JP2899495B2 - Method for producing roll paper for toilet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing roll paper for toilets, and more particularly to a method for manufacturing a coreless roll paper having no core tube at the center.

[0002]

2. Description of the Related Art A hole for inserting a shaft of a roll paper holder provided in a toilet must be formed in the center of a toilet roll paper. by the way,
A conventional general toilet roll paper is formed by winding a web around a paper core tube.

[0003] In recent years, a shaft body (generally called an air shaft) which can be reduced and expanded in the radial direction is used.
After the web is wound in a state where the shaft is expanded, the shaft is reduced (a gap is formed between the outer surface of the shaft and the inner surface of the hole of the roll paper). 2. Description of the Related Art A manufacturing method is known in which a roll paper for a coreless toilet without a core tube is manufactured by removing the roll paper from a hole in the paper (see, for example, JP-A-4-55250). Further, in this known method for producing a coreless roll paper, a long shaft is used, and a wide web having a length corresponding to a plurality of product widths is wound around the shaft, and the long web is wound. Roll paper is formed. In addition, in such a coreless roll paper, it is preferable to keep the shape of the center hole as circular as possible because the axis of the holder is inserted into the center hole.

In the above-mentioned known method of manufacturing a coreless roll paper, in order to maintain the shape of the center hole of the roll paper in a circular shape, an aqueous solution containing an adhesive is sprayed onto a web winding start end while the web is wound. This is performed by winding the winding start end around the outer peripheral surface of the shaft body and bonding the webs that polymerize inward and outward with the aqueous solution. Also, if the web winding start end is bonded with an aqueous solution in this way, the web and the shaft are stuck together while the web winding start is wet, so even if the shaft is However, the shaft body cannot be pulled out properly, and therefore, the work of pulling out the shaft body is performed after the web winding start end is dried to some extent. The inner and outer polymerized webs at the web winding start end side become hard enough to withstand use if the wetted portion is dried by the aqueous solution (the shape retention of the center hole of the roll paper is secured).

[0005]

However, in the above-mentioned general toilet roll paper with a core tube, the cost of the core tube portion is increased, and the core tube remains after the web is used. There is a problem that it takes a lot of time to dispose because the toilet cannot be flushed.

In the above-mentioned known method for producing a coreless roll paper (for example, disclosed in JP-A-4-55250),
Although a shaft body (generally called an air shaft) that can be reduced and expanded in the radial direction is used, this shaft body is very expensive, and the shaft body is pulled out from the center hole of the roll paper. When removing, the aqueous solution attached to the vicinity of the end of the web winding can be removed only after drying to a certain extent.
(Approximately 40 minutes)), the shaft could not be used for the next web take-up, and the restraining time of the expensive shaft for drying was long. In particular, since the shaft body is of a considerably long length, and a wide web for a plurality of products is wound around the shaft body, the moisture adhering to the vicinity of the end of the web winding starts. When drying, the moisture near both ends in the longitudinal direction is released into the outside air in a relatively short time, but it takes a long time for the moisture near the middle in the longitudinal direction to be released into the outside air. Therefore, it takes a long time to dry the whole water, and the restraining time of the shaft body is further increased. Further, in general, the web winding capacity in the web winding process is naturally much larger than the processing capacity obtained from the drying time of the web winding start end, and the number of shafts corresponding to the web winding capacity is required. However, there is a problem that considerably high equipment cost is required only for the shaft body.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, a first object of the present invention is to make it possible to manufacture a coreless roll paper using an inexpensive core.
It is a second object of the present invention to easily and quickly dry the liquid adhered to the web winding start end.

[0008]

According to a first aspect of the present invention, there is provided a method for manufacturing a toilet roll paper, the outer diameter of which is substantially the same as the inner diameter of the center hole of the toilet roll paper, and which is deteriorated even when it comes into contact with water. Using a core formed of a tubular body made of a material not to be used, a liquid for adhering a web is sprayed around the core at first to a predetermined small length range of the web winding start end. A web winding step of sequentially winding a web of a product length on the outside of the web to form a web wound body, and attaching the web core around the core while forming the web wound body. The web winding body is retained by the retaining means for a period of time for the liquid adhering to the web winding start end to be naturally dried to such an extent that the core can be removed from the web winding body with the core, and then the web winding is started. Dryer to dry the liquid attached to the edge And, it is characterized by performing the coring process to remove Remove the core from the winding core with the web winding body of the dried.

