WO2001060223A1

WO2001060223A1 - Toilet paper roll and method of manufacturing the paper roll

Info

Publication number: WO2001060223A1
Application number: PCT/JP2001/001029
Authority: WO
Inventors: Ryuzou Kubota; Sukesada Watanabe
Original assignee: Kasuga Seishikogyo Co., Ltd.
Priority date: 2000-02-15
Filing date: 2001-02-14
Publication date: 2001-08-23
Also published as: US20030132330A1; US20040159730A1

Abstract

A toilet paper roll capable of remarkably reducing unwinding noise when used as a toilet paper roll, improving a refuse treatment measure by easily crushing and disposing off a thick core of the paper roll, reducing the production cost of the paper roll, flowing the thick core into a toilet and, when used, allowed to be recovered generally to a circular section form for practical use while the storage and transportation costs of the paper roll are reduced, comprising the thick core (1) made of thin paper of approx. 4 cm in outside diameter and toilet paper (2) generally softly wound on the thick core (1) from the first to the last, wherein the thick core (1) is formed flat as required, and the toilet paper (2) is also formed in a flat elliptic shape so as to follow up the flat thick core (1).

Description

Specification

Toilet parlor and its manufacturing method

The present invention relates to a toilet paper roll having a thick cylindrical core attachable to a thick shaft portion of a general household toilet paper roll holder, and a method for manufacturing the same. Background art

In a conventional general toilet paper roll, the toilet paper and the paper tube core are separated, and the core is made of cardboard cardboard and has a diameter of about 3.8 cm to about It is a cylinder of about 4.5 cm. On the other hand, in recent years, a so-called coreless toilet paper roll, in which the above-mentioned toilet paper and a part of the roll around which the toilet paper is wound is used as a core, has been researched and developed. In the market.

This coreless toilet paper roll has a particularly small hole inside diameter at the center of the mouth, and a large hole inside diameter that can be attached to the thick shaft of a general household toilet paper per roll holder. And exists. In the type having a small inner diameter of the hole, the shaft of the holder is also used with a small diameter, so that it is not used for the thick shaft of the toilet paper mouth holder used in ordinary households. I couldn't do it and was unfit.

Regardless of whether the core inside diameter of the coreless toilet paper roll is small or large, each of the coreless toilet paper rolls was wound substantially hard from the beginning to the end, and none was softly wound. This is due to the fact that it was essential to wrap hard from the beginning to the end in order to form a part of the center of the roll around which the toilet paper was rolled as the core (actual fairness 6—4 7 3 5 6 No.). For this reason, there has been a demand for the development of a soft coreless toilet roll per roll as a general site or user.

Soft type coreless toilet unit developed based on these demands etc. The per-roll is generally softly wound, and the toilet paper at the center of the roll at the beginning of the winding is bonded with an adhesive to form a cylindrical core. Although not specified as a soft type, the existence of an adhered cylindrical core is disclosed in Japanese Patent Application Laid-Open No. Hei 7-23995. The cylindrical core portion was formed by bonding with an adhesive at a portion where the toilet roll had begun to be wound softly, but none was formed in an orderly manner. The external appearance of the hole shape of the cylindrical core portion was generally such that the inside diameter of the hole was such that it was broken at the beginning of the extremely irregular winding, so that it was difficult to fit into the field. It was technically difficult to form the center of the roll at the beginning of such a soft-type coreless toilet paper roll. In addition, the production machine for producing this soft-type coreless toilet paper is a special-purpose machine, which has the disadvantage of being extremely expensive as a toilet paper roll product.

In recent years, there is a tendency for women and the like to extremely dislike the occurrence of a rewinding sound such as rattling when using a toilet paper roll. For this reason, it is required to develop the toilet paper roll so that no unwinding sound is generated or extremely small when used.

In addition, in commercially available toilet parlors, especially after use, treatment of a paper core, which is a core at the center of the roll, is regarded as a problem. That is, since the core is made of cardboard cardboard, it cannot be easily crushed by women and children, and has the drawback of being bulky to be thrown away as garbage. Furthermore, in public toilets and the like, the paper core of the toilet toilet roll is discarded in the toilet, and this often causes clogging of the toilet. There is a history of development. In addition, a type that allows the core, which is the core of the paper tube, to flow into the toilet has been developed, but it was expensive and was not intended for general use. Toilet parlors that have been made into products that have a flat elliptical shape have also been developed (Japanese Utility Model Laid-Open No. 7-258984), but the core of the paper cylinder is made of cardboard cardboard. Because it is formed, it has a large force to process it into a flat shape, so special equipment was required (Japanese Patent Publication No. 5-218184, Japanese Patent Publication No. 6-8424202) No.) For this reason, there was a disadvantage that the manufacturing unit price was expensive. In addition, when used, see Figure 43. As shown in the figure, the core of the paper cylinder made of cardboard cardboard does not become round, and an unusually loud noise is generated even when it is mounted on the thick shaft of a general household toilet holder. There was an inconvenience. Disclosure of the invention

In order to solve the above-mentioned problems, the present invention comprises a thin paper core having a diameter of about 4 cm and a thin paper core, and a toilet paper 2 wound on the thick core in a substantially soft manner from the beginning to the end. A toilet paper roll was configured. By attaching this to the thick shaft of a household household paper roll holder, the rewinding noise can be significantly reduced, the dust treatment of the thick cylinder core can be improved, and the thick cylinder core is inexpensive. In addition, the manufacturing cost of toilet rolls can be reduced, and the product value can be significantly improved compared to toilet rolls that are all softly wound up to the core.

Further, in the present invention, a thick paper core having a diameter of about 4 cm and made of thin paper, and a toilet wound with the first few turns hard on the thick core and then almost soft to the end and almost soft as a whole. It was constructed as a toilet paper roll consisting of a paper. In particular, even though the first few turns are hard and then wound almost softly to the end after being hardly wound on the core of the thick cylinder, the fact that the whole is wound almost softly means that the above-described winding is almost soft from the beginning to the end. It has the same configuration as above, and has the same effect. Further, in the present invention, a thin paper core having a diameter of about ⁴ cm and a thin paper core, and a few windings except for the first part are hardened on the thick cylinder core, and thereafter are softened substantially, and are generally softened as a whole. The toilet paper roll was composed of toilet paper. Even in this case, in particular, the fact that several windings except the beginning are hardly wound on the thick cylindrical core and then wound almost softly has the same configuration as the above-described winding almost softly from the beginning to the end, and has the same structure. It works.

Further, in the present invention, in the above-described three configurations, the thick cylindrical core is made of non-size paper. As a result, unlike conventional paperboard cores made of cardboard, the strength is extremely weak, and after using the toilet paper roll, the above-mentioned thick left on the thick shaft portion of the toilet roll of a general household or the like. Even if the tube core is flushed to the toilet, —Because of the size of the paper, it can be prevented from clogging the tile due to its water-soluble property (see Fig. 9). Therefore, after using the toilet parlor, there is a great convenience that the thick core is not discarded as general waste every time.

Further, in the present invention, a thick paper core of about 4 cm in diameter and a thin paper made of thin paper, and a toilet paper wrapped almost softly from the beginning to the end of the thick paper core are provided. The toilet toilet parlor is formed in a flat elliptical shape so that the toilet toilet par also follows the flat cylindrical core. For this reason, even when the core of the thick cylinder is flat, almost no pressure is applied even when it is flat because the thick core is made of thin paper when it is mounted on the thick shaft of the toilet / palette / mouth / holder. The fact that it is not done and the synergistic action of the soft toilet unit can restore it to a substantially perfect circle, which is sufficient for use. Furthermore, if the toilet paper roll has a flat elliptical shape, there is an advantage that the space can be greatly reduced as compared with the conventional round toilet toilet roll, and storage and transportation costs can be reduced. is there.

