JPS60204555A - Method of manufacturing compressed roll paper - Google Patents

Abstract

PURPOSE:To reduce the cost of packing, carrying and storing a roll paper in its deformed flat shape by pressing the roll paper and compressing same in such a manner as to have a diameter about half to one fifth as large as that of the roll paper not yet pressed. CONSTITUTION:A roll paper 29 is continuously pressed until the thickness of roll becomes about half to one fifth as large as the diameter of the roll not yet pressed, so that the roll is deformed to be flat. After that, the compressed roll paper is covered with a thermally contractible polymer film and heated to form a flat compressed roll paper. Thus, the roll paper can be kept flat during a long period of time to reduce the cost of packing, carrying and storing.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to compressed toilet roll paper and +t roll paper, i.e., a method for producing compressed roll paper, and particularly relates to a method for producing compressed toilet roll paper and compressed roll paper. Relating to a manufacturing method.

(b) Prior art In general, roll paper is manufactured into a cylindrical shape by wrapping () roll paper or towel paper around a hollow cylindrical core so that it can be taken out continuously from a holder during use. .

However, the fact that the outer shape is internally shaped and the core is hollow and curved causes the amount of film to increase and become bulky during loading, storage, etc. For this reason, with conventional roll paper, freight charges and storage charges at warehouses and the like are relatively high, which cannot be ignored in terms of the unit price of roll paper. Furthermore, in the case of export, the freight and storage fees amount to a huge amount, and reducing these costs has been a major challenge in keeping unit prices down.

In order to eliminate the drawbacks due to the cylindrical shape of roll paper, roll paper is deformed into a flat shape for packaging and packaging.
Measures have been proposed to reduce transportation and storage costs.

However, none of these methods have been put into practical use at present.

This is because roll paper is thought to reduce its product value even if it is distorted during transportation, for example, and when roll paper is compressed and deformed into a flat shape, it expands on one side. When taken out, the crepe stretches, becomes wrinkled and loses its elasticity, so even if the flat roll paper is restored to a circular shape during use, the distorted shape will not be easily resolved and will remain.
Even if sheet metal or roll paper is compressed and deformed into a flat shape by pressing, when the pressing force is released, the roll paper easily swells due to its unique elasticity, making it difficult to maintain the shape when compressed and deformed by pressing. , Therefore, the volume reduction effect due to compressive deformation is not as great as the one shown above.

(C) Structure Therefore, the inventors of the present invention have repeatedly studied the compression deformation caused by pressing the compressed roll paper and the restorability of its shape, and have found that when pressing the roll paper, the bulging side can be freely expanded. It has been discovered that by doing this, compressed roll paper with a flat shape without wrinkles can be obtained.

That is, the present invention provides a method for manufacturing a flat-shaped compressed roll paper by compressing and deforming a roll-shaped roll paper, in which the roll paper is pressed and the thickness of the roll paper is equal to the diameter of the roll before compression. The present invention resides in a method for producing a flat-shaped compressed roll paper, characterized in that the roll paper is compressed into a flat shape by pressing the roll paper until the roll paper becomes approximately In the method of manufacturing compressed roll paper in a flat shape by compressing and deforming the roll paper, the roll paper is pressed, and the pressing is continued until the thickness of the roll of the roll paper becomes about 50% or about % of the roll diameter before pressing. , a method for producing a compressed roll paper in a flat shape, which comprises compressing the compressed roll paper into a flat shape, covering the compressed roll paper with a heat-shrinkable polymer film, and heating the film.

In the present invention, compressed roll paper refers to pressure a toilet roll paper and towel roll paper,
Only one roll paper is required and it can be folded.
It may be a length for multiple pieces with perforations etc. The shape of the compressed roll paper refers to a shape that is flatter than a circle on the side surface side, and includes various elliptical shapes.

Further, although the core is not necessarily provided, by providing a hollow core with even a slight amount of elasticity, it becomes easy to return the flat shape to the cylindrical shape. The material for such a hollow core may be any material that can be easily restored from a flat shape, especially a thin flat shape, to a circular or cylindrical shape, such as elastic materials such as rubber or plastic rubber. It may be a material that can be easily restored to a cylindrical shape by unwrapping it, such as paperboard, or a flexible material that can be easily deformed, such as a paper tube core, that is, a material that has slight elasticity. It may be. For example, when roll paper using a conventional paper tube core is pressure-molded into a flat shape, wrinkles are formed on the bent side of the paper tube core. It is large enough that it can be easily formed into a cylindrical shape, that is, a roll shape, by applying a light force to inflate the central part, so there is no problem.

