary fixing portion can easily be peeled off to the center of the roll of the cylindrical temporary fixing portion. The center portion can be kept from peeling off at all times, and the toilet paper can be used up to the end without waste.

[0010]

Next, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the toilet paper roll has a cylindrical temporary fixing portion A formed at the center of the roll of the toilet paper. Said cylindrical temporary fixing portion A from the position 1b point from the winding start tip 1a in the roll top center until at least one round of the length of the paper tube core P and the outer periphery of substantially the same diameter of the predetermined range A ₁ toilet It is composed of paper 1 and dispersion L containing filler 3.

The paper core P is a core usually mounted on the center of a commercially available toilet paper roll, and usually has an inner diameter of about 3.8 cm. For this reason,
One round is about 3.8 × 3.14 = about 12 cm.
For this reason, at least one round, the winding start tip 1a
From the point to the position 1b is at least 12 cm. As a result, as shown in FIG. 2 (A), the dispersion liquid L containing the filler 3 is sprayed up to at least one circumference of the outer circumference having substantially the same diameter. distance between one turn and two laps parts, the distance between the 2 laps and 3 laps, the predetermined range a ₁ interval, etc. with 3 laps and 4 laps contained the Tenryo 3 dispersion The liquid L is injected.

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 dispersion liquid L is a substance having an adhesive force, and is dried to temporarily fix the toilet papers 1 and 1 to each other and to give appropriate hardness to the temporarily fixed portion, thereby forming the cylindrical temporary fixing portion A.

The filler 3 contained in the dispersion 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 1s, 1s,... Of the toilet paper 1. . The ratio of the dispersion liquid L to the filler 3 contained in the dispersion liquid 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 filler 3 does not dissolve even when mixed with water, and the dispersion liquid L has fine particles of the filler 3 in uniform water.

The cylindrical temporary fixing portion A is defined as a leading end 1a at the leading end of the toilet paper 1 at the beginning of winding, and at least one round of the outer periphery having a diameter substantially equal to the paper core P from the leading end 1a. over a predetermined range a ₁ from the position 1b locations until the length, the dispersion liquid L is heaven fee 3 consisting of fine particles are contained is sprayed deposited, paper tube core P from the winding starting tip 1a
At least the center of the roll of about 12 cm between the positions 1b until the length of at least one round of the outer circumference having substantially the same diameter as that of the roll is not sprayed. The predetermined range A ₁ is wound becomes the roll center point from the position 1b point, by the temporary fixing of the toilet paper 1,1 each other through a dispersion L, and those cylindrical temporary fixing portion A is formed [See FIGS. 1A, 1B, and 1C].

Thus, the dispersion 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 fixation in the cylindrical temporary fixation portion A means that the toilet papers 1 and 1 formed into a roll and to which the dispersion liquid L has been spray-adhered can be easily and neatly peeled off to almost the end and used to the end. It means a fixed state to the extent that it can be performed.

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 with the dispersion liquid L, and the cylindrical temporary fixing portion A is formed of a paper tube core of a general toilet paper roll. Play a role. The maintenance of the cylindrical shape due to the temporary fixation of the cylindrical temporary fixation portion A is determined by the properties of the dispersion L, such as the amount of adhesion of the dispersion L, viscosity, hardness after drying or adhesive strength.

Further, a cylindrical temporary fixing portion A made of the dispersion liquid L
More specifically, the fine particle powder filler 3 contained in the dispersion L adheres to the fibers, etc. constituting the toilet paper 1, and the fine particle powder of the filler 3 .. Are substantially covered with the fibrous materials 1s, 1s,.
(A), (B), (C)).

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

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 the embodiment, the winding start tip 1a is folded back in the appropriate range of toilet paper 1, folded portion 1a ₁ is formed. By該折return part 1a ₁ is formed on the winding starting tip 1a locations, it is possible to improve the strength and durability of the roll center inner diameter surface of the cylindrical temporary fixing portion A [FIG 5 (A), (B )reference〕.

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 a dispersion liquid injection nozzle unit 9, and an air nozzle 10 is provided near the dispersion liquid injection nozzle unit 9. (See FIG. 7).

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 slightly from below the core forming roller 5. It is arranged so that air is injected. Further, the dispersion liquid jet nozzle section 9 is located above the air nozzle 10, and the tip thereof is disposed so as to be inclined toward substantially the 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 is supported by pressing.

First, the toilet paper 1 sent out from the feeding step is cut on the support roller 7 by a cutter (not shown), and at the moment when the next step is performed,
Air is sprayed from the air nozzle 10 to the tip of the toilet paper 1 to apply the wind pressure so that the tip of the toilet paper 1 is pressed against the core forming roller 5, and the core is formed to be folded while forming the folded part 1 a _1. 5 (see FIG. 6A).

