JPH06133894A - Corrugated sanitary roll paper and its manufacture - Google Patents

Abstract

PURPOSE:To decrease a use material, to reduce the cost, and to use the paper on a desk by coiling sanitary paper corrugated in both edges in the direction where the corrugation is arranged. CONSTITUTION:A paper making liquid 31 forms a wet paper layer on a wire 32 in order to enter into a circular net 29. When a corrugation cut line 33 is provided in the wire 32, the layer of wet paper is not formed thereon and a paper layer can be divided. Also, a corrugation projecting matter may be provided instead of the corrugation cut line 33. In a web 10a, a score B is provided by a score opening roller 11, and cutting of a waveform continued in the vertical direction is performed to the web 10a by a corrugated rotary die cylinder 12. By allowing even number pieces of curved bars 13a, 13b to pass through, adjacent divided webs 10b are separated enough in the horizontal direction, and coiled by utilizing a riding roll 15 by coiling drums 14a, 14b. The corrugated sanitary roll paper becomes a shaped formed by coiling sanitary paper 2 whose both edges are corrugated 1 in the direction where the corrugation is arranged. In such a way, the external appearance is improved, and the sanitary paper can be used as roll paper on a desk.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to corrugated hygienic roll paper, which is a substitute for tissue paper, toilet paper, Kyohana paper, paper towels, paper napkins, etc., and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, a large amount of paper products are used in the form of a small roll, but the most manufactured toilet paper will be described. There are other similar products and manufacturing methods, but the winding mechanism is similar in principle, and therefore the description is omitted. First, a typical automatic take-up device 3 for toilet paper is shown in FIG. The thin web rewound here like a log with a factory width is vertically cut into a predetermined small width with a circular saw, a band saw, or the like to obtain a product. The other method is a method in which a web having a factory width is longitudinally cut by a slitter into a predetermined small width and then wound into a small roll. These use a circular saw, a band saw, a slitter, etc. at the time of vertical cutting. In addition, there is the following description in the JIS standard regarding the width of the toilet paper when it is cut vertically. 114m
Since m is a standard size of a processing machine first introduced for producing toilet paper in Japan, which is 41/2 inches, this paper width has been established and is the most popular size at present. However, it seems that there is no rational basis for this dimension, so we will consider revising the standard in the future, taking into account trends in consumer awareness surveys.

[0003] There are folded paper products that are used in large quantities, but mainly they are tissue paper, paper towels, paper napkins, and the like. These manufacturing methods are
This is a method in which one or two webs are separately cut and folded by a rotary knife 4 shown in FIG. 3, and the other method is
It is a method of folding a large number of webs of 100 or 200 contained in the final package in a vertical direction in a continuous process and sawing the webs into a length for packaging. Further, there is a special shape of the paper napkin, which has a jagged edge, and many webs contained in the final packaging are also cut with a guillotine cutter or scissors having a jagged blade. When cutting these, a rotary knife, a saw, a guillotine cutter, scissors, etc. are used.

A toilet paper characterized in that a cutout is provided from at least one side end toward the center is disclosed, for example, in Japanese Utility Model Application Laid-Open No. 2-11487. This publication teaches that a recess is formed on at least one side edge of the paper, but as with the present invention, it is not possible to reduce the raw material used, and it is easy to cut by providing notches. Not too much. Moreover, there is no specific description about the method.

In order to eliminate material waste and reduce manufacturing costs, continuous webs are cut so that uneven edges are formed symmetrically along the longitudinal center line, and these divided webs are cut to a required length. Forming the constituent member by cutting is disclosed in, for example, JP-A-62-231659 and JP-A-62-25020.
No. 2, pp. 2-291857.
These publications teach that the web is cut so that an uneven edge is formed. However, the webs used in these publications have a narrow width, and two webs obtained by cutting along the longitudinal center line are used. Is designed to form unevenness only on one edge. Moreover, the field of use thereof is limited to the constituent members for wearing articles.

Since the production cost is low if the product is in roll form, it has been proposed to use it in a roll form on a table, but roll paper has already been used in Europe and America for about 150 years since about 1840. It has been used as a toilet paper, and the fixed concept of what is used in the toilet was firmly attached, and due to its raw material shape, it was very difficult to make it a tabletop.

