JP4317539B2 - CHEMICAL SOLUTION COATING SYSTEM, CHEMICAL SOLUTION COATING METHOD, AND METHOD FOR PRODUCING CHEMICAL SOLUTION-CONTAINING TISH PAPER - Google Patents

Description

  The present invention relates to a system and a coating method for applying a chemical solution such as a fragrance to tissue paper, and a method for producing a chemical-coated tissue paper.

  For example, the following is a conventional example of manufacturing equipment for box-type tissue paper. That is, first, a thin paper is made in a paper making apparatus, and this is wound up to produce a primary raw roll (generally also referred to as a jumbo roll). Then, as shown in FIG. 4, the primary raw rolls JR and JR are plyed. The primary continuous sheets 101 and 102 fed out from a plurality of primary rolls JR and JR are set on the machine 100 and rolled up and rolled into a ring (divided into a plurality in the width direction) to form a secondary comprising a plurality of plies. The raw fabric roll 110 is manufactured.

  The secondary roll manufactured by the ply machine is taken out from the ply machine and then set in the inter folder. FIG. 5 shows a folded plate type interfolder 1. In the figure, the secondary web roll R set on the web roll support 2 of the interfolder 1 is shown. The required number of secondary raw rolls R are set side by side in a direction orthogonal to the plane of the drawing. In this example, the secondary fabric roll R is slit in advance to the width of the product tissue paper by a ply machine (not shown). The roll roll R wound up in a plurality of times, for example, twice the width, is set.

  Secondary continuous sheets (hereinafter simply referred to as “sheets”) 3A and 3B fed from the secondary web roll R are fed into the folding mechanism section 20 through guide bodies such as guide rollers G1 and G1. In the folding mechanism section 20, as shown in FIGS. 5 and 6, a necessary number of folded plates P, P... Are arranged in parallel to form a folded plate group 21, and each folded plate P, P. Guide bodies such as guide rollers G2 and G2 and guide rods G3 and G3 for guiding the pair of sheets 3A and 3B, respectively, are disposed at appropriate positions, and are folded under the folded plates P, P. A conveyor 22 that receives and conveys the stacked laminate 30 is disposed.

  A folding mechanism using this type of folded plates P, P... Is known, for example, from US Pat. No. 4,052,048, and is generally called a folded plate type or multi-stand type interfolder. As shown in FIG. 7, the sheets 3A, 3B... Are stacked while being folded in a Z-shape and the side edges of the adjacent sheets 3A, 3B.

  8 to 11 illustrate the relationship between the folding mechanism and the folding plate. Briefly, as shown in FIGS. 8 to 11, first, a pair of sheets 3A and 3B are guided to each folded plate P. At this time, these sheets 3A and 3B are external surfaces of a guide bar (forming bar) G3. And is guided while being shifted in position so that the side ends overlap each other. Here, assuming that the sheet whose side edge overlaps with the lower side when guided by the folded plate is the first sheet 3A, and the sheet that overlaps with the upper side is the second sheet 3B, these sheets 3A, 3B, as shown in FIG. 7 and FIG. 9, the side end e1 that does not overlap the second sheet in the first sheet 3A is folded back to the upper side of the second sheet 3B by the side plate P1 of the folded plate, As shown in FIGS. 7 and 10, the side end e2 of the second sheet 3B that does not overlap the first sheet 3A is folded downward so as to be drawn onto the folded plate from the slit P2 of the folded plate P. At this time, as shown in FIG. 7 and FIG. 11, the folded end e3 of the uppermost layer of the sheet 3A folded and stacked in the upstream folded plate P is moved from the slit P2 of the folded plate P to the second sheet 3B. Wrapping It is guided to the minutes. Thus, each sheet 3A, 3B... Is folded in a Z-shape and the side edges of the adjacent sheets 3A, 3B are crossed together, and when the product is used, the next tissue paper is pulled out. It comes to be.

  In this way, the folded laminate 30 manufactured by the interfolder 1 is cut at a predetermined interval in the longitudinal direction in the downstream equipment, and becomes a tissue paper product through processing such as boxing and packaging.