The dimensions and shape of the side surface of the compressed roll paper obtained in the present invention vary somewhat depending on the pressing conditions, the size of the crepe, and whether it is double or single. For example, among the various types of roll-shaped roll paper, 11 sheets of double 65 m outer toilet roll paper are available.
4n with an outer diameter of 105m and a center core diameter of 38fl, when compressed, the thickness, that is, the outer diameter on the shorter side, is about 60 + fl or less, and the outer diameter on the longer side is about 135n or less. You can get various things.

In this case, the central core will have 59 dragons or more on the long diameter side. Among these, the outer shape is preferably about 50W or less in thickness, about 130W or more on the long axis side, the core is 60W or more on the long axis side, and it is preferable in terms of volume reduction and ease of restoration.

The restorability of compressed roll paper depends on the elasticity of, for example, crepe, so the crepe must be maintained when the roll paper is compressed and deformed. but,
If the roll paper is simply compressed and deformed, it will bulge in a direction perpendicular to the compression direction, the crepe will stretch, and the roll paper will lose its elasticity and softness.

Therefore, in the present invention, the compressed roll paper is manufactured by being molded under pressure, but in order to maximize the elongation of the crepe during manufacture, it is preferable to limit the pressure applied to the roll paper. Therefore, for example, if the compression is limited, the crepe on the bulging side will not stretch to the extent that it cannot be restored even if it is pressed from above and below. In this way, limit the pressure and
By restricting the bulge, it is possible to compress the paper to a thickness of %t, that is, about 20 m in the short axis and outer diameter, with a double roll of 65 m roll paper, for example.

By naturally restoring the compressed roll paper in this way, for example, the thickness of the Gupur 65 Tokimaki light roll paper, that is, the outer diameter of the short diameter side, is 55 m or less.
In particular, it has become possible to industrially produce flat compressed roll paper with an outer diameter of about 50 nm or less and a major axis side outer diameter of 130 m or more.

However, if it is compressed extremely flatly, for example, to the outer diameter of the shorter side, that is, to a thickness of 10 m, in one step, if there is a perforation in the bulge, it may break there, or
It bulges out extremely in the direction perpendicular to the direction of compression, making the wrinkles uneven, making it impossible to restore it to a circular shape during use, and furthermore, making it more likely to break at the ears than at the ends. For example, the thickness of the roll for compression is 30 to 20 f.
1. It is preferable to stop the compression molding at a length of, for example, about 27 m, cover the compression molded product with a film of a heat-shrinkable polymer, and further compress it to a predetermined size by the shrinkage action of the film due to heating.

In this way, even if the sheet metal has perforations, it can be compressed without breaking, and without removing the broken edges during use.

However, as mentioned above, roll paper that has been pressure molded has considerable restoring force even after molding, so in order to maintain the shape at the time of molding, it is preferable to wrap it with a plastic film or the like at the same time as molding.

In addition to plastic film packaging, any packaging such as paper containers, plastic containers, cans, etc. can be used for packaging this flat compressed roll paper, but packaging using plastic film is particularly easy to mechanize, so Film sealing, especially individual film sealing, is easy and air-tight or liquid-tight, which prevents contamination or deterioration due to rain, moisture, etc. during transportation or storage, making it extremely hygienic. Moreover, when press-forming flat and packaging with film, by applying pressure and sealing under vacuum, it can be compressed to half the volume of a normal roll-shaped roll paper, and has a large restoring force for its volume. Therefore, it is preferable. It is preferable to use a thermal US polymer film as the plastic film because pressure molding can be performed at the same time as packaging.

The compressive deformation of the rolled paper f) in the present invention by suppression is performed by pressing the roll paper with a suppression rod. In this case, the compression stroke of the pressing rod is, for example, a double roll of 65 m at a pressure m, and the outer diameter of the compressed roll paper is on the short diameter side, that is, the thickness of the roll is 50 m. If pressed up to 83 sheaths. In this case, the outer diameter of the roll paper of Tuple 65 is compressed to 27 m in thickness, that is, on the short diameter side.

However, this compression of the roll paper is not performed by moving the pressing rod all at once, but by gradually pressing it. Moreover, for example, in one case of the roll paper outside the roll of Gupuru 65911, the outer diameter is, for example, the thickness is 2
When the distance reaches 0 to 30m, for example 27m, press port 2
Rather than stopping the suppression of
It is necessary to maintain the pressing pressure for 20 seconds or more, preferably for 20 seconds or more. Such pressing force may be gradually released, or the compressed roll paper may be held for a certain period of time under the final pressure. Even when the pressure is released and it restores itself naturally, the outer diameter of the compressed roll paper remains at around 50m on the short diameter side, and flat roll paper that can be easily restored to a circular shape when used is stably manufactured. be done. Therefore, subsequent work on packaging costs becomes easier.

In addition, the present inventors have also found that by such a method, the pressure
- When manufacturing Ruper, if the roll paper of Guru 65 Yukimaki is compressed and deformed to a thickness of 10 m, it will be restored to a thickness of 26 m, but this roll paper has creases and is easily It does not return to a circular shape. Also,
Even if the thickness during compression deformation is 16fi, the thickness after restoration is 2.
7 m, - is the same, and the fact that the thickness, that is, the outside diameter on the shorter axis side, becomes 45 to 501 or more by restoring after compression ensures that the compressed roll paper can be restored to a circular shape during use. I realized that it was necessary to do so.

It is possible to seal with a film at the same time as pressure forming, but it is also possible to wrap and seal multiple pieces together with a film at the same time as pressure forming, or to do the same with long rolls of paper. It ends with that. Of course, the molding and sealing steps can also be separated and performed separately. In this case, each piece or pieces of flat compressed roll paper that has only been subjected to pressure molding is covered with a film and sealed.

The compressed roll paper manufacturing apparatus used in the present invention is as follows:
For example, by providing a roller at one end of the suppression rod and bringing this roller into contact with a suppression guide cam to guide the path, the movement stroke of the pressure plate of the pressure rod in the suppression process can be adjusted as planned. ! Finish by adjusting.

The suppression guide cams can be arranged on either side or below the pressure container to form a circulation path either horizontally or vertically. However, the suppression guide cam may be fixed to the fixed shaft, and the suppression device having a plurality of pressing rods may be provided radially and vertically in a rotatable manner around the fixed shaft. By attaching the cam to the fixed shaft in this way, the structure is simple and does not take up much space. Whichever type is adopted, the shape of the pressing guide cam is determined in accordance with the pressing force of the roll paper, that is, the movement stroke of the suppression plate.

The pressurized container is provided with a side wall, a roll paper support plate, and a door that can be opened and closed to accommodate and discharge the roll paper to form a roll paper storage chamber. It can be used for both purposes. It is preferable to provide a roll paper positioning member in the roll paper storage chamber of the pressing container so that the roll paper is placed at a fixed position when pressing the roll paper.

The suppression container is ~fixed support! It is possible to press the roll paper just by fixing it with a device, but
1--11-1 By contacting and engaging with a guide plate such as a 2+7 roller or a -7 frame roller, the load placed on the fixed support device can be reduced.

In particular, when the manufacturing apparatus of the present invention is formed into a rotary type, it is preferable to provide a pressure rod support rail that engages with the rollers of the suppression rod, for example, around the suppression cam, and furthermore, it is preferable to provide a pressure rod support rail that engages with the rollers of the suppression rod. Preferably, the lid member 11fl is provided with a free rail that engages with a biver provided on the member or cover.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings, but the technical scope of the present invention is not limited in any way by this description.

(D) Embodiment FIG. 1 is a side sectional view of an embodiment of the compressed roll paper positioning method of the present invention, and FIG. 2 is a partially enlarged sectional view of FIG. 1.

The roll paper press container 1 continuously rotates through 2 to 13 roll paper press positions. Each suppression container 1 includes a side plate 14, a lid member 15, an upper core a16, a pressing plate 17, a pressing rod 18, and a pressing rod bearing 19.
and a lower roller 20. The side plates 14a, 14b have both end portions fixed to the drum side plate 21, and are separated from the front and back by the pair of side plates 14a, 14b to form a roll paper suppression container. A member for positioning the roll paper, such as a positioning piece 22, is provided on one of the side plates, and this member determines the position of the roll paper supplied into the press container prior to compression. An opening/closing fulcrum 23 is provided at one end of the rear side plate 14I, and the lid member 15 is attached to this fulcrum.
is rotatably mounted. A lever 24 for closing the lid member 15 is provided on the opening/closing support side of the lid member 15, and a suppressing plate 17 and a side plate 1 serve to close the opened lid member.
Press container 1 surrounded by 4a, 14b and drum side plate 21
The roll paper inside the container j is compressed by moving a certain distance inside the container j. This movement stroke of the suppressing plate 17 is performed by the operation of the pressing rod 18 loosely supported by the rod bearing 19. This pressing operation of the pressing rod 18 is performed by contact engagement between the lower roller 20 and the pressing guide cam 25. The suppression guide cam 25 is fixed to a fixed shaft 26, and the suppression container 1 rotates together with the drum side plate 21. The upper roller 16 of the pressurized container 1 moves while coming into contact with the inside of a frame 27 provided concentrically with the fixed shaft 26 . A location past the end of the frame 27 is a take-out position 9. A press rod support rail 28 is formed along the outer periphery of the press guide cam 25 between the take-out position 9 and the press start position 12 where the starting end of the frame 27 is located. At the take-out position 9, the press container 1 is supported by the support rail 28, but the lid member 15 automatically opens downward because there is nothing to support its weight, and a compression roll is placed directly below the lid member 15. A paper 29 take-out tool 30 and a compressed roll paper conveyor 31 are provided. A supply plate 32 and a roll paper supply 33 are provided diagonally above the roll paper supply position 11. This roll paper supply 33 is operated by a shilling 34.

A drum support roller 36 is provided in contact with the drum 35, and the drum 35 is supported by the drum support roller 36.

The drum 35 rotates by rotating the drum support roller 36 by a drive source (not shown). A lid member 111iffl rail 37 is provided at a position that engages with the end of the lever 24 from a point past the compressed roll paper take-out position 9 to a point past the roll paper supply position 12.

Since the compressed roll paper manufacturing apparatus of the present invention is formed in this way, at the roll paper supply position 12, both the supply plate 32 and the roll paper supply metal 33 are connected to the press container 1.
Roll paper is supplied inside. Drum support roller 35
As the drum rotates (rotates in the forward direction 2 to 13 in the figure), the suppression container moves upward. The end of the lever 24 moves along the opening/closing rail 37, and the lid member 15 is closed at the point where the opening/closing rail 37 bends into a rising shape. The roll paper 29 inside the suppression container is positioned by the positioning piece 22. The positioning piece is such that the roll paper is pushed out of the container when a slight load is applied to the pressing rod, and the pressing container 1 is placed in the pressing areas 2, 3, 4.5, 6.7, and 8 in the 7 frames 27. move.

As the rotating drum 35 rotates, the lower roller 20 of the pressing rod 18 moves along the surface of the pressing guide cam 25, and the pressing rod rlB gradually moves into the pressing container 1 at an average speed of 4.3 tR/sec. Push in and press the roll paper 29. According to the magnitude of the pressing load of the pressing rod 18 and the insertion speed, it stops when it reaches the position of the suppressing guide cam 25, and
It is maintained for 17.5 seconds. - Rikishibu Koro leaves frame 27 after 17.5 seconds. Lid member 15
The rolled paper 29, which has been opened and compressed by its own weight, is pushed out by the pressing rod 1t18. The compressed roll paper is taken out by a take-out fitting 30 and taken out by a take-out conveyor 31.

The rotating drum 35 rotates continuously due to the rotation of driving drum support rollers.

The conveyed compressed roll paper is coated with a heat-shrinkable film to a thickness of 0.0 at a sealing temperature of 200°C.
It is simultaneously compressed and sealed with a 2W plastic film.

In addition, the roll of sealed toilet roll paper supplied to this compressed roll paper is sent from the roll holder process by a conveyor belt to a cutting process using a cutter, such as a round blade automatic cutter, where it is cut into an appropriate length. has been done. In the cutting process using a cutter, the roll of rolled paper can be cut to an appropriate length and perforations can also be made so that the roll ends with a break.

In the conventional method, the rolled paper cut in the cutting process is film-backed in its original form, packed in a box, etc., and shipped, but in the present invention, it is then subjected to the pressurizing and sealing process. It will be fed, formed into a flat shape, and sealed with a film.

(e) Effects The sealed compressed roll paper obtained by the present invention is, for example, pressed and deformed from a double roll paper of 65m @ 11114n to a roll thickness of about 50n1 on the short diameter side and about 135fi on the long diameter side. What I did was a case of 120 pieces of roll paper before pressing.
Since it can accommodate 208 pieces, it can accommodate 73.3% more than the standard roll paper, and even if you use a ready-made case like this, the truck load, warehouse storage fee, etc. during transportation will be 4. The number of openings is reduced, and the loading capacity per unit volume is increased, making it excellent for transporting toilet roll paper.

However, if it is housed in a case suitable for the compressed roll paper of the present invention, the volume can be used more effectively.
% more capacity, and transportation costs will be halved.

Moreover, the compressed roll paper obtained by the present invention is
Even when the pressing force is removed, the flat shape can be maintained and the volume can be reduced as described above, so if a heat-shrinkable polymer film is used, compression can be easily performed. In addition, packaging with a plastic film or the like becomes easier, and subsequent handling becomes easier. As mentioned above, the compressed roll paper of the product of the present invention is, for example, double 65 m outer roll paper, for example, 27, I
Although it is produced by strongly compressing it to the extent of ¥, crepe,
Since the thickness is restored to about 50 sheaths by the restoring force of embossing, etc., when in use, the center can be pressed to bulge and the shape can be easily restored to a circular shape, which does not pose any problem in use.

Moreover, since the compressed roll paper according to the present invention can maintain its flatness for a long period of time, it becomes easy to perform subsequent processing. In addition, packaging using a plastic film or the like can be automatically performed at any stage of the manufacturing process as well as at any time. In particular, products airtightly packaged with plastic film are extremely hygienic because they prevent contamination or deterioration due to rain, moisture, etc. during transportation or storage.
- Thus, the influence brought about by the present invention is significant.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of an embodiment of the compressed roll paper manufacturing apparatus of the present invention, and FIG. 2 is a partially enlarged sectional view of FIG. 1. 1 is a roll paper press container, and 2 to 13 are respective bonoci a. 14a and 141) are drum side plates, 15
is a lid member, 16 is an upper roller, 17 is a pressing plate, 18
is a pressing rod, 19 is a pressing rod bearing, 20 is a lower roller, 21 is a drum side plate, 22 is a positioning piece for roll paper, 23 is an opening/closing fulcrum, 24 is a lever, 25 is a pressing guide cam, 26 is a fixed shaft, 27 28 is a frame, 28 is a support rail, 29 is a roll paper, 30 is a take-out tool, 31 is a conveyor for carrying out, 32 is a roll paper supply plate, '33 is a roll paper supply metal, 34 is a rotating drum, and 35 is a drum support conveyor. , 36 is a drive roller, 37 is an opening/closing rail, and 38 is a spring for pushing back the positioning piece.

Claims (2)

[Claims] (1) In a method for manufacturing a flat-shaped compressed roll paper by compressing and deforming a roll-shaped roll paper, the roll paper is pressed and the thickness of the roll paper is approximately equal to or less than the diameter of the roll before compression. A method for producing a compressed roll paper having a flat shape, characterized by continuing to compress the paper until it becomes approximately %. (2) In a method of compressing and deforming a roll-shaped roll paper to produce a flat-shaped compressed roll paper,
After pressing the roll paper and continuing to press it with insects so that the thickness of the roll paper is about 10% to 10% of the diameter of the roll before pressing to compress it into a flat shape, this compressed roll paper is made into a heat-shrinkable material. A method for producing compressed roll paper in a flat shape, which comprises coating the paper with a polymer film and heating the film.