The tissue paper, which has been developed as a desktop paper, fits in a beautifully designed makeup box, is easy to take out, is soft to human skin, and has absorbency and strength, but on the other hand, the box is large, which is an obstacle. However, there is a limit to the packing of paper to make it easy to take out, the cost required for folding and packing is high, and transparent vinyl or the like is used at the mouth of the box, which is environmentally problematic.

[0008]

Conventionally, the yield of sanitary paper products in the factory was limited to 98%, and further improvement in yield could not be expected. In addition, the technology to reduce pulp loss is scarce, and there is a method to increase bulk by dry-drying a sheet that has been dry-processed using a latex-based binder of 20% by dry-making, among the techniques for saving basis weight. There is no way to use pulp fundamentally, and Japan, which will be a timber importing country for a considerable period of time in the future, needs technical and daily savings in response to the decreasing trend of forest resources in the world. Ministries and manufacturers have spent a great deal of time and money researching and teaching, but focusing on product recycling, research on raw materials and manufacturing technology, research on savings from the usage condition and usage method is the product itself. It is hard to handle because it is concerned with the consumption of, and I could not touch it until now.

The present invention is based on the result of consideration from the usage state and usage method of the soft side. Focusing on sanitary paper, which has been considered difficult to find out even the usage state in paper saving technology, In consideration of the fact that it is not recycled at all, corrugated hygiene roll paper was invented to reduce the amount of raw materials used in one product, reduce manufacturing cost, and make it possible to use it on the table by extracting the conventional image from the shape And its manufacturing method.

[0010]

In order to achieve the above object, in the corrugated sanitary roll paper of the present invention, sanitary paper 2 having corrugations 1 at both edges is wound up in the corrugated direction. is there.

When the present invention is used in a toilet, it is indispensable to use sanitary paper that is easily disentangled with water. In addition, it can be used as a stack of two or more sheets, perforation B for cutting out, embossing or crepe processing, no core A, scent, printing letters and pictures It is even better if it is soaked with a drug or antiseptic solution.

When the present invention is used as a facial paper, it is indispensable to use a paper which is hard to be loosened in water. In addition, it can be used as a stack of two or more sheets, perforation B for cutting out, embossing or crepe processing, no core A, scent, printing letters and pictures , Soaked with chemicals or disinfectant, put in the dressing box 9, change the color of the last few rolls, animal fiber, chemical fiber, carbon fiber, glass fiber, ceramic fiber, etc., high tensile strength, Low elongation, high tear strength,
It is even better if the folding endurance is increased.

When the present invention is used for hand-wiping or as an oil drainer for the kitchen, the paper should be made bulky without containing a resin that is hard to be loosened by water or oil and easily melted by heat. Is essential. Others are the same as the conditions for the facial paper.

The shape of the wave is mainly a sinusoidal curve, but it may be an acute angle or a spline, and it is essential that a concave shape and a convex shape of the same shape are periodically repeated. Further, it is preferable that the waves on both edges have symmetrical shapes at positions symmetrical with respect to the longitudinal centerline of the product. The wavelength is preferably 1.5 to 2.5 times the wave height. Also, the position where the perforation B for cutting is provided is
It is preferable to periodically provide the concave portions of the wave.

[0015]

When the corrugated hygienic roll paper configured as described above is used, when dirt is transferred to the paper and processed, the edge is used only for holding in hand and is discarded without being dirty. , The corrugated edges work less than the conventional products because the area of the edges is smaller from the beginning.

When a large number of folded pieces are used, the vertically overlapping corrugated edges work so as to fill up the recesses of each other, and the original recesses are unlikely to remain. If you do not have this function when using it in the toilet, you will feel anxiety when using it compared to conventional products.

When laid on a plate at a table or the like, the waveform of the portion protruding from the end of the plate cleans up the roughness, which was conventionally a straight line or a cut portion of paper, and looks good. Improve In order to make the edge of the full-circle waveform, it is enough to lay them alternately.

[0018]

EXAMPLES Examples will be described with reference to the drawings.
In FIG. 1, the corrugated sanitary roll paper has a shape in which sanitary paper 2 having corrugations 1 at both edges is wound in a direction in which the corrugations are arranged. It is loosened from the roll paper because it is easier to show the shape, and it is wrapped in the product. Regarding the core A, it is better not to have the core A for the purpose of the present invention. However, when the core A is placed in the cosmetic box 9 shown in FIG. Since it works to make C wider, it is better to provide it with the core A because it can be pulled out more smoothly.

Further, the additional requirements described in the means for solving the problems are among those existing at the present technical stage, and therefore, they may be added to the present invention. However, as shown in FIG. 4, the structure of the cosmetic case 9 is vertical and is composed of the cover 5, the lid 6, the center rod 7, and the mounting bottom 8, and the cover 5 may be a product with a picture or letters attached. .

In the embodiment shown in FIG. 5, in order to manufacture a corrugated sanitary roll paper, the web 10a is provided with perforations B by the perforation roller 11 and the corrugated rotary die cylinder 12 is used. 10a is cut in a continuous corrugation in the vertical direction, and an even number of curved bars 13a, 1
By passing 3b, the adjacent divided webs 10b are sufficiently separated in the lateral direction, and the winding drums 14a and 14b
Wind it with the help of the Raidig Roll 15. At this time,
When removing the core, from the core supply kick lever 16,
The metal rod is dropped onto the divided web 10b extending between the winding drums 14a and 14b, and wound as a winding core of the roll 23. At first, reduce the winding tension to wrap the paper loosely and make it easier to remove the core later. When the core is provided, similarly, a long paper core is supplied by the core supply kick lever 16 and the core is wound as the core of the roll 23. The roll 23 that has been wound up is kicked out by the core supply kick lever 16, and the horizontal cutter 17 separates the divided web 1.
It is separated from 0b and rolls down the slope 18. At this time, as shown in FIG. 6, when the slope 18 is reversed, the slope 18 is rotated in the winding direction, so that the product is rolled up neatly. Next, after correcting the vertical and horizontal shakes by the grooved conveyor 19 and the horizontal shake prevention bracket 20, the metal rod is pulled out (not shown) if there is no core, and if there is a core, a circular saw 22 is used to remove the paper core. Disconnect. In the previous step, the log accumulator 21 may be used to adjust the water content. The finished product is sent to the packaging process. In addition, since the manufacturing method of the additional requirement described in the means for solving the problem is among those existing at the current technical stage, it may be added here.

In the embodiment shown in FIG. 7, the curved bar 13
Without using a and 13b, the divided web 10b is vertically divided and then wound. In this method, every other divided web 10b is blown from the air blow tube 24a in the downward direction D, and the lower air blow tube 24b is blown.
Then, the divided web 10b between them is air blown in the upward direction E, and is divided into upper and lower staggers, and then wound up at several positions separated by several guide drums (the guide drum and the upper winding device are (Not shown). As the winding method, a long drum such as the winding drums 14a and 14b may be used, or a conventional winding method may be used. When using a long drum, it is necessary to narrow the gap between the roll papers 23 in order to prevent the core from being wasted.
It is advisable to use the needle changing drums 25a and 25b shown in FIG. 8 between the air blow tubes 24a and 24b and the winding drums 14a and 14b to shift them in one lateral direction. Further, the needle changing drums 25a and 25b can be used for separating the divided web 10b by the curved bars 13a and 13b shown in FIG.

FIG. 9 is an enlarged sectional view of the corrugated rotary die cylinder 12, and FIG. 10 is an overall perspective view thereof. With respect to whether or not the sanitary paper used in the present invention can be cut with the corrugated rotary die cylinder 12 shown here, at the present technical stage, if the thickness is 30 μm or more, it can be easily cut. The method is to put pressure on a trapezoidal die, which is better called a wedge, rather than a blade, and drive it into fibers to cut it. This is possible because the thinnest Kyohana paper in hygiene paper is 37μ.
Since the fiber of Kyohana paper is made from bast fiber with a thickness of 4 to 33μ, it is an extreme example here, and other sanitary papers are made from stem fiber such as softwood and hardwood, and the fiber Since it is 10 to 70 μm, it will bring even better results. The durability of the trapezoidal die is 10
Since it can endure more than 100,000 shots, it satisfies the use of the present invention.
Further, a perforation die may be attached to the corrugated rotary cylinder 12 so that the perforation B for cutting can be inserted simultaneously with the cutting.

FIG. 11 is an overall view of a fourdrinier Yankee type paper machine. A layer of wet paper is formed on the wire 27 of the Ford linear table 26 and is dried to produce paper.
By providing the corrugated protrusions 28a as shown in FIG. 6, the fibers avoid the object and form a layer. It is generally known that the fibers are arranged in the papermaking direction. However, when the corrugated projections 28a are present, the fibers flow along the edges thereof, so that the corrugated projections 28a are very close to each other, as shown in FIG. , The fibers G are arranged in parallel with the corrugated protrusions 28a. Since the length of the stem stem fiber is 2 mm at the longest, if the width F is set to 2 mm or more and the tip is made into an acute angle, the number of fibers straddling the corrugated protrusion 28a becomes very small, and the corrugation can be divided only at that portion. The divided web 10b thus made up is made into a product by the separating method and the winding method.

The corrugated protrusion 28a may be attached to the wire 27 or tied with a thread, but since most of the wires currently used are made of plastic, they can be integrally molded, which is preferable. .

As shown in FIG. 15, the wire 2
7, instead of the corrugated protrusion 28a, the corrugated cut 28
The purpose can be achieved even if b is provided. 16 is a sectional view taken along line VV of FIG.

FIG. 17 shows a wet part of a cylinder net Yankee paper machine. When the cylinder 29 is rotated in the paper making tank 30, a liquid level difference is generated inside and outside the cylinder 29, so that the stock solution 31 tries to enter the cylinder 29 and forms a wet paper web layer on the wire 32. When the wire 32 is provided with the corrugated cut 33, the wet paper web layer is not formed on the cut, and the paper layer can be divided. The width H of the corrugated cut 33 is preferably 1 to 3 mm,
If it is too wide, the liquid level difference will be impaired, and if it is too narrow, the paper layers will be connected. The divided web 10b which has been made up and dried sufficiently in this way is made into a product by the separating method and the winding method. If the edge of the corrugated cut 33 is not left as the cut surface of the wire and the edge is processed as shown in FIG. 20, the fiber is not easily caught there. The wire 27 is preferably the same, but in the case of integral molding, this shape is used from the beginning.

The object can also be achieved by providing a corrugated protrusion 28a instead of the corrugated cut 33.

[0028]

Since the present invention is configured as described above, it brings about the following effects. According to the present invention, while satisfying the functions of the conventional product in each application, an extra product can be manufactured from a certain raw material by an area corresponding to the concave portion of the wave as compared with the conventional product. For example, in the cut portions of adjacent corrugations, this concave portion becomes that convex portion, which is repeated over the width of the base paper or the width of the papermaking, so if the wave height is 15% of the finished width, it will be 15%.
The above products can be produced in excess. Conventionally, 15% of that is attached to the product, and if 15% of that is applied to the annual production of sanitary paper in Japan, it will be about 200,000 t, 385
It reaches 100 million yen. The present invention directly saves that enormous amount of paper. Furthermore, if the scope of application is expanded overseas,
It is important because it will affect the global environment. Further, unlike other paper products, sanitary paper is mainly used to remove stains, and the used paper cannot be recycled, so the present invention is very effective in that field.

When the present invention is used as a toilet paper, it is pointed out that the concave portion of the wave has the minimum width of the paper, and thus the target object may protrude from it. The portion inside the broken line 34 shown in is used, and the use is satisfied in this portion. In addition, when used, it is used by folding it in a large number to increase its strength, and by folding it, a special effect of canceling waves appears and the conventional width is functionally secured. Since the edge portion outside the broken line is not a place where pressure is applied, at least one sheet of paper is enough even if it sticks out, and there is no problem in handling it like a conventional product.

The frills found in women's clothing and the like take great effort to make the shape of clothes look more beautiful. This is how important the edge of an object is in its shape.
This is an example of a story. Corrugation 1 of corrugated hygienic roll paper also brings about the same effect, and can significantly change the raw material image of conventional products, improve the appearance, and enable roll paper to be used on a table. The market for sanitary paper on the desktop is about 150.
It is said that it is 100 million yen, and the significance of the present invention is great.

Conventionally, 70% or more of the purpose of the roll-shaped paper towel is used for fried food, but when it is put on the table as it is, the cut portion is conspicuous and the appearance of the table is spoiled. The present invention has the waveform 1 positioned very well as shown in FIG. 22, and can be used without impairing aesthetics.

Since the present invention is roll-shaped, it does not require a large space unlike the conventional tissue paper in a box, and its bottom area can be 40% of the tissue box. Further, the roll-like shape has a high paper-accommodating capacity per bottom area, and can take in about 30% more paper than, for example, normal tissue paper.

Paper napkins in restaurants, fast food restaurants, etc. are often brought out in large quantities,
It was necessary to look around the store clerk, but this is because a large amount can be taken out at one time, and such a situation does not occur in the state of being put in the cosmetic case 9 shown in FIG. In addition, because it is small, it can be placed one by one on the table, it can supply according to the needs of customers, save the trouble and waste of attaching unused napkins, and if you roll 60 m of paper, it is 3 ~ Since the needs of the 4th day can be met, the labor required for replacement can be reduced.

In the present invention, the height of the corrugation 1 is 30% of the product width.
With the above, a web 35 as shown in FIG. 23 is obtained, but if this web 35 is cut at the position shown by the broken line 36 in the figure, the base paper of the sanitary napkin can be manufactured without waste.

By finding the present invention in the sanitary paper used for daily life, the mind to use the paper more carefully is cultivated.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a corrugated sanitary roll paper.

FIG. 2 is a perspective view of a conventional automatic winding device.

FIG. 3 is a sectional view of a conventional rotary knife.

FIG. 4 is an overall perspective view showing the structure of a chemical break box 9.

FIG. 5 is a diagram showing a manufacturing process of roll paper for corrugated hygiene.

FIG. 6 is a diagram showing a process for manufacturing and improving corrugated hygienic roll paper.

FIG. 7 is a diagram showing a manufacturing process of a corrugated sanitary roll paper.

FIG. 8 is a diagram showing a process for manufacturing and improving corrugated hygienic roll paper.

FIG. 9 is a partial sectional view of a corrugated rotary die cylinder.

FIG. 10 is an overall perspective view of a corrugated rotary die cylinder.

FIG. 11 is an overall view of a Fourdrin Yankee type paper machine.

FIG. 12 is a layout of corrugated protrusions on a Ford linear table.

FIG. 13 is a partially enlarged view of a corrugated protrusion.

FIG. 14 is a partially enlarged view showing the orientation of fibers.

FIG. 15 is an enlarged view of a waveform cut portion of a wire.

16 is a sectional view taken along line VV of FIG.

FIG. 17 is a schematic diagram of a wet part of a cylinder Yankee paper machine.

FIG. 18 is a layout diagram of waveform breaks in a circular net.

FIG. 19 is an enlarged view of a waveform cut portion of a wire.

FIG. 20 is an enlarged view of the corrugated cut edge processing of the wire.

FIG. 21 is a diagram showing an example of use of the present invention.

FIG. 22 is a diagram showing an example of use of the present invention.

FIG. 23 is a diagram showing an application example of the present invention.

[Explanation of symbols]

 1 Sanitary paper 2 Corrugated 5 Cover 6 Lid 7 Center bar 8 Mounting bottom 9 Cosmetic case 10a Web 10b Divided web 12 Corrugated rotary die cylinder 13a Curved bar 13b Curved bar 14a Winding drum 14b Winding drum 15 Riding roll 16 Core supply kick lever 17 Horizontal Cutter 18 Slope 19 Grooved Conveyor 20 Horizontal Shake Prevention Bracket 22 Circular Saw 23 Roll Paper 24a Air Blow Tube 24b Air Blow Tube 25a Needle Drum 25b Needle Drum 26 Ford Linear Table 27 Wire 28a Wavy Protrusion 28b Wavy Cut 29 Circle Net 30 Extract Tank 31 Paper stock liquid 32 Wire 33 Waveform break A core

Claims (4)

[Claims] 1. A sanitary sheet (2) having corrugated edges (1).
Roll paper for corrugated hygiene, characterized by being rolled up in the direction in which the corrugations line up. 2. A divisional web (10b) obtained by corrugating a web (10a) with a corrugated rotary die cylinder (12) to form a continuous corrugation in the longitudinal direction at a plurality of intervals in the transverse direction at regular intervals. A method of manufacturing roll paper for corrugated hygiene, including winding in the longitudinal direction. 3. A corrugated projection (28a) on a wire (27, 32) is applied to a wet paper web layer so as to form a corrugated portion which is continuous in the longitudinal direction at regular intervals a plurality of times at regular intervals. A method for producing a corrugated hygienic roll paper, which comprises winding the raised divided web (10b) in a longitudinal direction. 4. A corrugated cut (28b, 33) on a wire (27, 32) is applied to a layer of wet paper web so as to divide the corrugated layer continuous in the longitudinal direction at regular intervals a plurality of times in the lateral direction. A method for producing a roll paper for corrugated hygiene, which comprises winding the lifted divided web (10b) in a longitudinal direction.