In the present invention, a thin paper core having a diameter of about 4 cm and a thin paper core, a toilet core wound around the core with the first few turns hard and then almost soft to the end, and generally soft as a whole. And the thick cylindrical core is formed in a flat shape, and the tilting bar is also formed in a flat elliptical shape so as to follow the flat large cylindrical core. It can be constructed as a single par-roll, or a thin paper core with a diameter of about 4 cm inside and outside, and a few turns except for the first part wound hard on the thick core, then soft and then almost soft as a whole. Toilet toilet paper, wherein the thick cylindrical core is formed in a flat shape, and the toilet paper is formed in a flat elliptical shape so as to follow the flat thick cylindrical core. Configured as one parrole Sometimes it is done.

Further, in the present invention, a thick paper core made of thin paper having a diameter of about 4 cm is provided, and a toilet paper is wound on the thick core in a substantially soft manner from the beginning to the end, and the thick core is provided on both sides. The toilet paper is formed in a substantially flat shape having a fig-shaped bulge portion, and the toilet paper is also formed in a flat elliptical shape so as to follow the substantially flat thick cylindrical core. Configured as a roll. For this reason, the thick cylindrical core is flat Even when it is attached to the thick shaft portion of the toilet paper roll holder, the pressure is almost constant even if it has a flat shape with a fig-shaped bulge on both sides because the thick cylinder core is made of thin paper. Not being added, the synergistic action with the soft toilet paper, and the absence of any broken lines due to the presence of the bulging portion can restore the shape to a substantially perfect circle, which is sufficient for use. . Furthermore, if the toilet paper roll has a flat elliptical shape, there is an advantage that the space can be greatly reduced as compared with the conventional round toilet paper roll, and storage and transportation costs can be reduced.

Further, in the present invention, in the above-described configuration, when the toilet paper is formed into a flat elliptical shape, when the compressive load of a predetermined value is applied to the toilet paper roll semi-finished product, the further There is no compression-yield point at which the displacement increases even if the pressing force is not increased, and the displacement is increased only for the pressing force that gradually increases below half of the predetermined value of the compressive load. A toilet paper roll was constructed. Thereby, the toilet parlor semi-finished product can be neatly formed into a flat elliptical shape with a small pressing force of not more than half of the predetermined value of the compressive load. In particular, since there is no compression yield point K at which the displacement increases even when no more pressing force is applied when the compression load reaches the specified value, a large flat elliptical molding machine is not required. Since the force to return to a circular shape is also small, there is an advantage that flat elliptical toilet paper roll packaging can be easily performed with a simple device or the like. However, when there is a core made of cardboard, as in the commercially available products a and b shown in FIGS. 36 and 44, there is a compression yield point K having a predetermined value of a large compression load. Therefore, a large force is required for compression, and when it is put in a bag or the like, the repulsion force for returning from an elliptical shape to a circular shape also becomes large, and a large encapsulation device has to be used. This has been solved by the invention.

Further, in the present invention, a toilet paper comprising a thin paper core having a diameter of about 4 cm inside and outside and a toilet paper which is generally softly wound around the thick core.

—The roll semi-finished product is manufactured, and then, the toilet paper roll semi-finished product is fixedly supported by the opposing pressing support plate at substantially the outer diameter position of the semi-finished toilet paper roll, and both directions substantially orthogonal to the interval between the two pressing support plates. From the center of the semi-finished toilet roll with the pressing portion at the tip of the hydraulic cylinder, and the position of both ends of the substantially flat core of the thick cylinder The thick cylindrical core as a whole is formed in a substantially flat shape while forming a fig-shaped bulge portion, and the pellet paper is also formed into a flat elliptical shape so as to follow the substantially flat thick cylindrical core. It was constructed as a method for manufacturing toilet paper rolls. For this reason, first, it is possible to avoid flattening by holding the semi-finished toilet / roll product, and in this state, pressing only the center, and the thin paper core made of thin paper By the synergistic action of the toilet paper which is wound almost soft as a whole, there is an advantage that the bulge portion like a fig can be easily formed.

Further, in the present invention, a semi-finished toilet paper roll made of a thin paper core having a diameter of about 4 cm and made of thin paper, and a toilet paper roll which is generally softly wound around the thick core is manufactured. Inserting and expanding the two hole-expanding round rods into the thick cylinder core, and forming the thick cylinder core into a flat elliptical shape, the liquid from the orthogonal direction of the distance between the two hole-expansion round rods from both sides. Pressing through a pressure cylinder to form a fig-shaped bulge on both sides of the thick cylinder core to form the entire thick cylinder core in a substantially flat shape, while the toilet paper is also in the substantially flat thick cylinder. This was configured as a method of manufacturing a toilet vapor roll formed in a flat elliptical shape so as to follow the core. For this reason, in particular, due to the synergistic action of the presence of the two hole-expanding round bars, the thin paper core made of thin paper, and the generally softly wrapped toilet wrapper, a fig-like bulge is formed. It has the advantage of being relatively easy to mold. In addition, when the toilet parlor is mounted on the thick shaft portion of the toilet paper mouth and the holder, there is an advantage that the thick cylindrical core can be formed into a substantially circular shape without a broken line. BRIEF DESCRIPTION OF THE FIGURES