Next, the while folded portions 1a ₁ is formed,
While being wound around the core forming roller 5, the toilet paper 1 is further wound (see FIG. 6 (B)).
Immediately after being wound, the dispersion liquid jetting nozzle section 9 sends the dispersion liquid L
While spraying attaching to rotate the core forming roller 5, slide into form a cylindrical temporary fixing portion A was spray deposited dispersion to a predetermined range A ₁ of toilet paper 1 [FIG. 6 (C), the
(D)). When the cylindrical temporary fixing portion A is formed, the spray adhesion of the dispersion liquid L from the dispersion liquid injection nozzle 9 is stopped, and the toilet paper 1 is wound around the core forming roller 5 as it is. By such a manufacturing process, a coreless toilet paper roll having an inner diameter substantially the same as that of a commercially available paper core P is manufactured.

[0025]

According to the first aspect of the present invention, a predetermined range A from the position 1b from the leading end 1a of the toilet paper 1 to at least one circumference of the outer circumference having substantially the same diameter as the core P is obtained. _The roll-shaped winding portion extending over ₁ was a toilet paper roll formed as a cylindrical temporary fixing portion A temporarily fixed by spray adhesion of the dispersion L containing the powdered filler 3. This makes it possible to easily peel off the toilet papers 1 and 1 of the cylindrical temporary fixing portion A up to the center portion of the roll, and to use up the toilet paper 1 to the end without waste. The final core of the roll of the temporary fixing part is
The dispersion liquid L can be prevented from being almost always peeled off by soaking, and can be provided for excellent use.

The above effect is described in detail.
Is sprayed, and a predetermined range A ₁ from a position 1b from a winding start end 1a of the toilet paper 1 to a length of at least one circumference of an outer circumference having substantially the same diameter as the paper core P is sprayed. Is formed as a temporarily fixed cylindrical temporary fixing portion A, so that the spray-attached portion of the dispersion liquid L has substantially the same diameter as the core of a general toilet paper roll. Is configured as a temporarily fixed core.

In the cylindrical temporary fixing portion A excluding the center portion of the roll, fine particles of the filler 3 adhering to the fibers 1s, 1s,...
The fibers 1s, 1s,... Are almost covered with the fine filler 3. Therefore, the toilet papers 1 and 1 are adhered to each other due to the adhesive property of the dispersion liquid L, and the filler 3 contained in the dispersion liquid L contains the cellulose 1s and 1
s,... are covered, so that the fibrous materials 1s, 1s,
... It is difficult for them to be entangled with each other, so that the adhesive can be appropriately weakened.

As a result, in the range where the dispersion liquid L has adhered, the operation of peeling off the toilet papers 1 and 1 can be performed relatively easily, and the toilet papers 1 and 1 can be peeled off from each other. Is also beautiful. Thus, the toilet paper 1 in the cylindrical temporary fixing portion A can be used up without waste.

In particular, the fine particles of the filler material 3 penetrate the fibers 1s, 1s,... In the space between the first and second rounds of the center of the roll of the toilet paper 1. At least the last round, which is almost the same as the one used up to the end. In particular, since the inner surface of the last round is manufactured by impregnation of the dispersion liquid L, the core as the winding shaft There is an advantage that it does not become difficult to separate by winding around the part forming roller 5 and, at the time of mounting on the toilet holder, it is possible to sometimes avoid inconvenience caused by winding around the holder core.

Next, according to a second aspect of the present invention, in the first aspect, since the toilet paper roll is made of a pigment as the filler 3, the pigment particles are extremely fine. Cellulose 1s, 1
In order to have good adhesion to s,... and good coverage to fibrous materials 1s, 1s,.

[Brief description of the drawings]

1A is a perspective view of a toilet paper roll. FIG. 1B is an enlarged cross-sectional view of a portion E near a cylindrical temporary fixing portion of the toilet paper roll. FIG. Plan view showing the position where the liquid is sprayed

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

3 (A) is an enlarged view of (B) part of FIG. 2 (A). (B) is a super enlarged view of (D) part of (A).

FIG. 4 is a cross-sectional action view of a state in which the toilet papers at a cylindrical temporary fixing portion laminated in a roll shape are peeled off from each other.

5 (A) is an enlarged view of a portion where fibrous elements are intertwined in a portion (e) of FIG. 4 (B) is an enlarged view of the intertwined fibrous materials in a portion (e) of FIG. 4 Enlarged view of part

FIG. 6A is a schematic diagram illustrating a manufacturing process of a toilet paper roll. FIG. 6B is a schematic diagram illustrating a manufacturing process of a toilet paper roll. FIG. 6C is a schematic diagram illustrating a manufacturing process of a toilet paper roll. D) Schematic diagram showing the manufacturing process of the toilet paper roll.

FIG. 7 is a perspective view of a main part of a toilet paper roll manufacturing.

[Explanation of symbols]

A: Cylindrical temporary fixing portion A ₁ : Predetermined range P: Paper core L: Dispersion liquid 1: Toilet paper 1a: Winding start tip 1b: Position 3: Toilet

Claims (2)

[Claims] 1. A roll-shaped wrapping portion extending from a position from a leading end of the toilet paper winding to a length of at least one circumference of an outer periphery having substantially the same diameter as a paper cylinder core over a predetermined range is a powder-like portion. A toilet paper roll, characterized in that the toilet paper roll is formed as a cylindrical temporary fixing portion temporarily fixed by spray adhesion of a dispersion liquid contained in water. 2. The toilet paper roll according to claim 1, wherein a pigment is used as the filler.