CN102711571A

CN102711571A - Method of manufacturing secondary whole roll for tissue paper product

Info

Publication number: CN102711571A
Application number: CN2010800596166A
Authority: CN
Inventors: 小沼敦嗣
Original assignee: Daio Paper Corp
Current assignee: Daio Paper Corp
Priority date: 2009-12-28
Filing date: 2010-08-02
Publication date: 2012-10-03
Anticipated expiration: 2030-08-02
Also published as: JP6857260B2; JP6646702B2; JP2017035498A; JP5951183B2; JP2011152426A; KR101712690B1; JP2018126541A; JP2011152409A; JP2020072961A; JP2016039992A; JP4695721B1; JP6097439B2; JP2017086959A; WO2011080941A1; JP6314260B2; JP6082449B2; CN102711571B; JP4695728B1; JPWO2011080941A1; KR20120098943A

Abstract

Disclosed is a tissue paper manufactured so as to be bulky without using bulking agents and the like and without increasing the number of manufacturing processes. Also disclosed is a method of manufacturing secondary whole rolls for a tissue paper product, which comprises (1) a laminating step of forming a laminated continuous sheet by laminating primary whole rolls fed from a plurality of primary whole rolls in a direction along which the rolls continue; (2) a chemical-solution applying step of applying chemical solution only to one of the top layers of the laminated continuous sheet or applying more chemical solution to one of the top layers than to the other top layer; (3) a joining step of forming linear joint portions that prevent layer separation on the laminated continuous sheet by nipping the laminated continuous sheet between a receiving roller and a driven roller. (4) a slitting step of slitting the laminated continuous sheet into sheets having a width or a several-fold width of a tissue paper product; and (5) a coiling step of forming a plurality of secondary whole rolls having the width or the several-fold width of the tissue paper product by coaxially coiling the slit laminated continuous sheets.

Description

The manufacturing approach of the secondary paper roll that thin-paged paper products is used

Technical field

The present invention relates to the manufacturing approach of the secondary paper roll that thin-paged paper products uses.

Background technology

In recent years, obtain the more use through containing the senior tissue paper that the lotion soup makes the skin soft-touch more.Method as soup being coated on these scraps of paper (body paper) can adopt dipping; Spraying; Coating based on mode of printings such as gentle version, intaglio plates.But, for tissue paper, require to improve loft in order to improve its usability, still, the tissue paper that is coated with the lotion soup can make the fold that forms when copying paper stretch because of suction, the moisture absorption of paper easily, therefore causes the decline of its loft easily.In the past, through interiorly add the leavening agent (patent documentation 2) that constitutes by cationic surface active agent, perhaps giving the such method of embossing (patent documentation 4) carries out fluffy processing to inhale water-retaining property starch (patent documentation 3) medicament of etc.ing.But these methods are difficult to bring into play effect in the low paper of the basic weight as tissue paper, also have the problem such as cost increase, the increase of worker ordinal number of material and facility expense etc. in addition.

The prior art document

Patent documentation

Patent documentation 1: japanese kokai publication hei 4-9121 communique

Patent documentation 2: TOHKEMY 2006-161192 communique

Patent documentation 3: TOHKEMY 2008-190050 communique

Patent documentation 4: TOHKEMY 2009-34278 communique

Summary of the invention

The problem that invention will solve

The present invention provides a kind of tissue paper that contains the lotion soup, and it does not use leavening agent etc. during fabrication and does not increase the worker ordinal number, and this tissue paper is fluffy and have soft usability and a higher wiping properties.In addition, shortened the manufacturing lead time of the tissue paper that contains the lotion soup in the manufacturing approach of the present invention.

The means that are used to deal with problems

The present invention who has solved this problem is described below.

[scheme 1 described invention]

The manufacturing approach of the secondary paper roll that a kind of thin-paged paper products is used; It is to make the manufacturing approach of the thin-paged paper products of the binary paper roll more than 2 that thin-paged paper products uses with the secondary paper roll continuously by paper roll; It is characterized in that this manufacturing approach has following operation:

Lamination procedure will be carried out lamination along its continuous direction by the paper roll that a paper roll more than 2 is extracted out, thereby obtained the continuous scraps of paper of lamination;

The soup painting process is only coated soup on the top layer side of the continuous scraps of paper of said lamination, or is coated with soup according to the coating weight of a top layer side more than the mode of the coating weight of another top layer side;

Engage operation, through the continuous scraps of paper of lamination are clamped between backing roll and the roller bearing, thereby on the continuous scraps of paper of lamination, form the bonding part of the wire that prevents splitting;

The rip cutting operation is that the goods width of thin-paged paper products or the mode of its several times width are carried out rip cutting according to making the continuous scraps of paper of lamination; With

The coiling operation with the coaxial coiling of the continuous scraps of paper of each lamination after the rip cutting, thereby forms the goods width of thin-paged paper products or the secondary paper roll more than 2 of several times width.

(action effect)

The body paper that constitutes tissue paper is gone up elongation in MD direction (length direction) especially easily because of suction.This percentage elongation is different because of the amount of moisture of the crepe ratio of body paper and suction.For the present invention; Behind the continuous scraps of paper lamination that constitutes by the tissue paper body paper more than 2 layers; Soup is only coated a side of 2 layers of continuous scraps of paper in top layer that form the top layer, perhaps made and coat 2 layers of amount of liquid medicine on the continuous scraps of paper in top layer and there are differences; Ground, soup coating rear section forms the bonding part, thereby the lamination layer is fixed.The result has had following effect: therefore the continuous scraps of paper that have been coated with more soup produce fold than another continuous scraps of paper elongation on the surface, tissue paper becomes fluffy because of this fold.Utilize this fluffy processing,, also can obtain and not be coated with the equal paper web loft of situation that soup is just processed even be coated with above-mentioned soup.