FIG. 1A is a perspective view of a toilet roll of the first embodiment of the present invention, FIG. 1B is a partially enlarged perspective view of FIG. 1A, and FIG. 1C is a side view of FIG. 2A is a side view of the first embodiment of the present invention, FIG. 2B is a partially enlarged view of FIG. 2A, and FIG. 2C is a partial schematic view of FIG. 2A. 3A is a side view of the second embodiment of the present invention, FIG. 3B is a partially enlarged view of FIG. 3A, FIG. 3C is a partial schematic view of FIG. 3A, and FIG. FIG. 4B is a partially enlarged view of FIG. 4A, FIG. 4C is a partial schematic view of FIG. 4A, FIG. 5A is a state diagram of unwinding the present invention, and FIG. 5 A 6A and 6B are views showing a state where the sound source disappears or diminishes, FIG. 6A and FIG. 6B are views showing the state of the center of the toilet roll in the process of rewinding the present invention, and FIG. 7A and FIG. Fig. 8A is a state diagram of the process of crushing a normal thick tube core of the present invention, and Fig. 8B is another state diagram of the process of crushing the thick tube core of the present invention. FIG. 8C is still another state diagram in which the thick tube core of the present invention is crushed, FIGS. 9A to 9E are state diagrams in which the thick tube core of the present invention is flushed into a toilet, and FIG. Fig. 108 is a partially enlarged perspective view of Fig. OA, and Fig. 108 is a completed toilet paper roll of the fourth embodiment of the present invention. FIG. 11A is a perspective view of a semi-finished product and FIG. 11A is a side view of a semi-finished toilet product according to a fourth embodiment of the present invention, and FIG. Image line diagram, Fig. 118 is a partially enlarged view of Fig. 11A, Fig. 11C is a partial schematic diagram of Fig. 11A, Fig. 11A Half of a toilet paper roll according to a fifth embodiment of the present invention. Fig. 12B is a partial enlarged view of Fig. 12A, Fig. 12 (is a schematic diagram of Fig. 12A-part, Fig. 13A is Side view of semi-finished toilet roll per par and semi-finished product of 6 embodiment, imaginary diagram of finished product, Fig. 13B is a partially enlarged view of Fig. 13A, Fig. 13C is a partial schematic view of Fig. 13A FIGS. 14A to 14D show the process of returning the toilet paper roll of the fourth to sixth embodiments of the present invention to the original circular shape and mounting the roll on the thick shaft portion of the toilet bowl / parlor holder. FIG. 15A is a perspective view of a toilet paper roll semi-finished product of the seventh embodiment of the present invention, FIG. 15B is a partially enlarged perspective view of FIG. 15A, and FIG. Seventh embodiment: toilet pan Fig. 16A is a side view of a toilet paper roll semi-finished product according to the seventh embodiment of the present invention, and Fig. 16A is an imaginary diagram of the semi-finished product. B is a partially enlarged view of FIG. 16A, FIG. 16C is a partial schematic view of FIG. 16A, and FIG. 17A is a side view and a side view of a toilet paper roll semi-finished product according to the eighth embodiment of the present invention. Fig. 17B is a partially enlarged view of Fig. 17A, Fig. 17C is a partial schematic diagram of Fig. 17A, and Fig. 18A is a ninth embodiment of the present invention. Figure 18B is a partial enlarged view of Figure 18A, and Figure 18C is a partial schematic view of Figure 18A. FIGS. 19A to 19D are state diagrams of a process in which the toilet parlor according to the seventh to ninth embodiments of the present invention is returned to the original circular shape and is attached to the thick shaft portion of the toilet paper roll holder. Fig. 2 OA is the third production method of the present invention. I, the seventh to FIG. 20B is a schematic plan view of the final stage in the manufacturing process of the toilet paper bite according to the ninth embodiment, FIG. 20B is a plan view of a main part of FIG. 20A, and FIG. 21A to FIG. Fig. 22A to Fig. 22E are process diagrams for adding the toilet paper roll of the seventh to ninth embodiments to a flat ellipse according to the third manufacturing method, and Fig. 22A to Fig. 22E show a third manufacturing method of the present invention. FIG. 23 is a process diagram for processing the toilet roll of the seventh to ninth embodiments into a flat ellipse, and FIG. 23 is a third manufacturing method of the present invention, wherein the toilet roll of the seventh to ninth embodiments is shown. FIG. 24A shows a fourth manufacturing method of the present invention, in which a toilet paper roll of the seventh to ninth embodiments is manufactured, in which a perspective view of a main part in a state in which a pallet is manufactured. Front view, Fig. 24B is the state diagram of the manufacturing method of Fig. 24A, Fig. 25A is the load change rate table by winding type, Fig. 25B is the measurement for measuring the load change rate Schematic diagram, Fig. 25 C is a comparison graph of the load change rate by winding type, Fig. 6 is a table showing the measured load change rate of the product of the present invention, Fig. 27 is a slightly soft toilet toilet paper roll Table of measured data of the rate of change of the load of the toilet paper, Fig. 28 is a table of the measured data of the rate of change of the load of another slightly soft toilet paper mouthpiece, and Fig. 29 is the rate of the change of the load of the normally hard toilet paper roll. Table 30 shows the measurement data table of the rate of change of the load of the slightly hard toilet paper roll, and FIG. 31 shows the table of the measurement of the rate of change of the load of the hard toilet paper roll. Fig. 3-3 is a comparison chart of the measurement of the unwinding sound of the toilet paper, Fig. 34 is a comparison table of the noise level and the familiar sound, and Fig. Toilet paper roll comparing the product of the present invention with the conventional product Fig. 36 shows the compression load displacement diagram of the paper tube of the roll, and Fig. 36 shows the compression load displacement diagram for manufacturing a flat elliptical toilet paper roll comparing the product of the present invention with the conventional product. Fig. 37 shows the present invention. Fig. 38 A is a state diagram of a single product of the present invention wrapped, and Fig. 38 B is a parallel diagram of the present invention product in parallel. Fig. 39 is a state diagram of an experiment of compressive load displacement during the manufacture of toilet rolls per parole of the product of the present invention, and Fig. 4 OA is a state diagram of a single product of the present invention packaged. , FIG. 40B is a state diagram in which the product of the present invention is packaged in parallel, and FIG. 41A is a perspective view of a 6-unit toilet toilet with a package according to the present invention. Is a cross-sectional view of FIG. 41A, FIG. 41C is a cross-sectional view of another embodiment different from FIG. 41B, and FIG. Toilet roll with 6 pieces in a state Figure, Figure 42B is a cross-sectional view of Figure 42A, Figure 43A to Figure 43D are diagrams of the state where the conventional flat-shaped twisted paper roll is restored, and Figure 44A is a view of the conventional product. Toilet toilet paper — State diagram for starting the experiment of compressive load displacement during roll production, FIG. 44B is the state diagram of the compression yielding point during the experiment of FIG. 44A, and FIG. FIG. 4 is a state diagram of the final stage of the 44 A experiment. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described with reference to the drawings.

In the first embodiment, as shown in FIGS. 1 and 2, the toilet paper roll is made of a thin paper core 1 made of thin paper having a diameter of about 4 cm, and is wound around the thick cylinder core 1 almost from the beginning to the end. Toilet paper 2. The thickness of the thick tube core 1 in FIGS. 1A, 1C and 2A is thicker than the thickness of the toilet paper 2, but is shown only as a line because it is made of thin paper. This is the same in the following second to ninth embodiments. FIG. 1B particularly shows that the paper thickness of the thick tube core 1 is larger than the paper thickness of the toilet paper 2. The toilet paper roll is a finished product in which the toilet paper 2 is made into a roll, and the toilet paper 2 has an appropriate length including a rolled state or a non-mouthed state. The finished product of toilet toilet roll may be sold while maintaining a circular cross-section as shown in Fig. 1A, and Fig. 1 A flat ellipse because the whole is soft as shown by the chain line C May be sold in a state. FIG. 2C is a partial schematic diagram of FIG. 2A, and the total height H around which the toilet paper 2 is wound. (When no load is applied). That is, a void is formed between the wound toilet sheets 2 and 2 that are wound and stacked.

