JP2008245780A - Manufacturing method and apparatus for lotion paper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method and an apparatus for lotion paper capable of feeding lotion paper at a high speed, uniformly and sufficiently impregnating base paper with medical solution, and exerting a feeling of "moisture" and "sliminess" due to the medical solution in an early stage. <P>SOLUTION: This manufacturing method of the lotion paper includes: a first spray step for feeding a ply 2 to a spray chamber 6 installed with a nozzle type spray device 4, separating the ply 2 once into two systems of base paper 8 and 10 inside the spray chamber 6, spraying first liquid from a space between the separated two systems of base paper 8 and 10 by the nozzle type spray device 4 to attach the first liquid to the base paper 8 and 10, superposing the base paper 8 and 10 stuck with the first liquid again to form the ply 2 and feeding the ply 2 from the spray chamber 6; and a second spray step for spraying second liquid from both the front/back sides of the ply 2 to attach the second liquid to the ply 2, thus providing the lotion paper. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a production method and a production apparatus for continuously producing lotion paper impregnated with a chemical solution or the like.

  In the field of household thin paper such as tissue paper and toilet paper, lotion paper in which a base paper is impregnated with a chemical solution or the like is known for the purpose of imparting hygroscopicity and flexibility.

  As a method for producing such a lotion paper, a method of applying a chemical solution or the like to a base paper by gravure (for example, refer to Patent Document 1), a method of spraying a chemical solution or the like to the base paper, and the like have been proposed ( For example, see Patent Documents 2 and 3.)

Japanese National Patent Publication No. 10-501853 JP-A-5-156596 JP 2004-236878 A

  In the method of gravure applying a chemical solution or the like to the base paper as described in Patent Document 1, a lotion paper to which the chemical solution or the like is attached is used for the purpose of uniformly and sufficiently impregnating the base paper with the chemical solution. It is rewound and stored for several days. However, during this rewinding, there is a problem that the winding shape deviates greatly from the ideal circular cross section due to its own weight such as a chemical solution, and the shape varies.

  In such a case, there is a problem that bouncing occurs when lotion paper is fed from the rewind roll as well as handling of the rewind roll is difficult. In particular, bouncing occurs remarkably when an attempt is made to increase the feeding speed of lotion paper, which has been a cause of reducing the production speed of lotion paper. Further, in order to avoid the above problems, if the roll winding length during rewinding is shortened and the roll winding diameter is reduced, the number of roll replacements must be increased, and the production efficiency is increased. There was also a problem of lowering.

  On the other hand, the method of spraying a chemical or the like on the base paper as described in Patent Document 2 or 3 is a case where the base paper is not sufficiently impregnated with the chemical or the like, or the impregnation state of the chemical or the like is uneven or uneven. May occur. In addition, compared with a method of applying a chemical solution or the like to a gravure, there is also a problem that a rise time is required until a “moist feeling” or “smooth feeling” due to the chemical solution or the like is sufficiently developed on the lotion paper.

  The present invention has been made in view of such problems of the prior art, and when continuously producing lotion paper impregnated with a chemical solution or the like, the lotion paper can be sent out at high speed, It is intended to provide a lotion paper manufacturing method and manufacturing apparatus capable of uniformly and sufficiently impregnating a chemical solution or the like and capable of promptly expressing a “moist feeling” or “smooth feeling” due to the chemical solution or the like. .

  As a result of intensive studies to solve the above problems, the present inventors have found that the above problems can be solved by spraying a chemical solution or the like from both the inner surface side and the outer surface side of the ply, thereby completing the present invention. It came to do. That is, according to the present invention, the following lotion paper manufacturing method and manufacturing apparatus are provided.

[1] A ply obtained by stacking a plurality of base papers is sent to a spray chamber in which a nozzle sprayer is installed, and the ply is temporarily separated into two base papers inside the spray chamber. The first liquid is sprayed from the space between the base papers by the nozzle-type sprayer to adhere the first liquid to the base paper, and the base papers to which the first liquid is attached are overlapped again to form a ply. Thereafter, a first spraying step of feeding the ply out of the spray chamber, and feeding out the ply, spraying a second liquid from both sides of the ply to adhere the second liquid to the ply to obtain a lotion paper A method for producing lotion paper, comprising a second spraying step.

[2] The first spraying step according to [1], wherein the base paper to which the first liquid is attached is fed between a pair of pressing rolls and pressed to overlap and form a ply. Lotion paper manufacturing method.

[3] The method for producing lotion paper according to [1] or [2], wherein the first spraying step is to spray the first liquid while mixing with air.

[4] In the second spraying step, the ply is sent out in the vertical direction, the second liquid is sprayed from both the front and back sides of the ply by a rotor sprayer, and the second liquid is adhered to the ply. The method for producing lotion paper according to any one of [1] to [3], which is obtained.

[5] The method for producing lotion paper according to any one of [1] to [4], wherein either one of the first liquid and the second liquid is a chemical liquid and the other is a colored liquid.

[6] Any one of the above [1] to [5], in which the delivery speed of the ply is detected and the spray amount of the first liquid and / or the second liquid is adjusted according to the delivery speed. The manufacturing method of the lotion paper of description.