The continuous scraps of paper of lamination for after the soup coating behind joint, carry out rip cutting to it, reel simultaneously.Through being wound into the roller shape, be coated with continuous scraps of paper surface, the top layer of more soup and contacted with continuous scraps of paper surface, another top layer, the soaking into of generation soup (modified, seasoning).Modifiedly has a following effect through this.(a) when lotion soaks in ply of paper, the lotion on the surface of having carried out coating is shifted at leisure to opposite.(b) play that wadding has in case the character that is difficult to recover after being stretched because of moisture absorption, suction, crepe ratio is high more, the allowance that promptly stretches is big more, and this tendency is strong more.Therefore, more stretching and the fold of the scraps of paper after processing goods of water absorption, hygroscopic capacity is bigger, and it is bigger that ripple also becomes.

For the continuous scraps of paper of the lamination that is coated with soup, for the superficiality that makes surface and the outside of 2 scraps of paper in the back side, the face that promptly contact with skin much at one, coat the soup of the soup use same composition at surperficial and the back side.

[scheme 2 described inventions]

The manufacturing approach of the secondary paper roll of using like scheme 1 described thin-paged paper products wherein, adds up to 1.5g/m according to the coating weight on two top layers ²～5.0g/m ²Mode be coated with soup.

(action effect)

Through the soup that makes coating is the amount that is limited, and can when suppressing basic weight than the lowland, fluffy thin-paged paper products be provided.

[scheme 3 described inventions]

The manufacturing approach of the secondary paper roll of using like scheme 1 described thin-paged paper products, wherein, the moisture rate of said soup is 1%～15%, viscosity is 1mPas～700mPas (40 ℃).

(action effect)

If the moisture rate of soup is too high, then wetting-out rate is fast, is difficult to make the elongation of two pieces of paper sheet there are differences.On the other hand, if the moisture rate of soup is low excessively, then, be difficult to make the elongation of two pieces of paper sheet there are differences because the wrinkling stretching due to the coating is few.In addition, if the ratio of viscosities of soup regulation is low, then soup can soak into the layer to other immediately, not only is difficult to make the percentage elongation of each continuous scraps of paper in top layer to produce difference, and soup is dispersed on rollers such as anilox roll, forme roller, gravure roll easily.On the other hand, if the ratio of viscosities of soup regulation is high, then be difficult on width, be coated with equably soup.So, be moisture rate, the viscosity of regulation through making soup, can be manufactured on the secondary paper roll that the surface generates has fold more reliably.

[scheme 4 described inventions]

The manufacturing approach of the secondary paper roll of using like scheme 1 described thin-paged paper products wherein, after 0.3 second～2.5 seconds, forms said bonding part from last soup coating on the continuous scraps of paper of lamination.

(action effect)

In the present invention, preferably carry out the integrated of lamination after 0.3 second～2.5 seconds from last soup coating.If less than 0.3 second, then soup is not fully absorbed by body paper, so soup can be attached on paper bowl or the embossing beaming roller and disconnected paper or spot take place attached to the situation on said each roller.If surpass 2.5 seconds, the continuous paper sector-meeting that then is coated with soup is elongated to maximum, thereby in the postorder operation, even be fixed in other the continuous scraps of paper, also is difficult to produce fold, is difficult to obtain desired effect.In addition,, then do not had correspondingly to pull the elongation that changes if the scraps of paper are elongated to maximum continuously, and, because of making hot strength, moisture absorption, suction descend, therefore also there are break easily paper, the such problem of operation property decline.

[scheme 5 described inventions]

The manufacturing approach of the secondary paper roll of using like scheme 1 described thin-paged paper products, wherein, the crepe ratio on a said top layer is higher by 2%～10% than the crepe ratio on said another top layer.

(action effect)

Crepe ratio through making 2 layers of continuous scraps of paper that is coated with more soup in the continuous scraps of paper in top layer is higher than the opposing party, the extensibility in the time of can further increasing the coating of soup between the continuous scraps of paper in top layer poor, thus give fold more reliably.

[scheme 6 described inventions]

The manufacturing approach of the secondary paper roll of using like scheme 1 described thin-paged paper products, wherein, the coating of said soup utilizes mode of printing to carry out respectively, and coating speed is 300m/ minute～1200m/ minute.

(action effect)

The present invention carry out laminated integratedization immediately, thereby can under the situation that does not significantly reduce paper power, be implemented a series of operation through when soup is coated the continuous scraps of paper of lamination after the soup coating.Therefore, can be than carried out the soup coating more at high speed in the past.Through utilizing mode of printings such as gentle version, intaglio plate to be coated with soup, even under the situation of high speed, the monoplanar surface of also can be equably soup being coated the continuous scraps of paper of lamination on the whole.Particularly, the soup painting process among the present invention is preferably implemented in range upon range of machine.