The thick cylindrical core 1 is made of thin paper having an inner diameter of about 4 cm inside and outside (actually, about 3.8 cm to about 0.5 cm in diameter), and usually about 30 (g / m ² ) (1 It is manufactured by laminating a plurality of sheets of thin paper having a weight of paper per m ^{2 of} about 100 (g / m ² ) to about 100 (g / m ² ) and bonding them with an adhesive. In this way, it cannot be measured only by normal paper weight, so the width and length of one toilet paper roll with a large cylindrical core 1 with an inner diameter of about 4 cm (About 11 cm) was measured per piece. According to this, it was about 1 (g / piece) to about 3 (g / piece) including the weight of glue etc. The material of the thin paper of the thick cylindrical core 1 may include a water-soluble one-size paper and a water-insoluble size paper, or may be only a water-soluble no-size paper. For this reason, when the material of the thick cylindrical core 1 is not limited, it refers to no-size paper and size paper. Further, the tilet paper 2 is a normal size paper which usually weighs about 16 (g / m ² ) to about 23 (g / ra ² ). The diameter of about 4 cm inside and outside includes about 3 cm to about 5 cm in diameter. The material of the thick cylindrical core 1 is generally different from the material of the toilet toilet paper 2. Here, although the thick cylinder core 1 is made of thin paper, about 70 (g / m ² ) to about 100 (g / m ² ) is not generally a concept of thin paper. In particular, in the Honmyo Saisho, cardboard as material for the paper tube core, which is commercially available, i.e., the normal weight of about 200 (g / m ²⁾ to about ² 20 (g / m 2) thick sheet On the other hand, the thick cylindrical core 1 is made of high quality paper or the like, and usually about 30 (g / m ² ) to about 100 (g / m ² ) are made of thin paper. In the second embodiment, as shown in FIG. 3, the toilet paper roll is made up of a thin paper core 1 made of a thin paper having a diameter of about cm, and the toilet paper 1 is hardened for the first few turns and almost soft until the end. , It is a toilet roll that is almost softly wound as a whole. This “wound substantially softly as a whole” is equivalent to the above “wound substantially softly from the beginning to the end”, and the same applies to the case described later. FIG. 3C is a partial schematic view of FIG. 3A, and shows a hardly wound portion H ₂ at the entire height H _q (at no load) around which the toilet paper 2 is wound. illustrates a and part H ₃ which substantially wrapped soft. H ₂ + H ₃ = Ho.

In the third embodiment, the toilet paper roll comprises a thin paper core 1 having a diameter of about 4 cm and a thin paper core. This is a toilet paper roll composed of a generally softly wrapped toilet paper par 2. Specifically, as shown in Fig. 4, the last few turns are wound hard, and all other positions are almost soft. Even with such a winding, it is "wound almost soft as a whole". Although not shown, an intermediate position of the winding of the toilet roll There are cases where several windings are wound hard and all other positions are wound almost soft. Even so, it is "wound almost soft as a whole". Also

FIG. 4C is a partial schematic view of FIG. 4A, and has a total height H around which the toilet paper 1 is wound. (When no load is applied), the portion H ₄ wound substantially softly and the portion H ₅ wound hard. H ₄ + H ₅ = H. Becomes Further, in the fourth embodiment, as shown in FIG. 10 and FIG. 11, the toilet parlor has a thin paper core 1 made of a thin paper having a diameter of about 4 cm, and The toilet core 1 is wound almost softly to the end, and as shown in FIG. 10C, the thick cylindrical core 1 is formed in a flat shape, and the toilet cartridge 2 is also described above. It is formed in a flat elliptical shape so as to follow the flat cylindrical core 1 having a flat shape. In other words, the completed toilet paper roll is shown in Figure 10C. Further, FIG. 1 OA is a semi-finished product immediately after the toilet paper 2 is wound around the thick tube core 1. Also, in the fourth to ninth embodiments of this specification, when simply referred to as the thick cylindrical core 1, a circular one (see FIG. 1OA) or a flat one (see a solid line in FIG. 10C) There is. Further, when simply referred to as a toilet paper 12, it refers to an appropriate length including a mouth state or a non-mouth state.

In the fifth embodiment, as shown in FIG. 12, the toilet parlor is made of a thin paper core 1 having a diameter of about 4 cm inside and outside, and the first few turns of the toilet paper 2 are hard. Thereafter, it is wound almost softly until the end, and almost entirely as a whole, and the thick cylinder core 1 is formed in a flat shape, and the toilet paper 2 also has a flat elliptical shape so as to follow the flat thick cylinder core 1. It is formed. FIG. 12C is a partial schematic diagram of FIG. 12A, and the total height H in FIG. (No load), region Η ₂ and region H ₃ are the same as in FIG. The solid line in Fig. 12A is a semi-finished toilet toilet paper product, and the chain line is a completed toilet toilet paper product.

In the sixth embodiment, as shown in FIG. 13, the toilet paper roll is made up of a thin paper core 1 made of thin paper having a diameter of about 4 cm and a part of the thick cylinder core 1 except for the first part. After the winding is hard, it is wound almost soft, and the whole is wound almost soft, and the thick cylindrical core 1 is formed in a flat shape, and the toilet paper 2 is also flat elliptical so as to follow the flat thick cylindrical core 1. It is formed as follows. Specifically, as shown in Figure 13, The last few turns may be wound hard and all other positions may be soft. Also, the total height H in Fig. 13. (At no load), site H _4, is similar to Figure 4 for sites H _5. The solid line in Fig. 13A is also a semi-finished toilet / roll product, and the chain line is a finished toilet / roll product.

The toilet paper rolls of the fourth to sixth embodiments are manufactured by the following two types of manufacturing methods. First, in the first manufacturing method, first, a perfectly circular thick cylindrical core 1 is inserted into a winding shaft, and in this state, the toilet paper 1 is wound around the thick cylindrical core 1 almost softly from the beginning to the end. At the end of the process, a semi-finished toilet base par-roll assembly (10 or more semi-finished toilet paper rolls with a circular cross-section) will be manufactured. Next, the reel is removed from the toilet paper roll semi-finished product assembly. Then, in the next step, the upper and lower cross sections (see the solid line in FIG. 11A) or both sides of the cross section of the toilet paper roll semi-finished product are pressed to form the cross section of the thick cylindrical core 1 into a flat shape, and The paper 2 is also formed to have a flat elliptical shape so as to follow the flat cylindrical core 1 (see FIG. 11A chain line).

In the second manufacturing method, a pressure is applied to make the entire cross section of the toilet parlor of the fourth to sixth embodiments into a flat elliptical shape, but processing can be performed even with a slight pressure. For this reason, there are cases where toilet products are manufactured with semi-finished toilet rolls, and cases where finished products that are toilet toilets are rolled by pressing both sides with guides on both sides of the packaging process into a flat elliptical shape .

In the seventh embodiment, as shown in FIGS. 15 and 16, the toilet toilet parlor comprises a thin paper core 1 having a diameter of about 4 cm and a thin paper core, and the thick cylinder core 1 from the beginning to the end. As shown in FIG. 15C, the thick tube core 1 has flat bulges 1a, 1a on both sides, and is substantially flat as shown in FIG. 15C. The toilet paper 2 is also formed into a flat elliptical shape so as to follow the flat thick cylindrical core 1. In other words, the finished product, which is a toilet base per roll, is shown in Figure 15C. Fig. 15A is a semi-finished product immediately after the toilet paper 2 is wound around the thick tube core 1. A gap is formed between the wound and laminated toilet papers ₂ and 2 as in the first embodiment. In the eighth embodiment, as shown in FIG. 17, the toilet paper roll is The toilet paper 2 is wound on the thin paper core 1 of about 4 cm in diameter and made of thin paper, the first few turns of which are hard, and then almost soft until the end, and the whole is almost softly wound. Bulges 1a, 1a are formed in a substantially flat shape, and the pellet paper 2 is also formed in a flat elliptical shape so as to follow the flat thick cylindrical core 1. ing. FIG. 17C is a partial schematic view of FIG. 17A, and the total height H in FIG. 17 is shown. (When no load is applied), part Η ₂ and part H ₃ are the same as in FIG. The solid line in Fig. 17A is a semi-finished toilet toilet paper roll, and the chain line is a completed toilet paper roll.

