JP5528170B2 - Raw material rack - Google Patents

Description

  The present invention relates to a rack for a raw material that prevents a roll of the raw material from being unwound and enables stable operation even when the paper material absorbs moisture, for example, a multi-stand type interfolder. It can be applied to the storage and transport of secondary rolls for tissue paper products to be used in

  A box of tissue paper is generally obtained by stacking multiple tissue papers by folding them with an interfolder (folding equipment) and cutting them into a predetermined length to obtain a tissue paper bundle. It is manufactured by storing in a storage box (tissue carton).

  As examples of such an interfolder, a multi-stand interfolder is known in addition to a rotary interfolder. As a conventional example of a manufacturing method using this multi-stand type interfolder, there is the following.

  First, a primary web roll (generally also called a jumbo roll) is manufactured by making sanitary thin paper in a papermaking facility and winding it, and then this primary web roll is set in a ply machine, and a plurality of primary rolls are produced. The primary continuous sheet fed from the roll is rolled up and wound, and slits (each product width of the tissue paper product in the width direction) are made to be an even multiple of the product width of the tissue paper product. A secondary material roll made of the ply is manufactured.

  Thereafter, secondary rolls manufactured by the ply machine are taken out of the ply machine and then set in a multi-stand type interfolder as many times as necessary. Next, the secondary continuous sheet is fed out from the secondary web roll and fed to the folding mechanism, where it is stacked while being folded, and then cut into a predetermined length to form a tissue paper bundle, which is stored in a storage box. . In addition, since the manufacturing method using such a multi-stand type interfolder has a large number (about 80 to 100) of folding mechanism units as compared with the manufacturing method using other folding equipment, it is produced. It has the advantage of high performance. Here, one of the folding mechanism units is a unit of a mechanism that folds two rows of tissue paper slit into the product width of the tissue product so as to enter inside each other.

  By the way, it is said that there is currently a demand for 800 tons / month of moisturizing tissue paper, which is a tissue paper product in which chemical liquids such as moisturizing agents and fragrances are added to tissue paper products. As the rate increases, the population used and the amount used continue to increase, and demand is expanding. Therefore, as the demand for moisturizing tissue has increased, it has been necessary to manufacture the moisturizing tissue using a multi-stand type interfolder with higher productivity.

  In order to produce moisturizing tissue paper with a multi-stand type interfolder, various types of printing can be used in any of the paper making process, ply machine process (secondary roll roll production), and folding process (multi-stand type interfolder). It is necessary to apply and apply a chemical solution using a method such as a method, a spray method, a spray method, and an ink jet method. However, on-machine coating in the papermaking process is usually performed at a high speed of 1000 m / min or higher and low-viscosity chemicals, so there are technically difficult issues such as chemical splashes and low chemical yields. difficult.

In addition, in order to apply on-line chemical solution in a multi-stand type interfolder, a large number of chemical solution application devices are provided for each width corresponding to the supplied secondary roll width (sheet width that is an even multiple of the tissue product width). It is necessary to install it between the secondary roll roll feed-out part and the folding mechanism part, but at this time, it is difficult to manage the application amount of each chemical solution applicator uniformly, and a lot of equipment It is not practical because it costs money.
On the other hand, the chemical solution application in the ply machine process needs to be applied at a relatively high speed (usually 700 m / min or more), but basically it is possible to apply the chemical solution uniformly to a wide ply sheet. It is one of the effective chemical solution application methods because it is easy to circulate and recycle the chemical solution.

However, when the chemical solution is applied by the ply machine, the sanitary thin paper in a state where the chemical solution is applied is once wound up by the ply machine to become a secondary raw roll, but there are also some problems in this case.
In other words, this secondary web roll becomes a stock containing a chemical solution, but this secondary web roll is a large roll with a diameter of over 1 m, but this large roll secondary roll. In the raw fabric roll, the sanitary thin paper is stretched by the applied lotion chemical being absorbed by the sanitary thin paper over time. In addition, the applied chemical solution lowers the frictional resistance of the sheet surface and makes it easier for the tissues to slip.

  And the secondary original fabric roll which is the large roll original fabric with which the chemical | medical solution is apply | coated is processed by a multi-stand type | system | group interfolder after letting moisture absorb for a predetermined time, and becomes tissue paper. However, there is a possibility that the secondary web roll rolls out when it is processed into tissue paper as the secondary web roll absorbs the chemical. That is, it is necessary to move the large roll of the secondary roll between processes, but conventionally, the secondary roll with the chemical solution applied is gripped by the clamp and moved. As a result, the clamping pressure causes the sandwiched portion of the secondary roll R to be deformed as shown in FIG. 18 so that the sandwiched pressure is distributed between the sheets. It has been considered that a part of the sheet is displaced like a hook in the width direction and / or a winding slip occurs in which the sheet is shifted back and forth in the feeding direction. In addition, with the occurrence of this winding deviation, there is a defect that a defective product in which wrinkles enter a tissue paper as a finished product occurs.

On the other hand, various structures are known in order to prevent unwinding of the original fabric.
For example, as shown in Patent Document 1, a roll body conveying device that has a core at the center and delivers two roll bodies, and receives a roll body as shown in Patent Document 2, and prevents damage due to misalignment of the original fabric during operation. 2. Description of the Related Art A roll body transport device and a roll body transport device that receives a roll body as shown in Patent Document 3 and prevents a collision due to a winding deviation of an original fabric during an operation are known.

JP 2008-214069 JP 2008-195525 A JP 2008-214004 A

  However, even with the structures shown in these patent documents, there is no such thing as preventing the winding of sanitary thin paper, which is a paper material such as tissue paper, and the secondary fabric that is the original fabric over time. As a result of hygroscopic absorption of the sanitary thin paper constituting the original fabric roll, there has been nothing that can prevent winding slippage that occurs during storage and conveyance of the secondary original fabric roll.

  Accordingly, a main problem of the present invention is to provide a raw material rack that prevents a raw material from being unwound and can be stably operated by preventing the raw material from being deformed even when the paper material absorbs moisture. It is in.

