JP2010221041A - Toilet paper roll, and method of manufacturing toilet paper roll - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the occurrence of inferior paper winding as much as possible and to prevent paper cut in the winding. <P>SOLUTION: A toilet paper roll has a paper width and paper tube length L of 100 to 114±2 mm, and is so constituted that the toilet paper is wound around the whole circumference and the whole length of the paper tube 1, or substantially the whole part of both the ends excluding a length range of 40-65% of the central part of the axial direction via paste A. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a toilet paper roll having a paper tube, a method for manufacturing a toilet paper roll, and a manufacturing apparatus.

In a toilet paper roll having a paper tube, the starting end of the web is attached to the paper tube via glue (adhesive), and then wound up sequentially.
As shown in FIG. 1, the adhesive is attached in this case in such a manner that adhesive A is continuously attached in the longitudinal direction at one place in the circumferential direction of the paper tube 1, and as shown in FIG. There is a form in which the glue A is attached in a narrow width that is continuous in the circumferential direction and spaced in the longitudinal direction.
As the winding device in the case of adopting the latter form, the one of Patent Document 1 is known and introduced in practice.
However, although it is not seen in relatively stiff webs, toilet paper rolls are thin and flexible because they are thin papers. To do.
As shown in FIG. 3 (a), the winding failure is an irregular shape due to winding at the starting end portion of the paper tube 1 with the leading end of the web W collapsed, (b). As shown in FIG. 4, the shape becomes irregular when wound in a state of being broken in the winding intermediate portion, and as shown in (c), the shape is broken by being wound in a broken state at the winding end portion. There are things that become irregular, which can be disliked by consumers.
On the other hand, if the leading end of the web does not adhere to the paper tube 1 at the time of winding or is in a partially attached state, a vertical tear occurs between the narrow paste A adhering portions at the beginning of winding, and finally There may be situations where paper breaks occur. Paper breaks significantly reduce productivity.

US Pat. No. 3,148,843

  Accordingly, an object of the present invention is to reduce the occurrence of winding defects as much as possible and to prevent paper breaks.

The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
In the process of rolling the long paper tube in the circumferential direction, glue attaching means for attaching glue over the entire circumference of the long paper tube with unapplied portions spaced in the longitudinal direction;
A winding roll that guides a wide paper web, a rotating endless belt opposite to the winding roll, and a roll-like product in which a wide paper web is wound around a long paper tube is rotated in the circumferential direction by the rotating endless belt to be wound up. Winding means configured as follows;
A long paper tube to which the glue is attached enters substantially on a line connecting the axis of the winding roll and the axis of the winding pulley of the rotating endless belt facing the winding roll, and the driven endless rotation of the rotating endless belt Before starting, receiving a long paper tube to which the glue is attached, and moving to the wide paper web side passing through the winding roll, the guide means corresponding to the position in the uncoated portion Manufactured by a toilet paper roll manufacturing device that is a rotating disk placed in
The width of the paper and the length of the paper tube are 100 mm to 116 mm, and paste is applied only to the entire part of both ends excluding the length range of 40 to 65% of the entire circumference of the paper tube and the central portion in the axial direction. Toilet paper roll, wherein the toilet paper is wound through

<Invention of Claim 2>
In the process of rolling the long paper tube in the circumferential direction, glue attaching means for attaching glue over the entire circumference of the long paper tube with unapplied portions spaced in the longitudinal direction;
A winding roll that guides a wide paper web, a rotating endless belt opposite to the winding roll, and a roll-like product in which a wide paper web is wound around a long paper tube is rotated in the circumferential direction by the rotating endless belt to be wound up. Winding means configured as follows;
A long paper tube to which the glue is attached enters substantially on a line connecting the axis of the winding roll and the axis of the winding pulley of the rotating endless belt facing the winding roll, and the driven endless rotation of the rotating endless belt Before starting, receiving a long paper tube to which the glue is attached, and moving to the wide paper web side passing through the winding roll, the guide means corresponding to the position in the uncoated portion Manufactured by a toilet paper roll manufacturing device that is a rotating disk placed in
A toilet paper roll having a paper width and a paper tube length of 100 mm to 116 mm, glue is applied to the entire circumference of the paper tube, and the toilet paper is wound around the glue.