In the ninth embodiment, as shown in FIG. 18, the toilet roll is a thin paper core 1 made of thin paper having a diameter of about 4 cm inside and outside, and a part of the thick cylinder core 1 except for the first part. After several turns are hard, they are almost soft, and are wound almost soft as a whole. The thick cylindrical core 1 is formed in a substantially flat shape with fig-like bulges 1a, 1a on both sides, and the toilet ぺEach of the pawls has a flat elliptical shape so as to follow the flat thick cylindrical core 1. Specifically, as shown in FIG. 18, the last few turns are wound hard and all other positions are almost soft. Also, the total height H in Fig. 18. (At no load), the site Eta _4, is similar to Figure 4 for sites H _5. The solid line in Fig. 13A is also a semi-finished toilet paper roll, and the chain line is the completed toilet paper per roll.

To manufacture the toilet paper roll of the seventh to ninth embodiments, the following

According to two types of manufacturing methods. First, as a third manufacturing method, a flattening apparatus M shown in FIG. 20 is used. The flattening machine M is installed in a cut-out machine N,

-This is a device that is located after the roll semi-finished product assembly is cut into individual toilet paper roll semi-finished products. As a specific manufacturing method, as shown in FIGS. 21 to 23, a circular toilet paper roll semi-finished product is transferred onto the flattening device M, and the conveyor 25 stops at this position. (See Fig. 21A) At the same time, the two hole-expanding round bars 30 and 30 gripped by the gripping portions 31 and 31 at the front side are in the large cylindrical core 1 of the toilet paper roll semi-finished product. It is inserted (see FIG. ₂ 1 B). Next, the rear ends of the hole-expanding round bars 30 and 30 are gripped by the gripping portions 31 and 31 at the rear positions (see FIGS. 21C and 21D). In this state, the hole expanding round bar 30 at the upper position rises. As a result (see FIGS. 21E and 21F), the hole of the thick cylindrical core 1 is deformed into a vertical flat ellipse (see FIG. 22A). In this state, from the left and right of the toilet paper roll semi-finished product, the pressing portions 33, 33 at the tips of the rods 32a, 32a of the hydraulic cylinders 32, 32 (mainly pneumatic cylinders) are moved. Is pressed (see FIG. 22B and FIG. 23), the thick cylindrical core 1 is formed with bulging portions 1a, 1a on both sides (up and down in FIG. 22). 1 as a whole is formed in a substantially flat shape, and the toilet paper 2 also has a flat elliptical shape so as to follow the flat thick cylindrical core 1 and the molding is completed. Then, the grippers 31 and 31 at the front position are separated from each other, and at the same time, the toilet toilet roll-finished product is transferred to the packing machine C side by the moved conveyor 25 (see FIG. 22C). Then, the two hole-expanding round bars 30 and 30 gripped by the grip portions 31 and 31 at the rear position are inverted, and the grip portions 31 and 31 at the rear position are now turned. Are the grip portions 31 and 31 at the front side (see Fig. 22D). Then, the hole-expanding round bar 30 on the upper side descends and returns to the previous position (see Fig. 22E), and now returns to Fig. 21A and flattens the next toilet paper roll semi-finished product. I do. Also, when transferring the finished toilet roll, the curved curve guide 26 and the linear guide 27 maintain the shape of the flat toilet roll. (See Figure 20B). In addition, the front and rear of the flattening apparatus M are transported by a conveyor 23 and held by linear guides 24 on both sides. Next, as a fourth manufacturing method, the flattening apparatus X shown in FIG. 24 is used in place of the flattening apparatus M to manufacture the toilet parlors of the seventh to ninth embodiments. I do. Specifically, the flattening apparatus X is provided with upper and lower pressing support plates 40, 40 and hydraulic cylinders 41, 41 (mainly pneumatic cylinders) on the left and right sides (see FIG. 24A). ). In this work, the rods 41, 41 of the hydraulic cylinders 41, 41 are pressed through the pressing portions 42, 4 at the tips of the rods 41a, 41a, and simultaneously, the upper and lower pressing support plates 40, 4 By supporting at 0 (see Fig. 24B), fig-shaped bulges 1a, 1a are formed on the upper and lower parts of the flattened thick tube core 1 so that the thick tube core 1 as a whole Is formed in a substantially flat shape, and the toilet paper 2 is formed into a flat elliptical shape so as to follow the flat thick cylindrical core 1, thus completing the forming.

The above-described product of the present invention is applied to the toilet shaft, the parlor holder, and the thick shaft portion 10. Used by attaching to The above-mentioned “wound substantially softly from the beginning to the end” or “wound substantially softly as a whole” means that the amount of the gap between the laminated toilet sheets 1 and 2 in the toilet paper roll is When the amount of voids increases, the toilet paper attached to the thick shaft portion 10 of the toilet paper roll holder is pulled out, and the toilet paper roll becomes In particular, even if the thick cylinder core 1 and the thick shaft 10 of the toilet roll holder roll contact irregularly, and the toilet paper mouth rewinding sound is generated, the Around the outer periphery of the tube core 1, there is a toilet paper 2 "wound substantially softly from the beginning to the end" or "whole softly wound as a whole". The sound is not transmitted to the outside due to the gap between the papers, and the sound is muted or reduced (see S in Fig. 5A and Fig. 5B). Further, the toilet core 1 is made of thin paper, and the toilet core 2 is “wound substantially softly from the beginning to the end” or “wound substantially softly as a whole”. When the toilet paper 2 is unwound (pulled) because of its existence, one thick cylinder core of the toilet paper mouth becomes elliptical (see Fig. 5A), and furthermore, Fig. 6A as shown in, now thick portion 1 0 and thickness cylinder core 1 and the adhesion to that axis side point P c _2, the cylinder-side point P o _2, in contact with the shaft-side point not P _{C l,} cylinder There is a side point P (DOO, between the next instant, the shaft-side point P c _2, while in contact with the cylindrical side point P o _2, both axial side point P c barrel side point P _{0 l} becomes contact, As it is in the rotating state, it comes into contact as a surface, and as it is soft, no sound is produced or extremely low when it comes into contact with the surface. As described above, in the conventional cardboard tube core a of toilet paper roll, the point Pc, which is in contact with the thick shaft portion 10 at present, and the point Pc, If there is a cylinder side point P o, at the next moment, the axis side point P c and the cylinder side point P o will contact each other, but the points that have been in contact so far will be separated from each other, and in the rotating state In this point contact state, the unwinding sound of the toilet paper roll is loudly generated, and the disadvantage of the embodiment of the present invention is as follows. I decided.

As described above, in the product of the present invention, it is possible to significantly reduce the unwinding sound of the toilet toilet roll due to the increase in the gap between the toilet toilet rolls 2 and 2. This is because the large and soft surface contact act synergistically.

Further, as shown in FIG. 9, even after the toilet paper roll is used, the thick cylindrical core 1 remaining in the thick shaft portion 10 of the toilet roll holder of a general household or the like is flowed to the toilet. The non-sized paper, which is the material of the thick tube core 1, has the property of dissolving in water. When it contains water, it becomes soft, and the thick tube core 1 is deformed, so that the toilet can be prevented from clogging.