[scheme 7 described inventions]

The manufacturing approach of the secondary paper roll of using like scheme 1 described thin-paged paper products wherein, is each layer 10g/m through soup painting process, the basic weight that engages the continuous scraps of paper of lamination of operation ²～25g/m ², paper is thick in the two-layer 110 μ m～180 μ m that count.

(action effect)

In the present invention, it is thick to improve paper more than basic weight, and the thin-paged paper products of soft texture can be provided thus.

[scheme 8 described inventions]

A kind of thin-paged paper products is characterized in that, this thin-paged paper products forms through scheme 1～7 each described manufacturing approach manufacturing.

The invention effect

Through making the one deck at least in the tissue paper more than 2 layers produce fold, thereby can under the situation that interpolation that does not rely on leavening agent and embossing are processed, obtain tissue paper through fluffy processing.In addition,, can make interlayer contain air, therefore have soft texture through applying fold.Particularly for the tissue paper that has fold on the top layer, can also obtain following effect: wiping properties is because of fold improves, diffusivity during wiping improves because of surface area enlarges.

In addition, soup painting process and range upon range of operation among the present invention are one, and with compared in the past, can implement at faster speed.

Description of drawings

Fig. 1 is the figure of device summary of the range upon range of operation of expression tissue paper of the present invention.

Fig. 2 is the flow chart of summary of the range upon range of operation of expression tissue paper of the present invention.

Fig. 3 is the sketch map of the structure of expression tissue paper of the present invention.(A) being the preceding MD direction sectional view of soup coating, (B) is the vertical view before soup soaks into operation, (C) is I-I direction of arrow view

Fig. 4 is the sketch map of surface relief structure of the continuous scraps of paper of expression tissue paper of the present invention.(A) before the coating of expression soup, (B) after the coating of expression soup.

Fig. 5 is that the expression soup soaks into the sketch map of operation.

Fig. 6 is the sketch map of an example of expression multistation formula interfolded machine, wherein, shows the state from top view.

Fig. 7 is the sketch map of an example of expression multistation formula interfolded machine, wherein, shows the state of observing from the side.

Fig. 8 is the sketch map of an example of expression multistation formula interfolded machine, wherein, shows the state from top view.

Fig. 9 is the longitudinal section of the tissue paper after folding.

Figure 10 wants portion's amplification stereogram about the position of flap.

Figure 11 be the expression continuous scraps of paper of secondary (tissue paper) method for folding want portion's amplification stereogram.

Figure 12 be the expression continuous scraps of paper of secondary (tissue paper) method for folding want portion's amplification stereogram.

Figure 13 be the expression continuous scraps of paper of secondary (tissue paper) method for folding want portion's amplification stereogram.

Figure 14 representes to be accommodated in the fragmentary cross-sectional view of the state of the tissue paper extraction in (b) containing box.

Figure 15 is the figure of device summary of range upon range of operation of the tissue paper of expression alternate manner of the present invention.

Figure 16 is the flow chart of summary of range upon range of operation of the tissue paper of expression alternate manner of the present invention.

The specific embodiment

In tissue paper of the present invention, with the paper roll coiling direction as MD direction or longitudinal direction, with the vertical direction of coiling direction as CD direction or transverse direction.

Below, Yi Bian with reference to accompanying drawing, Yi Bian embodiment of the present invention is described in detail.The manufacturing approach and the equipment that below will contain the tissue paper of soup come the manufacturing approach and the manufacturing equipment thereof of household tissue paper of the present invention are described as an example.Need to prove that the present invention is not limited to tissue paper, also go for toilet paper, paper for kitchen etc.

Fig. 1 representes the summary of device of the range upon range of operation of tissue paper of the present invention.In addition, Fig. 2 representes the flow process of manufacturing process.Need to prove that the operation of Fig. 1 is preferably utilized as the range upon range of machine of integrated apparatus and implemented.

When the manufacturing of box-packed type tissue paper etc., in copying paper apparatus, use known paper machine by the paper pulp fiber body paper of manufacturing paper with pulp.As raw material paper pulp, can enumerate wood fragments paper pulp (GP), pressure ground wood pulp (PGW), preheating chip groundwood mechanical pulps such as (TMP); Semichemical wood pulp (SCP), coniferous tree high yield be bleached sulphate wood pulp (HNKP), coniferous tree bleached sulphate wood pulp (NBKP), broad leaf tree not bleached sulphate wood pulp (LUKP), bleached hardwood sulfate wood pulp chemical pulps such as (LBKP) of bleached sulphate wood pulp (HNKP), broad leaf tree not; De inked pulp (DIP), secondary stock old paper stocks such as (WP).Raw material paper pulp can be selected to use a kind of, also can select to use two or more.Be preferably not contain the chemical pulp of filler and impurity suitably.Be advisable preferred especially NBKP:LBKP=30:70～60:40 with NBKP:LBKP=20:80～80:20.In addition, in raw material paper pulp, can contain woody, draft classes such as straw pulp, bamboo pulp, mestha paper pulp.

On the other hand, in copying paper material, the fibrous raw material as beyond above-mentioned can contain PETG, polybutylene terephthalate (PBT) and their polyester fibers such as copolymer; Polyolefin series fibers such as polyethylene, polypropylene, polystyrene; Acrylic fiber such as polyacrylonitrile, modified polyacrylonitrile; Polyamide-based fibers such as nylon 6, nylon 66, nylon 12; Synthetic fibers such as vinal, Saran, polyvinyl chloride fibre, polyurethane fiber; Semisynthetic fibres such as tricel, diacetate esters fiber; Regenerated cellulose series fibers such as viscose rayon yarn, copper rayon, rich and powerful artificial silk, disappearing fibre; The material that obtains collagen, alginic acid, chitin etc. are modulated into solution carries out spinning, chemical fibres such as the regenerated fiber that obtains therefrom.The polymer that constitutes chemical fibre can be forms such as single polymers, polymer-modified, mixture, copolymer.