<Invention of Claim 3>
In the process of rolling the long paper tube in the circumferential direction, glue is attached over the entire circumference of the long paper tube with unapplied parts spaced in the longitudinal direction;
A long endless paper tube with the glue attached is inserted almost on the line connecting the axis of the winding roll that guides the wide paper web and the axis of the winding pulley of the rotating endless belt facing the winding roll. Before the driven rolling starts, a step of receiving a long paper tube to which the glue is attached by means of a rotating disk arranged at a position corresponding to the uncoated portion and moving to the wide paper web side passing through the winding roll When,
A winding step of winding in a circumferential direction a roll-shaped object in which a wide paper web is wound around a long paper tube to which the paste is attached by rotating the rotating endless belt;
The wide paper web and the long paper tube are cut and divided, the paper width and the paper tube length are 100 mm to 116 mm, glue is applied to the entire circumference and length of the paper tube, and the toilet paper is wound through the glue. The toilet paper roll with a short width and the entire circumference of the paper tube and the length range of 40 to 65% of the central portion in the axial direction are applied with glue on substantially the entire ends, and the toilet is passed through the glue. A method for producing a toilet paper roll, comprising: a slitting step, wherein the paper is wound into a short unit toilet paper roll.

(Function and effect)
In the present invention, the toilet paper is wound around the entire circumference of the paper tube and the entire length, or substantially the entire end portions except for the length range of 40 to 65% of the central portion in the axial direction, via glue. Therefore, substantially the entire tip portion of the web is bonded via the glue, so that the occurrence of winding defects can be reduced and paper breakage can be prevented. In addition, even if the glue is partially attached in the longitudinal direction of the paper tube, the non-coated part is only in the center and the length range is 40 to 65%. Thus, it has been found that the occurrence of winding defects can be reduced and paper breaks can be prevented.

  On the other hand, in a facility equipped with a known slitter using a winding device equipped with a glue adhering means described in US Pat. No. 3,148,843, this is improved and the entire length of the cut unit paper tube and the total length Or, by taking a form in which a wide paper web is wound around a long paper tube in a roll shape with the relationship that the paste is interposed substantially in the entire part of both ends excluding the length range of 40 to 65% of the central portion in the axial direction. , The occurrence of winding defects can be reduced, and paper breaks can be prevented.

<Other First Present Invention>
Glue adhering means for adhering glue to the long paper tube, winding means for winding the wide paper web around the long paper tube to which the glue has been adhered, in roll form, and cutting the wide paper web and the long paper tube And a slitting means for dividing the roll into short unit toilet paper rolls,
In the process of rolling the long paper tube in the circumferential direction, the glue adhering means attaches the glue over the entire circumference of the long paper tube with an unapplied portion spaced in the longitudinal direction,
The winding means includes a winding roll that guides the wide paper web, a rotating endless belt facing the winding roll, and a roll-like product in which the wide paper web is wound around a long paper tube by the rotating endless belt in the circumferential direction. It is configured to rotate and wind up,
A long paper tube to which the glue is attached enters substantially on a line connecting the axis of the winding roll and the axis of the winding pulley of the rotating endless belt opposite thereto, and the rotation endless belt is driven to rotate. An apparatus for manufacturing a toilet paper roll, comprising guide means for receiving a long paper tube to which the glue has been attached before the movement starts and moving the long paper tube to the wide paper web passing through the winding roll.

<Other Second Present Invention>
The guide means is a rotating disk disposed at a position corresponding to an uncoated portion, the rotating disk is coaxial with the winding pulley, and the diameter of the rotating disk is (the diameter of the winding pulley + 2 × the rotation endless belt). The apparatus for producing a toilet paper roll according to another first aspect of the present invention, which is larger than (thickness).

(Function and effect)
With respect to the other first and second inventions, a unit paper which is improved and cut using a winding device provided with a glue adhering means described in US Pat. No. 3,148,843 and equipped with a known slitter. A wide paper web is rolled on a long paper tube over the entire circumference of the tube and with the relationship that the paste is interposed substantially across the entire length, or the entire length of both ends excluding the length range of 40 to 65% of the central portion in the axial direction. By adopting a form that is wound into a shape, the occurrence of winding defects can be reduced and paper breaks can be prevented.

  According to the present invention, it is possible to reduce the occurrence of winding defects as much as possible and to prevent paper breaks.

It is a front view of the 1st example of the conventional glue application example to a paper tube. It is a front view of the 2nd example of the conventional paste application example to a paper tube. It is a side view of the toilet paper roll for description of a winding defect example. It is a front view of the example of paste application to the paper tube of the present invention. It is a schematic diagram of an example of paste application and winding equipment. It is an outline top view of the example of winding equipment.