In the product of the present invention, as shown in FIG. 14A, the thick cylindrical core 1 is formed in a flat shape, and the toilet paper 2 also has a flat ellipse so as to follow the flat thick cylindrical core. Even if it is formed in a shape, it can be returned to a substantially perfect circular shape when it is mounted on the thick shaft portion 10 of the toilet toilet paper roll holder 1. This is because the thick core 1 is made of thin paper, and the thin core 1 is made of thin paper, and the toilet core is `` wound almost soft from the beginning to the end '' or `` wound almost soft as a whole ''. When pressure is applied, the pressure is hardly applied, and the soft toilet unit — due to the synergistic action of the par 2 as shown in FIG. 14A to FIG. Can be. The thick cylindrical core 1 is formed in a substantially flat shape with bulging portions 1a and 1a in the form of figs on both sides, and the toilet paper 2 follows the flat cylindrical core 1 as well. Even if it is formed into a flat elliptical shape as described above, when it is attached to the thick shaft portion 10 of the toilet / parrot holder, the bulging portions 1a and 1a on both sides of the It can be returned to a substantially perfect circle without any occurrence.

Fig. 41A shows six toilet paper rolls of the product of the present invention sealed in one ton per ton.Fig. 41B shows the cross section of the one ton per ton. This shows the insertion state of the tile paper roll. Fig. 41C shows the case of a cross section of a carton of a toilet roll, which is formed in a substantially flat shape with the thick cylindrical core 1 having bulging portions 1a, 1a in the shape of figs on both sides. In particular, comparing the carton of the conventional type toilet paper roll of FIGS. 42A and B with the force-ton of the toilet paper roll of the product of the present invention in FIG. It can be seen that the area of the cross section is reduced by about 30 to 40%.

Experimental example 1

In this specification, "substantially softly wound" means that the toilet —When the weight of the measuring weight 21 with a load of 13 kg is applied to the roll, the rate of change of the load is about 36% or more. This was based on the experiment described later.

Load change rate = (H. One H,) / H. X 1 0 0

H Q: Height without load

H,: Height with load of 13 kg of measuring weight 2 1

In the experiment, as shown in Fig. 25B, the toilet toilet of the manufactured product of the present invention was manufactured as follows: a large cylindrical core 1 per mouth, or a paper core or a toilet core of a commercially available toilet paper roll; Insert the measuring shaft ₂₀ into the toilet paper and set it so that the maximum uppermost position of the outer periphery of the thick cylindrical core 1 and the like is at a height of 0. mouth Ichiru toilet bract paper 2 of the maximum top position or at the height of the outer periphery, i.e., the height of the case of no load was H _Q. In addition, the measuring weight 21 with a weight of 13 kg is placed on the unloaded toilet roll 1, and at this time, the measuring weight 2 1 is used between the toilet 2 and the par 1. The height up to the maximum top position of the outer circumference of the toilet paper 2 when the gap became narrow and the height was reduced, that is, the height when a 13 kg load was applied was defined as.

In the experiment, as the measurement data of the rate of change of the load, the product of the present invention (see Fig. 26) and the centered soft winding A (see Fig. 27), which was selected slightly on the basis of the feel, and was selected as appropriate based on the feel ) And cored soft winding B (see Fig. 28), cored ordinary winding with normal hardness of self-winding winding (see Fig. 29), and slightly hardened cored winding (see Fig. 30) , Hard 'rolled coreless hard rolls (see Figure 31) and the H of these multiple samples. And Hi were measured. The measured data are shown in Fig. 26 to Fig. 31. Fig. 25A shows only the maximum load change rate, average change rate, and minimum change rate. When this is made into a comparison graph as shown in Fig. 25C, it becomes as follows.

That is, "hardly wound" means that the load change rate is 0% to about 9%, and "slightly wound" means that the load change rate is about 9% to about 21%. "Wound to hardness" means that the load change rate is about 21% to about 36%, and "Wound slightly soft" means that the load change rate is about 36% to about 49%. %, "Softly wound" means that the load change rate is about 49% or more. As described above, “approximately softly wound” means “softly wound” and “slightly softer”. "Wrapped around"

"Means that the load change rate is about 36% or more at 13 kg load. This value may fluctuate by about 10% depending on the temperature, humidity, atmospheric pressure, etc., when the toilet parlor is placed.

In addition, (H.I Hi) according to the above equation also represents the void amount between the laminated toilet papers 1 and 2 in the toilet paper roll, and the load change rate according to the above equation is the porosity. It can be said that it is almost equivalent. Therefore, when the porosity is about 36% or more, it can be said that "the coil is wound almost softly". The point to be noted here is the case where the load is 13 kg. For example, in the case of an 18 kg measuring weight 21, the value of (H.) is large, so that the load change rate is large for each of the winding types, and about 40% of the load change rate. The above is described as "substantially softly wound". For example, in the measuring weight 21 with a load of 7 kg, the value of (H. _H,) is small. The load change rate becomes smaller, and about 30% or more of the load change rate is "approximately softly wound".

Experimental example 2

Further, in the experiment of measuring the unwinding sound of the toilet roll of the embodiment of the present invention shown in FIG. 32, the toilet paper roll of the embodiment of the present invention is a toilet toilet having a conventional ordinary cardboard core. It is clear that it is much quieter than one parlor. In a specific experiment, the thick cylindrical core 1 relating to the product of the present invention was made of thin paper having an inner diameter of about 3.8 cm, and the length of the toilet paper roll (about 11 cm) per one piece. weight is about 1. 6 (g / present), which is about 5 0 weight thin two of (g / m ²⁾ are formed by superimposed and twisted as appropriate. As the material of the thin paper of the thick cylinder core 1, a water-soluble non-sized paper was used. As a conventional product, a so-called cored ordinary roll toilet paper roll was used, in which the hardness was normally wound around a cardboard core with an inner diameter of about 3.8 cm. In addition, the outer diameter of both the toilet paper roll of the product of the present invention manufactured using the “softly wound” toilet paper 2 and the conventional cored ordinary wound toilet paper roll are both omitted. At about 110 minutes, it is attached to the thick shaft section 10 of the one-touch toilet paper mouth holder for ordinary households, and the lid of the toilet paper roll holder is attached. Then, the contact noise between the lid and the toilet paper was eliminated to measure the unwinding sound generated when the toilet paper was pulled out. The sound collecting sensor was installed at a position of about 5 Ocm, lm, 1.5 m from one place of the toilet paper roll holder. At this time, even if the speed at which the toilet paper is rewound is constant, the roll of toilet paper is rewound from the outer peripheral side. Therefore, in order to gradually increase the speed, measurements were taken at three locations: the outer circumference, the middle, and the center (on the side of the thick cylinder).

As shown in the table in Fig. 32, the noise became as low as 12 dB (decibel) to 17 dB at any position of the outer periphery, middle, and center (thick core side). In particular, toilets and the like are usually separated from others by at least lm, and when these are averaged, the cored ordinary winding of the conventional product is approximately 65 dB, and the product of the present invention is approximately It was 53 dB. Even though it is only 12 dB less, dB is the logarithm of the loudness of the sound, and the difference of 10 dB is as much as 10 times the loudness of the sound. That is, the difference of 12 dB is about 16 times as loud, about 20 times at 13 dB, about 25 times at 14 dB, and about 15 times (about 32 times at 18 and about 32 times at 18 dB. At 40 times and 17 dB, there is a marked difference of about 50. When the graph of Fig. 32 is graphed, it becomes as shown in Fig. 33, and the toilet paper roll between the conventional product and the product of the present invention is shown. The difference between the rewind sounds is obvious, and as shown in Fig. 34, referring to the comparison table of noise levels and familiar sounds, about 65 dB is noisy for ordinary conversation. Although it is located midway between office and telephone sounds, about 53 dB of the product according to the present invention is a sound close to a quiet office. Therefore, when the product of the present invention is used, the unwinding sound of the toilet paper roll is extremely low, and even women can use it with ease and ease. .