By the way, tissue paper coated with chemicals such as fragrances is well known. In manufacturing such tissue paper products, a process of applying chemicals to tissue paper is required. Conventionally, chemical application to such tissue paper is performed on the continuous sheet before being set in the above-described interfolder. This is done by spraying chemicals. That is, with respect to the primary continuous sheets 101 and 102 fed out from the continuous thin paper sheet JR after making the thin paper and before winding the primary raw roll JR, or the primary raw rolls JR and JR before making the secondary raw roll A chemical solution is applied. The chemical solution is applied by printing and applying the chemical solution to the continuous sheet before winding, or by spraying the chemical solution along the width direction of the continuous sheet from above or below the flowing primary continuous sheet. Is called.
JP 2002-347146 A JP 2001-252214 A

  However, such conventional chemical solution application has the following drawbacks. (1) Primary continuous rolls (jumbo rolls) and primary continuous sheets before being wound on secondary rolls are so wide that it is difficult to evenly spread chemicals across the width. May cause unevenness. (2) When a chemical solution is applied to the wide continuous sheet, a large amount of volatile components in the chemical solution are scattered in the factory, which deteriorates the factory environment. (3) In addition, since continuous thin paper sheets and primary continuous sheets are in the initial stage of product production, when chemicals are applied at this stage, some chemicals volatilize in the process of transferring to the next process such as an interfolder, There may be variations in quality when the product is manufactured. (4) Furthermore, the chemical solution must be applied excessively in consideration of volatilization, and the chemical solution is used unnecessarily. (5) In addition, particularly when applying a chemical solution by printing, a large-scale printing facility such as a transfer roll is required, and the operation speed is reduced.

  Therefore, the main problem of the present invention is to eliminate unevenness in the application of the chemical solution in the tissue paper to which the chemical solution is applied, to eliminate variations in product quality, and to reduce the use amount of the unnecessary chemical solution to reduce the manufacturing cost. It is in.

And this invention which solved this subject, and its operation effect are as follows.
<Invention of Claim 1>
An inter roll comprising a web roll support section and a folding mechanism section, transporting a continuous sheet fed from the roll roll attached to the web roll support section along the continuous direction, and folding the sheet by the folding mechanism section. In a folder, a system for applying a chemical to the continuous sheet,
At least one guide rod that is provided in a continuous sheet guide path from the original roll support section to the folding mechanism section and that turns the continuous sheet during the continuous sheet transfer process and does not rotate. The application port is formed on the outer surface of the two guide bars ,
A chemical solution discharge device is connected to the application port,
A chemical solution application system characterized by that.

(Function and effect)
By forming the application port in at least one guide body itself that guides the continuous sheet, the chemical solution can be applied more uniformly and effectively in the width direction when in contact with the guide body.
And in an inter folder, the width | variety of the continuous sheet | seat which flows through the guide path from an original fabric roll support part to a folding mechanism part is the same width as a product width. Accordingly, since the chemical solution is applied to a sheet that is very narrow compared to the primary continuous sheet or the like, it is easy to apply the chemical solution uniformly in the width direction, and there is no uneven application. Further, the folded laminate formed by the interfolder is stored in the storage box immediately after cutting. Therefore, in this configuration, the paper after the chemical solution is applied is immediately stored in the storage box, and a large amount of volatile components in the chemical solution are not scattered in the factory and the factory environment is not deteriorated. In addition, there is less risk of quality variation due to chemical volatilization. Furthermore, it is not necessary to use an excessive amount of the chemical compared to the case where the chemical is applied at the initial stage of the product.
In addition, since the chemical solution is applied to the continuous sheet from the application port provided on the outer surface of the guide body instead of printing, no printing equipment is required and the operation speed is not reduced.
In addition, the guide route to the folding mechanism part in the present invention is meant to include the folding mechanism part. However, the continuous sheet to which the chemical solution is applied in the present invention does not include a folded laminate.
In addition, since the guide body that turns around the continuous sheet during the transfer process always comes into contact with the continuous sheet in the width direction, by forming an application port in the guide body itself, The chemical solution can be more uniformly applied in the width direction of the continuous sheet.

<Invention of Claim 2>
Said interfolder;
A plurality of plies wound with a plurality of widths of the product tissue paper, each of which is slit in advance in accordance with the width of the product tissue paper, are attached to the original roll support part, respectively. 2. The chemical solution coating system according to claim 1, wherein the system is an interfolder configured such that a plurality of continuous sheets fed out from an anti-roll are stacked while being guided to the folding mechanism unit and folded.

(Function and effect)
In particular, it is suitable for the interfolder of this configuration.

<Invention of Claim 3>
The chemical | medical solution application system of Claim 1 or 2 with which the said application port is formed in the site | part which faces the continuous sheet which passes the said guide rod .

(Function and effect)
In this configuration, the chemical solution is applied to the continuous sheet immediately after passing through the guide body. Therefore, at least the guide body does not rub against the continuous sheet after the chemical solution is applied. Therefore, the chemical solution applied to the continuous sheet is not reduced by the chemical solution being taken by the guide body by volatilization or contact due to friction with the guide body. Moreover, the time which a chemical | medical solution osmose | permeates in a sheet | seat is ensured until the chemical | medical solution provided to the continuous sheet contacts the following guide body.

<Invention of Claim 4>
There are a plurality of application ports, and the application port group row is formed in a row along the longitudinal direction of the guide rod, and the length of the application port group row is longer than the passage width of the continuous sheet in the guide body. The chemical | medical solution application | coating system of any one of Claims 1-3 by which the opening of this application opening is 0.5-2 mm (PHI).

(Function and effect)
When the guide body has a rod-like shape, it is necessary to provide a row of coating openings with sufficient length along the longitudinal direction of the guide body, and to provide an appropriate opening of the coating opening without disturbing the transfer of continuous paper. The chemical solution can be efficiently applied.

<Invention of Claim 5>
The chemical | medical solution application | coating system of Claim 5 with which the distance between the application openings of the said application opening group row | line is 1-3 mm.

(Function and effect)
Due to the appropriate distance between the application ports, it is easy to apply the chemical solution uniformly in the width direction, and there is no uneven application.

<Invention of Claim 6>
An interfolder that includes an original roll support part and a folding mechanism part, transports a continuous sheet fed from the original roll set in the original roll support part along the continuous direction, and is folded by the folding mechanism part In the method of applying a chemical to the continuous sheet,
At least one guide rod that is provided in a continuous sheet guide path from the original roll support section to the folding mechanism section and that turns the continuous sheet during the continuous sheet transfer process and does not rotate. A chemical solution application method, wherein a chemical solution is applied to the continuous sheet from an application port provided on an outer surface of one guide rod .

(Function and effect)
Since the chemical solution is applied to the narrow continuous sheet having the same width as the product width in the interfolder, it is easy to apply the chemical solution uniformly in the width direction, and there is no uneven application. In addition, since the paper after applying the chemical solution is immediately stored in the storage box, a large amount of volatile components in the chemical solution are not scattered in the factory and the factory environment is not deteriorated. In addition, there is less risk of quality variation due to chemical volatilization. Furthermore, it is not necessary to use an excessive amount of the chemical compared to the case where the chemical is applied at the initial stage of the product.

<Invention of Claim 7>
An interfolder that includes an original roll support part and a folding mechanism part, transports a continuous sheet fed from the original roll set in the original roll support part along the continuous direction, and is folded by the folding mechanism part Of the guide rod which is provided in the guide path of the continuous sheet from the original fabric roll support part to the folding mechanism part, turns around the continuous sheet during the transfer process of the continuous sheet, and does not rotate itself. From an application port provided on the outer surface of at least one guide rod ,
A chemical solution is applied to the continuous sheet, and the method for producing a chemical-coated tissue paper is characterized in that:

(Function and effect)
The same effects as those of the first aspect of the invention can be achieved.

  As described above, according to the present invention as described in detail, there is no unevenness in the application of the chemical solution in the tissue paper to which the chemical solution is applied, there is no variation in product quality, the amount of unnecessary chemical solution used is reduced, and the manufacturing cost is reduced. Can be reduced.

Hereinafter, embodiments of the present invention will be described in detail based on an example in which a chemical solution is applied to a guide bar also called a forming bar among the guide bodies in the above-described interfolder.
FIG. 1 shows an example in which the chemical solution application system of the present invention is applied to the interfolder having the folding mechanism unit 20 described above, and an application port 10 is formed on each of the guide rods G3, G3,. A discharge device 11 is connected to the coating port 10.
More specifically, as shown in FIGS. 2 and 3, the guide rod G <b> 3 has a hollow round bar shape, and the secondary continuous sheet 3 is wound around the outer peripheral surface of the guide rod G <b> 3. Guided. A plurality of coating ports 10 are opened in a row along the longitudinal direction on the outer surface of the guide rod G3. The formation position of the coating port group row 10 can be appropriately determined in consideration of the passage route of the sheet 3 and the like. For example, it can be formed on the entry side a of the sheet 3 or the contact portion b of the sheet 3, but the guide It is preferable to form it on the part facing the sheet 3 that has passed through the rod G3, specifically on the exit side c of the sheet.

  Further, in such a coating port configuration, the length of the coating port group row 10 and 10 is longer than the passage width of the sheet 3 in the guide rod G3 (in the case of an interfolder of boxed tissue paper, for example, 400 mm). It is preferable that the opening of one coating port is about 0.5 to 2 mmΦ. Desirably, the thickness is about 1 mmΦ. In particular, when the opening is too wide, the chemical liquid is excessively applied to the continuous sheet and the transfer is disturbed, or the wet state of the continuous sheet is different between the surface to which the chemical liquid is directly applied and the surface to which the chemical liquid is not applied. This will cause tearing of the continuous sheet. On the other hand, if it is too small, the chemical application time for the continuous sheet is shortened, and the chemical cannot be applied sufficiently. Further, it is preferable that the distance between the coating ports is about 1 to 3 mm. Desirably, the thickness is about 2 mm. In particular, when the distance is too large, a portion where the chemical liquid is not applied to the continuous sheet is likely to occur, which may cause uneven coating. On the other hand, if it is too small, it will be difficult to generate a part where no chemical is applied, but it will be easy to generate a part where a large amount of chemical is applied to a continuous sheet and a part where a small amount of chemical is applied, leading to uneven application. But it will cause tears.

  A discharge device 11 is connected to the coating port 10. The discharge device 11 is configured by a pump unit that pumps the chemical stored in the storage tank to the application port. The chemical solution is continuously pumped to the application port by the pump means, and the chemical solution is applied to the continuous sheet by spraying or spraying from the application port. A known pump means can be used.

  When the interfolder 1 is in operation, the sheet 3 is continuously turned through the guide rod G3 and supplied to the folded plate P. At this time, the chemical solution application system of the present invention is operated to apply the chemical solution through the application port 10 formed in the guide rod G3. Application is preferably carried out continuously during operation, but can also be carried out intermittently or at any time.

  When the application port 10 is formed at the position of the present embodiment and the chemical liquid is applied to the sheet that has passed through the guide rod G3, the chemical liquid application surface is scraped by rubbing the chemical liquid application sheet with the guide rod G3. There is nothing. Moreover, in this structure, as shown in FIG. 3, it will act so that the sheet | seat 3 may move away from a guide bar with chemical | medical solution injection, and compared with the case where it provides in another site | part, the frictional resistance in the guide bar G3 The increase of can be reduced. Therefore, there is also an advantage that a decrease in operating speed due to an increase in frictional resistance can be prevented. When the chemical liquid is sprayed from the application ports 10 and 10 to apply the chemical liquid to the continuous sheet 3, the friction between the guide rod G3 and the continuous sheet 3 is particularly reduced.

(Other)
(A) The guide body of the present invention is particularly preferably a guide body (guide rod) G3 called a forming bar, as described above, which turns a secondary continuous sheet around the transfer process and changes its direction. Is not to be done. The guide body in the present invention is a guide body provided in a continuous sheet guide path from the raw roll R support section to the folding mechanism section 20, and is not limited by its shape or size. Preferably, the continuous sheet 3 is guided in contact with and supported in the width direction. Usually, the forming bar G3 itself does not rotate.

(B) The product manufactured from the continuous sheet 3 is not limited to tissue paper. Further, as can be seen from this, even when used for tissue paper, the present invention is not limited to the interfolder as in the above example, but can be applied to other types of interfolders, such as a rotary interfolder. .

(C) In addition to providing one coating port 10 for each guide body G1 to G3, a plurality of coating ports 10 can be provided. In this case, the position of the coating port 10 is shifted, for example, the entrance side a of the guide body G3 in FIG. A coating port group can be formed on the outlet side c, and can be formed on the sheet contact portion b and the outlet side c.

(D) Examples of the chemical solution to be applied in the present invention include known fragrances, wetting agents, softening agents, smoothing agents, deodorants and the like.
Examples of the fragrances include natural fragrances such as menthol, mint, lavender and rosemary, rose fragrance, citrus fragrance, cypress fragrance, and synthetic fragrances. Can be mentioned.
Examples of the wetting agent include polyhydric alcohols such as glycerin, diglycerin, sorbit, and pentaerythlit.
Softeners include quaternary ammonium salts, amine salts, or amines. Examples of the smoothing agent include polysiloxanes such as dimethylpolysiloxane, amino-modified silicone, and polyether silicone oil.
Examples of the deodorant include various essential oils such as wood extracts such as hiba, cypress and cedar, and plant extracts such as chamomile, sasa, mugwort, tea and perilla.
These chemical solutions can be used even in a stock solution prepared for viscosity or the like, but can also be diluted with water. In particular, when diluted with water, if the moisture content is large, the wet state of the continuous sheet will be different between the surface to which the chemical solution is directly applied and the surface to which it is not applied, causing a difference between the front and back, causing the continuous sheet to tear. become. Preferably, the moisture content ratio is 13% or less.

  The present invention can be used not only for boxed tissue paper, but also for other types of products such as kitchen paper and paper towels that are stored in a storage box after creating a laminate using an interfolder.

It is the schematic of the paper dust removal system which concerns on this invention. It is an enlarged view of a guide body part. It is a cross-sectional view of a guide body. It is the schematic of a ply machine. It is a side view of an inter folder. It is a front view of a folding mechanism part. It is a longitudinal cross-sectional view which shows how to fold. It is a principal part expansion perspective view of a folded-plate part. It is a principal part expansion perspective view which shows how to fold. It is a principal part expansion perspective view which shows how to fold. It is a principal part expansion perspective view which shows how to fold.

  DESCRIPTION OF SYMBOLS 1 ... Inter folder, 2 ... Original fabric roll support part, R ... Secondary raw fabric roll, 3, 3A, 3B ... Secondary continuous sheet, 10 ... Coating port, 11 ... Discharge device, 12 ... Chemical solution tank, 20 ... Fold Tatami mechanism.

Claims (7)

An inter roll comprising a web roll support section and a folding mechanism section, transporting a continuous sheet fed from the roll roll attached to the web roll support section along the continuous direction, and folding the sheet by the folding mechanism section. In a folder, a system for applying a chemical to the continuous sheet,
At least one guide rod that is provided in a continuous sheet guide path from the original roll support section to the folding mechanism section and that turns the continuous sheet during the continuous sheet transfer process and does not rotate. The application port is formed on the outer surface of the two guide bars ,
A chemical solution discharge device is connected to the application port,
A chemical solution application system characterized by that. Said interfolder;
A plurality of plies wound with a plurality of widths of the product tissue paper, each of which is slit in advance in accordance with the width of the product tissue paper, are attached to the original roll support part, respectively. 2. The chemical solution coating system according to claim 1, wherein the system is an interfolder configured such that a plurality of continuous sheets fed out from an anti-roll are stacked while being guided to the folding mechanism unit and folded. The chemical | medical solution application system of Claim 1 or 2 with which the said application port is formed in the site | part which faces the continuous sheet which passes the said guide rod . There are a plurality of application ports, and the application port group row is formed in a row along the longitudinal direction of the guide rod, and the length of the application port group row is longer than the passage width of the continuous sheet in the guide body. The chemical | medical solution application | coating system of any one of Claims 1-3 by which the opening of this application opening is 0.5-2 mm (PHI). The chemical | medical solution application | coating system of Claim 4 with which the distance between the application openings of the said application opening group row | line is 1-3 mm. An interfolder that includes an original roll support part and a folding mechanism part, transports a continuous sheet fed from the original roll set in the original roll support part along the continuous direction, and is folded by the folding mechanism part In the method of applying a chemical to the continuous sheet,
At least one guide rod that is provided in a continuous sheet guide path from the original roll support section to the folding mechanism section and that turns the continuous sheet during the continuous sheet transfer process and does not rotate. A chemical solution application method, wherein a chemical solution is applied to the continuous sheet from an application port provided on an outer surface of one guide rod . An interfolder that includes an original roll support part and a folding mechanism part, transports a continuous sheet fed from the original roll set in the original roll support part along the continuous direction, and is folded by the folding mechanism part Of the guide rod which is provided in the guide path of the continuous sheet from the original fabric roll support part to the folding mechanism part, turns around the continuous sheet during the transfer process of the continuous sheet, and does not rotate itself. From an application port provided on the outer surface of at least one guide rod ,
A chemical solution is applied to the continuous sheet, and the method for producing a chemical-coated tissue paper is characterized in that:

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