Hereinafter, the present invention will be described in more detail while showing the best mode for carrying out the present invention.
According to the present invention, a toilet paper roll having a paper width and a paper tube length of desirably 114 ± 2 mm, or at least a minimum of 100 mm, preferably a lower limit of 105 mm, on the entire circumference of the paper tube 1, and As shown in FIG. 4 (a), a toilet paper roll is provided in which the toilet paper is wound around the entire length via glue. In this case, those specified in JIS P 4501 (1993) are preferably used.

  Further, as shown in FIG. 4B, the length range of 40 to 65% of the length L of the paper tube 1 in the central portion in the axial direction is set as the non-applied portion Z, and the entire end portions of the paper tube 1 are A toilet paper roll is also provided in which the toilet paper is wound up via glue.

  A manufacturing example of such a toilet paper roll will be described with reference to FIGS. 5 and 6. A long paper tube 10 is supplied from the outside and is inserted into the outside of the mandrel shaft 12. Both ends of the mandrel shaft 12 are held in fixed chucks 16 and 16 between endless chains 14 and 14 arranged at intervals in a direction penetrating the paper surface of FIG. Move counterclockwise. Accordingly, the long paper tube 10 held by the mandrel shaft 12 is also moved, and the paste A picked up by the glue applying device 18 provided at a predetermined position rolls the long paper tube 10 in the circumferential direction. And applied to the outer surface.

  The long paper tube 10 to which the paste A is applied is moved to the site of the winding means. The winding means includes a winding roll 20 that guides the wide paper web W0, a rotating endless belt 22 facing the winding roll 20, and a roll-like product in which the wide paper web W0 is wound around the long paper tube 10 in the circumferential direction. The rotary endless belt 20 is rotated for winding.

  The rotating endless belt 22 is configured by a belt 22C wound around a driving pulley 22A and a driven pulley 22B. When the long paper tube 20 to which is attached enters, the driven rolling starts with the rotation of the rotating endless belt 22 in earnest. In FIG. 5, the gap into which the long paper tube 20 enters is exaggerated for the sake of explanation. However, in actuality, the long paper tube 20 includes the belt 22 </ b> C and the winding roll 20 on the line connecting the shaft centers. It is a gap | interval of the grade which contacts the wide wide paper web W0.

  In the present invention, for example, a running disk 30 is provided coaxially with the driving pulley 22A as the guiding means of the present invention. The running disk 30 is a rotating disk disposed at a position corresponding to an uncoated portion Z of the long paper tube 20 described later, and the diameter of the running disk 30 is (the diameter of the driving pulley 22A + 2 × the rotating endless belt). 22C thickness). Therefore, as shown in FIG. 5, the outer periphery of the running disk 30 protrudes slightly outward from the belt 22 </ b> C, for example, about 1 to 3 mm in the radial direction of the driving pulley 22 </ b> A.

  On the other hand, in the glue application device 18, as clearly shown in FIG. 6, the glue A has a non-application part Z larger than the thickness of each run-off disk 30 (the length in the longitudinal direction of the long paper tube 20) is long paper. Apply to the entire circumference of the tube 20.

  According to the equipment configured in this way, when the long paper tube 10 to which the paste A is applied is moved to the portion of the winding means as the endless chains 14 and 14 are moved, first, the long paper tube 10 Since the paper tube 10 abuts on the outer surface of the running disk 30 and is further moved, the paper tube 10 is pushed by the outer surface of the running disk 30, so that the paper tube 10 moves toward the wide paper web W 0 around the winding roll 20 as shown by the arrows in FIG. Moving. Therefore, the wide paper web W0 adheres to the outer surface of the long paper tube 10 via the glue A, and rolling of one or more turns starts. Subsequently, when it moves on a line connecting the shaft centers, the driven rolling starts in earnest with respect to the rotation by the rotating endless belt 22. Along with this driven rolling, the roll-like object moves downward as the diameter increases. Finally, the wide paper web W0 is cut by the cutter 24 when the winding is finished to a predetermined length.

  Thereafter, the long paper tube 10 on which the wide paper web W0 is wound up is extracted from the mandrel shaft 12, discharged from the equipment, and wound on the wide paper web W0 by a slitter (not shown) as a slitting means. The long paper tube 10 is cut and divided into short unit toilet paper rolls. In this case, as shown in FIG. 6, slitting is performed in a dimensional relationship where the non-application portion Z is in the center. A split unit toilet paper roll is shown in FIG.