Experiment 3

Fig. 35 is a displacement diagram of the compressive load of the paper tube (paper tube core, thick tube core 1 of the present invention, etc.) of the toilet paper roll. The large cylindrical core 1 of the product according to the present invention has an inner diameter of about 3.8 cm, and the weight of one toilet paper roll (about 11 cm) is 1.0 (g / g). ), 1.6 (g / piece), 2.0 (g / piece), 2.4 (g / piece), and 3.0 (gZ pieces). The conventional cardboard core is 5.9 (g / Book), 6.4 (g / book) were used, and water-soluble, non-size paper was used as the material for the thin paper of the thick core 1. The above 1.0 (g / piece), 1.6 (g / piece), 2.0 (g / piece), 1.4 (g / piece) and 3 '· 0 (g / piece) are respectively Weight of about 30 (g / m ² ), about 50 (g / m ² ), about 65 (g / m ² ), about 80 (g / m ² ), and about 100 (g / m ² ) The two thin papers are appropriately twisted and overlapped. In addition, 5.9 (g / piece) and 6.4 (g / piece) are two thick paper sheets weighing about 200 (g / m ² ) and about 220 (g / ra ² ), respectively. It is twisted and overlapped. In this experiment, the paper tube compression load of the toilet paper roll when the height of the thigh is deformed by applying a load to the thick tube core 1 or the paper tube core with an inner diameter of about 3.8 cm The figure was determined.

As a result, as shown in the table of FIG. 35, in the thick tube core 1 of the product of the present invention of 2.0 (g / piece), the conventional cardboard paper cylinder of 6.4 (g / piece) was used. It can be pressed with a pressure (N) of about 1/20 compared to the core. As described above, it is possible to easily crush the thick tube core 1 with an extremely small force as compared with the conventional cardboard core (see FIG. 8). Further, from FIG. 35, about 3 (g / piece) of high quality paper is understood to be a category of the thin paper core 1 of the present invention. Also, the weight of the thick tube core 1 varies by about 10 to 20% depending on the amount of glue, and about 4 (g / piece) of high quality paper can be added to the thin paper core 1 of the present invention. May be included.

Experiment 4

FIG. 36 is a diagram showing the displacement load distribution diagram of the toilet roll of the toilet according to the fourth to ninth embodiments when manufacturing the toilet roll of the present invention. The large cylindrical core 1 of the product according to the present invention has an inner diameter of about 3.8 cm, and the weight of each toilet paper roll (about 1 icm ₎ is 6 (g / g). The book used was a soft roll with an outer diameter of about 11 cm. In addition, the commercial product a has a cardboard core with a core weight of 6.4 (g / piece), a cored ordinary coil with an outer diameter of about 11 cm, As the product b, a cardboard core with a weight of 5.9 (g / piece), a cored soft roll and an outer diameter of about 11 cm is used.

In the experiment, the displacement was measured while applying a compressive load. In this specification Although there is an error of about 2%, l kgf is set to 1 ON (Newton). Then, as shown in FIG. 36, when a compressive load was gradually applied to the circular commercially available product a, approximately 5 N was applied and the product was displaced by approximately 8 mm, and approximately 10 1 ^ was displaced by approximately 1 mm. Displaced 4 mm. Furthermore, it deforms by about 15 mm at the maximum compressive load of about 10.5 N (see the state of Fig. 44B), and thereafter the displacement increases even if a compressive load that does not increase beyond the maximum compressive load is applied. The core of the paper cylinder became flat at a position where the displacement was about 50 mm at about 9.5 N, and the toilet vapor was formed in a flat elliptical shape (see the state of FIG. 44C). In addition, in the circular market mouth α b, about 20 N was added and the reference was displaced, and about 10 N was displaced by about 30 N. Furthermore, when the maximum compressive load of about 10.5 N is applied, the thigh deforms (see the state of Fig. 44B), and thereafter the displacement increases even if a compressive load that does not increase beyond the maximum compressive load is applied. Then, at about 9.9, the core of the paper cylinder became flat at a position of about 60 thigh displacement, and the toilet paper was formed into a flat elliptical shape (see the state of FIG. 44C). By the way, the point at which the displacement increases without increasing the tensile load in the tensile test is defined as “yield point” in JIS terms. In particular, in the product of the present invention, although it is a compression displacement test, the displacement increases without increasing the compression load from the point of the maximum compression load. It is referred to as "compression yield point". In this compression displacement test, the height of the circular shape of the commercially available products a and b before deformation is Υ. When the height became flattened elliptical shape is compressed has a Y ₂ (see FIG. 4 4).

In the product of the present invention, as shown in FIG. 36, when about 1 mm was added to a semi-finished circular toilet paper roll, 18 ram was displaced and 30 N was displaced at 2 N. Further, at the time of the maximum compressive load of about 4 N, the displacement amount is about 42 deformed and the thick tube core 1 is flattened at this point, and the toilet paper 2, 2, ... is formed into a flat elliptical shape. You. In this compression displacement test, the height of the circular shape of the product of the present invention before deformation is indicated by Υ. Then, the height of the flattened ellipse obtained by compression is as follows, and the height is not compressed than the above Y ₂ , and the height Υ,> height Υ ₂ (Figs. 37, 39, 39) 4 4). Further, in the product of the present invention, there is no compression yield point. In particular, the displacement amount of the commercially available products a and b is large as a whole from FIG. 44B to FIG. 44C, that is, because the cardboard core is hard in the compression process, When the cylinder core is pressed flat, a large force is required at the location of the diamond-shaped ellipse. The lower laminated toilet papers 2,,… are also pressed together to compress (see Fig. 44B). The maximum value at this time is called a predetermined value, and the position of the predetermined value is called a compression yield point (see FIG. 36). From the compressive yield point K, the toilet toilet roll semi-manufactured a 1: applied to the predetermined value (approximately 10 mm in the graph of FIG. 36, 1.05 kgf inside and outside). The displacement increases without increasing the pressure. At this time, the paper tube core becomes flat, and the toilet paper becomes more flattened and becomes a flat elliptic dog.

As shown in FIGS. 38 and 40, the pressure (compression load) is applied to make the thin paper core 1 made of thin paper into a flat shape, and to form the softly wound toilet paper 2, 2,. ) Is small, the repulsive force f, f,... For returning to the circular old position is also small, and the packaging enclosed in the bag 50 can be simplified. According to the product of the present invention, the pressing force is only about 4 N at the time of making the toilet papers 2, 2,... Into a flat elliptical shape. . In addition, production can be simplified even at around 5 N.

As described above, according to the present invention, the unwinding sound of the toilet paper roll can be significantly reduced. That is, the toilet roll of the present invention is mounted on the thick shaft portion of the toilet paper roll holder of a general household or the like, and the thick shaft portion comes into contact with the thick cylindrical core while rotating, and the contact comes from there. Even if a sound or rubbing sound is generated, the thick cylindrical core is made of thin paper, so that it rotates so as to fit and comes into surface contact, and the outer periphery of the thick cylindrical core is “approximately softly wound”. The presence of paper and the presence of voids between the laminated toilet papers will mute or reduce the sound without transmitting to the outside. This was clearly demonstrated in the experiments in Figs. 32 and 33. In this experiment, there is a reduction in the rewind sound of about 12 dB to about 17 dB, but in practice, almost no sound can be heard. As a result, it is possible to eliminate the unwinding sound of rattles and the like during use of toilet paper in the toilet, and to provide a silent paper roll of a quiet specification that can be used with peace of mind especially for women and the like. .