Copy in paper machine that paper forms body paper as the scraps of paper continuously, impose wrinklingly, and implement press polish and handle, then with its coiling, obtain a paper roll 11,12 (generally being called big paper roll).The basic weight of the continuous scraps of

paper

31,32 that preferably is wound into one deck of a paper roll is 10g/m ²～25g/m ², be preferably 12g/m ²～20g/m ²Under the state of 2 plies, the paper of the scraps of

paper

31,32 is thick continuously is 110 μ m～250 μ m, be preferably 130 μ m～200 μ m.

The crepe ratio that preferably makes the continuous scraps of

paper

31,32 is 10%～30%, is 12%～25% more suitably.Can make continuous paper sheet 31 identical, but the crepe ratio of a preferred side's the continuous scraps of paper 31 is than the opposing party's the continuous scraps of paper 32 high by 2%～10% (more suitable is 2%～5%) with the crepe ratio of the continuous scraps of paper 32.

Utilize 13 pairs of continuous scraps of

paper

31,32 of lamination roller to carry out lamination, thereby form bilayer, utilize range upon range of calender 14 to carry out press polish as required and handle, and deliver to the soup painting process.Method for the soup coating; Can use based on any of known coating processes such as dipping, spraying, the coating of gentle version, intaglio plate coating; But carry out mode of printings such as the intaglio plate coating of soup coating, the coating of gentle version equably on the whole at coated face if use; Particularly use the gentle version coating machine possess scraper chamber 15, then can be with stable coating weight supply of chemical, therefore more preferred.In the range upon range of operation of Fig. 1, possess 2 gentle

version coating machines

16,17, soup is coated on each face of double-deck continuous scraps of paper.

The soup coating weight of two gentle version coating machines there are differences, perhaps only use a gentle version coating machine to be coated with soup.Make under the situation that the crepe ratio of 2 layers of continuous scraps of paper there are differences, preferably high to the crepe ratio continuous scraps of paper (in the accompanying drawing example, being the continuous scraps of paper 31) are coated with more soup.In the accompanying drawing example, make the coating apparatus of directly soup being coated on the continuous scraps of paper 31 16 in 2 coating apparatus be coated with more soup than another coating apparatus 17.The ratio of the soup coating weight on two sides is 100:0～60:40, be preferably 75:25～60:40.Make the amount of liquid medicine on the two sides of coating 2 layers add up to 1.5g/m ²～5.0g/m ², be preferably 2.0g/m ²～4.0g/m ²

For the soup of coating,, make viscosity be 1mPaS～700mPaS at 40 ℃ from carrying out the viewpoint of High-speed machining.50mPas～400mPas (40 ℃) more preferably.If less than 1mPas, then soup disperses on rollers such as anilox roll, forme roller, gravure roll easily; On the contrary, if greater than 700mPas, then be difficult to control the coating weight of soup on each roller and the continuous scraps of paper.Contain 70%～90% polyalcohol, 1%～15% moisture, 0.01%～22% functional medicine in the composition.

Polyalcohol comprises glycerine, diglycerol, propane diols, 1,3-butanediol, polyethylene glycol and their polyalcohols such as derivative; Carbohydrates such as D-sorbite, glucose, xylitol, maltose, maltitol, mannitol, trehalose.

As functional medicine, there are softening agent, surfactant, inorganic and organic microparticle powder, oiliness to become to grade.Softening agent, surfactant have to be given the tissue paper flexibility, or makes the effect of surface smoothing, wherein, and suitable anions type surfactant, cationic surface active agent and zwitterionic surfactant.Inorganic and organic microparticle powder can make the surface be level and smooth skin sense of touch.The oiliness composition has the effect that improves lubricity, can use higher alcohols such as atoleine, cetanol, stearyl alcohol, oleyl alcohol.

In addition; As functional medicine, can add NMF that more than one hydrophilic macromolecule gel, collagen, Hydrolyzed Collagen, hydrolysis of keratin, hydrolyzed silk protein, hyaluronic acid or combination in any such as its salt, ceramide are formed as the medicament of assisting or keep the moisture retention of polyalcohol.

In addition, as functional medicine, can suitably be mixed emollients such as spices, various natural medicinal extract, vitamin class, make the stable components that is mixed emulsifying agent, be used to suppress the foaming of soup and make deodorants such as the stable antifoaming agent of coating, mould inhibitor, organic acid.The anti-oxidant that further, can contain Vitamin C, vitamin e.

Among the mentioned component, considering from the stable aspect of viscosity, coating weight that makes soup, is principal component with polyalcohols such as glycerine, propane diols preferably.

Temperature when preferably making the soup coating is 30 ℃～60 ℃, is preferably 35 ℃～55 ℃.