Further, the method of manufacturing a toilet roll paper according to claim 2 of the present invention is characterized in that the toilet roll paper has an outer diameter substantially the same as the inner diameter of the center hole of the toilet roll paper and the axial direction per product of the toilet roll paper. Using a core made of a tubular body having the same length as the length and not deteriorating even when it comes into contact with water, and a web of a web having the same width as the length of the core around the core. The winding start end is wound while spraying a liquid for web bonding onto a predetermined small length range of the web winding start end, and then a web of a product length is sequentially wound around the outside of the web winding body. Forming a web wound around the core, and retaining the web wound body with the core with the web wound around the core by means of a stagnation means. Until the core can be removed from the cored web roll A drying step of drying the liquid adhered to the web winding start end while remaining for a period of time for drying, and a core removing step of removing the core from the dried web wound body with the core are performed. Features.

Further, the method for producing a toilet roll paper according to claim 3 of the present invention is characterized in that, in claim 1 or claim 2, the roll core is made of a tubular body having air permeability in the inward and outward directions. And

Further, the method for producing a toilet roll paper according to claim 4 of the present invention is directed to any one of claims 1 to 3.
In the above item, the staying means is characterized in that a web winding body with each core is sequentially moved from the inlet to the outlet of the staying means.

[0012]

According to the first aspect of the present invention, in the web winding step, the web winding start end is wound around the core while spraying a liquid for bonding the web to the web winding end. However, when the liquid is sprayed on the web winding start end in this manner, the webs in the portions wetted by the liquid come to adhere to each other. That is, a toilet web is mainly composed of highly hydrophilic cellulose. When the web is polymerized in a state of being wetted with a liquid, the hydroxyl groups (OH groups) in the cellulose are changed and the cellulose molecules are hydrogen-bonded to each other. The webs will adhere to each other. still,
The length range of spraying liquid at the beginning of the web winding is
The process is continued from the time when the web winding start end is wound once around the core, for example, until the time when the web winding end is wound several times (for example, about 3 to 5 times) around the core. Will be
In addition, the water that has wet the web at that time sequentially permeates and diffuses into the web that is polymerized inward and outward.

When a product length web is wound around the core, the web winding body is cut off from the web, and the web winding body with the core is removed from the web winding device.
In this state, the vicinity of the web winding start end is still wet, and if the core is pulled out as it is, the web winding start end will lose its shape or break, and must be used as a product. Can not.

The web wound body with a core formed in the web winding step is dried in a drying step. In this drying step, the liquid adhered to the web winding start end by the stagnation means is attached to the core wound web. It is retained for a period of time for natural drying (for example, about 30 to 40 minutes) to such an extent that the core can be removed from the wound web. In this manner, when the web wound body with the core wetted at the web winding start end is retained for a predetermined time by the retaining means, the water wetted at the web winding start end is sequentially deposited on the web which is polymerized inward and outward. As it permeates and diffuses, it evaporates into the outside air from both sides of the wound web. Then, when the vicinity of the web winding start end portion containing water is dried, the inner and outer polymerized webs in the swollen state are firmly fastened to each other in an adhesive state. In this state, the plurality of webs near the end of the web winding are tightly integrated to maintain a cylindrical shape, and furthermore, an adhesive action by moisture is formed between the inner surface of the cylindrical portion and the outer surface of the core. Is almost gone.

In the core removing step, the core may be removed from the dried web wound body with the core by, for example, a punching method. In the coreless roll paper manufactured in this manner, a relatively hard cylindrical portion is formed at the center, and a cylindrical hole is secured inside. In addition, in this coreless roll paper, the web of the tubular portion at the center can be unwound and used, and the web of the tubular portion is easily dissolved by immersing it in water. There is no problem. The core removed from the web winding body is carried to the web winding step and used repeatedly.