Further, in the present invention, since the thick cylinder core is made of thin paper, unlike a conventional cardboard core, the strength is extremely low. After using the parlor, the large cylindrical core remaining on the thick shaft portion of the toilet paper roll holder of a general household or the like can be easily crushed (see FIG. 8) to reduce household waste. In addition, there is an advantage that it can be discarded as general waste. Further, since the core is made of a thin cylinder made of thin paper, the paper core is made thinner and the amount of paper is smaller than that of a conventional core made of ball paper, so that the unit cost of the cylinder core itself can be reduced. As a result, there is an advantage that the entire trickle paper roll can be reduced in cost. In addition, soft coreless toilet parlors are present in some places, but the glued tube core has a damaged appearance, making it difficult for the general public to permeate. The manufacturing machine that manufactures this soft-type coreless toilet roll is a special machine with special specifications, and the toilet roll

—Although the roll product had the disadvantage of being extremely expensive, in the present invention, the appearance is substantially the same as that of a normal paper cylinder core, and its product value can be significantly improved. In addition, it not only has a good noise reduction effect and good trash control, but also has the effect of lowering the product price.

Further, in the present invention, even if the used thick core is poured into a toilet, it is possible to avoid clogging of the toilet because the thick cylindrical core made of no-size paper is soluble in water. Further, when the toilet roll of the present invention has a flat elliptical shape, the space can be greatly reduced as compared with the conventional round toilet roll, and the storage and transportation costs can be reduced. is there.

Industrial applicability

According to the present invention, the rewinding sound is significantly reduced even when the toilet roll is attached to the thick shaft portion of a general household toilet paper roll holder, and the large cylindrical core of the toilet roll is easily crushed and discarded to dispose of it. Can be manufactured satisfactorily, and the core of the thick cylinder can be manufactured at a low cost. As a result, the manufacturing price of the toilet pallet can be reduced, and the core of the thick cylinder can be poured into the tray. Furthermore, the toilet paper unit has been commercialized as a flat elliptical shape, making it possible to reduce storage costs, transportation costs, etc., and to make it a substantially circular cross-section when used, so that it can be used satisfactorily. Can be used.

Claims

The scope of the claims

1. A toilet paper characterized by comprising a thin paper core having a diameter of about 4 cm and a thin paper core, and a toilet paper wound around the thick core in a soft manner from the beginning to the end. Nore.

2. It consists of a thin paper core with a diameter of about 4 cm, made of thin paper, and a toilet paper wound around the core with the first few turns hard and then almost soft until the end, and almost soft as a whole. A toilet roll characterized by that.

3. A thin paper core with a diameter of about 4 cm and a thin paper core, and a toilet wrapper wound around the core with a small number of windings except for the first part, which is hard and almost soft, and almost soft as a whole. A toilet paper roll characterized by becoming.

4. The toilet parlor according to claim 1, 2 or 3, wherein the thick cylindrical core is made of one size paper.

5. It consists of a thin paper core with a diameter of about ⁴ cm and a thin paper core, and a toilet paper that is wrapped almost softly from the beginning to the end of the thick core, and the thick core is formed in a flat shape. A toilet paper roll, wherein the toilet paper is also formed in a flat elliptical shape so as to follow the flat thick cylindrical core.

6. A thin paper core having a diameter of about cm and a thin paper core, and toilet paper that is wound around the core with the first few turns hard and almost soft until the end, and generally soft as a whole. A cylindrical core formed in a flat shape, and the toilet paper also formed in a flat elliptical shape so as to follow the flat large cylindrical core; .

7. A thin paper core with a diameter of about 4 cm and a thin paper core, and toilet paper that is wound around the core with a few turns except for the first part hard and then almost soft, and as a whole, almost soft. The toilet, characterized in that the thick cylindrical core is formed in a flat shape and the toilet seat is formed in a flat elliptical shape so as to follow the flat thick cylindrical core.ぺ one roll.

8. When the toilet paper is formed into a flat elliptical shape, the amount of displacement can be increased without increasing the pressing force any more when a predetermined value of compressive load is applied to the semi-finished toilet base parlor. 6. The method according to claim 5, wherein the compressive yield point does not exist and the displacement is increased only with respect to the pressing force that gradually increases under half of the predetermined compressive load. The toilet and soot parlor described in 6 or 7.

9. A thin paper core with a diameter of about 4 cm and a thin paper core, and a toilet unit that is wrapped almost softly from the beginning to the end of the thick cylinder core, and the thick cylinder core has fig fruits on both sides. And the toilet toilet paper is formed in a flat elliptical shape so as to follow the substantially flat thick cylindrical core. Toilet toilet. One ronore.

10. A thick paper core made of thin paper with a diameter of about 4 cm, and a toilet paper that is wound around the thick core with the first few turns hard and almost soft until the end, and almost soft as a whole. The thick cylindrical core is formed in a substantially flat shape having a fig-shaped bulge portion on both sides, and the toilet paper is also formed in a flat elliptical shape so as to follow the substantially flat thick cylindrical core. A toilet roll that is characterized by being made of.

11. A thin paper core with a diameter of about 4 cm and a thin paper core, and a toilet paper that is wound around the core with a few turns and then almost soft, and as a whole, almost soft. The thick tube core is formed in a substantially flat shape having a fig-shaped bulging portion on both sides, and the toilet paper is formed in a flat ellipse shape so as to follow the substantially flat thick tube core. A toilet parlor characterized by being formed.

12. In claim 9, 10 or 11, when the toilet paper is formed into a flat elliptical shape, and when a predetermined compression load is applied to the toilet paper roll semi-finished product. However, there is no compression yield point at which the displacement increases even if the pressing force is not further increased, and the displacement only increases with the pressing force gradually increasing at less than half of the predetermined value of the compressive load. A toilet tray characterized by being formed.

13. A semi-finished toilet paper roll consisting of a thin paper core having a diameter of about 4 cm and a thin paper core and a toilet paper par- tially wound around the thick cylinder core as a whole is manufactured. At a substantially outer diameter position of the toilet paper roll semi-finished product, it is fixedly supported by a pressing support plate facing the outer end, and a pressing portion at the tip of the hydraulic cylinder is viewed from both directions substantially orthogonal to the interval direction between the pressing support plates. At the approximate center position of the toilet paper roll semi-finished product to form a fig-shaped bulge at both end positions of the substantially flat thick cylindrical core, while the entire thick cylindrical core is substantially flat. And a toilet paper roll is formed into a flat elliptical shape so that the toilet paper follows the substantially flat thick cylindrical core.

14. A semi-finished toilet roll consisting of a thin paper core having a diameter of about 4 cm and a thin paper core and toilet paper wound substantially softly as a whole on the thick core is manufactured. Inserting and expanding the two hole-expanding round rods into the thick-tube core, and forming the thick-tube core into a flat elliptical shape from both sides in a direction perpendicular to the interval between the two hole-expanding round bars. Pressing through a cylinder to form a fig-shaped bulge on both sides of the thick cylinder core, and forming the whole of the thick cylinder core in a substantially flat shape, the toilet toilet paper is also in the substantially flat shape. A method for manufacturing a toilet bowl, characterized in that it is formed in a flat elliptical shape so as to follow the cylindrical core.