After soup coated 2 layers of continuous scraps of paper, carried out integrated with interior to the lamination layer at 0.3 second～2.5 seconds, preferred 0.3 second～1.0 seconds.In the accompanying drawing example,, 2 layers of continuous scraps of paper are implemented contact embossing (embossing) handle, thereby fix through being supplied in contact embossing axle 18 and backing roll 19.At this moment, be configured with the mode that contacts 18 contacts of embossing axle according to the few continuous scraps of paper 32 of soup coating weight.Preferably wide from both sides with respect to paper be on 1/10～1/20 the position, likewise implement the contact embossing in the vertical with the width of 1mm～10mm.Utilize bonding agent that layer is fixedly waited any known method though also can use, use under the situation of bonding agent, have problem such as make the hardening of skin sense of touch easily, when soup be coated with, peel off easily, therefore we can say more preferably to use to contact embossing.

2 layers of continuous scraps of paper for having given the contact embossing utilize slitter 20 that its rip cutting is the goods width, utilize reel cylinder 21 to reel then, obtain secondary paper roll 22.Preferably, the secondary paper roll 22 that will carry out with predetermined volume number reeling in room temperature left standstill more than 8 hours, little by little carry out the soup smears to ply of paper inner soak into and to the transfer of opposite.

In the past; Utilize the outer coating apparatus of machine to wait and carry out the soup painting process; And be to carry out with the running speed of 200m/ minute～350m/ minute, but in the present invention, need be after the soup coating; Therefore immediately lamination is carried out integratedly, preferably lamination, soup coating, laminated integratedization of the continuous scraps of paper, this a series of apparatus integration ground of reeling are carried out.At this moment, the running speed of device can be identical with painting process speed in the past, but the running speed of other manufacturing process of preferably not slowing down.After the coating; Being easy to generate the intensity that is caused by suction, moisture absorption descends; Disconnected paper takes place; Therefore fix in order before suction, moisture absorption carried out, to carry out lamination, expectation is carried out the soup painting process with 300m/ minute～1200m/ minute, more preferably 750m/ minute～900m/ minute running speed.Tissue paper after soup soaks into is accommodated in the carton through folding processing.

The example of the tissue paper of this mode is shown in Fig. 3.Fig. 3 (A) is the sectional view (sectional view that parallel cut-out forms on the MD direction) of 2 layers the continuous scraps of paper for the preceding lamination of soup coating.When soup being coated lamination and is the two sides of 2 layers of continuous scraps of paper, the amount of liquid medicine on two sides there are differences, in the accompanying drawings, at the more soup of the scraps of paper 31 sides coating continuously.After the soup coating, before the scraps of paper were elongated to maximum continuously, it was integrated to utilize 30 pairs of lamination layers of contact embossing machine to carry out, and utilizes the slitter rip cutting to be goods width (Fig. 3 (B)).Then, the synusia after integrated is reeled, and leave standstill (soup soaks into operation) for soup is soaked into.Soak into operation from laminated integrated chemical industry preface to soup, the continuous scraps of paper 31,32 that are coated with soup mainly extend on the MD direction.At this moment, the percentage elongation of the continuous scraps of paper 31 that is coated with more soup is greater than another continuous scraps of paper 32, but the two continuous scraps of paper are fixed through the contact embossing, therefore on the surface of the more continuous scraps of paper 31 of elongation, produces fold (Fig. 3 (C)).If the crepe ratio of the continuous scraps of paper of lamination also there are differences, and the scraps of paper 31 use the high body paper of crepe ratio continuously, then can further make the percentage elongation of the continuous scraps of paper 31 and the continuous scraps of paper 32 produce difference.

Wrinkling is after utilizing Flying Dutchman (yankee dryer) that body paper is carried out drying, utilize creping doctor to peel off from drying cylinder after, form by the difference of drying cylinder speed and winding speed.This is wrinkling to be to utilize the attaching of paper on drying cylinder to adjust shape; But because this attaching has a little uneven distribution and fibrous raw material does not distribute equably; So if observe in the visual field of microcosmic, there is a little uneven distribution in then wrinkling three-dimensional shape.Crepe ratio is big more, and this uneven distribution is obvious more.Crepe ratio is meant the value of being obtained by following formula.

((peripheral speed of the drying cylinder during system paper)-(batching peripheral speed))/(peripheral speed of the drying cylinder during system paper) * 100

Along with this wrinkling uneven distribution, also produce uneven distribution in the stretching of coating during soup, it is that form with the small ripple of three-dimensional forms.This ripple because of the effect of tension force and not obvious, but after processing, cutting out to goods, restores to the original state and becomes obvious when body paper is modified.The coating weight of the soup on the scraps of paper is many more, and is wrinkling big more, and then the ripple of the variation of corrugated shape, the scraps of paper is also big more; On the contrary, the coating weight of the soup on the scraps of paper is few more, and is then wrinkling more little, and then the ripple of the variation of corrugated shape, the scraps of paper is also more little.Therefore, be not only the change coating weight, also can produce fluffy effect synergistically through changing crepe ratio.

In addition, about quality, and under the situation of goodsization, if do not carry out the soup coating, then as tissue paper fluffy sense difference (Fig. 4 (A)) on the two sides of goods with the crepe ratio different successive scraps of

paper

31,32 laminations.But; Through being coated with more soup on the scraps of paper 31 continuously at concave-convex surface bigger (crepe ratio is high); The scraps of paper 31 can be to extend than the continuous scraps of paper 32 high extensibilitys continuously; But thereby owing to utilized the contact embossing can fix (not shown) with the MD direction abreast, the scraps of paper 31 produce ripple continuously, and the loft of laminated increases.(Fig. 4 (B)).