In the invention of claim 2 of the present application, a roll core having the same length as the axial length of one roll of toilet paper per product is used, and the roll is wound around the roll core. Since a web having the same width as the length of the core is wound to form a web wound body with a core, which is separated into individual products, the length of the web wound body with the core per one piece is determined. (For example, the axial length is 110 to 120 mm
In the natural drying by the staying means, the time required for the moisture moistening the web winding start end near the axial middle portion to move to each end face of the web winding body is shortened. In other words, the drying time of the moisture at the end of the web winding becomes shorter.

Further, in the invention according to the third aspect of the present invention, since the core has air permeability in the inward and outward directions, the moisture that wets the start end of the web when the air is naturally dried by the staying means is removed from the tube wall of the core. And is also released from the space in the pipe.

According to the invention of claim 4 of the present application, in the drying step, each web roll with a core moves from the inlet to the outlet of the staying means, so that the web roll with the core is moved to the inlet of the staying means. Can be sequentially moved to the outlet of the staying means while drying naturally.

[0019]

According to the method for manufacturing a toilet roll paper according to the first aspect of the present invention, since it is possible to use an inexpensive core, the equipment cost can be reduced even when manufacturing a coreless roll paper. In addition, in the drying step, since the air is naturally dried for a predetermined time by using the staying means, special energy such as heating is not required to dry the web wound body wet with water, There is an effect that the operating cost can be reduced.

Further, according to the method of manufacturing a toilet roll paper according to the second aspect of the present invention, a web having the same product width is wound around a core having a product width in advance and separated into individual products. Since the web wound body with the wound core is formed, the axial length of the web wound body with the wound core is shortened, and in the drying step, the moisture that wets the web winding start end portion is exposed to the outside air. The time required for the core to be released (drying time) is shortened, the time required to bind the core for drying can be shortened, the total number of cores used can be reduced, and roll paper is commercialized. This has the effect of reducing the time required for

Further, according to the method for manufacturing a toilet roll paper according to the third aspect of the present invention, since the core having air permeability in and out is used, the web winding start end is wet in the drying step. Moisture passes through the tube wall of the core and is also released from the space inside the tube, thereby shortening the drying time. (The total number of cores used can be reduced, and the time required for commercializing roll paper is reduced.) Can be shortened).

Further, according to the method for manufacturing a toilet roll paper according to claim 4 of the present application, a web winding body with a core is moved from the inlet to the outlet of the staying means as the staying means. Therefore, there is an effect that the web winding body with each core can be dried sequentially and continuously.

[0023]

When PREFERRED EMBODIMENTS Referring to FIGS. 1-9 illustrating an embodiment of the present invention, in the manufacturing method of the toilet roll paper in this embodiment, the web winding that winds the web T ₂ around the winding core Q The drawing step, a drying step for drying the web winding body R with the core Q, and a core removing step for removing the core Q from the dried web winding body with the core are performed. The coreless roll paper R as shown in FIG. 9 is manufactured. Before describing the manufacturing method of this embodiment, the configuration of the devices used in this embodiment will be described.

FIG. 1 shows an entire production line for coreless roll paper. In FIG. 1, reference numeral 1 denotes a web winding device that forms a web winding body with a core by winding a web of a product length around a winding shaft (see FIG. 2). still,
In the illustrated example, a total of three web winding devices 1 are arranged side by side. Reference numeral 2 denotes a web-winding device with a winding core for removing the web-winding material P with each winding core from the winding shaft U of a web-winding material Y with a winding shaft (see FIG. 3) described later. Reference numeral 4 denotes a staying device that stays for a predetermined time in order to dry the moisture attached to the web winding start portion as described later (see FIGS. 5 to 7). Incidentally, the staying device 4 corresponds to a staying means in the claims. Reference numeral 5 denotes a core removing device (see FIG. 8) for removing the core Q from the web winding body P with a core. Reference numeral 6 denotes a cored web wound body R.
(See FIG. 9) is a packaging machine for packaging a predetermined number of packages together.