  As the guiding means of the present invention, the running disk 30 is used in the above example. However, since the long paper tube 10 may be moved to the winding roll 20 side prior to full-scale rolling, for example, a mandrel shaft A guide guide for moving 12 to the winding roll 20 may be used. In this case, if guide guides are provided at both ends of the mandrel shaft 12, the paste A can be applied over the entire length and the entire circumference of the outer surface of the long paper tube 10. Therefore, it is possible to produce a toilet paper roll group having no uncoated portion in all.

  Here, the reason why the length range of the non-applied portion Z is set to 40 to 65% of the length L of the paper tube 1 is that 40% or more is required as the thickness of the running disc 30, and the upper limit is 65%. This is because it has been found that there is no significant difference in the reduction rate of winding defects and the effect of preventing sheet breakage.

  By the way, in the facility of about 2500 tons per month, when the occurrence rate of winding failure in the conventional form of FIG. 2 is assumed to be 100%, by adopting the form of the present invention, it is reduced to about 23% and the paper is cut off. No longer occurs.

  DESCRIPTION OF SYMBOLS 1 ... Unit paper tube, 10 ... Long paper tube, 12 ... Mandrel shaft, 14 ... Endless chain, 18 ... Paste applicator, 20 ... Winding roll, 22 ... Rotating endless belt, A ... Paste, Z ... Non-applying part.

Claims (3)

In the process of rolling the long paper tube in the circumferential direction, glue attaching means for attaching glue over the entire circumference of the long paper tube with unapplied portions spaced in the longitudinal direction;
A winding roll that guides a wide paper web, a rotating endless belt opposite to the winding roll, and a roll-like product in which a wide paper web is wound around a long paper tube is rotated in the circumferential direction by the rotating endless belt to be wound up. Winding means configured as follows;
A long paper tube to which the glue is attached enters substantially on a line connecting the axis of the winding roll and the axis of the winding pulley of the rotating endless belt facing the winding roll, and the driven endless rotation of the rotating endless belt Before starting, receiving a long paper tube to which the glue is attached, and moving to the wide paper web side passing through the winding roll, the guide means corresponding to the position in the uncoated portion Manufactured by a toilet paper roll manufacturing device that is a rotating disk placed in
The width of the paper and the length of the paper tube are 100 mm to 116 mm, and paste is applied only to the entire part of both ends excluding the length range of 40 to 65% of the entire circumference of the paper tube and the central portion in the axial direction. Toilet paper roll, wherein the toilet paper is wound through In the process of rolling the long paper tube in the circumferential direction, glue attaching means for attaching glue over the entire circumference of the long paper tube with unapplied portions spaced in the longitudinal direction;
A winding roll that guides a wide paper web, a rotating endless belt opposite to the winding roll, and a roll-like product in which a wide paper web is wound around a long paper tube is rotated in the circumferential direction by the rotating endless belt to be wound up. Winding means configured as follows;
A long paper tube to which the glue is attached enters substantially on a line connecting the axis of the winding roll and the axis of the winding pulley of the rotating endless belt opposite thereto, and the driven rolling of the rotating endless belt Before starting, receiving a long paper tube to which the glue is attached, and moving to the wide paper web side passing through the winding roll, the guide means corresponding to the position in the uncoated portion Manufactured by a toilet paper roll manufacturing device that is a rotating disk placed in
A toilet paper roll having a paper width and a paper tube length of 100 mm to 116 mm, glue is applied to the entire circumference of the paper tube, and the toilet paper is wound around the glue. In the process of rolling the long paper tube in the circumferential direction, glue is attached over the entire circumference of the long paper tube with unapplied parts spaced in the longitudinal direction;
A long endless paper tube with the glue attached is inserted almost on the line connecting the axis of the winding roll that guides the wide paper web and the axis of the winding pulley of the rotating endless belt facing the winding roll. Before the driven rolling starts, a step of receiving a long paper tube to which the glue is attached by means of a rotating disk arranged at a position corresponding to the uncoated portion and moving to the wide paper web side passing through the winding roll When,
A winding step of winding in a circumferential direction a roll-shaped object in which a wide paper web is wound around a long paper tube to which the paste is attached by rotating the rotating endless belt;
The wide paper web and the long paper tube are cut and divided, the paper width and the paper tube length are 100 mm to 116 mm, glue is applied to the entire circumference and length of the paper tube, and the toilet paper is wound through the glue. The toilet paper roll with a short width and the entire circumference of the paper tube and the length range of 40 to 65% of the central portion in the axial direction are applied with glue on substantially the entire ends, and the toilet is passed through the glue. A method for producing a toilet paper roll, comprising: a slitting step, wherein the paper is wound into a short unit toilet paper roll.

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