Because the soup coating weight there are differences; Skin sense of touch, usability difference on the two sides of meeting worry goods; But through secondary paper roll feed to thereafter operation (folding process etc.) is being left standstill with the state of roller before, thereby can keep the corresponding each other state (soup soaks into operation, Fig. 5) in surface of the soup coating weight different successive scraps of

paper

31,32; Therefore the medicine liquid ingredient between the scraps of paper bit by bit shifts (grey arrow among the figure) continuously, and this difference is slowly alleviated in modified.Hollow arrow among Fig. 5 is represented the direction of soaking into of medicine liquid ingredient.

Make the amount of moisture in the soup be 1%～15%, be preferably 5%～13%.The amount of moisture of soup is low, less than under 1% the situation, the wrinkling stretching after the coating just diminishes, and is difficult to obtain the effect that desired loft improves.On the contrary, amount of moisture in the soup is high, surpass under 15% the situation, the decline of the hot strength in the processing and the big and disconnected easily paper that stretches, so operation property is poor.In addition, the fold of two scraps of paper excessively stretches, and therefore can't obtain the effect that desired loft improves.Amount of moisture in the soup that is coated with utilizes karl fischer method to obtain.

After will having carried out 2 wrinkling paper conversion range upon range of and that the soup coating weight is different each other and being goods, the scraps of paper are moisture absorption fully, thereby the qualities on two surfaces are approached evenly.But, for by wrinkling stretching that moisture produced of temporarily giving and the fold that is produced,, can not return to original shape even moisture reduces yet, the residual difference that stretching is to a certain degree arranged is being cut the fluffy effect of back generation to paper web.

Through fluffy effect, be 10g/m for example at basic weight based on this fold ²～13g/m ²During the left and right sides, the paper that each is taken out is thick be 110 μ m～180 μ m, more preferably 120 μ m～170 μ m, further be preferably 130 μ m～160 μ m; Preferably making the 180 paper web loft of taking out is 50 μ m～68 μ m, 55 μ m～65 μ m more preferably.

Need to prove that in the accompanying drawing example, row show 2 layers of tissue paper, but also can be for having the tissue paper more than 3 layers in the intermediate layer more than 1 layer.

Particularly in thin-paged paper products, above-mentioned secondary paper roll is supplied to folding manufacturing procedure.As folding manufacturing procedure, can use known method such as rotary interfolded device, multistation formula interfolded device, more preferably use the high multistation formula interfolded device of productivity ratio.

A large amount of secondary paper rolls 22 is installed on multistation formula interfolded device, extracts the continuous scraps of paper of secondary out and fold, carry out lamination simultaneously, make tissue paper thus and pile up by the secondary paper roll of being installed 22.Below, describe for an example of this multistation formula interfolded device.

Among Fig. 6 and Fig. 7, show an example of multistation formula interfolded device.Symbol 2 expressions among the figure are installed on the

secondary paper roll

22,22 of the not shown secondary paper roll support portion of multistation formula interfolded device 1 ...On the direction (horizontal direction in Fig. 6, paper fore-and-aft direction in Fig. 7) vertical, this

secondary paper roll

22,22 of requirement is installed side by side laterally with the diagram plane ...For each secondary roll R; Utilize manufacturing equipment, the manufacturing approach of above-mentioned thin-paged paper products with the secondary paper roll; On the thin-paged paper products width, form the crack, reel, install thus with the width more than 2 times (being 2 times of width in the accompanying drawing example) of thin-paged paper products.

The continuous scraps of paper 63A of secondary and the 63B of the continuous band shape that is rolled out by secondary paper roll 22 are directed to deflector roll G1, and guiding devices such as G1 are admitted to fold mechanism portion 60 thus.In addition, as shown in Figure 8, fold mechanism portion 60 possesses the flap P by necessary amount, P ... Be arranged side by side the flap group 64 that forms.For each flap P, possess in position respectively and be used to guide continuous scraps of paper 63A of a pair of continuous secondary or 63B deflector roll G2, G2 and aimming circle pole member G3, G3.Further, at flap P, P ... The below, possessing has the conveyer belt 65 that supports and transmit laminated tape 67, obtains on one side said laminated tape 67 carries out lamination through an edge contraction.

Use the flap P of this kind, P ... Folding device for example for through No. 4052048 known devices such as patent specification of United States Patent (USP).The continuous scraps of paper 63A of secondary as shown in Figure 9, that the folding device of this kind is continuous with each on one side, 63B ... Be folded into Z word shape, Yi Bian make adjacency and the continuous continuous scraps of paper 63A of secondary, 63B ... The side end mutual superposition, carry out lamination simultaneously.

Among Figure 10～Figure 13, at length represented the position that is particularly related to flap P of fold mechanism portion 60.In this fold mechanism portion 60, guide continuous scraps of paper 63A of a pair of continuous secondary and 63B to each flap P.At this moment,, utilize aimming circle pole member G3, G3, channeling conduct when staggered according to the mutual nonoverlapping mode of side end in the position for continuous scraps of paper 63A of continuous secondary and 63B.