The core Q has an outer diameter (for example, the outer diameter is about 30 to 50 mm) which is substantially the same as the inner diameter of the center hole of a commercially available toilet roll paper, and does not deteriorate even when it comes into contact with a liquid. It is formed of a tubular body. Also, the core Q
Is formed with a hole Qa (see FIG. 4). The core Q is preferably made of metal, wood, synthetic resin, or the like, and has durability even when used repeatedly. Further, it is also preferable to form a coating (for example, a Teflon coating) on the outer peripheral surface of the core Q to facilitate the core removal (make it slippery) at the time of the core removal operation described later.

The core Q used in claim 2 of the present application is:
The same length as the web width of the product is used. Further, the core Q used in the third aspect of the present invention has a tubular body having air permeability in the inward and outward directions.
In addition, as a structure for providing this air permeability, a core Q
A large number of micro holes (for example, holes having a diameter of about 1 mm) penetrating in the inward and outward directions were formed on the entire surface of the tubular body, or a large number of fine communication passages communicating the inside and outside of the tube wall in a sponge shape at the time of forming the tubular body. It may be something.

As shown in FIG. 3, a plurality of (for example, 16) cores Q are inserted and used outside one common axis V in a single row. Each of the winding cores Q, Q,... Is detachably mounted on the common shaft V, and is used as one shaft body (winding shaft) U at the time of use.

This winding shaft U has a large number (for example, 16) of cylindrical winding cores Q, Q,... Externally fitted outside one common shaft V, and both ends of the common shaft V Caps (retaining members) W ₁ and W ₂ are respectively fitted and formed. In FIG. 3, the right side of the cap W ₁ is common axis V
, And the cap W ₂ on the left side is detachable from the common shaft V. And the left cap W ₂
Are separated from each other, the cores Q, Q,.

The web take-up device 1, as shown in FIG.
The wide continuous web T ₁ unwound from the raw roll S is divided by the product width (for example, divided into 16) by the slitter 11, and the divided web T ₂ is supplied to the winding unit 12. The winding shaft 12 as shown in FIG. 3 is sequentially supplied to the winding unit 12 one by one.

[0030] The winding shaft U is supplied to a predetermined position of the winding section 12, the split web T ₂ respectively each winding core Q, Q ·
・ Wound at a position corresponding exactly to Further, when the winding start portion of each split web T ₂ is started around the take-up shaft U, atomized liquid to a predetermined small length range of the web winding start portion from the nozzle 13 as shown in FIG. 2 Sprayed on.
This liquid is used for bonding the webs at the beginning of the web winding that polymerize inward and outward. Then, the winding unit 12, each winding core Q of the winding shaft U, the split web T ₂ of the respective product lengths around Q · · is wound,
After the winding operation of the web winding device 1 is stopped and the web winding body X with the winding shaft formed at the winding portion 12 is discharged to the temporary receiving portion 14, the web is cut by the blade 16 of the cutting device 15. At the same time as the web is separated from the continuous web, the cut end of the web winding body is glued by a gluing device (not shown), and the cut end is adhered to the outer surface of the web winding body. (The web winding body Y with a winding shaft shown in FIG. 3 is formed). continue,
The separated web wound body Y with a take-up shaft is discharged onto the conveyor 117. In the production line of FIG. 1, three web winding devices 1 are arranged in parallel, and each of the web winding devices 1 manufactures a web winding body Y with a winding shaft individually.

Each of the web take-up devices 1 to the conveyor 11
Web wound body Y with winding shaft discharged on 7 (FIG. 3)
After the left cap W ₂ is removed by the winding core with the web wound body vent release device 2, each winding cored web wound body P, is P · · disengaged disconnect automatically from the common axis V. Winding axis U
Web wound body P with each core removed from
Are separated from each other as shown in FIG. 4 and are sent back in a single row on each conveyor 117.

From the end of the conveyor 117, the web winding bodies Z, Z each having a row of cores in a group (for example, 16 web winding bodies with cores P are arranged in a line).
(See FIG. 4) are sequentially supplied to the staying device 4 side.