[7] A spray chamber in which a nozzle sprayer is installed, a first guide roll that supports a ply in which a plurality of base papers are stacked inside the spray chamber, and a downstream side of the first guide roll A second guide roll for supporting a system of base paper separated from the ply, and another system separated from the ply, which is also arranged downstream of the first guide roll. A third guide roll for supporting the base paper, and a path of the one base paper formed by the second guide roll, and the other one base paper formed by the third guide roll The lotion paper manufacturing apparatus with which the said nozzle type sprayer is installed in the space between these runways.

[8] A pair of two base papers separated from the ply, which are disposed in the spray chamber and on the downstream side of the second guide roll and the third guide roll, and are pressed together. The lotion paper manufacturing apparatus according to [7], further including a pressing roll.

[9] The lotion paper manufacturing apparatus according to [8], wherein the nozzle sprayer is installed so that the liquid is sprayed toward the pair of pressing rolls.

[10] The nozzle type sprayer is installed so that the liquid is sprayed in the direction of the pair of pressing rolls, and prevents the sprayed liquid from diffusing on both side edges of the pair of pressing rolls. The lotion paper manufacturing apparatus according to [8], wherein a side plate is installed.

[11] Two rotor type sprayers installed downstream from the sprayer, and a fourth guide roll disposed downstream from the spray chamber and supporting a ply delivered from the spray chamber; Similarly, a fifth guide roll disposed downstream of the spray chamber, downstream of the fourth guide roll, and vertically below the fourth guide roll, and the fourth guide roll, The lotion paper according to any one of [7] to [10], further comprising a pair of rotor type sprayers arranged so as to sandwich a path of the ply formed by the guide roll and the fifth guide roll Manufacturing equipment.

  The method and apparatus for producing lotion paper of the present invention can feed lotion paper at a high speed when continuously producing lotion paper impregnated with chemicals, etc. It can be impregnated in a liquid, and a “moist feeling” or “smooth feeling” due to a chemical solution or the like can be expressed at an early stage.

  The best mode for carrying out the lotion paper manufacturing method and manufacturing apparatus of the present invention will be specifically described below with reference to the drawings. However, the present invention broadly encompasses a lotion paper manufacturing method and manufacturing apparatus including the invention-specific matters, and is not limited to the following embodiments.

[1] Method for producing lotion paper:
For example, as shown in FIG. 1, the lotion paper manufacturing method of the present invention feeds a ply 2 in which a plurality of base papers are superposed to a spraying chamber 6 in which a nozzle sprayer 4 is installed. Then, the ply 2 is temporarily separated into two systems of base papers 8 and 10, and the first liquid is sprayed by the nozzle type sprayer 4 from the space between the two systems of base papers 8 and 10 thus separated. After the first liquid is attached to 8, 10 and the base paper 8, 10 to which the first liquid is attached is overlapped again to form the ply 2, the first spray that sends out the ply 2 from the spray chamber 6 is applied. And a second spraying step of sending out the ply 2 and spraying a second liquid from both the front and back sides of the ply 2 to attach the second liquid to the ply 2 to obtain a lotion paper. Is the method.

[1-1] First spraying step:
The “first spraying process” referred to in the present invention refers to, for example, as shown in FIGS. 1 and 2, a ply 2 in which a plurality of base papers are stacked is sent to a spraying chamber 6 in which a nozzle sprayer 4 is installed, Inside the spray chamber 6, the ply 2 is temporarily separated into two systems of base papers 8 and 10, and the first liquid is discharged from the space between the two systems of base papers 8 and 10 by the nozzle sprayer 4. Is sprayed to adhere the first liquid to the base papers 8 and 10, and the base papers 8 and 10 to which the first liquid is attached are superimposed again to form the ply 2, and then the ply 2 is sprayed from the spray chamber 6. 2 is a process of sending out 2.

  In the first spraying step, when spraying the first liquid, a nozzle-type sprayer (so-called spray-type sprayer) is used. Compared with application means such as gravure rolls, the nozzle type sprayer can easily adjust the spray amount of liquid, detect the ply feed rate, and adjust the liquid spray rate according to this feed rate Is also possible. Therefore, even when the ply is sent out at a high speed, if the spray amount of the liquid is increased, the liquid can be sufficiently adhered and impregnated, which contributes to improvement in productivity.

  In addition, “moist feeling (moist touch)” and “smooth feeling (smooth touch)” due to a chemical solution or the like can be expressed at an early stage. Furthermore, by using a nozzle type sprayer, the lotion paper to which the liquid is attached can be directly fed to a process such as processing / cutting without rewinding. Accordingly, it is possible to avoid problems such as difficulty in handling, reduction in production speed, and reduction in production efficiency associated with rewinding lotion paper.

  The nozzle type sprayer is installed inside the spray chamber. This prevents unintentional scattering of the liquid and allows the liquid to adhere to the ply without adversely affecting other processes. For example, the manufacturing apparatus 1 shown in FIG. 1 is provided with a spray chamber 6 in which two internal spaces isolated from the outside are formed, each of which is provided with a nozzle sprayer 4, and two lotion papers are simultaneously applied. It is configured so that it can be manufactured.