In the moment that guides to flap P; Will be at the overlapping continuous scraps of paper of continuous secondary of downside as the 1st continuous continuous scraps of paper 63A of secondary; Will be at the overlapping continuous scraps of paper of continuous secondary of upside as the 2nd continuous continuous scraps of paper 63B of secondary; For continuous scraps of paper 63A of these continuous secondaries and 63B; Then like Fig. 9 and shown in Figure 11; The 1st continuous continuous scraps of paper 63A of secondary turns back to the upside of the 2nd continuous continuous scraps of paper 63B of secondary because of the side plate P1 of flap P with the underlapped side end e1 of the 2nd continuous continuous scraps of paper 63B of secondary, and simultaneously like Fig. 9 and shown in Figure 12, the 2nd continuous continuous scraps of paper 63B of secondary turns back to downside below being pulled to flap P because of the slit P2 from flap P with the underlapped side end e2 of the 1st continuous continuous scraps of paper 63A of secondary.At this moment, like Fig. 9 and shown in Figure 13, the side end e3 (e1) that in the flap P at the upper reaches, has carried out the folding continuous scraps of paper 63A of continuous secondary that has carried out lamination simultaneously is directed between the fold back portion of the 2nd continuous continuous scraps of paper 63B of secondary from the slit P2 of flap P.Thus, the continuous scraps of paper 63A of each continuous secondary, 63B ... Be folded into Z word shape; Simultaneously in abutting connection with and continuous continuous scraps of paper 63A of secondary and the side end mutual superposition of 63B; Therefore when goods use,, the side end of following tissue paper is drawn out of as long as extract the tissue paper of the superiors out.

For the laminated tape 67 that obtains by multistation formula interfolded device 6 through above method; As shown in Figure 6, in the cutting unit 66 of back segment, on flow direction FL, it is cut out (cut-out) across predetermined interval; Thereby obtain tissue paper and pile up 67a; Shown in Figure 14 (a), further in back segment equipment, this tissue paper is piled up 67a be accommodated among the containing box B.Need to prove, in multistation formula interfolded device 1 as above, for the direction of the paper of laminated tape 67, along flow direction FL to serve as vertically (MD direction), along the direction vertical serve as horizontal (CD direction) with flow direction.Therefore; Shown in Figure 14 (a); For constituting laminated tape 67 is cut into predetermined length and the tissue paper that obtains is piled up the direction of paper of the tissue paper of 67a; With the folding direction along tissue paper is horizontal (CD direction), along the direction vertical with the folding direction of tissue paper to serve as vertical (MD direction).

Among Figure 14 (b), show through tissue paper being piled up 67a and be accommodated in an example of the goods that form among the containing box B.On containing box B, be provided with perforation M, utilize this perforation M to make the part fracture above the containing box B, thereby on containing box B, opening is set.Be utilized in the film F that central authorities have slit and cover this opening, thereby can take out tissue paper T through the slit that is arranged on this film F.

And; As stated, constituting tissue paper, to pile up the direction of paper of the tissue paper of 67a be serve as laterally (CD direction) with the folding direction along tissue paper, so shown in Figure 14 (B); With tissue paper T when containing box B extracts out, it extracts direction out is horizontal (CD direction) along tissue paper T.

The summary of the device of other modes of the present invention is shown in Figure 15, and flow chart is shown in Figure 16.In the mode of Figure 15, the continuous scraps of paper of lamination after soup coating, laminated integratedization are sent in the rotary interfolded device 23, after implementing to fold processing, are cut off into the goods width.

Embodiment

Utilize following condition to make body paper and soup, and implement the elongation test (test 1) of body paper, the performance comparative test (test 2) of tissue paper.

[body paper]

The paper pulp that constitutes body paper is 50% NBKP, 50% LBKP.In addition, to have used basic weight be per 1 layer of 13.5g/m to the body paper before the range upon range of processing ², overlapping be paper under 2 layers the state thick be that 150 μ m, crepe ratio are 19% body paper.

[soup]

Soup is to be that the mode of 300mPas (40 ℃) prepares according to viscosity.

[performance of tissue paper relatively]

For the embodiment 1～9 and the comparative example of tissue paper of the present invention, implement the test of performance test and sense.The result that the formation of embodiment 1～9 and comparative example, the performance evaluation of tissue paper and sense are estimated is as shown in table 1.The method that performance evaluation and sense are estimated is following.

[coating weight]

Coating weight is to calculate according to each scraps of paper basic weight during by the uncoated soup after range upon range of and the difference of each scraps of paper basic weight after the pairing firm coating in operation.

(coating weight g/m ²Basic weight g/m after the)=(coating just ²Basic weight g/m when)-(is uncoated ²)

The total of the coating weight on two top layers or the coating weight on two sides is meant the total of coating weight of per unit area of the scraps of paper of the tissue paper that cascades, and is with the coating weight addition of each scraps of paper and the value that obtains.

[paper is thick]

Paper is thick to be under the condition of JIS P 8111 (1998), uses dial thickness gauge (thickness tester) " PEACOCK G type " (the rugged making of tail institute) to measure the thickness that obtains.Specifically; Affirmation at plunger and measure do not have disintegrating slag, dust between the platform after, plunger dropped to measures on the platform, make zero thereby the pointer of above-mentioned dial thickness gauge is moved; Then; Mention plunger sample is placed on the testing stand, vertically and lentamente fall plunger, read the reading of this moment with respect to paper.At this moment, set for only to carry and put plunger.The terminal of plunger is metal system and the plane of diameter 10mm vertically contacted with paper plane, and the load that this paper is thick when measuring is about 70gf.Need to prove that paper is thick to be the mean value that carries out 10 mensuration and obtain in 2 layers.