As shown in FIGS. 5 to 7, the staying device 4 sequentially receives the web winding bodies Z with a row of cores conveyed by the conveying conveyor 117 and stays there for a predetermined time. This is for naturally drying the moisture attached to the web winding start end. This staying device 4
Is a length capable of holding a plurality of (for example, 16) web wound bodies P with a core in a line between a pair of endless chains 41, 41 arranged at predetermined intervals in the horizontal direction. A large number of trough-shaped receiving members 42, 42,... Are interposed at predetermined regular intervals (for example, at intervals of 20 to 30 cm), and the endless chains 41, 41 are circulated by motors 43, 44. . Each endless chain 41, 41,
By winding up and down a large number of sprockets sequentially in a zigzag manner, a large number (for example, 200
(Up to 300) receiving members 42, 42,...

The web winding bodies Z, Z,... Each having a row of cores conveyed to the end of the conveyer 117 are sequentially put into the empty receiving member 42 in the staying device 4. After moving the charging device 45 and the inside of the staying device 4 for a predetermined time (for example, 20 to 40 minutes), the web wound body Z with the row of cores is continued from the receiving member 42 to the coring device 5 side. Discharging device 46 for discharging onto the conveyor 141
And The length and circulation speed of the endless chains 41, 41, the number of receiving members 42, and the like are determined by the web winding body P with a core in each web winding device 1, 1, 1 side.
Is appropriately set in view of the production speed of the above and the necessary time for retaining the moisture of the web winding body P with the core in the retaining device 4 until a predetermined dry state is obtained. When the web winding body Z with a row of cores is discharged onto the conveyor 141 by the discharging device 46, the water content of the web winding bodies P, P,. The core Q is dried to such an extent that the core Q can be removed from the web roll R. This type of staying device 4 is known, for example, as disclosed in Japanese Utility Model Laid-Open No. 2-69607.

The dried web wound body Z with a row of cores coming out of the staying device 4 is sent to the coring device 5 by a conveyor 141, where each web wound body P with a core is wound.
The core Q is successively removed from the core to form a core-removed web wound body (coreless roll paper) R shown in FIG. The centering device 5 of this embodiment employs a device in which the pressing piece 52 is moved up and down by an air cylinder 51 as shown in FIG. The outer diameter of the pressing piece 52 is equal to or slightly smaller than the outer diameter of the core Q. The centering device 5 positions the web winding body P with a core to be centered immediately below the pushing piece 52 in the advance direction.
The pressing piece 52 is moved downward, and the core Q is pressed by the pressing piece 52, so that the core Q can be removed from the web winding body R portion downward.

[0036] The rolled core-removed body R discharged from the coring device 5 is successively conveyed by a conveyor 151 to a packaging machine 6.
Side, and are bagged by a predetermined number there.

Next, a method of manufacturing a roll paper for toilet according to the embodiment of the present invention will be described using a coreless roll paper manufacturing line equipped with the web take-up device 1, the staying device 4, the core removing device 5 and the like having the above-described configuration. explain.

Web take-up unit 1 in web take-up device 1
As shown in FIG. 2, a plurality of webs T2 are guided to the web ₂ in a state where each web T2 is divided by a slitter 11 in each product width. Then, the web winding section 12, the position a plurality of winding cores Q, the take-up shaft U formed by attaching a Q · ·, as each winding core Q correspond to the respective web T ₂ to the common axis V When the web winding start end is wound almost once around the winding core Q, each core is sprayed uniformly from the nozzle 13 toward the web winding start end while the nozzle bonding liquid is sprayed toward the web winding start end. Wrap each web winding start end around Q. still,
An adhesive may be mixed into the liquid sprayed from the nozzle 13 as necessary. The timing of spraying liquid from the nozzle 13 is such that the end of the web winding is one turn around the core Q.
Spraying may be started when the winding is completed, and the spraying may be ended when the web winding start end is wound around the core Q about 3 to 5 times, for example.

The web used for the toilet is
A material that easily dissolves when wet with a liquid is used, but when the liquid is sprayed on the start end of the web as described above, the cellulose in the wet web comes to hydrogen bond with each other. Thus, the webs that polymerize inward and outward are bonded to each other.