The raw fabric rack according to claim 1 includes a support portion that supports a central portion of the raw fabric on which the paper material is wound,
An introduction part connected to the support part and used as a guide for the original fabric;
A rack body provided with a support part and an introduction part and movably formed ,
A support portion and an introduction portion are formed continuously, and a frame portion that is an outer frame is formed on the outer peripheral portion of the rack body,
One end of the introduction portion is connected to the frame portion, and the lower side of the support portion is coupled to the rack body .

The operation of the raw fabric rack according to claim 1 will be described below.
According to the original fabric rack of this claim, the support portion supports the central portion of the original fabric around which the paper material is wound, and the introduction portion which is used as the guide for the original fabric is connected to the support portion. . And the rack main body formed so that movement is provided with these support parts and introduction parts.

Therefore, for example, after being wound after slit processing and rolled into a raw fabric while being rolled in a place with a height difference, the original fabric is moved together with the original fabric rack for post processing. The original fabric taken out from the original fabric rack is attached to the multi-stand type interfolder.
In this way, the original fabric can be stored, and the movable original fabric rack is used so that it can be easily attached to the multi-stand type interfolder. It is now possible to easily set the fabric in a folder.

  As described above, according to the original fabric rack according to the present invention, since it is not necessary to hold the original fabric with a clamp, not only the deformation of the original fabric is minimized, but the central portion of the original fabric is supported by the support portion. Even when the hygroscopic original fabric is stored for a long time as it is supported, the original fabric is not deformed. This can reliably prevent the web from being unwound.

Along with this, it is possible to perform post-processing without any problems even if the raw material is coated with a chemical solution, and for example, it is possible to easily set the original material in the multi-stand type interfolder. Stable operation becomes possible. Accordingly, the product coated with the chemical solution can be produced without waste, and the production quantity is improved, so that the manufacturing cost can be reduced.
According to the present invention, the support portion and the introduction portion are formed continuously, and a frame portion serving as an outer frame is formed on the outer peripheral portion of the rack body, and one end of the introduction portion is connected to the frame portion, and The lower side of the support portion is connected to the rack body.
Therefore, according to this claim, not only the lower side of the support part is coupled to the rack body, but also one end of the introduction part formed continuously with the support part is connected to the frame part formed on the rack body. By doing so, the support portion to which the load is applied while supporting the center portion of the original fabric is reinforced, and the original fabric is stably stored in the original fabric rack.

The operation of the raw fabric rack according to claim 2 will be described below.
The original fabric rack according to the present invention has the same effect as that of the first invention. However, the present invention has a configuration in which a caster is provided in the lower portion of the rack body and can be moved by the caster.
In other words, according to this claim, since the original fabric rack can be moved by the casters below the rack body, the original fabric rack can be moved more freely, and the original fabric can be attached to the multi-stand type interfolder. It became possible to set even more easily.

  As described above, according to the original fabric rack of the present invention, even when the paper material absorbs moisture, the original fabric is not deformed. It comes to have an effect.

It is the schematic which shows the manufacturing equipment and manufacturing method of a primary web roll. It is the schematic which shows an example of a multi stand type inter folder, and has shown the state seen from the front. It is the schematic which shows an example of a multi stand type inter folder, and has shown the state seen from the side. It is the schematic which shows an example of a multi stand type inter folder, and has shown the state seen from the front. It is a longitudinal cross-sectional view of the folded tissue paper. (B) It is a partially broken figure which shows a mode that the tissue paper accommodated in the storage box is taken out. It is a principal part expansion perspective view of the site | part regarding a folding plate. It is a principal part expansion perspective view which shows how to fold a secondary continuous sheet (tissue paper). It is a principal part expansion perspective view which shows how to fold a secondary continuous sheet (tissue paper). It is a principal part expansion perspective view which shows how to fold a secondary continuous sheet (tissue paper). It is the schematic which shows the manufacturing equipment and manufacturing method of a secondary web roll. It is a principal part enlarged view of the periphery of the chemical | medical solution provision means shown in FIG. It is a figure which shows a mode that the contact embossing is provided to the lamination | stacking continuous sheet by the contact embossing means. 1 is a front view showing an embodiment of an original fabric rack according to the present invention (however, a rotating shaft and rails are omitted); FIG. 1 is a side view showing an embodiment of an original fabric rack according to the present invention (however, a rotating shaft and rails are omitted); FIG. It is a front view which shows one Embodiment of the original fabric rack which concerns on this invention, Comprising: It is explanatory drawing at the time of mounting a secondary original fabric roll. It is a front view which shows one Embodiment of the original fabric rack which concerns on this invention, Comprising: It is explanatory drawing at the time of attaching a secondary original fabric roll to a multi stand type interfolder. It is explanatory drawing explaining the state deform | transformed so that the upper-lower-end part of a secondary original fabric roll might be dented by clamp pressure.

Next, an embodiment of the present invention will be described. In the figure, the arrow HD indicates the horizontal direction, and the arrow LD indicates the vertical direction.
[Method for producing primary roll]
An example of the manufacturing method of a primary fabric roll is demonstrated referring FIG.
As shown in FIG. 1, the wet paper W that has passed through the wire part is placed on the bottom felt 111 and transferred, and thereafter, sandwiched between the top felt 110 and the bottom felt 111, between the top roll 112 and the bottom roll 113. Passed and squeezed. Thereafter, the wet paper web W squeezed is attached to the surface of the Yankee dryer 115 via the touch roll 116 while being placed on the top felt 110. Then, the wet paper W is dried by the Yankee dryer 115, peeled off by the doctor blade 117, and then wound up to be a primary raw roll JR.
When making this paper, for example, adding a suitable agent such as a dispersant, a dry paper strength enhancer, a wet paper strength enhancer, a softener, a release agent, a coating agent, a pH adjuster such as caustic soda, an antifoaming agent, and a dye. can do.
In the method of manufacturing the primary raw roll, the smoothing process can be performed by the calendar means 118 after being peeled off by the doctor blade 117.

[Production facilities for secondary rolls for tissue paper products]
As shown in FIG. 11, the production facility X1 (ply machine X1) for the secondary paper roll for tissue paper products according to the present invention includes at least two primary web rolls JR manufactured by the above-described manufacturing method or the like. The ply means 51 is configured so that the primary continuous sheet S1 fed from the primary raw roll JR can be laminated along the continuous direction to form a laminated continuous sheet S2.

  A pair of chemical solution applying means 53 for applying a chemical solution to the laminated continuous sheet S <b> 2 flowing from the ply means 51 is provided at the subsequent stage of the ply means 51. Slit means 55 is arranged, which is composed of a plurality of cutters, and slits the laminated continuous sheet S2 transferred from the chemical solution applying means 53 so as to have a product width of tissue paper products or a multiple of the width. Then, at the subsequent stage of the slit means 55, the laminated continuous sheet S2 slit by the slit means 55 is coaxially wound to form a plurality of secondary raw rolls R having a product width of tissue paper products or a multiple of the width. Winding means 56 is provided. Here, the winding means 56 has two winding drums 56A for guiding each slit continuous sheet S2 to the secondary raw roll R, and these two winding drums 56A are secondary. The laminated continuous sheet S2 is guided in contact with the outer peripheral surface of the raw roll R.

(Calendar means)
One or more calendering means 52 for calendering the laminated continuous sheet S2 may be provided in the production facility X1 for the secondary paper roll for tissue paper products.
The type of calendar in the calendar means 52 is not particularly limited, but is preferably a soft calendar or a chilled calendar for the purpose of improving the smoothness of the surface and adjusting the paper thickness. A soft calendar is a calendar using a roll coated with an elastic material such as urethane rubber, and a chilled calendar is a calendar made of a metal roll.
The number of calendar means 52 can be changed as appropriate. If there is a plurality of installations, it has the advantage that it can be sufficiently smoothed even if the processing speed is high.
When two or more calendar means 52 are installed, they can be arranged side by side in the horizontal direction, the up-down direction, or the diagonal direction, and these installation directions may be combined. When arranged side by side in the horizontal direction, the holding angle becomes smaller, so the processing speed can be increased, and when arranged side by side in the vertical direction, the installation space can be reduced. Note that the holding angle referred to here means an angle during which the sheet is in contact with the center of the roll axis (a part of a circular arc of a cross section perpendicular to the axis).
Paper making is also performed as control factors such as calendar type, nip line pressure, and number of nips in the calendar processing conditions, and these control factors are preferably changed as appropriate according to the required sheet quality, that is, the sheet thickness and surface properties.
Further, the installation position of the calendar means 52 is not particularly limited. However, the calendar means 52 is positioned after the ply means 51 and before the chemical solution applying means 53, or after the chemical solution applying means 53 and before the contact embossing means 54. Can do.

(Medication solution application means)
The chemical solution applying step for applying a chemical solution to the laminated continuous sheet S2 is performed by the chemical solution applying unit 53. Specifically, the chemical solution applying unit 53 includes two chemical solution applying units 53A and 53B in a doctor chamber format, respectively. The chemical solution is applied by these two chemical solution application portions 53A and 53B. And while conveying laminated | multilayer continuous sheet S2 at a speed | rate of 700 m / min or more, Preferably it is 900 m / min or more, the lotion agent used as a chemical | medical solution is 1.5g-5g in total of both surfaces by these chemical | medical solution provision means 53A, 53B. The coating amount is / m ² .
The coating amount was calculated from the difference between each sheet basis weight when the chemical solution after ply was not applied during operation and each sheet basis weight immediately after the corresponding application.
(Coating amount g / m ²⁾ = (basis weight g / m ² immediately after coating) - (the basis weight g / m ² in the case of not applying)
The coating amount of both surface layers or the total coating amount of both surfaces is the total coating amount per unit area of the plyed tissue paper sheet, and the coating amount of each sheet is added.

  That is, as shown in FIG. 11 and FIG. 12, the chemical solution application unit 53A in the form of one of the doctor chambers is arranged such that the doctor chamber 61A containing the chemical solution is opposed to the rotatable anilox roll 63A, The chemical solution is delivered from the doctor chamber 61A to the anilox roll 63A. Further, a printing plate roll 64A that is in contact with the anilox roll 63A and is also in contact with one surface of the laminated continuous sheet S2 is rotatably installed, and a chemical solution is delivered from the anilox roll 63A to the printing plate roll 64A. Further, while applying pressure to the laminated continuous sheet S2 with the impression cylinder 65A facing the printing plate roll 64A across the laminated continuous sheet S2, the chemical solution is applied from the printing plate roll 64A to the laminated continuous sheet S2. It has become.

  In the present embodiment, the chemical solution application portion 53A is positioned on the surface side of the laminated continuous sheet S2 that faces a roller 54A of a contact embossing means 54 described later and also faces the winding drum 56A. A supply pump (not shown) for applying a chemical solution to the doctor chamber 61A and a discharge supply pump (not shown) for returning the chemical solution from the doctor chamber 61A are installed in the doctor chamber 61A.

  On the other hand, as shown in FIG.11 and FIG.12, the chemical | medical solution provision part 53B made into the other doctor chamber form is arrange | positioned facing the rotatable anilox roll 63B in the doctor chamber 61B containing the chemical | medical solution, The chemical solution is delivered from the doctor chamber 61B to the anilox roll 63B. Further, a printing plate roll 64B that is in contact with the anilox roll 63B and is also in contact with the other surface of the laminated continuous sheet S2 is rotatably installed, and a chemical solution is delivered from the anilox roll 63B to the printing plate roll 64B. Yes. Further, while applying pressure to the laminated continuous sheet S2 with the impression cylinder 65B facing the printing plate roll 64B across the laminated continuous sheet S2, the chemical solution is applied from the printing plate roll 64B to the laminated continuous sheet S2. It has become.

  And in this Embodiment, this chemical | medical solution provision part 53B is located in the other surface side of the lamination | stacking continuous sheet S2 which is made not to oppose the roller 54A, and is also not made to oppose the above-mentioned winding drum 56A. A supply pump (not shown) for applying a chemical to the doctor chamber 61B and a discharge supply pump (not shown) for returning the chemical from the doctor chamber 61B are also installed in the doctor chamber 61B. .

  Accordingly, the chemical solution is applied to both surfaces of the laminated continuous sheet S2 from the chemical solution applying unit 53A and the chemical solution applying unit 53B. At this time, the coating amount on the surface side of the laminated continuous sheet S2 facing the roller 54A by the chemical solution applying unit 53A Is applied to the laminated continuous sheet S2 from both sides of the laminated continuous sheet S2, while reducing the amount of the liquid applied to the other surface side by the chemical liquid applying unit 53B.

However, the total coating amount on both sides is 1.5 to 5 g / m ² as described above, and the coating amount on the outer peripheral surface of the secondary web roll R which is a ply web roll is the secondary web roll R. The coating amount is less than the inner peripheral surface. Of the total application amount of the lotion agent on both sides of the paper, the application amount on the outer peripheral surface of the secondary raw roll R is preferably 20% or more and less than 50%, but the specific value is 2 Since the optimum conditions differ depending on the balance between the slip and quality of the next raw roll R, the thickness of the sheet, the permeability of the lotion agent, and the transferability, it varies within the above range.
Specifically, it is possible not only to change the coating amount on each side, but also to roughen the flexographic plate so that the number of lines of the flexographic plate is about 15 to 40 lines and the apex area ratio is about 20 to 40% so that the chemical solution does not scatter. By doing so, a dot pattern remains immediately after application, and an application part and an unapplication part can be instantaneously formed.

Therefore, according to the present embodiment, since the plate is made of resin using the flexo type and is elastic, it can be adjusted by the printing pressure even if there is some unevenness on the sanitary thin paper. Wrinkles are less likely to enter the laminated continuous sheet S2 than when applied by a roll. On the other hand, by using a flexo format that applies flexographic printing, the coating amount can be stabilized even at high processing speeds, and a wide range of chemical viscosity can be stably applied with one roll. It becomes like this. Specifically, the lotion agent used as a chemical solution is applied at an application amount of 1.5 g to 5 g / m ² while the laminated continuous sheet S2 is set to 700 m / min or more, preferably at a speed of 900 m / min or more. Even in such a case, the laminated continuous sheet S2 can be wound up without being meandered and applied uniformly.

In addition, the base paper used in this embodiment is 1 ply, has a basis weight of 10 to 25 g / m ² , and a crepe rate of 10 to 30%. It is a sanitary thin paper having a paper strength of 100 to 300 cN / 25 mm and a wet paper strength of 50 to 150 cN / 25 mm.

  One or a plurality of the chemical solution applying means 53 of the present embodiment can be installed. When a plurality of chemical solution applying means 53 are installed, they may be arranged in the horizontal direction, the vertical direction, or the oblique direction, and these installation directions including the horizontal direction. May be arranged in combination. Since the holding angle is reduced when they are arranged in parallel in the horizontal direction, the processing speed can be increased, and when they are arranged in the vertical direction, the installation space can be reduced.

  The means (calendar means 52 and contact embossing means 54 in the example of FIG. 11) arranged before and after the chemical solution applying means 53 are preferably arranged close to each other. By doing so, when manufacturing a tissue paper product to which no chemical solution is applied, the laminated continuous sheet S2 is directly transferred from the front stage to the rear stage of the chemical solution applying unit 53, and the laminated continuous sheet S2 is not passed through the chemical solution applying unit 53. Since it only needs to flow, it is possible to easily switch the presence or absence of chemical application. For example, in the manufacturing equipment X1 for the secondary paper roll for tissue paper products shown in FIG. 11, when manufacturing the tissue paper products to which no chemical solution is applied, as shown by the two-dot chain line in FIG. It is only necessary to transfer directly from the means 52 to the contact embossing means 54 and to flow the laminated continuous sheet S2 without passing through the chemical solution applying means 53.

In addition, the following requirements are conceivable as the requirements of the accompanying chemical solution applying means 53.
In the two-roll flexo chemical solution application means, it is necessary to install a filter device for paper powder and air contained in the chemical solution circulating in the coating device such as a chemical solution tank. In the case of using the chemical solution applying means 53, it is not necessary to remove paper dust or the like, so that the load on the filtration device may be reduced. Furthermore, it may be necessary to control the temperature of the chemical solution within the coating apparatus such as the doctor chambers 61A and 61B to stabilize the viscosity of the chemical solution. However, a heater can be installed in the intermediate tank and piping connected to the doctor chambers 61A and 61B. . On the other hand, it is considered necessary to control the coating amount by the moisture content in the width direction of the laminated continuous sheet S2 during operation. For example, the moisture amount and variation in the width direction can always be checked using an infrared inspection machine or the like. .

(Medical solution)
About the chemical | medical solution to apply | coat, the viscosity of 1-700 mPa * s is desirable at 40 degreeC from a viewpoint of performing high-speed processing. If it is less than 1 mPa · s, the chemical solution is likely to be scattered on rolls such as anilox roll, printing plate roll, and gravure roll, and conversely if it is more than 700 mPa · s, it is difficult to control the amount applied to each roll or thin paper. Ingredients contain 70-90% polyol, 1-15% moisture, and 0.01-22% functional drug.

Polyols include polyhydric alcohols such as glycerin, diglycerin, propylene glycol, 1,3-butylene glycol, polyethylene glycol, and derivatives thereof, and sugars such as sorbitol, glucose, xylitol, maltose, maltitol, mannitol, and trehalose.
Functional agents include softeners, surfactants, inorganic and organic fine particle powders, oily components, and the like. Softeners and surfactants have the effect of imparting flexibility to the tissue and smoothing the surface, and anionic surfactants, cationic surfactants and zwitterionic surfactants are applied. Inorganic and organic fine particle powders have a smooth surface. The oil component has a function of improving lubricity, and higher alcohols such as liquid paraffin, cetanol, stearyl alcohol, and oleyl alcohol can be used.
In addition, as a functional agent, one of a hydrophilic polymer gelling agent, collagen, hydrolyzed collagen, hydrolyzed keratin, hydrolyzed silk, hyaluronic acid or a salt thereof, ceramide, etc. A moisturizing agent such as any combination can be added.
Deodorants such as flavors, emollients such as various natural extracts, vitamins, emulsifiers that stabilize compounding ingredients, antifoaming agents, antifungal agents, organic acids, etc. An agent can be appropriately blended. Furthermore, you may contain the antioxidant of vitamin C and vitamin E.
Of the above components, it is preferable to use a polyhydric alcohol such as glycerin or propylene glycol as a main component in order to stabilize the viscosity and coating amount of the chemical solution.
The temperature at the time of chemical solution application is preferably 30 ° C to 60 ° C, preferably 35 ° C to 55 ° C.

(Contact embossing means)
The production facility X1 for the secondary paper roll for tissue paper products can be provided with contact embossing means 54 for imparting contact embossing to the laminated continuous sheet S2. And the joining process for forming the contact embossing CE which is a line-shaped junction part which prevents delamination with respect to lamination | stacking continuous sheet S2 is performed by this contact embossing means 54. FIG.

Here, as shown in FIG. 13, the contact embossing means 54 includes a pressure drum 54B, which is a receiving roll, and a metal, hard roller 54A having fine convex portions 54C on the surface, with a predetermined pressure. The outer peripheral surfaces are in contact with each other while being rotatably installed. Then, with respect to the portion corresponding to the center in the width direction of the tissue paper product in the laminated continuous sheet S2, the laminated continuous sheet S2 is conveyed while sandwiching the laminated continuous sheet S2 between the convex portion 54C and the impression cylinder 54B that exist on each of the left and right. Thus, line-shaped contact embossing CE for preventing delamination along the continuous direction of the laminated continuous sheet S2 is applied to the laminated continuous sheet S2.
In addition, the winding means 56 mentioned above winds up the lamination | stacking continuous sheet S2 by making the surface on the side facing the roller 54A which performs this contact embossing CE into an outer peripheral side.

Thus, by providing the contact embossing CE, delamination of the laminated continuous sheet S2 formed by laminating a plurality of primary continuous sheets S1 is prevented. In addition, it is preferable that the contact embossing CE is formed so as to be positioned on both sides in the width direction of the tissue paper product so that the end portion of the tissue paper product is hardly delaminated.
The location where the contact embossing means 54 is installed is not particularly limited, but it is a stage subsequent to the chemical solution applying means 53 and preceding the slit means 55, and a stage subsequent to the calendar means 52 and preceding the chemical solution applying means 53. Can be considered. That is, it suffices if it is located at a position after the calendar means 52 and before the slit means 55.

Further, in this joining process, in the present embodiment, a metal and hard roller 54A having a fine convex portion 54C on the surface is used as a roller, but a line-shaped joint that prevents delamination from the laminated continuous sheet S2. For example, instead of the roller 54A, a roller having a fine needle-like member on the surface can be used as the roller.
Furthermore, the means for joining is not limited to the above example, and the tip shape of the convex portion may be a point, square, rectangular, circular, elliptical shape, etc. A tip having a slender linear shape or a thin and slanting linear shape may be used as the roller.
On the other hand, the arrangement of the protrusions may be equally spaced, but may not be staggered or evenly spaced. In addition to arranging the protrusions in a row and providing contact embossing continuously, It is also conceivable to arrange the parts in two or more rows. Then, a plurality of groups in which convex portions are arranged so as to provide a plurality of rows of contact embossing closely may be arranged to provide a plurality of contact embossing groups. In addition, as a joining process, you may join by other means, such as an ultrasonic wave, besides joining by applying a pressure mechanically as mentioned above.

(Primary continuous sheet)
The raw material pulp of primary continuous sheet S1 is not specifically limited, A suitable raw material pulp can be selected and used according to the use of tissue paper products. As raw material pulp, for example, wood pulp, non-wood pulp, synthetic pulp, waste paper pulp, and the like, more specifically, groundwood pulp (GP), stone ground pulp (SGP), refiner ground pulp (RGP), pressure type Mechanical pulp (MP), chemical mechanical pulp (CGP), semi-chemical pulp (such as ground pulp (PGW), thermomechanical pulp (TMP), chemithermomechanical pulp (CTMP), bleach chemithermomechanical pulp (BCTMP) Chemical pulp (SCP), kraft pulp (KP) such as hardwood bleached kraft pulp (LBKP), softwood bleached kraft pulp (NBKP), soda pulp (AP), sulfite pulp (SP), dissolved pulp (DP), etc. CP), nylon, rayon, polyester, polyvinyl alcohol Synthetic pulp made from (PVA) etc., deinked pulp (DIP), waste paper pulp such as waist pulp (WP), waste pulp (TP), cotton, flax, hemp, jute, manila hemp, ramie etc. One kind or several kinds of auxiliary pulps such as rag pulp, straw pulp, esparto pulp, bagasse pulp, bamboo pulp and kenaf pulp, and auxiliary pulp such as bast pulp can be appropriately selected and used.

  In particular, the raw material pulp is preferably a blend of NBKP and LBKP. Waste paper pulp may be blended as appropriate, but it may be composed of only NBKP and LBKP in terms of texture and the like, and the blending ratio (JIS P 8120) in that case is NBKP: LBKP = 2: 8-8: 2 is good, and NBKP: LBKP = 4: 6-7: 3 is particularly desirable.

The primary continuous sheet S1 has a basis weight according to JIS P 8124 of 10 to 25 g / m ² , preferably 12 to 20 g / m ^2, and more preferably 13 to 16 g / m ² . When the basis weight is less than 10 g / m ² , it is preferable in terms of softness, but an appropriate strength cannot be ensured. On the other hand, when the basis weight exceeds 25 g / m ² , it becomes too hard and the touch is deteriorated.
Further, the paper thickness (measured with a Peacock manufactured by Ozaki Seisakusho) is 80 to 250 μm, preferably 100 to 200 μm, more preferably 130 to 180 μm with 2 plies.

  The primary continuous sheet S1 preferably has a crepe rate of 10 to 30%, more preferably 12 to 25%, and particularly preferably 13 to 20%. When the crepe rate is less than 10%, it becomes a tissue paper product that is easy to break during processing and has little stretch and is not stiff. When the crepe rate is 30% or more, it becomes difficult to control the tension of the sheet during processing, and it becomes a tissue paper product in which wrinkles are generated or the touch is poor.

  The primary continuous sheet S1 has a dry tensile strength (hereinafter also referred to as dry paper strength) specified in JIS P 8113 of 2 to 200 p-200 cN / 25 mm, preferably 250 to 600 cN / 25 mm, particularly preferably. The lateral direction is 100 to 300 cN / 25 mm, preferably 130 to 270 cN / 25 mm, particularly preferably 150 to 250 cN / 25 mm with 2 plies. If the dry tension of the base paper is too low, troubles such as tearing and elongation are likely to occur during production, and if it is too high, the touch becomes stiff when used.

  These paper strengths can be adjusted by a known method. For example, a paper strength agent is internally added (added to a stage before the dryer part, for example, pulp slurry), and pulp freeness is reduced (for example, about 30 to 40 ml is reduced). The method of increasing the NBKP compounding ratio (for example, 50% or more) can be appropriately combined.

  As the dry paper strength agent, starch, polyacrylamide, CMC (carboxymethyl cellulose) or a salt thereof such as sodium carboxymethyl cellulose, carboxymethyl cellulose calcium, carboxymethyl cellulose zinc and the like can be used. As the wet paper strength agent, polyamide polyamine epichlorohydrin resin, urea resin, acid colloid / melamine resin, thermal crosslinkability imparting PAM and the like can be used. When the wet paper strength agent is internally added, the addition amount can be about 5 to 20 kg / t in weight ratio to the pulp slurry. In addition, when the dry paper strength agent is internally added, the addition amount can be about 0.5 to 1.0 kg / t by weight ratio to the pulp slurry.

[Method for producing secondary roll for tissue paper product]
Next, an example of the manufacturing method of the secondary raw material roll for tissue paper products concerning this invention is demonstrated. The manufacturing method of the secondary raw material roll for tissue paper products which concerns on this form can be performed using the manufacturing equipment X1 of the secondary raw material roll for tissue paper products mentioned above, for example.
As shown in FIG. 11, in the manufacturing method of the secondary raw material roll for tissue paper products which concerns on this invention, the primary continuous sheet S1 paid out from the several primary raw material roll by the ply means 51 is followed along the continuous direction. The laminated continuous sheet S2 is laminated (laminating step), a chemical solution is applied to the laminated continuous sheet S2 by a pair of chemical solution applying means 53 (chemical solution applying step), and the laminated continuous sheet S2 is tissue paper product by the slit means 55. The product width of the paper product or a multiple of the product width is then slit (slit process), and then the laminated continuous sheet S2 slit in the slit process is coaxially wound to obtain the product width of the tissue paper product or a multiple of the product width A plurality of secondary web rolls R are formed by the winding means 56.

  In addition, in the manufacturing method of the secondary raw material roll for tissue paper products which concerns on this form, it is a back | latter stage of a lamination process and a chemical | medical solution application | coating process similarly to the manufacturing equipment X1 of the secondary raw material roll for tissue paper products mentioned above. A smoothing step of smoothing the laminated continuous sheet S2 with a pair of calendar means 52 can be provided in the preceding stage. In addition, a contact embossing step for performing line-shaped contact embossing for preventing delamination by the contact embossing means 54 on the laminated continuous sheet S2 can be provided after the chemical solution applying step and before the slitting step.

  In the manufacturing equipment or manufacturing method of the secondary paper roll for tissue paper products according to the present embodiment, the processing speed is 100 to 1100 m / min, preferably 300 to 1050 m / min, more preferably 450 to 1000 m. / Min. When it exceeds 1200 m / min, the frequency of the laminated continuous sheet S2 is increased, and in the chemical solution application process, uneven application of the chemical solution occurs due to the non-uniformity in the width direction of the lotion agent on the surface of the printing plate roll or anilox roll. There is a possibility that lotion will be scattered more.

In the manufacturing equipment or the manufacturing method of the secondary raw material roll for sanitary thin paper products according to the present embodiment, when the chemical solution is applied to both surfaces of the laminated continuous sheet S2, the total chemical solution application amount on both sides is 1.5 to 5. 0.0 g / m ² , preferably 2.0 to 4.5 g / m ² , more preferably 2.5 to 4.0 g / m ² . If it exceeds 5.0 g / m ² , the paper may be cut due to a decrease in paper strength or elongation, winding may occur when winding with a winding drum, or the quality may be too sticky. . If it is less than 1.5 g / m ² , the difference from the uncoated surface such as smoothness and moistness cannot be felt.

In addition, since there will be a difference between the front and back if there is a large difference in the coating amount on both coated surfaces, the coating amount of one is preferably 20% or more and less than 50% of the whole. Since both coated surfaces are in contact with each other during the time (average between 8 hours and 24 hours) after being stored in the ply material after coating, the amount of both chemicals is gradually equalized. The front / back difference is improved.
When the chemical solution is applied only to one side of the laminated continuous sheet, the chemical solution is preferably applied to S1 because it is difficult to cause winding deviation. The coating amount is 1.5 to 5.0 g / m ² , preferably 2.0 to 4.5 g / m ² , more preferably 2.5 to 4.0 g / m ² .

[Multi-stand type inter folder]
A large number of secondary raw rolls R manufactured by the manufacturing equipment and manufacturing method for secondary paper rolls for tissue paper products described above are set in a multi-stand type interfolder, and the secondary raw rolls R are set to the secondary raw rolls R. A tissue paper bundle is manufactured by unfolding and folding the next continuous sheet. Hereinafter, an example of the multi-stand type interfolder will be described.

  2 and 3 show an example of a multi-stand type interfolder. Reference numeral 2 in the figure denotes secondary raw rolls R, R... Set on a secondary raw roll support portion (not shown) of the multi-stand type interfolder 1. The secondary raw rolls R, R... Are set side by side in a direction (the horizontal direction in FIG. 2 and the front-to-back direction in FIG. 3) perpendicular to the illustrated plane. Each secondary raw roll R has slits in the width of tissue paper product in the above-described manufacturing equipment and manufacturing method of the secondary raw roll for tissue paper products. It is wound and set in double width.

  The continuous belt-like secondary continuous sheets 3 </ b> A and 3 </ b> B unwound from the secondary raw roll R are guided by guide means such as guide rollers G <b> 1 and G <b> 1 and sent to the folding mechanism unit 20. Moreover, the folding mechanism part 20 is provided with the folding plate group 21 in which the required number of folding plates P, P ... are arranged in parallel as shown in FIG. For each folded plate P, guide rollers G2, G2 and guide round bar members G3, G3 for guiding a pair of continuous secondary continuous sheets 3A or 3B are respectively provided at appropriate positions. Further, below the folded plates P, P..., A conveyor 22 is provided that receives and conveys the laminated band 30 that is stacked while being folded.

  A folding mechanism using this type of folded plates P, P... Is a known mechanism, for example, from US Pat. As shown in FIG. 5, this type of folding mechanism folds each continuous secondary continuous sheet 3A, 3B... In the Z-shape and is adjacent to the adjacent secondary continuous sheet 3A, 3B. Stack the ends together.

  FIGS. 7 to 10 show in detail the portions of the folding mechanism 20 that are particularly related to the folded plate P. FIG. In the folding mechanism unit 20, a pair of continuous secondary continuous sheets 3A and 3B are guided for each folded plate P. At this time, the continuous secondary continuous sheets 3A and 3B are guided by the guide round bar members G3 and G3 while being shifted in position so that the side end portions do not overlap each other.

  A continuous secondary continuous sheet that is overlapped on the lower side when guided by the folded plate P is defined as a first continuous secondary continuous sheet 3A, and a continuous secondary continuous sheet that is overlapped on the upper side is a second continuous sheet. As shown in FIGS. 5 and 8, these continuous secondary sheets 3A and 3B are second continuous secondary sheets of the first continuous secondary continuous sheet 3A. The side end e1 that does not overlap the sheet 3B is folded back to the upper side of the second continuous secondary continuous sheet 3B by the side plate P1 of the folded plate P, and as shown in FIGS. The side end e2 of the continuous secondary continuous sheet 3B that does not overlap with the first continuous secondary continuous sheet 3A is folded downward so as to be drawn under the folded plate P from the slit P2 of the folded plate P. . At this time, as shown in FIGS. 5 and 10, the side end portion e3 (e1) of the continuous secondary continuous sheet 3A stacked while being folded in the upstream folded plate P is second from the slit P2 of the folded plate P. Are guided between the folded portions of the continuous secondary sheet 3B. In this way, each continuous secondary continuous sheet 3A, 3B... Is folded into a Z-shape and the side edges of adjacent continuous secondary continuous sheets 3A and 3B are crossed together. In some cases, when the top tissue paper is pulled out, the side edge of the next tissue paper is pulled out.

  As shown in FIG. 2, the laminated band 30 obtained by the multi-stand type interfolder 1 as described above is cut (cut) at a predetermined interval in the flow direction FL by the subsequent cutting means 41, and the tissue is cut. The tissue paper bundle 30a is stored in the storage box B in the subsequent equipment as shown in FIG. 6A. In the multi-stand type interfolder 1 as described above, the paper direction of the laminated strip 30 is the vertical direction (MD direction) along the flow direction FL, and the horizontal direction along the direction orthogonal to the flow direction. Direction (CD direction). For this reason, the direction of the paper of the tissue paper constituting the tissue paper bundle 30a obtained by cutting the laminated band 30 into a predetermined length is the extension of the folded portion of the tissue paper as shown in FIG. The vertical direction (MD direction) is along the existing direction, and the horizontal direction (CD direction) is along the direction orthogonal to the extending direction of the folded portion of the tissue paper.

FIG. 6B shows an example of a product in which the tissue paper bundle 30a is stored in the storage box B. A perforation M is provided on the upper surface of the storage box B, and a part of the upper surface of the storage box B is broken by the perforation M so that the upper surface of the storage box B is opened. The opening is covered with a film F having a slit at the center, and the tissue paper T can be taken out through the slit provided in the film F.
By the way, as described above, the direction of the paper of the tissue paper constituting the tissue paper bundle 30a is the horizontal direction (CD direction) along the direction orthogonal to the extending direction of the folded portion of the tissue paper. As shown in (b), when pulling out the tissue paper T from the storage box B, the pulling direction is along the lateral direction (CD direction) of the tissue paper T.

Next, an embodiment of the original fabric rack according to the present invention is shown in FIGS. 14 to 17, and the embodiment will be described in detail with reference to these drawings.
The laminated continuous sheet S2 coated with the chemical solution as described above is wound around the winding core RM to form the secondary raw roll R. Then, as described above, the secondary material roll R is folded by a multi-stand type interfolder after being held for a predetermined time, and becomes a tissue paper containing a large number of products in the storage box B.

At this time, first, as shown in FIGS. 14 and 15, a metal shaft member 72 in which a narrow diameter portion 72 </ b> A having a small diameter is formed on both ends in the winding core RM of the secondary raw roll R. Will be inserted. As a result, the small diameter portions 72A protrude from both ends of the winding core RM.
On the other hand, in the original fabric rack 70 according to the present embodiment, a caster 76 is provided at the lower portion, and the rack body 74 that can be moved by the caster 76 that is a freely movable wheel is used for the original fabric. The main body portion of the rack 70 is included.

  At the four corners of the outer peripheral portion of the rack body 74, vertical frame portions 78 as outer frames are provided so as to extend vertically from the lower portion. A plurality of horizontal frame portions 80 extending in the horizontal direction are arranged on the upper end portions of the vertical frame portions 78 so as to connect the vertical frame portions 78. That is, a frame on the rack body 74 is formed by the vertical frame portion 78 and the vertical frame portion 78.

  In addition, one end portion of a plate-like introduction portion 82 that serves as a guide for the secondary raw roll R is connected to the middle portion of the vertical frame portion 78 by welding or the like, and extends obliquely upward. The other end portion of the introduction portion 82 is connected to one end portion of a support portion 84 that is formed in a plate shape and extends horizontally. However, a concave portion 84A formed in a V shape is provided at the center of the support portion 84 so as to open upward at an angle of 90 °. Furthermore, the other end portion of the support portion 84 is connected to a connecting portion 86 that extends obliquely downward and is connected to the vertical frame portion 78. And the cushion material 90 which is a rubber-made shock absorbing material is arrange | positioned around the part in which the other end part of the connection part 86 is located. Thus, even when the outer periphery of the secondary raw roll R hits this portion, it is difficult to deform.

  On the other hand, the lower portion of the support portion 84 is connected to the rack body 74 via a support member 88 extending in the vertical direction, and the support portion 84 has sufficient strength. Further, as shown in FIG. 15, there is a space in the original fabric rack 70 for the three secondary original rolls R to enter, and between the secondary original rolls R, there is a space. In the same manner as described above, the introduction portion 82, the support portion 84, the connecting portion 86, the support member 88, and the like are provided, and the vertical portion (not shown) corresponding to one end portion of the introducing portion 82 and the other end portion of the connecting portion 86 is provided. A frame portion 78 is disposed.

  Accordingly, the secondary raw material on which the laminated continuous sheet S <b> 2 is wound is supported by supporting the narrow diameter portions 72 </ b> A protruding from both ends of the winding core RM by the support portions 84 positioned on both sides of the secondary raw roll R. The center portion of the anti-roll R is supported by the support portion 84. When the thin portion 72A is fitted into the concave portion 84A when the thin portion 72A at both ends of the winding core RM is supported by the support portion 84, vibration or the like occurs along with the movement of the original fabric rack 70. Even so, the position of the secondary web roll R does not shift. Similarly, a total of three secondary web rolls R can be mounted on the web rack 70.

  Also, as shown in FIGS. 16 and 17, a rail 94 having elasticity is connected to one end portion of the introducing portion 82 with a rotating shaft 92 interposed therebetween. The rail 94 is rotated by the rotating shaft 92 so that the inclination angle A can be changed in a range from 0 ° to 180 °, and the length of the rail 94 is 1 m at maximum from the rotating shaft 92 as a base point. It will extend to. Further, the rail 94 can be stored in the original fabric rack 70 and can be fixed so as not to interfere with the transportation.

  Accordingly, as shown in FIG. 16, when the secondary raw roll R is mounted on the original rack 70, the inertia of the secondary raw roll R that rolls on the slope S provided in accordance with the presence of the height difference. Thus, the secondary raw fabric roll R indicated by the two-dot chain line is rolled on the rail 94 so as to be placed on the support portion 84 of the original fabric rack 70 in such a manner that the narrow-diameter portion 72A is fitted at the position of the concave portion 84A.

  On the other hand, when taking out the secondary original roll R from the original rack 70, the rail 94 is extended and connected to a motor-type mounting device 96 of a multi-stand type interfolder. In this state, the secondary material roll R is rolled on the rail 94 up to the mounting device 96 and further mounted on an unreel stand (not shown) of the multi-stand type interfolder by the mounting device 96 as indicated by a two-dot chain line.

Next, the operation of the original fabric rack 70 according to the present embodiment will be described.
According to the original fabric rack 70 of the present embodiment, the support portion 84 supports the central portion of the secondary original fabric roll R around which the laminated continuous sheet S <b> 2 that is a paper material is wound, and the secondary portion is supported on the support portion 84. The introduction part 82 used as the guide of the raw fabric roll R is connected. The rack body 74 is not only movably formed by a caster 76 provided in the lower part of the rack body 74, but also includes a support portion 84 and an introduction portion 82.

  Therefore, after being rolled into a secondary roll roll R after slitting and mounted on the roll rack 70 while being rolled at a place with a height difference as shown in FIG. The secondary web roll R is moved by a caster 76. Then, the secondary original roll R taken out from the original rack 70 is attached to the multi-stand type interfolder for post-processing as shown in FIG.

  In this way, the secondary web roll R can be stored, and the movable web rack 70 that is movable so as to be easily attached to the multi-stand type interfolder is employed, so that the secondary web roll R is held by a clamp. In addition to the necessity, the secondary roll roll R can be easily set in the multi-stand type interfolder.

  As described above, according to the original fabric rack 70 according to the present embodiment, since it is not necessary to hold the secondary original roll R with the clamp, not only the deformation of the secondary original roll R is minimized. Even when the secondary raw roll R that has absorbed moisture is stored for a long period of time as the center of the secondary raw roll R is supported by the support portion 84, the secondary raw roll R It will not be deformed. By this, the winding slip of the secondary original fabric roll R can be prevented reliably.

  Along with this, it is possible to perform post-processing without any problems even if the secondary film roll R is coated with a chemical solution, and the secondary film roll R can be easily set in a multi-stand type interfolder. In this multi-stand type interfolder, stable operation becomes possible. Therefore, tissue paper, which is a product coated with a chemical solution, can be produced without waste, and as a result of an increase in production quantity, manufacturing costs can be reduced.

  On the other hand, in the present embodiment, the support portion 84 and the introduction portion 82 are continuously formed, and the vertical frame portion 78 that is an outer frame is formed on the outer peripheral portion of the rack body 74. One end of the introduction part 82 is connected to the part 78, and the lower side of the support part 84 is connected to the rack body 74.

  That is, according to the present embodiment, not only the lower side of the support portion 84 is connected to the rack body 74 but also the vertical frame portion 78 formed on the rack body 74 is formed continuously with the support portion 84. By connecting one end of the introduction portion 82, the support portion 84 that supports the central portion of the secondary raw roll R and adds a load is reinforced, and the secondary portion is stably attached to the original fabric rack 70. The original fabric roll R is stored.

  In the above embodiment, the rack body is formed so as to be movable by casters that can move in the direction of travel. It is possible to arrange four, six, etc. of these casters. Also good. Further, the rack body may be movable by other means. That is, for example, a motor or the like may be mounted so as to be able to run on its own, or a simple roller may be arranged at the lower portion to be movable.

  On the other hand, in the above embodiment, the main component of the raw fabric rack is formed of a metal material such as steel, but if it has sufficient strength, it is formed of a synthetic resin material such as engineering plastic or other materials. You may do it.

  The present invention can be applied to conveyance of a secondary roll for tissue paper products to a multi-stand type interfolder.

70 Raw fabric rack
74 Rack body 76 Casters 78 Vertical frame portion 84 Support portion 82 Introduction portion R Secondary material roll

Claims (2)

A support part for supporting the center part of the raw material on which the paper material is wound;
An introduction part connected to the support part and used as a guide for the original fabric;
A rack body provided with a support part and an introduction part and movably formed ,
A support portion and an introduction portion are formed continuously, and a frame portion that is an outer frame is formed on the outer peripheral portion of the rack body,
An original fabric rack in which one end of the introduction portion is connected to the frame portion and the lower side of the support portion is coupled to the rack body .   The original fabric rack according to claim 1, wherein a caster is provided at a lower portion of the rack body and is movable by the caster.

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