[goods basic weight]

The goods basic weight is based on that JIS P 8124 (1998) measures.Under the situation of 2 layers of thin-paged paper products of table 1, put down in writing the average basis weight of 2 layers of scraps of paper.

[paper web loft]

With weight is that 30g, size are piled up for the plastic plate of 130mm * 250mm is positioned over tissue paper, and the mean value of getting 4 angles is as the paper web loft.

[flexibility (pliability)]

Pliability is based on that hand feel measurement method (JIS L 1096E) measures.

Wherein, making test film is the size of 100mm * 100mm, and the gap is that 5mm implements.Vertically, laterally measuring 5 times respectively with individual layer, whole 10 times mean values remain to 2 significant digits, are that unit representes with cN/100mm.

[sense evaluation]

Tissue paper for

embodiment

1,2 and comparative example 1,2 carries out the sense evaluation about flexibility, loose soft feeling.The sense evaluation is carried out through following method: by 15 inspectors, carried out for 5 stages and estimate, wherein be " 3 " with the tissue paper commonly used (" Elleair Tissue " 180 takes out dress (king's system is made of paper to be made)) that does not carry out the soup coating.Metewand is following.

The achievement of Elleair Tissue is all as 3

5: very excellent

4: excellence

3: identical with benchmark

2: poor

1: non-constant

The result that the official can be estimated is shown in table 1.

Table 1

As shown in table 1, if the embodiment 1～9 as 2 layers of tissue paper is compared with comparative example, although then basic weight much at one, paper is thick to demonstrate higher value with the paper web loft in embodiment 1～9.In addition, in the functionality evaluation, also obtained embodiment in the result who is better than comparative example aspect the loose soft feeling.For

embodiment

1,2, can know that it in the higher thick and loose soft feeling of paper of maintenance, also has the good flexibility (pliability, soft feeling) with the comparative example equal extent especially.

Industrial applicibility

The present invention not only can be used in home-use employed tissue paper, can also in as any field industrial, the fluffy tissue paper of needs such as use as the cleaning wiping of physical and chemical experiment machine, use.

Symbol description

11; 12 ... Big paper roll, 13 ... Lamination roller, 14 ... Range upon range of calender, 15 ... Scraper chamber, 16; 17 ... Coating apparatus, 18 ... Contact embossing axle, 19 ... Backing roll, 20 ... Slitter, 21 ... Reel cylinder, 22 ... Range upon range of paper roll, 30 ... Contact embossing, 31,32 ... The continuous scraps of paper

Claims

1. the manufacturing approach of the secondary paper roll used of a thin-paged paper products; It is to make the manufacturing approach of the thin-paged paper products of the secondary paper roll more than 2 that thin-paged paper products uses with the secondary paper roll continuously by paper roll; It is characterized in that this manufacturing approach has following operation:

(1) lamination procedure will be carried out lamination along its continuous direction by the paper roll that a paper roll more than 2 is extracted out, thereby obtained the continuous scraps of paper of lamination;

(2) soup painting process is only coated soup on the top layer side of the continuous scraps of paper of said lamination, or is coated with soup according to the coating weight of a top layer side more than the mode of the coating weight of another top layer side;

(3) engage operation, through the continuous scraps of paper of lamination are clamped between backing roll and the roller bearing, thereby on the continuous scraps of paper of lamination, form the bonding part of the wire that prevents splitting;

(4) rip cutting operation is that the goods width of thin-paged paper products or the mode of its several times width are carried out rip cutting according to making the continuous scraps of paper of lamination; With

(5) coiling operation with the coaxial coiling of the continuous scraps of paper of each lamination after the rip cutting, thereby forms the goods width of thin-paged paper products or the secondary paper roll more than 2 of several times width.

2. the manufacturing approach of the secondary paper roll that thin-paged paper products as claimed in claim 1 is used wherein, adds up to 1.5g/m according to the coating weight on two top layers ²～5.0g/m ²Mode be coated with soup.

3. the manufacturing approach of the secondary paper roll that thin-paged paper products as claimed in claim 1 is used, wherein, the moisture rate of said soup is that 1%～15%, 40 ℃ viscosity is 1mPas～700mPas.

4. the manufacturing approach of the secondary paper roll that thin-paged paper products as claimed in claim 1 is used wherein, after 0.3 second～2.5 seconds, forms said bonding part from last soup coating on the continuous scraps of paper of lamination.

5. the manufacturing approach of the secondary paper roll that thin-paged paper products as claimed in claim 1 is used, wherein, the crepe ratio on a said top layer is higher by 2%～10% than the crepe ratio on said another top layer.

6. the manufacturing approach of the secondary paper roll that thin-paged paper products as claimed in claim 1 is used, wherein, the coating of said soup utilizes mode of printing to carry out respectively, and coating speed is 300m/ minute～1200m/ minute.

7. the manufacturing approach of the secondary paper roll that thin-paged paper products as claimed in claim 1 is used, wherein, the basic weight of the continuous scraps of paper of lamination of process soup painting process, joint operation is each layer 10g/m ²～25g/m ², paper is thick in the two-layer 110 μ m～180 μ m that count.

8. a thin-paged paper products is characterized in that, this thin-paged paper products forms through each described manufacturing approach manufacturing of claim 1～7.