Next, in the web take-up section 12, the web is wound around each core Q by a product length, and
Once the winding operation is interrupted and the web winding body X with the core in the web winding unit 12 is discharged from the web winding unit 12 to the temporary receiving unit 14 side, the web is cut by the web cutting device 15. Separate the body X. Then, as shown in FIG. 3, one web winding body Y with a winding shaft formed by winding the web winding bodies R, R,... Around the respective winding cores Q, Q,.

Next, the web wound body Y with a winding shaft is disassembled by a web wound body unwinding and removing device 2 with a core.
Each of the web rolls P, P... With the core is separated from the common axis V. Then, the separated web wound body Z with a row core (each web wound body P with a core, P,...)
Is put on the conveyor 117 as shown in FIG.
Subsequently, the liquid is sequentially supplied from the inlet of the staying device 4 onto the receiving members 42, 42,... Of the staying device 4 (see FIGS. 5 to 6). In the stagnation device 4, the web wound bodies P, P,... With the respective cores placed on the respective receiving members 42, 42,.
As the vehicle travels 1, 41, it is moved up and down zigzag. And the web winding body P with a core, P, ...
While moving through the staying device 4, the water that has wet the web winding start end is allowed to dry naturally.

That is, in this drying step, the moisture that wets the start end portion of the web winding is released (evaporates) into the outside air from the portion of the web winding body P with the core exposed to the outside air. When the winding core Q itself has no air permeability, as shown by an arrow A in FIG. 7, the web is discharged mainly from both axial end surfaces of the web winding body R into the outside air. At this time, as in the illustrated example, the web winding body P with a core is separated into products one by one (corresponding to claim 2 of the present application).
Then, the axial length becomes relatively short. Therefore, while the water near each axial end face in the web winding body P with a core evaporates spontaneously from each end face in a short time, the water near the axial middle part also moves toward each end face accordingly. However, since the length from the axial middle portion to the end face is short, the water present near the axial middle portion is also released into the outside air in a relatively short time. When the core Q itself is provided with air permeability (corresponding to claim 3 of the present application), moisture near the web winding start end portion is not only from both end faces of the web wound body R but also as indicated by an arrow B. Then, the water passes through the tube wall of the core Q inward and is also discharged into the core hole Qa, so that the drying in the staying device 4 can be further reduced.
Also, since the staying device 4 is configured to sequentially move the web winding body with the core from the inlet of the staying device to the outlet, the web winding body with the core is continuously connected to the entrance of the staying device sequentially. Can be supplied. The water released into the core hole Qa is released into the outside air from both ends of the core hole.

When the moisture near the web winding start end is dried, the webs near the web winding start end are bonded to each other by hydrogen bonding. When the web to each other is caused to adhere to each other such, so that the substantial rigid cylindrical body in the vicinity of the web winding start portion (reference numeral R ₂ portion of FIG. 9) is formed.

Next, the web winding body P with a core after the drying process in the staying device 4 is discharged onto the conveyor 141 by the discharging device 46 of the staying device 4, and Sent to In this coring step, the coring device 5
In a state where the core Q of the web winding body P with the core is positioned immediately below the pressing piece 52 of the air cylinder 5 of the core removing device 5,
1 is extended, and the core Q portion is pulled out with respect to the web winding body R by the pressing piece 52 and removed.

The thus produced in the roll paper R (Fig. 9), together with the hole R ₁ is formed at its central portion, the tubular portion R ₂ which defines the side surface of the hole R ₁ is solidified web Because it is a hard part made of
₂ has a shape retaining property, and web of the tubular portion R ₂ is wound solved available to the end, yet can flow directly to the toilet after use because the readily soluble when immersed in water.

The core Q removed from the web wound body R
Is reassembled on the common shaft V (FIG. 3) and used for the next web winding process.