  In the first spraying step, a ply obtained by superposing a plurality of base papers is sent to a spray chamber in which a nozzle sprayer is installed, and the ply is once separated into two systems of base paper inside the spray chamber. In this way, by unraveling the laminated state of the plies made of a plurality of base papers and separating them once into two systems of base papers, it becomes possible to spray liquid from the inner surface side of the plies, and a sufficient amount of liquid is applied to the ply It can be deposited and impregnated.

  In addition, when the first liquid sprayed in the first spraying step and the second liquid sprayed in the second spraying step described later are different liquids (particularly different chemical solutions), Unintentional mixing of liquids can be prevented, and the effects of each liquid (especially a chemical solution) can be reliably exhibited.

  Furthermore, by separating the ply inside the spray chamber instead of outside the spray chamber, it is possible to shorten the distance and time when the ply is separated into two systems of base paper. Therefore, even if there is a difference in tension applied to the base paper, one of the base papers may be cut due to excessive tension, or when one of the two base papers is plyed again until it is not cut. It is possible to effectively prevent defects such as wrinkling on the base paper.

  For example, in the manufacturing apparatus 1 shown in FIGS. 1 and 2, the ply 2 fed into the spray chamber 6 is separated into two systems by the first guide roll 12, and one system of base paper 8 is separated into the second guide roll 14. (14a, 14b) and the other base paper 10 is supported by the third guide roll 16 (16a, 16b), thereby maintaining the state where the two base papers 8, 10 are separated. Yes.

  1 and 2 show an example in which the two base papers 8 and 10 are each composed of one base paper 8 and 10, but each base paper is limited to one base paper. Alternatively, a plurality of base papers may be used. Further, when the ply is composed of an odd number of base papers, the number of base papers of one system and the number of base papers of another system may be different.

  The liquid is sprayed by a method in which the first liquid is sprayed from the space between the two separated base papers using the nozzle sprayer. Thereby, a 1st liquid can be made to adhere from the inner surface side of a ply. Examples of the spraying method include a method in which two nozzle sprayers are installed and sprayed toward each of the base papers separated into two systems.

  However, a method of spraying toward the seam when the two systems of base papers are overlapped again to form a ply is preferable. Such a method has the advantage that a single nozzle sprayer is sufficient and the equipment can be simplified. For example, the manufacturing apparatus 1 shown in FIG. 1 employs a method of spraying the first liquid 18 toward the seam when the two base papers 8 and 10 are overlapped again to form the ply 2. ing.

  The first spraying step is preferably a spraying while mixing the first liquid with air. By spraying while mixing the liquid with air, the liquid can be sprayed as fine particles, and the liquid can be sprayed uniformly.

  Moreover, it is preferable that a 1st spraying process is a thing ply | superposed again by sending the base paper to which said 1st liquid was adhered between a pair of press rolls, and pressing it. If the liquid is simply sprayed, the base paper may not be sufficiently impregnated with the liquid, but the base paper (and thus the ply) should be sufficiently impregnated with the liquid by pressing the base paper sprayed with the liquid. Is possible. Therefore, it is possible to impregnate the liquid uniformly and sufficiently without rewinding the base paper to which the liquid is adhered and storing it for several days. Such a method is useful in that it has a high effect of early development of a “moist feeling” and “smooth feeling” due to a chemical solution, etc., and is used in combination with the above-described method of spraying liquid toward the joint of the base paper. This is particularly effective.

  For example, in the manufacturing apparatus 1 shown in FIGS. 1 and 2, when the two base papers 8 and 10 are overlapped again to form the ply 2, the first liquid 18 is sprayed toward the joint portion. In addition, immediately after that, the base paper 8, 10 is fed between the pair of pressing rolls 20 (20a, 20b) and pressed to be overlapped again to form the ply 2.

[1-2] Second spraying step:
The “second spraying step” in the present invention refers to, for example, as shown in FIGS. 1 and 3, sending out the ply 2 and spraying a second liquid from both sides of the ply 2 to the ply 2. It is a step of attaching a second liquid to obtain a lotion paper.

  In this way, by spraying the second liquid from both the front and back sides of the ply, in addition to the inner surface side of the ply sprayed in the first spraying step, the liquid will be sprayed also on the outer surface side of the ply, A sufficient amount of liquid can be attached to the ply and impregnated. That is, in the production method of the present invention, a sufficient amount of liquid is adhered and impregnated by spraying the liquid on the four sides of the front and back surfaces of one system of base paper and the front and back surfaces of another system of base paper. It is possible.

  In the second spraying step, the method for spraying the second liquid is not particularly limited, and for example, the nozzle sprayer used in the first spraying step may be used. However, in the production method of the present invention, a rotor type sprayer can be suitably used. The rotor type sprayer is a type of sprayer in which a plurality of fins are attached to a rotor, the rotor is rotated at a high speed, and the liquid adhering to the fins is sprayed in a mist form by the centrifugal force.

  Like the nozzle type sprayer, the rotor type sprayer can easily adjust the liquid spray amount, so it is possible to detect the ply feed rate and adjust the liquid spray rate according to this feed rate. is there. Therefore, even when the ply is sent out at a high speed, if the spray amount of the liquid is increased, the liquid can be sufficiently adhered and impregnated, which contributes to improvement in productivity. In addition, fine adjustment of the spray amount is possible.

  Furthermore, the rotor type sprayer has a feature that even a high viscosity liquid can be uniformly applied as compared with the nozzle type sprayer. That is, as compared with a nozzle type sprayer, a liquid containing an active ingredient at a high concentration can be sprayed, so that a “moist feeling” or “smooth feeling” due to a chemical solution or the like can be expressed at an early stage. Therefore, it can be suitably used in the production method of the present invention.

  As described above, when a rotor type sprayer is used in the second spraying step, the ply is fed in the vertical direction, and the second liquid is sprayed from both the front and back sides of the ply by the rotor type sprayer to the second ply. It is preferable to obtain a lotion paper by adhering the liquid. By sending out the ply in the vertical direction, even when the ply is sent out at a high speed, it is possible to effectively prevent the ply from turning or fluttering. Therefore, the production speed of lotion paper can be improved.

  For example, in the manufacturing apparatus 1 shown in FIGS. 1 and 3, the ply 2 fed from the spray chamber 6 is disposed downstream of the fourth guide roll 22 and the fourth guide roll 22 and the fourth guide roll 22. The ply 2 can be fed downward in the vertical direction by being supported by a fifth guide roll 24 disposed on the lower side of the roll 22 in the vertical direction. Then, one rotor type sprayer 26 (26a, 26b) is installed on each side of the ply 2 runway so that the second liquid can be sprayed from both the front and back sides of the ply 2. Yes.

  In the production method of the present invention, the rotational speed of the rotor sprayer is not particularly limited, but spraying is usually performed at a rotational speed in the range of 3000 to 7000 rpm. In addition, you may change a rotation speed continuously during spraying.

[1-3] Liquid to be sprayed:
In this specification, for convenience of explanation, the liquid sprayed in the first spraying process is referred to as “first liquid”, and the liquid sprayed in the second spraying process is referred to as “second liquid”. However, the “first liquid” and the “second liquid” are not necessarily different liquids, and may be the same type of liquid.

  As the liquid sprayed by the production method of the present invention, various liquids generally used for lotion paper, for example, liquids containing fragrances, coloring agents, etc. in addition to chemicals containing moisturizers, disinfectants, and other medicinal ingredients (coloring) Liquid etc.) can be used. More specifically, polyhydric alcohols such as glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, and polyethylene glycol; sugars such as sorbitol, glucose, xylitol, maltose, maltitol, mannitol, and trehalose; A liquid (may be a solution) containing one or two or more components in a drug and derivatives thereof; higher alcohols such as cetanol, stearyl alcohol, and oleyl alcohol; liquid paraffin, and the like can be used.

  In addition to the above ingredients or alone, amino acids such as glycine, aspartic acid, arginine, alanine, cystine, cysteine; aloe extract, amacha extract, ashitaba extract, karin extract, cucumber extract, cedar extract, tomato extract, Novara extract , Plant extracts such as loofah extract, lily extract, and lotus extract; vegetable oils such as olive oil, jojoba oil, rosehip oil, almond oil, eucalyptus oil, avocado oil, camellia oil, soybean oil, safflower oil, sesame oil, evening primrose oil; A liquid (a solution containing one or more components among vitamins, hydrolyzed collagen, hydrolyzed keratin, hydrolyzed silk, chitosan, urea, honey, royal jelly, sodium hyaluronate, ceramide, squalane, petrolatum, etc. May also be used) It may be.

  Furthermore, when a component such as a volatile fragrance is blended, a liquid in which such a component is sealed in a microcapsule can be contained. By such a method, it becomes possible to release fragrance | flavor etc. gradually (sustained release property).

  These liquids preferably have a viscosity of 1 to 500 cps measured in accordance with the method described in JIS Z8803 under conditions of normal temperature (20 ° C.). If it is 1 cps or more, the slimy feeling of the lotion paper can be improved. On the other hand, if the viscosity of the liquid is too high, a slimy feeling can be obtained, but even if a rotor type sprayer is used, it may be difficult to apply the liquid uniformly. Therefore, the viscosity of the liquid is preferably 500 cps or less. Further, since the viscosity of the liquid is affected by temperature and humidity, it is also preferable to install a heater in the spray chamber to adjust the temperature, or to adjust the clearance between the pair of pressing rolls according to the temperature and humidity.

  The amount of the liquid to be sprayed is preferably such that the amount of the liquid adhering in the mass of the entire lotion paper is 2 to 30% by mass in the state of the lotion paper which is the final product. It is more preferable to set the amount to be mass%. By setting it to 2 mass% or more, it becomes possible to express a moist feeling and a slimy feeling with certainty. On the other hand, by setting the amount to 30% by mass or less, it is possible to effectively prevent a problem that the amount of liquid is too large and the paper strength becomes weak and the paper breaks in the subsequent steps.

  More specifically, the liquid corresponding to 1 to 5% by mass of the lotion paper obtained in the first spraying step is attached, and the liquid corresponding to 1 to 25% by mass of the lotion paper obtained in the second spraying process. The amount of the liquid adhering to the lotion paper is preferably 2 to 30% by mass, more preferably 4 to 25% by mass.

[1-4] Base paper, ply:
The base paper used in the production method of the present invention is not particularly limited, and examples thereof include base paper for tissue paper, base paper for household paper including toilet paper, and the like. The ply is often a two-ply one in which two base papers are superimposed, but may be a ply in which three, four, or more base papers are superposed.

  The base paper or ply may be crepe paper. The “crepe paper” is paper on which crepe-like ridges are formed. For example, wet paper is attached to the surface of a dryer shell or a press roll of a paper machine and dried, and when the dried paper is scraped with a doctor blade, slack is generated to form a noodle-like wrinkle.

  When crepe paper is used in the production method of the present invention, the crepe rate is preferably 10 to 30%. By setting the crepe rate to 10% or more, softness can be imparted to the base paper or ply. On the other hand, when the content is 30% or less, the thickness of the base paper or ply can be increased, and a lotion paper with a good touch and a high-class feeling can be obtained.

The crepe rate can be calculated by the following equation (1) from the peripheral speed of the dryer shell and press roll of the paper machine and the peripheral speed of the take-up roll.
Rc = {(Va−Vb) / Vb} × 100: (1)
(However, Rc: Crepe rate (%), Va: Dryer shell peripheral speed (unit: m / min), Vb: Winding roll peripheral speed (unit: m / min))

[1-5] Others:
The production method of the present invention includes two spraying steps, a first spraying step and a second spraying step. Therefore, by spraying the same kind of liquid in these two spraying steps, a sufficient amount of liquid can be attached to the ply and impregnated.

  In the production method of the present invention, it is also possible to spray different kinds of liquids in the two spraying steps. For example, it is one of the preferred embodiments that either one of the first liquid and the second liquid is a chemical liquid and the other is a colored liquid. For example, a colored lotion paper can be obtained very easily by spraying a colored liquid in the first spraying step and spraying a chemical solution in the second step.

  Furthermore, in the manufacturing method of the present invention, it is preferable to detect the delivery speed of the ply and adjust the spray amount of the first liquid and / or the second liquid according to the delivery speed. More specifically, when the ply feed speed is high, the liquid spray amount is adjusted to be increased. By doing so, even when the ply is sent out at high speed, the liquid can be sufficiently adhered and impregnated to the ply, which contributes to the improvement of productivity. Such a configuration is used when a method of adhering a liquid by a spray method is employed, particularly when a sprayer that can easily adjust the amount of liquid spray, such as a nozzle sprayer or a rotor sprayer, is used. Achieved for the first time.

[2] Lotion paper manufacturing equipment:
The lotion paper manufacturing apparatus of the present invention has, for example, a spray chamber 6 in which a nozzle sprayer 4 is installed as shown in FIGS. 1 and 2, and a plurality of base papers are stacked inside the spray chamber 6. A first guide roll 12 that supports the ply 2 and a second guide roll 14 that is disposed downstream of the first guide roll 12 and supports a system of base paper 8 separated from the ply 2. And a third guide roll 16 disposed on the downstream side of the first guide roll 12 and supporting another system of base paper 10 separated from the ply 2, and the second guide In the space between the runway of the one line of base paper 8 formed by the roll 14 and the runway of the other one line of base paper 10 formed by the third guide roll 16, the nozzle type sprayer 4 is provided. Installed And that is a manufacturing equipment.

[2-1] Nozzle type sprayer:
The production apparatus of the present invention has a spray chamber in which a nozzle type sprayer is installed. As a result, unintended dispersion of the liquid is prevented, and the liquid can be attached to and impregnated on the ply without adversely affecting other processes. For example, the manufacturing apparatus 1 shown in FIG. 1 is provided with a spray chamber 6 in which two internal spaces isolated from the outside are formed, each of which is provided with a nozzle sprayer 4, and two lotion papers are simultaneously applied. It is configured so that it can be manufactured.

  A plurality of guide rolls are installed inside the spray chamber. Specifically, a first guide roll that supports a ply obtained by stacking a plurality of base papers, and a single base paper separated from the ply that is disposed downstream from the first guide roll is supported. And a second guide roll, and a third guide roll that is disposed on the downstream side of the first guide roll and supports the other one line of base paper separated from the ply.

  By providing the guide roll as described above, it is possible to separate a ply obtained by superimposing a plurality of base papers into two systems of base papers and maintain the state. For example, in the manufacturing apparatus 1 shown in FIGS. 1 and 2, the ply 2 fed into the spray chamber 6 is separated into two systems by the first guide roll 12, and one system of base paper 8 is separated into the second guide roll 14. By supporting the other base paper 10 with the third guide roll 16 (16a, 16b), the two base papers 8, 10 are kept in a separated state.

  In the example shown in the figure, one first guide roll 12 and two second guide rolls 14 and three third guide rolls 16 are installed. However, the manufacturing apparatus of this invention is not limited to such a structure, You may change suitably the number of each guide roll according to the objective.

  Although there is no restriction | limiting in particular about the size of a 1st guide roll, a 2nd guide roll, and a 3rd guide roll, For example, the thing of roll outer diameter 50-100mm (phi) can be used suitably.

  Further, although there is no particular limitation on the distance between the cores of each guide roll, from the viewpoint of shortening the distance and time when the ply is separated into two systems of base paper, the first guide roll and the second guide roll It is preferable that the center distance between the rolls is 300 to 600 mm, and the center distance between the second guide roll and the third guide roll is 300 to 600 mm. By doing this, even if there is a difference in the tension on the base paper, even if one base paper is too tensioned and cut or when it does not lead to cutting, when the two systems of base paper are plyed again In addition, it is possible to effectively prevent a problem that wrinkles occur on one base paper.

  For example, in the example of the manufacturing apparatus 1 shown in FIGS. 1 and 2, the distance between the cores of the first guide roll 12 and the second guide roll 14 (14a, 14b) is 300 to 600 mm, and the second guide. The center-to-core distance between the roll 14a and the third guide roll 16a (or the second guide roll 14b and the third guide roll 16b) may be 300 to 600 mm.

  And in the manufacturing apparatus of this invention, it is between the runway of the said one system of base paper formed by said 2nd guide roll, and the runway of the said other one system of base paper formed by the said 3rd guide roll. The nozzle type sprayer is installed in the space. In this way, by unraveling the laminated state of the ply made of a plurality of base papers and spraying the liquid once separated into two base papers, it becomes possible to spray the liquid from the inner surface side of the ply, A sufficient amount of liquid can be deposited and impregnated.

  For example, in the manufacturing apparatus 1 shown in FIGS. 1 and 2, the running paths of the base papers 8 and 10 are vertically separated by a second guide roll 14 and a third guide roll 16. In the space between the runway (upper runway) of one line of base paper 8 that is formed and the runway (lower runway) of another line of base paper 10 that is formed by the third guide roll 16, the nozzle A sprayer 4 is installed.

  Moreover, in the manufacturing apparatus of this invention, it is preferable that the said nozzle type sprayer is installed so that a liquid may be sprayed toward the direction of a pair of said press roll. By adopting such an installation method, a single nozzle sprayer is sufficient, so that the manufacturing equipment can be simplified and the spray chamber can be saved in space. For example, the manufacturing apparatus 1 shown in FIG. 1 and FIG. 2 is an example in which one nozzle type sprayer 4 is installed for each ply 2, and the one nozzle type sprayer 4 is separated into two pieces. It is installed so that the liquid 18 is sprayed toward the part where the base papers 8 and 10 of the system meet again.

  Furthermore, the manufacturing apparatus of the present invention stacks two base papers separated from the ply, which are arranged in the spray chamber and downstream from the second guide roll and the third guide roll. What further provided with a pair of press roll which unites and presses is preferable.

  If the liquid is simply sprayed, the liquid may not be sufficiently impregnated into the base paper. However, by providing a pressing roll that presses the base paper sprayed with the liquid, the liquid is sufficiently supplied to the base paper (and thus ply). It becomes possible to impregnate. According to such a manufacturing apparatus, a “moist feeling” and a “smooth feeling” due to a chemical solution or the like can be expressed earlier.

  For example, the manufacturing apparatus 1 shown in FIGS. 1 and 2 includes a pair of pressing rolls 20 (20a, 20b) that overlap and press two base papers 8, 10. The pressing roll 20 is disposed inside the spray chamber 6 and on the downstream side of the second guide roll 14 and the third guide roll 16.

  The distance between the surfaces of the pair of pressing rolls is preferably 0.5 to 2 mm. By setting the thickness to 0.5 mm or more, the base paper sandwiched between the rolls is rubbed and cut when the base paper (ply) starts running or when there is a difference in the feeding speed between the upper and lower rolls (" Effectively called “out of paper”. On the other hand, by setting the thickness to 2 mm or less, it is possible to effectively promote liquid impregnation on the base paper.

  Moreover, it is preferable to set the distance between the cores of the third guide roll and the pressing roll to 80 to 200 mm from the viewpoint of shortening the traveling distance and time when the ply is separated into two base papers. By doing this, even if there is a difference in the tension on the base paper, even if one base paper is too tensioned and cut or when it does not lead to cutting, when the two systems of base paper are plyed again In addition, it is possible to effectively prevent a problem that wrinkles occur on one base paper.

  For example, in the example of the manufacturing apparatus 1 shown in FIGS. 1 and 2, the distance between the cores of the third guide roll 16a and the pressing roll 20a (or the third guide roll 16b and the pressing roll 20b) is 80 to 200 mm. And it is sufficient.

  Furthermore, as the manufacturing apparatus of the present invention, the nozzle type sprayer is installed so that the liquid is sprayed toward the pair of pressing rolls, and sprayed on both side edges of the pair of pressing rolls. It is preferable that a side plate for preventing diffusion of the liquid is provided. With such a configuration, the liquid sprayed from the nozzle sprayer is reliably guided in the direction of the pressing roll, and the liquid can be sufficiently adhered to the ply and impregnated.

[2-2] Rotor type sprayer:
As a manufacturing apparatus of the present invention, a fourth rotor type sprayer installed downstream from the sprayer, and a fourth ply fed from the spray chamber disposed downstream from the spray chamber are supported. And a fifth guide roll disposed on the downstream side of the spray chamber, on the downstream side of the fourth guide roll and on the lower side in the vertical direction of the fourth guide roll. In addition, it is preferable to further include a pair of rotor-type sprayers disposed so as to sandwich a path of the ply formed by the fourth guide roll and the fifth guide roll.

  Since such a manufacturing apparatus can send out the ply in the vertical direction, even when the ply is sent out at a high speed, it is possible to effectively prevent the ply from turning and fluttering. Therefore, the production speed of lotion paper can be improved.

  For example, in the manufacturing apparatus 1 shown in FIGS. 1 and 3, the ply 2 fed from the spray chamber 6 is disposed downstream of the fourth guide roll 22 and the fourth guide roll 22 and the fourth guide roll 22. The ply 2 can be fed downward in the vertical direction by being supported by a fifth guide roll 24 disposed on the lower side of the roll 22 in the vertical direction. A pair of rotor sprayers 26 (26a, 26b) are installed on both sides of the ply 2 runway so as to sandwich the runway, and the second liquid is sprayed from both the front and back sides of the ply 2. It is configured to be able to.

  Although there is no restriction | limiting in particular about the center distance of the 4th guide roll and the 5th guide roll 24, For example, it is preferable to set it as 300-600 mm. If it demonstrates in the example of the manufacturing apparatus 1 shown in FIG.1 and FIG.3, what is necessary is just to set the center distance of the 4th guide roll 22 and the 5th guide roll 24 to 300-600 mm. By doing so, the distance for applying the spray liquid to the ply can be ensured, and the installation space does not become unnecessarily large.

  Moreover, it is preferable that the shortest distance of the fin which comprises the runway of the said ply formed by the said 4th guide roll and the said 5th guide roll, and a rotor type sprayer is 5-30 mm. By setting it as 5 mm or more, even when a ply is rolled, it can prevent that a ply contacts a rotor type sprayer. On the other hand, by setting it to 30 mm or less, the gap between the fin and the ply can be kept appropriate, and the liquid can be sprayed uniformly.

  In addition, what further provided a pair of press roll in the downstream of a rotor type sprayer is also preferable. With this pressing roll, the liquid sprayed by the rotor sprayer can be sufficiently impregnated into the ply. In the manufacturing apparatus 1 shown in FIG. 1, a pair of pressing rolls 34 (34 a, 34 a, downstream of the rotor type sprayer 26, more specifically, on the downstream side of the fifth guide roll 24, the guide roll 30, and the tension adjusting roll 32. 34b).

  Hereinafter, the overall configuration of the manufacturing apparatus of the present invention will be described with reference to the example of the manufacturing apparatus 1 shown in FIGS. FIG. 1 is a schematic side view showing the overall configuration of the lotion paper manufacturing apparatus of the present invention, FIG. 2 is a schematic side view showing an enlarged part of the spray chamber of the lotion paper manufacturing apparatus of the present invention, and FIG. It is a schematic side view which expands and shows the vicinity of the rotor type sprayer of the lotion paper manufacturing apparatus of this invention.

  The manufacturing apparatus 1 shown in FIG. 1 is a manufacturing apparatus configured so that two lotion papers can be manufactured simultaneously from two plies. The raw fabric roll 28 is a roll for winding the ply 2 on which the base papers 8 and 10 are overlapped. In this manufacturing apparatus 1, another original fabric roll (not shown on the left side of the drawing) is disposed. The ply 2 is sent out from the original roll 28 and another original roll (not shown). The delivery speed is usually 50 to 600 m / min.

  The sent ply 2 is fed into the spray chamber 6 and is once separated into two systems of base papers 8 and 10 inside the spray chamber 6. The separated base papers 8 and 10 form respective running paths by being supported by the second guide rolls 14 (14a and 14b) and the third guide rolls 16 (14a and 14b).

  A nozzle type sprayer 4 that sprays the liquid 18 on the inner surface side of the ply 2 is installed in the space between the two separated base papers 8 and 10. The nozzle sprayer 4 is installed such that the first liquid 18 is sprayed toward the pair of pressing rolls 20. The base papers 8 and 10 sprayed with the first liquid 18 are overlapped and pressed by a pair of pressing rolls 20 (20a and 20b) to form the ply 2 again.

  The ply 2 formed again is sent out from the spray chamber 6 and supported by the fourth guide roll 22 and the fifth guide roll 24, thereby forming a running path downward in the vertical direction. Then, the second liquid is sprayed on both the front and back surfaces of the ply 2 by a pair of rotor type sprayers 26 (26a, 26b) arranged so as to sandwich the runway.

  The ply 2 sprayed with the second liquid is fed into the pair of pressing rolls 34 (34a, 34b) through the guide roll 30 and the tension adjusting roll 32. When the ply 2 is pressed by the pressing rolls 34 (34a, 34b), the second liquid is also sufficiently impregnated in the ply 2. The tension adjusting roll 32 is a movable roll provided with an arm that can move up and down, and is for adjusting the tension of the ply 2 so that the ply 2 does not loosen.

  The ply 2 sent out from the pair of pressing rolls 34 (34a, 34b) is finally folded, for example, a folding plate type processing machine (also referred to as “multiple machine”) or a rotary cylinder type processing machine ( It is also referred to as “interfolder.”) And the like, and lotion paper is commercialized.

  In an apparatus for manufacturing lotion paper impregnated with liquid and having low strength, such as the manufacturing apparatus of the present invention, it is preferable to use a rotary cylinder processing machine as the folding processing machine. A rotary cylinder type processing machine is a processing machine composed of two cylinders equipped with a vise (gripping) and a tucker (pushing), and the two long plies to be fed are alternately turned while rotating the cylinder. The ply can be folded by repeating the operation of cutting after folding. For example, the manufacturing apparatus 1 illustrated in FIGS. 1 to 3 is an example of a manufacturing apparatus including a rotary cylinder type processing machine 36 as a folding processing machine.

  The method and apparatus for producing lotion paper of the present invention can be suitably used when producing lotion paper having a high commercial value in which a liquid such as a chemical solution is sufficiently impregnated.

It is a schematic side view which shows the whole structure of the lotion paper manufacturing apparatus of this invention. It is a schematic side view which expands and shows a part of spraying chamber of the lotion paper manufacturing apparatus of this invention. It is a schematic side view which expands and shows the vicinity of the rotor type sprayer of the lotion paper manufacturing apparatus of this invention.

Explanation of symbols

1: Manufacturing device, 2: Ply, 4: Nozzle type sprayer, 6: Spray chamber, 8, 10: Base paper, 12: First guide roll, 14, 14a, 14b: Second guide roll, 16, 16a, 16b: Third guide roll, 18: Liquid, 20, 20a, 20b: Pressing roll, 22: Fourth guide roll, 24: Fifth guide roll, 26, 26a, 26b: Rotor type sprayer, 28: Original Anti-roll, 30: guide roll, 32: tension adjusting roll, 34, 34a, 34b: pressing roll, 36: rotary cylinder type processing machine.

Claims (11)

The ply on which a plurality of base papers are stacked is sent to a spraying chamber in which a nozzle type sprayer is installed, and the ply is once separated into two systems of base paper inside the spraying chamber. The first liquid is sprayed by the nozzle type sprayer from the space between the first liquid and the first liquid is adhered to the base paper, and the base paper to which the first liquid is adhered is again overlapped to form a ply, A first spraying step of delivering the ply from the spraying chamber;
A second spraying step of sending out the ply and spraying a second liquid from both sides of the ply to attach the second liquid to the ply to obtain a lotion paper.   2. The lotion paper according to claim 1, wherein the first spraying step is to ply the base paper to which the first liquid is attached between a pair of pressing rolls and press the base paper again to form a ply. Production method.   The method for producing lotion paper according to claim 1 or 2, wherein the first spraying step sprays the first liquid while mixing it with air.   In the second spraying step, the ply is fed in the vertical direction, and a second liquid is sprayed from both the front and back sides of the ply by a rotor sprayer to adhere the second liquid to the ply to obtain lotion paper. The manufacturing method of the lotion paper as described in any one of Claims 1-3.   One of said 1st liquid and said 2nd liquid is a chemical | medical solution, and the other is a coloring liquid, The manufacturing method of the lotion paper as described in any one of Claims 1-4.   The lotion paper according to any one of claims 1 to 5, wherein a delivery speed of the ply is detected, and a spray amount of the first liquid and / or the second liquid is adjusted according to the delivery speed. Manufacturing method. Having a spray chamber with a nozzle sprayer installed;
Inside the spray chamber, a first guide roll that supports a ply in which a plurality of base papers are stacked, and a single base paper separated from the ply, which is disposed downstream from the first guide roll. A second guide roll for supporting, and a third guide roll disposed on the downstream side of the first guide roll, and supporting another system of base paper separated from the ply,
The nozzle type sprayer is disposed in a space between the runway of the one system of base paper formed by the second guide roll and the runway of the other system of base paper formed by the third guide roll. Installed lotion paper production equipment.   A pair of pressing rolls, which are disposed inside the spray chamber and on the downstream side of the second guide roll and the third guide roll, and stack and press two systems of base paper separated from the ply. The lotion paper manufacturing apparatus according to claim 7, further comprising:   The lotion paper manufacturing apparatus according to claim 8, wherein the nozzle sprayer is installed so that liquid is sprayed toward the pair of pressing rolls. The nozzle type sprayer is installed so that the liquid is sprayed toward the pair of pressing rolls,
The lotion paper manufacturing apparatus of Claim 8 with which the side plate which prevents the spreading | diffusion of the sprayed liquid is installed in the both-sides edge side of the said pair of press roll.   Two rotor-type sprayers installed downstream from the sprayer, a fourth guide roll disposed downstream from the spraying chamber and supporting a ply delivered from the spraying chamber, and the spray A fifth guide roll disposed downstream of the chamber, downstream of the fourth guide roll and vertically below the fourth guide roll; and the fourth guide roll The lotion paper manufacturing apparatus according to any one of claims 7 to 10, further comprising a pair of rotor-type sprayers arranged so as to sandwich a path of the ply formed by the fifth guide roll.

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