In the above-mentioned method for producing a toilet roll paper, the cost of the core Q can be kept low since a pipe-shaped tubular body can be used simply as the core Q. Further, the web winding body P with the core formed in a state where the web winding start end is wet with the liquid is retained in the retaining device 4 for a predetermined time, so that the moisture that wets the web winding start end is obtained. Is naturally dried to adhere the web near the end of the winding start, and then the core Q is removed from the web wound body with the core by the core removing device 5, so that the center of the web wound is it is possible to produce a non-core roll paper in a state where relatively tubular portion R ₂ of the rigid formed.
In addition, if air is naturally dried by the staying device 4 in the drying step, energy for drying is not required (for example, heat energy is required for heating and drying). Further, in the drying step, if the web wound body P with a core is allowed to dry naturally in a state where the length is set in the axial direction per one product, the axial length of the web wound body P with a core is short. Therefore, the length to each axial end surface from which moisture is released is shortened, and the drying time is shortened accordingly. Also, if a material having air permeability is used as the core Q, the moisture near the web winding start end can be released from the core hole Qa through the tube wall of the core Q, and the drying time can be reduced. It can be further shortened. Thus drying time is shortened, until it can be reduced the time to form a tubular portion R ₂ of the rigid central portion of the web wound body, removing disconnect the winding core Q in step Remove vent core, the The time for restraining the core Q can be shortened, and the time for commercializing roll paper can be shortened.

[Brief description of the drawings]

FIG. 1 is a schematic view of a production line for performing a roll paper production method according to an embodiment of the present invention.

FIG. 2 is an explanatory view of a web winding device for performing a web winding step in the production line of FIG. 1;

FIG. 3 is an explanatory view of a web winding body with a winding shaft manufactured by the web winding device of FIG. 2;

FIG. 4 is an explanatory view showing a state where the web winding body with a core is removed from the winding shaft of the web winding body with a winding shaft of FIG. 3;

FIG. 5 is an explanatory view (a view taken in the direction of arrow VV in FIG. 1) of a staying device for performing a drying step in the production line of FIG. 1;

6 is a view taken in the direction of arrows VI-VI in FIG. 5;

FIG. 7 is a partially enlarged sectional view of the staying device of FIG. 5;

FIG. 8 is an explanatory diagram of a coring device for performing a coring process in the production line of FIG. 1;

FIG. 9 is a perspective view of a roll paper manufactured by the roll paper manufacturing method according to the embodiment of the present invention.

[Explanation of symbols]

1 is a web winding device, 4 is a staying device, 5 is a core removing device, P is a web wound body with a core, Q is a core, and R is a coreless roll paper.

Claims (4)

(57) [Claims] 1. A core having a tubular body having an outer diameter substantially equal to the inner diameter of a center hole of a toilet roll paper and formed of a material that does not deteriorate even when it comes into contact with water. Around the web winding start end while spraying a liquid for bonding the web to a predetermined small length range of the web winding start end, and then sequentially winding the product length web on the outside thereof. A web winding step of forming a web winding body by forming the web winding body around the winding core, and attaching the web winding body with the winding core to the start end of the web winding by a staying means while forming the web winding body around the winding core. A drying step of drying the liquid attached to the start end of the web winding by retaining the liquid for a period of time for natural drying to such an extent that the liquid can be removed from the web wound body with the core. A core removing step of removing the core from the cored web wound body, and Method for producing a toilet roll paper and performing. 2. The toilet roll paper has an outer diameter substantially equal to the inner diameter of the center hole of the toilet roll paper, and has the same length as the axial length per product of the toilet roll paper. Using a core formed of a tubular body of a material which does not deteriorate, and surrounding the core, a web winding start end of a web having the same width as the length of the core, and a predetermined length of the web winding start end. A web winding step of forming a web wound body by winding a web of a product length around the outside of the web while spraying a liquid for web bonding over a small length range, and surrounding the core. To the extent that the liquid adhered to the start end of the web winding can remove the core from the web winding body with the core while the web winding body with the core is still formed while the web winding body with the core is formed. Allow the air to dry for a while until it dries, A drying step of drying the was liquid, cored step of removing disconnect the winding core from the winding core with the web wound body of the dried, capital method for producing a toilet roll paper and performing. 3. The method for producing a roll paper for toilet according to claim 1, wherein a core having air permeability in and out of the tubular body is used as the core. 4. The storage means according to any one of claims 1 to 3, wherein the web winding body with each core is sequentially moved from an inlet to an outlet of the storage means. A method for producing roll paper for a toilet, comprising: