CN101952505A - Tissue paper for domestic use - Google Patents
Tissue paper for domestic use Download PDFInfo
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- CN101952505A CN101952505A CN2009801058558A CN200980105855A CN101952505A CN 101952505 A CN101952505 A CN 101952505A CN 2009801058558 A CN2009801058558 A CN 2009801058558A CN 200980105855 A CN200980105855 A CN 200980105855A CN 101952505 A CN101952505 A CN 101952505A
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- paper
- pulp
- paper pulp
- cavitation erosion
- pressure
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- 229920002488 Hemicellulose Polymers 0.000 description 1
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- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 description 1
- 150000004056 anthraquinones Chemical class 0.000 description 1
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- BPHHNXJPFPEJOF-UHFFFAOYSA-J chembl296966 Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]S(=O)(=O)C1=CC(S([O-])(=O)=O)=C(N)C2=C(O)C(N=NC3=CC=C(C=C3OC)C=3C=C(C(=CC=3)N=NC=3C(=C4C(N)=C(C=C(C4=CC=3)S([O-])(=O)=O)S([O-])(=O)=O)O)OC)=CC=C21 BPHHNXJPFPEJOF-UHFFFAOYSA-J 0.000 description 1
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- TVHALOSDPLTTSR-UHFFFAOYSA-H hexasodium;[oxido-[oxido(phosphonatooxy)phosphoryl]oxyphosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O TVHALOSDPLTTSR-UHFFFAOYSA-H 0.000 description 1
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Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/002—Tissue paper; Absorbent paper
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
Landscapes
- Paper (AREA)
Abstract
Provided is a tissue paper for domestic use, which is soft, is comfortable to the touch, and has excellent strength. The tissue paper for domestic use is characterized by containing a pulp obtained by applying, to pulp fibers, an impact force generating upon the collapse of bubbles generated by cavitation. Also provided is the tissue paper for domestic use which is composed of two or more paper layers and is characterized in that at least one of the paper layers contains a pulp obtained by applying, to pulp fibers, an impact force generating upon the collapse of bubbles generated by cavitation.
Description
Technical field
The present invention relates to the household tissue paper such as thin paper (tissue paper), paper handkerchief of toilet paper facial tissue etc., relate in particular to softness, the hand sense of touch is good and intensity is high household tissue paper.
Background technology
All the time, as employed paper pulp in the so-called household tissue papers such as the thin paper of toilet paper, facial tissue etc., paper handkerchief, use following material: separate the timber smear metal in broad leaf tree, coniferous tree source and the liquid paper pulp (slushed pulp) of the pulpous state attitude former state that the chemical pulp that obtains is made by steaming, with this liquid paper pulp dewater, the universe is dry and the dry pulp (dry pulp) that obtains, perhaps waste paper is carried out that deinking is handled and the deinking paper pulp that obtains; These paper pulp can be with the state of unbleached pulp, bleached pulp, the state of the paper pulp of perhaps not pulling an oar, pull an oar, and design is used alone or as a mixture according to quality.
For the flexibility that belongs to the thin paper important quality with raising, the hand sense of touch is that the technology of purpose is studied always, following various scheme has for example been proposed: to stacked kind of copying paper paper pulp, its usage rate has carried out stacked thin paper and the manufacture method (patent documentation 1 thereof adjusted, patent documentation 2), by the suitable fourdrinier wire of selecting, short net, two nets, the paper machine of circle shape net Yankee paper machine etc., perhaps by adding softening agent for paper to liquid paper pulp, for example fatty acid ester is gentle softening agent (patent documentation 3), quaternary ammonium salt cationic surfactant (patent documentation 4), carbamate alcohol or its salt, or cationization thing (patent documentation 5), non-cationic type surfactant (patent documentation 6, patent documentation 7), Quadrafos (patent documentation 8), polysiloxanes (patent documentation 9, patent documentation 10) etc. interpolation medicament, thereby improve the sliding compliance of liquid paper pulp itself and the hand sense of touch is improved, the method that limbers up, the after-applied mechanically milling of temporary transient thicken pulp are handled and are made fiber bending (patent documentation 11, patent documentation 12) etc.
Can access good soft effect though the method for medicament is added in above-mentioned use, itself bring the worry of obstacle because foaming characteristic exists greatly to copying the paper operation, existence sometimes causes the problem of paper power and water imbibition decline.In addition, when making fiber bending, with increasing unnecessary raw material enrichment process, so there is the problem of unfavorable grade on the energy by mechanical treatment.
In addition, in order to strengthen the moistening intensity of thin paper, mainly use the moistening paper power reinforcing agent of polyamide, polyamine, epoxy resin etc., but exist thin paper itself to anchylose, the problem of variation aspect flexibility, hand sense of touch.
In addition, in the past for surface smoothing is improved, behind the thin paper paper machine, use the chilled roll that 1 group or 2 groups fully grind by each a pair of quilt of 1 up and down, the calender that metallic roll constitutes.Yet, when improving line pressure, there is the thickness attenuation and anchyloses in order to strengthen flatness with this calender, the hand sense of touch is the such problem of hardening also.
Patent documentation 1: Japanese kokai publication sho 54-46914 communique
Patent documentation 2: Japan opens flat 4-66992 communique in fact
Patent documentation 3: United States Patent (USP) 3,296, No. 065 communique
Patent documentation 4: Japanese kokai publication sho 48-22701 communique
Patent documentation 5: Japanese kokai publication sho 60-139897 communique
Patent documentation 6: Japanese kokai publication hei 2-99690 communique
Patent documentation 7: Japanese kokai publication hei 2-99691 communique
Patent documentation 8: Japanese kokai publication hei 2-36288 communique
Patent documentation 9: Japanese kokai publication hei 2-224626 communique
Patent documentation 10: Japanese kokai publication hei 3-900 communique
Patent documentation 11: Japanese kokai publication hei 5-23262 communique
Patent documentation 12: Japanese kokai publication hei 6-14848 communique
Summary of the invention
Problem of the present invention is for providing softness and hand sense of touch good, and the household tissue paper of good strength.
Processes such as the inventor study intensively, found that by containing the impulsive force that is produced when the bubble that will generate because of cavitation erosion breaks and put on the paper pulp that paper pulp fiber obtains, just can access softness and the hand sense of touch is good, and the household tissue paper of good strength, and finished the present invention.
According to the present invention, can obtain softness and the hand sense of touch is good, and the also good household tissue paper of intensity.
Description of drawings
The synoptic diagram of the cavitation erosion jet flow treating apparatus that [Fig. 1] uses in an embodiment.
Symbol description
1: sample jar
2: nozzle
3: the cavitation erosion jet unit
4: plunger displacement pump
5: the upstream side pressure-control valve
6: the downstream pressure-control valve
7: the upstream side Pressure gauge
8: the downstream Pressure gauge
9: water-supply valve
10: circulating valve
11: draining valve
12: temperature sensor
13: agitator
The specific embodiment
Household tissue paper of the present invention is characterised in that, contains the impulsive force that is produced when the bubble that will generate because of cavitation erosion breaks and puts on the paper pulp that paper pulp fiber obtains.The processing that the impulsive force that will be produced in the time of will breaking because of the bubble that cavitation erosion generates below puts on paper pulp fiber is referred to as the cavitation erosion processing.
There is no particular limitation for the paper pulp of the object of handling as cavitation erosion of the present invention, can use ligno-cellulosic materials steamed to separate in alkalescence and steam the chemical pulp separating and obtain (acerose bleached kraft pulp (NBKP) or not the bleached kraft pulp (LBKP) of bleached kraft pulp (NUKP), broad leaf tree), mechanical pulp (groundwood pulp (GP), refiner mechanical paper pulp (RGP), thermomechanical paper pulp (TMP), CTMP (CTMP) etc.), de inked pulp (DIP) etc. in the soup.Can use kraft pulp, polysulfide paper pulp, caustic soda paper pulp, alkaline sulfite paper pulp, sodium carbonate paper pulp and oxygen-caustic soda paper pulp etc. as chemical pulp.
Above-mentioned chemical pulp can be to separate in the soup as steaming to steam to separate after enzymolysis auxiliary agent adds cyclic ketones compound (for example, anthraquinone, 1,4-dihydro-9,10-amerantrone etc.) in above-mentioned steaming to obtain.In addition, as above-mentioned chemical pulp the present invention kraft pulp preferably, this kraft pulp can be by being added by the segmentation of digester liquor and the following current of digester inside is steamed to separate with adverse current and steamed the paper pulp that so-called " improveing alkaline digestion process " of being deconstructed into obtains.As these chemical pulps can be with unbleached pulp or bleached pulp state, perhaps not the making beating or the making beating paper pulp state, can be used alone or as a mixture aptly.
Handling to further describe for cavitation erosion, is that the impulsive force that the bubble that will take place because of cavitation erosion is produced when breaking puts on paper pulp fiber, promotes the outside fibrillation of paper pulp, suppresses inner fibrillation on the other hand and adjusts the processing of freedom.Cavitation erosion is handled and is preferably the cavitation erosion jet flow processing of being put down in writing as the WO2005/012632 communique.
In addition, can also make up that cavitation erosion is handled and the machinery making beating is handled and make the outside fibrillation of paper pulp fiber.In the pulp suspension, can also contain the inorganic particles in the contained filler of waste paper or paper piece, pigment source outside the paper pulp fiber.Cavitation erosion is handled in the outside fibrillation that promotes paper pulp fiber and is suppressed inner fibrillation, so with the paper pulp that uses method in the past, the paper pulp that promptly uses the device of homogenate machine etc. to utilize the making beating of mechanical force to handle is compared, and can obtain the paper pulp that bulking intensity when identical freedom (high) is higher and intensity is also good.Contain the household tissue paper of handling gained by this cavitation erosion with outside fibriilar paper pulp, not only soft more, and also good on the intensity.
Handle the Canadian Standard Freeness of the paper pulp of modulating by cavitating, preferred 50～650ml during chemical pulp, the scope of preferred 50～400ml during mechanical pulp or waste paper (deinking) slurry.In addition, when mixing above-mentioned paper pulp, be preferably the scope of total Canadian Standard Freeness at 100～550ml.
Then, describing cavitation erosion in detail handles.As add in the book (Ishikawajima-Harima Heavy Industries Co., Ltd. writes, new edition cavitation erosion basis and nearest progress, Maki bookstore, 1999) of rattan record, cavitation erosion causes the high impact forces that arrives number GPa in the regional area of number μ m levels when the breaking of cavitation bubbles, and when bubble breaks by the observation of adiabatic compression microcosmic then temperature rise to thousands of ℃.Its result, generation will be attended by the rising of temperature when cavitating.Can find out that thus cavitation erosion has convection cell machinery to bring the harm face of damage, vibrations, decreased performance etc., is taken as the technical task that must control its generation always.In recent years, obtained development rapidly, by carrying out high accuracy control to generation area, the impulsive force of cavitation erosion as operational elements with the hydrodynamic parameters of cavitation erosion jet flow for the research of cavitating.Its result can expect effectively to utilize its powerful energy by control collapse of bubbles impulsive force.Therefore, by operation with adjust hydrodynamic parameters and high-precision control is carried out in cavitation erosion become possibility.This stability that shows maintenance technical role effect has become possibility, and the invention is characterized in and be not and will produce and bring the bubble that cavitation erosion generated of uncontrollable harm as spontaneous in the former fluid machinery, but the bubble that cavitation erosion generated that will carry out control, be directed in the pulp suspension energetically, thereby effectively utilize its energy.
As the means of the initiation among the present invention cavitation erosion, can enumerate method, the method for using ultrasonic oscillator of utilizing liquid jet, use ultrasonic oscillator and horn shape amplifier method, utilize method that laser shines etc., but be not limited thereto.Preferably use the method for liquid jet, the efficient height that it generates cavitation bubbles can form the cavitation bubbles cloud with the more powerful impulsive force of breaking, so big to the action effect of paper pulp fiber.The cavitation erosion that is caused by above-mentioned method is different from spontaneous generation in the former fluid machinery significantly and brings the cavitation erosion of uncontrollable harm.
As mentioned above, preferably handle, below it is elaborated as WO2005/012632 communique cavitation erosion jet flow that put down in writing, that utilize liquid jet as the cavitation erosion processing.
Liquid jet is the liquid or the jet flow of disperseing in liquid or having mixed the fluid of solids or gas, refers to contain the liquid jet of paper pulp, inorganic particles slurry, bubble.Can contain the bubble that produces because of cavitation erosion at this said gas.
Cavitation erosion liquid is accelerated and locality pressure causes when becoming the vapour pressure that is lower than its liquid, so flow velocity and pressure particular importance.Thus, basic dimensionless number, cavitation number (Cavitation Number) σ with expression cavitation erosion state is defined as following (Ishikawajima-Harima Heavy Industries Co., Ltd. writes, new edition cavitates basis and nearest progress, Maki bookstore, 1999).
[mathematical expression 1]
(p ∞: pressure (absolute pressure), the U ∞ of common stream: flow velocity, the p of common stream
v: the vapour pressure of fluid (absolute pressure), ρ: density)
At this, cavitation number is greatly that expression institute flow field is in the state that is difficult to cavitate.Especially by as the cavitation erosion nozzle of jet flow or spray orifice when causing cavitation erosion, can be with nozzle upstream lateral pressure p
1(absolute pressure), nozzle downstream pressure p
2The saturated vapour pressure p of (absolute pressure), sample water
v(absolute pressure) is rewritten into cavitation number σ as shown in the formula (2), and in the cavitation erosion jet flow, the pressure differential between p1, p2, the pv is big, is p
1" p
2" p
vSo cavitation number σ can further be similar to following (H.Soyama, J.Soc.Mat.Sci.Japan, 47 (4), 3811998).
[mathematical expression 2]
So, cavitation number σ is represented by 2 values of the upstream side pressure of nozzle and downstream pressure.Wherein, the pressure of measuring in the embodiments of the invention is gauge pressure, with the cavitation number σ among following formula (3) expression the present invention.
[mathematical expression 3]
σ＝p4/p3
(wherein, p3: nozzle upstream lateral pressure (gauge pressure), p4: nozzle downstream pressure (gauge pressure))
The preferably above-mentioned cavitation number σ of the condition of the cavitation erosion among the present invention is 0.001～0.5, more preferably 0.003～0.2, particularly preferably be 0.01～0.1.Cavitation number σ is less than 0.001 o'clock because cavitation bubbles is low and effect is little with on every side pressure differential when breaking, greater than 0.5 o'clock since low being difficult to of pressure differential that liquid flows cavitate.
In addition, jetting fluid sprayed by nozzle or spray orifice cause when cavitation erosion, the pressure (nozzle upstream lateral pressure) of preferred jetting fluid is 0.01MPa (gauge pressure)～60MPa (gauge pressure), more preferably 0.7MPa (gauge pressure)～30MPa (gauge pressure), especially preferably 2MPa (gauge pressure)～15MPa (gauge pressure).The nozzle upstream lateral pressure during less than 0.01MPa (gauge pressure) owing to and be difficult to generate pressure differential between the pressure of nozzle downstream and action effect is little.In addition, when the nozzle upstream lateral pressure is higher than 60MPa (gauge pressure), need special pump and pressure vessel, so that energy resource consumption will become will be unfavorable on the big cost, and paper pulp fiber will be subjected to excessive damage, and will be undesirable when being used as paper making raw material.On the other hand, the pressure (nozzle downstream pressure) in the container preferably is 0.05MPa (gauge pressure)～2.6MPa (gauge pressure) with the static pressure.The reason of also exerting pressure on the downstream is that the pressure in the zone that cavitation bubbles breaks is uprised, bubble and pressure differential on every side become big, thereby bubble breaks more intensely and make impulsive force become big.In addition, the hypertonia in the container then cavitates and self just is difficult to take place.In addition, the pressure ratio of container inner pressure and jetting fluid pressure ((gauge pressure)/(gauge pressure)) is preferably in 0.001～0.5 scope.
In addition, the jet speed of jetting fluid is preferably in the scope of second 1m/ second～200m/, more preferably in the scope of second 20m/ second～100m/.Jet speed, is difficult to cavitate because pressure descends, so a little less than its effect during second less than 1m/.On the other hand, during second, require high pressure to need special device greater than 200m/, unfavorable on cost.
Cavitation erosion among the present invention is handled and can be selected jar to wait arbitrarily in the container or in the pipe arrangement and carry out, but is not limited to this.In addition, though can be disposable handle by (one-pass), the circulation by necessary number of times then can further increase effect.And can use a plurality of initiation means to carry out side by side or processing successively.
The jet flow that is used for causing cavitation erosion can be carried out at the container that opens at atmosphere as pulper, but preferably carries out in pressure vessel in order to control cavitation erosion.
Among the present invention, for example in utilizing the cavitation erosion initiating method of liquid jet, for example can spray to steam and stay the water again, the paper pulp that are recovered in water, running water, water for industrial use, the system paper operation to press water, paper waste, pulp suspension, alcohol etc., but be not limited to this as atomizing of liquids to pulp suspension.Preferably by spraying pulp suspension self, thereby outside the action effect that obtains to cause, also obtain from the hydromechanical shearing force of spray orifice during with high-pressure injection because of the cavitation erosion that is taken place around the jet flow, and then the bigger action effect of performance.In addition, when using pulp suspension as atomizing of liquids, also can be with all amount circular treatment as process object.
When handling by liquid jet initiation cavitation erosion, be preferably below the 5 weight % as the solid component concentration of the pulp suspension of process object formation efficiency aspect from bubble, more preferably below the 3 weight %, the scope of 0.1～1.5 weight % more preferably.
In addition, the pH of the pulp suspension during processing is preferably pH1～13, more preferably pH3～12, more preferably pH4～11.PH will become problem less than saprophage of 1 o'clock device etc., and will be unfavorable from the viewpoint of material and maintenance etc.On the other hand, pH was greater than paper pulp fiber generation alkali burn in 13 o'clock, so whiteness decline is not preferred.Because the swelling of paper pulp fiber is good, the growing amount of the active free radical of OH increases during alkali condition, so preferred.
Among the present invention, increase the flow velocity of jetting fluid, cause more powerful cavitation erosion by the expulsion pressure that improves liquid.And then uprise by the pressure that the container pressurization of taking in injected liquid is made the zone that cavitation bubbles breaks, make bubble and on every side pressure differential become big, so bubble breaks intensely, it is big that impulsive force also becomes.At this, jetting fluid is meant that from the liquid of spray orifice with high-pressure injection injected liquid is meant and has been injected in the container or the liquid in the pipe arrangement.The influence of the gas flow of cavitation erosion in the liquid body is integrated the impact between the gassing when gas is too much, so the impulsive force of breaking is absorbed by other bubble and produces buffering effect, thereby impulsive force dies down.Therefore, owing to be subjected to the influence of dissolved gas and vapour pressure, so its treatment temperature must be below the above boiling point of melting point.When liquid is medium with water, preferably be located at 0～80 ℃, more preferably be located at 10～60 ℃ scope and can obtain high effect.It is generally acknowledged impulsive force maximum on the intermediate point of melting point and boiling point, so during the aqueous solution, most preferably about 50 ℃, but also can not be subjected to the influence of vapour pressure during its following temperature, so as long as just can obtain high effect in above-mentioned scope.And when being higher than 80 ℃ temperature, the resistance to pressure that is used to cause the pressure vessel of cavitation erosion significantly descends, and causes the damage of container easily, so not preferred.
Among the present invention, the material of the reduction surface tension of liquid by adding surfactant etc. and can reduce and be used to cause the required energy that cavitates.Can exemplify known or novel surfactant as the material that adds, for example non-ionic surface active agent, anion surfactant, cationic surfactant, amphoteric surfactant or the organic solvent etc. of alkylene oxide adducts of soap, higher alkyl sulfates, alkylbenzenesulfonate, higher alcohol, alkylphenol, aliphatic acid etc. etc., but be not limited thereto.The single component that can be these constitutes, and also can be mixture of ingredients more than 2 kinds.Addition is so long as make jetting fluid and/or injected liquid surface tension reduces required amount and gets final product.In addition, the position of interpolation can be any position of causing the position operation before of cavitation erosion, when making liquid circulation, and can also be after the position of causing cavitation erosion.
Among the present invention,, do not have especially and limit, but match ratio is got over Gao Yueneng and obtained the high and soft household tissue paper of intensity with respect to the match ratio of the paper pulp of handling through cavitation erosion of total paper pulp amount.From this viewpoint, with respect to the absolute dry weight of full paper pulp preferably more than 5 weight %, more preferably at 30～100 weight %, further preferably at 60～100 weight %.Match ratio does not change on flexibility, hand sense of touch during less than 5 weight %, can't improve intensity.
Household tissue paper be with 1 layer or a plurality of layers constituted, 1 layer or a plurality of layers can be copied paper separately with the cavitation erosion pulp treatment, also the cavitation erosion pulp treatment more than 2 kinds can be mixed and copy paper, can also mix existing liquid paper pulp, dry pulp, de inked pulp (DIP) and copy paper to the paper pulp of handling through cavitation erosion.
To be overlapped 2 and carry out when stacked by the household tissue papers that a plurality of layer constitutes, the mode that makes the layer that contains the cavitation erosion pulp treatment become the outside overlaps, and the layer that then hand touched will be the layer that contains the pulp treatment that cavitates, so further strengthen the hand sense of touch.In addition, the lamination that will contain the pulp treatment that cavitates is connected to the Yang Ji drier, and to carry out the universe dry, is configured to can further strengthen the hand sense of touch when this face becomes the outside of 2 superimposed household tissue papers.
In addition, can also be with chemical pulp (acerose bleached kraft pulp (NBKP) or not the bleached kraft pulp (LBKP) of bleached kraft pulp (NUKP), broad leaf tree) or bleached kraft pulp (LUKP) etc. not), the paper pulp of mechanical pulp (groundwood pulp (GP), refiner mechanical paper pulp (RGP), thermomechanical paper pulp (TMP), CTMP (CTMP) etc.), de inked pulp (DIP) etc., mix with arbitrary proportion as the paper pulp beyond the paper pulp of handling through cavitation erosion and to use.
The paper pulp handled through cavitation erosion is the paper pulp that outside fibrillation has been promoted, but can obtain having the outside fibriilar paper pulp of flakey sometimes, will be explained below.
Book (the bright work of rock shellfish " cellulosic materials chemistry ", Tokyo University publish meeting, p68,2001) according to rock shellfish etc., the making beating of paper pulp is that the paper pulp fiber to saturation state applies the mechanicalness shear stress, between the microfibril of paper pulp fiber inside, generate space (inner fibrillation), make the fibrillation in the paper pulp fiber outside play fine hair (outside fibrillation), increase specific area and strengthen the swelling of paper pulp fiber, also can occur the part cut-out of fiber and the microfibre that the fiber outer peripheral face is peeled off simultaneously water.
Because the making beating of paper pulp is handled, formed fiber combining area increases when making paper, and various mechanics rerum naturas, optics rerum natura, liquid-absorbent will change.But, when molecular level is observed paper pulp fiber, in the process that making beating is handled the decline of cellulosic molecular weight very little, degree of crystallinity changes hardly.Think that this may be because amorphism and hydrophilic hemicellulose part causes the mechanicalness energy just as absorbing as the mat.
In addition, according to the book on island ground etc. (ground, island is modest wait collaborate, " tissue of timber ", gloomy northern publication, p55,1976), the outside fibrillation of seeing in the wood pulp with the usual method making beating is meant the filament thing about wide 0.4～1 μ m that arrives with observation by light microscope, microfibril be meant exist in the cell membrane want the disposition construction unit, be aggregate with cellulosic molecule of the width about 9～37nm.In the outside fibriilar paper pulp that uses among the present invention with flakey form, the outside fibrillation of characteristic flakey form is meant, having wide is more than the 3 μ m, the wide fiber surface with the degree size that is preferably with paper pulp fiber peels off or rises fine hair, and be that above-mentioned microfibril laterally links to each other and forms aggregate and become the layer of wide area, and the material that under the state that keeps layer structure, peels off of the microfibril on fibre wall surface.In addition, be feature with thickness in the scope of 9nm～2 μ m.And, during with the electron microscope observation fiber, preferably stop hydrogen in conjunction with and carried out measuring under the dry state of the universe, this is owing to fiber is only carried out simple when dry, because of attracteding to fiber surface, the outside fibrillation of capillarity is difficult to be identified, so this fibrillation is difficult to carry out high-precision observation.
Outside fibriilar being characterized as of flakey among the present invention dyeed with the high molecular dyestuff of molecular weight more than 10,000.That is, outside fibrillation be meant can the high molecular dyestuff of absorbing molecules amount more than 10,000 the microfibril aggregate.Can enumerate document (F.L.Simons as the dyestuff of molecular weight more than 10,000 as Simon etc., Tappi, 33 (7), 312 (1950)) and document (the Y.Xiaochun et al. of Xiaochun etc., Tappi Journal, 78 (6), 175 (1995) .) in put down in writing contain direct orange 15 (old color index (CI) no, 621 or CI Constitution no.40002/3) the orange of CIConstitution no.40000～40006 etc., so long as the material based on the fiber of cellulose of can dyeing just there is no particular limitation.
According to the document of Xiaochun etc., the dyestuff of above-mentioned molecular weight more than 10,000 is that the hydrodynamics size through determination of light scattering is the molecule more than the 5nm, and it can't soak in the pore less than 5nm that is present in pulp fiber surface.On the other hand, because the fibrillation that is made of the microfibril aggregate of pulp fiber surface exposes the outside at paper pulp fiber, so the dye molecule of above-mentioned molecular weight more than 10,000 is easy to just can be approaching, so can partly optionally dye to fibrillation by absorption.
Emphasize fibrillation part and observe for optical, can observe thereby can give bigger contrast by direct blue 1 (old color index (CI) no.518 or the CI Constitution no.24410) that uses as above-mentioned document is put down in writing, direct blue 4, directly blue 15, directly blue 22, directly blue 151 etc. low molecular dye and all fibers are dyeed.Though low molecular dye is adsorbed on all fibers, high molecular dye will replace low molecular dye because absorption affinity is strong.Its result, can the adsorbed polymer dyestuff fibrillation of (orange) partly be colored to orange, fiber finer bore portion that can not the adsorbed polymer dyestuff is become possibility by the situation of low molecular dye (blue dyes) dyeing, thereby can emphasize the fibrillation part.Low molecular dyestuff contain more than 51%, molecular weight is less than 10000, preferably less than 2000, more preferably 300～1500 molecule.
Of the present invention have the outside fibriilar paper pulp of flakey and be preferably, and in its 1 fiber unit, the area of the outside fibrillation part shown in the following formula 4 is than more than 20%, and the girth of the outside fibrillation part shown in the following formula 5 is than more than 1.5.It is big that the flakey outside fibrillation of paper pulp of the present invention and common fibrillation are compared its surface area, so these values can become greatly.
The area of outside fibrillation part is than (%)=[(area of outside fibrillation part)/(total surface area of the area+paper pulp fiber of outside fibrillation part)] * 100 (formulas 4)
The girth ratio of outside fibrillation part=(the full length on every side of the girth+paper pulp fiber of outside fibrillation part)/(the full girth of paper pulp fiber) (formula 5)
[effect]
Hand sense of touch and intensity about the thin paper that contains the paper pulp of handling through cavitation erosion all become good reason, are thought of as follows.
Generally, the hand sense of touch of thin paper will be improved when bulking intensity height (density is low), other surface smoothing.Yet as mentioned above, the paper pulp of handling through cavitation erosion is the paper pulp that outside fibrillation is promoted by specificity.Promptly, also put down in writing as WO2006/085598, owing to promoted outside fibrillation with the maintained former state of the stiffness of fiber, so compare with the former mechanical treatment of double disc refiner etc., intensity will improve when bulking intensity is equal, with intensity become equal mode modulate paper pulp then bulking intensity uprise.
In addition, when using the paper pulp of handling through cavitation erosion, the even surface of metallic roll etc. is transferred easily, the cunning so paper flattens easily.
Because these reasons think that the thin paper that contains the paper pulp of handling through cavitation erosion has the hand sense of touch and intensity all becomes good tendency.
Embodiment
Enumerate embodiment below and comparative example specifies the present invention, but the present invention can't be subjected to any qualification because of these.In addition, the % in embodiment, the comparative example, weight % is all represented in short of special qualification.The paper pulp of modulating in following embodiment and the comparative example has been carried out copying paper with two net type 3 laminar Yang Ji paper machines.Wrinkle is to have realized dry crepe by the speed difference that is provided with between drier and the spool.Short of special qualification, just become overlapping 2 of the mode in the outside (side that is touched by user's hand) with the face that contacts with the Yang Ji drier (YD face) of this thin paper body paper, the mode that becomes the outside with this face is carried out stacked, and will be contacted with the Yang Ji drier and by the dry face of the universe for handling in soft calender.In embodiment, comparative example, used all as paper pulp that to utilize the kraft pulp method be 84% bleached hardwood paper pulp from the broad leaf tree smear metal manufacturing of producing, through the Hunter whiteness of bleaching in Japan.
In addition, employed evaluation assessment such as following in embodiment and the comparative example.
＜hand sense of touch 〉
Carried out the evaluation of the sense of touch and the skin feel of hand by 10 test mans.Represent with following classification.
Very good: ◎, good: zero, common: △, poor: *
The determination method of＜TENSILE STRENGTH (vertically) 〉
TENSILE STRENGTH: on MD direction, CD direction sample is cut with the wide of 15mm, with 1 layer of TENSILE STRENGTH of measuring all directions, the value of being calculated by following formula is as TENSILE STRENGTH.TENSILE STRENGTH (g)=(MD TENSILE STRENGTH * CD TENSILE STRENGTH) 1/2
The determination method of＜bulking intensity 〉
Paper thick (mm) during with overlapping 10 layers of sample is as bulking intensity.
The mensuration of＜grammes per square metre 〉
Carry out according to JIS P 8124:1998 (ISO 536:1995).
The adjustment of＜cavitation erosion pulp treatment 〉
It is to carry out in cavitation erosion jet flow treating apparatus shown in Figure 1 that cavitation erosion is handled.Among Fig. 1, take in not shown pulp suspension (concentration 1.1%) in the sample jar 1, inserted temperature sensor 12 and agitator 13 in the sample jar 1.The pulp suspension of sample jar 1 will by be situated between by the pipe arrangement of regulation of plunger displacement pump 4 be directed to cavitation erosion jet unit 3 as jetting fluid.The bottom of cavitation erosion jet unit 3 is provided with nozzle 2, is described in more detail, and the pulp suspension of sample jar 1 sprays in jet unit 3 from nozzle 2.And then, be provided with water-supply valve 9, circulating valve 10 from the sidepiece of sample jar 1 to the pipe arrangement of jet unit 3, the pulp suspension in the sample jar 1 is supplied in the jet unit 3 as injected liquid.Be fitted with upstream side pressure-control valve 5 from the sidepiece of sample jar 1 to other pipe arrangements of nozzle 2.On the other hand, be fitted with downstream pressure-control valve 6 to other pipe arrangements of sample jar 1,, press for the injection of nozzle 2 and can adjust pulp suspension by adjusting each valve 5,6 from the top of jet unit 3.In addition, the approaching side of nozzle 2 is provided with upstream side Pressure gauge 7, and the top of jet unit 3 is provided with downstream Pressure gauge 8.Be provided with draining valve 11 in the bottom of jet unit 3.
[embodiment 1]
The raw material of the upper and lower in 3 layers such as modulated.The pulpboard of bleached hardwood kraft pulp is dissociated in the low concentration pulper, be adjusted into arbitrarily after the concentration, use cavitation erosion jet flow treating apparatus (nozzle diameter 1.5mm) shown in Figure 1, the pressure (nozzle upstream lateral pressure) of jetting fluid is made as 8MPa (the flow velocity 80m/ second of gauge pressure, jet flow), the pressure in the injected container (nozzle downstream pressure) is made as 0.4MPa (gauge pressure), carried out disposable by handling.Wherein, having used concentration as jetting fluid is the pulp suspension of 3 weight %, to the pulp suspension in the container (the concentration 3 weight %) processing of cavitating, Canadian Standard Freeness is made as 435mL, has obtained raw material A.Made thin paper by raw material A and middle level raw material B (pulpboard of bleached hardwood kraft pulp being dissociated Canadian Standard Freeness 500mL in the low concentration pulper).Become 16.6g/m with the grammes per square metre of copying the thin paper behind the paper
2Mode regulate.
[comparative example 1]
The replacement cavitation erosion is handled and is used double disc refiner that the raw material of the upper and lower has been carried out the making beating processing, and Canadian Standard Freeness is made as 470mL, has obtained raw material C.Made thin paper by raw material C and middle level raw material B.Become 16.6g/m with the grammes per square metre of copying the thin paper behind the paper
2Mode regulate.
[table 1]
| |
Comparative example 1 | |
| The hand sense of touch | △ | △ |
| Bulking intensity (mm/10 layer) | 0.88 | 0.91 |
| TENSILE STRENGTH (g) | 263 | 214 |
As shown in table 1, though the hand sense of touch in embodiment 1 and the comparative example 1 is equal, the TENSILE STRENGTH of embodiment 1 is higher than comparative example 1 about 20%.Compare with comparative example 1, the intensity of embodiment 1 is greatly improved, and the decline of bulking intensity is very little.
[embodiment 2]
The raw material of the upper and lower is carried out the processing identical with embodiment 1, Canadian Standard Freeness is set as 420mL, obtained raw material D.Add moistening paper power reinforcing agent 0.1% (with respect to the paper pulp absolute dry weight) to raw material D and middle level raw material B, made thin paper.Become 13.0g/m with the grammes per square metre of copying the thin paper behind the paper
2Mode regulate.
[comparative example 2]
The raw material of the upper and lower is carried out the processing identical with comparative example 1, Canadian Standard Freeness is set as 410mL, obtained raw material E.Add moistening paper power reinforcing agent 0.1% (with respect to the paper pulp absolute dry weight) to raw material E and middle level raw material B, made thin paper.Become 13.0g/m with the grammes per square metre of copying the thin paper behind the paper
2Mode regulate.
[table 2]
| |
Comparative example 2 | |
| The hand sense of touch | ◎ | ○ |
| Bulking intensity (mm/10 layer) | 0.78 | 0.73 |
| TENSILE STRENGTH (g) | 155 | 160 |
As shown in table 2, the hand sense of touch of embodiment 2 is better than comparative example 2, the basic equal extent of TENSILE STRENGTH.And then the bulking intensity of embodiment 2 is compared with comparative example 2 and has been increased about 7%.
[embodiment 3]
Raw material with the upper and lower, use cavitation erosion jet flow treating apparatus (nozzle diameter 1.5mm), the pressure (nozzle upstream lateral pressure) of jetting fluid is set as 8MPa (the flow velocity 80m/ second of gauge pressure, jet flow), the pressure in the injected container (nozzle downstream pressure) is set as 0.4MPa (gauge pressure), carried out outside 2 times (two pass) processing, carry out identical processing with embodiment 1, Canadian Standard Freeness is set as 390mL, has obtained raw material F.Add moistening paper power reinforcing agent 0.1% (with respect to the paper pulp absolute dry weight) to raw material F and middle level raw material B, made thin paper.Become 15.1g/m with the grammes per square metre of copying the thin paper behind the paper
2Mode regulate.
[comparative example 3]
The raw material of the upper and lower is carried out the processing identical with comparative example 1, Canadian Standard Freeness is made as 470mL, obtained raw material G.Add moistening paper power reinforcing agent 0.1% (with respect to the paper pulp absolute dry weight) to raw material G and middle level raw material B, made thin paper.Become 15.1g/m with the grammes per square metre of copying the thin paper behind the paper
2Mode regulate.
[table 3]
| |
Comparative example 3 | |
| The hand sense of touch | ◎ | ○ |
| Bulking intensity (mm/10 layer) | 0.85 | 0.87 |
| TENSILE STRENGTH (g) | 205 | 174 |
As shown in table 3, the hand sense of touch of embodiment 3 is better than comparative example 3, TENSILE STRENGTH high approximately 20%.Embodiment 3 and comparative example 3 specific tensile strength mutually are greatly improved, and the decline of bulking intensity is very little.
[embodiment 4]
Though as the raw material of the upper and lower used intensity high have the hand sense of touch not good tendency, bleached hardwood brown paper pulpboard (moisture rate of pulpboard is about 50 weight % (with respect to the paper pulp absolute dry weight)), carried out the processing identical in addition with embodiment 1, Canadian Standard Freeness is made as 440mL, has obtained raw material H.Add moistening paper power reinforcing agent 0.1% (with respect to the paper pulp absolute dry weight) to raw material H and middle level raw material B, made thin paper.Become 15.1g/m with the grammes per square metre of copying the thin paper behind the paper
2Mode regulate.
[comparative example 4]
Used as the raw material of the upper and lower and to have made the hand sense of touch become good bleached hardwood brown paper pulpboard (moisture rate of pulpboard is about 10 weight % (with respect to the paper pulp absolute dry weight)) easily usually, carry out the processing identical in addition with comparative example 1, Canadian Standard Freeness is made as 480mL, has obtained raw material I.Add moistening paper power reinforcing agent 0.1% (with respect to the paper pulp absolute dry weight) to raw material I and middle level raw material B, made thin paper.Become 15.1g/m with the grammes per square metre of copying the thin paper behind the paper
2Mode regulate.
[table 4]
| |
Comparative example 4 | |
| The hand sense of touch | ○ | ○ |
| Bulking intensity (mm/10 layer) | 0.79 | 0.84 |
| TENSILE STRENGTH (g) | 247 | 177 |
As shown in table 4, have the hand sense of touch not among the embodiment 4 of the bleached hardwood kraft pulp of good tendency in use, itself and the comparative example 4 that makes the hand sense of touch become good bleached hardwood brown paper pulpboard are easily compared, the hand sense of touch is also basic identical.In addition, the TENSILE STRENGTH of embodiment 4 is compared with comparative example 4 and has been improved 40% approximately.
Claims (4)
1. a household tissue paper is characterized in that, contains the impulsive force that is produced when the bubble that will generate because of cavitation erosion breaks and puts on the paper pulp that paper pulp fiber obtains.
2. a household tissue paper is the household tissue paper that is made of the ply of paper more than 2 layers, it is characterized in that, at least 1 layer ply of paper contains the impulsive force that is produced when the bubble that will generate because of cavitation erosion breaks and puts on the paper pulp that paper pulp fiber obtains.
3. household tissue paper according to claim 1 and 2 is characterized in that, the impulsive force that will be produced in the time of will breaking because of the bubble that cavitation erosion generates puts on the paper pulp that paper pulp fiber obtains, and has lepidiod outside fibrillation.
4. according to each described household tissue paper in the claim 1～3, it is characterized in that, the impulsive force that will be produced in the time of will breaking because of the bubble that cavitation erosion generates puts on the containing ratio of the paper pulp that paper pulp fiber obtains, and is that benchmark is 30～100 weight % with the absolute dry weight of full paper pulp.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008090510 | 2008-03-31 | ||
| JP2008-090510 | 2008-03-31 | ||
| PCT/JP2009/055988 WO2009122986A1 (en) | 2008-03-31 | 2009-03-25 | Tissue paper for domestic use |
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| Publication Number | Publication Date |
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| CN101952505A true CN101952505A (en) | 2011-01-19 |
| CN101952505B CN101952505B (en) | 2013-06-05 |
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| CN200980105855.8A Expired - Fee Related CN101952505B (en) | 2008-03-31 | 2009-03-25 | Tissue paper for domestic use |
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|---|---|
| US (1) | US20110011550A1 (en) |
| EP (1) | EP2287396B1 (en) |
| JP (1) | JP5542356B2 (en) |
| CN (1) | CN101952505B (en) |
| CA (1) | CA2717923C (en) |
| TW (1) | TWI500838B (en) |
| WO (1) | WO2009122986A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102578945A (en) * | 2012-02-21 | 2012-07-18 | 金红叶纸业集团有限公司 | Multi-layer living paper |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7967947B2 (en) | 2005-02-09 | 2011-06-28 | Nippon Paper Industries Co., Ltd. | Methods for beating pulp, methods for treating process waters, and methods for producing pulp and paper |
| CN101952505B (en) * | 2008-03-31 | 2013-06-05 | 日本制纸株式会社 | Tissue paper for domestic use |
| JP5463985B2 (en) * | 2010-03-17 | 2014-04-09 | 株式会社リコー | Image forming apparatus |
| JP5934497B2 (en) * | 2010-12-21 | 2016-06-15 | 花王株式会社 | Tissue paper |
| US9604388B2 (en) * | 2012-02-14 | 2017-03-28 | International Paper Company | Process for making composite polymer |
| US11124920B2 (en) | 2019-09-16 | 2021-09-21 | Gpcp Ip Holdings Llc | Tissue with nanofibrillar cellulose surface layer |
Family Cites Families (36)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3296065A (en) * | 1963-10-07 | 1967-01-03 | Monsanto Co | Paper products containing carboxylic acid esters and process for preparing such products |
| JPS4822701B1 (en) | 1969-07-07 | 1973-07-07 | ||
| GB1329409A (en) * | 1972-04-06 | 1973-09-05 | Wiggins Teape Research Dev Ltd | Method of and apparatus for manufacturing paper or other non- woven fibrous material |
| JPS4955908A (en) * | 1973-07-10 | 1974-05-30 | ||
| SU720085A1 (en) * | 1978-04-24 | 1980-03-05 | Украинское научно-производственное объединение целлюлозно-бумажной промышленности | Method of treating fibrous material |
| JPS60139897A (en) | 1983-12-28 | 1985-07-24 | ライオン株式会社 | Softener for paper |
| JPH01213491A (en) * | 1988-02-22 | 1989-08-28 | Eze Prod Inc | Apparatus and method for improving quality of paper obtained from secondary fiber |
| US4883564A (en) | 1988-06-01 | 1989-11-28 | Scott Paper Company | Creping device adhesive formulation |
| ES2050802T5 (en) | 1988-06-14 | 1997-10-01 | Procter & Gamble | SOFT TISSUE PAPER CONTAINING A NON-CATIONAL SURFACE. |
| ES2071658T3 (en) | 1988-06-14 | 1995-07-01 | Procter & Gamble | PROCEDURE FOR PREPARING SOFT TISSUE PAPER TREATED WITH NON-IONIC SURFACE. |
| ES2081303T3 (en) | 1988-06-14 | 1996-03-01 | Procter & Gamble | SOFT TISSUE PAPER. |
| CA1330381C (en) | 1989-01-19 | 1994-06-28 | Robert Stanley Ampulski | Process for preparing soft tissue paper treated with a polysiloxane |
| JPH0523262A (en) | 1991-07-25 | 1993-02-02 | Oji Paper Co Ltd | Softened pulp and tissue paper made from softened pulp |
| JPH0614848A (en) | 1992-07-01 | 1994-01-25 | New Oji Paper Co Ltd | Tissue paper |
| US5437766A (en) * | 1993-10-22 | 1995-08-01 | The Procter & Gamble Company | Multi-ply facial tissue paper product comprising biodegradable chemical softening compositions and binder materials |
| SE9401272L (en) * | 1994-04-14 | 1995-10-15 | Bo Nilsson | Use of ultrasound in papermaking |
| US5837099A (en) * | 1995-10-10 | 1998-11-17 | Shell Oil Company | Office wastepaper deinking process |
| CA2270424A1 (en) * | 1996-11-26 | 1998-06-04 | Kimberly-Clark Worldwide, Inc. | Method of making sanitary paper products from recycled newspapers |
| US6090241A (en) * | 1997-06-06 | 2000-07-18 | The Procter & Gamble Company | Ultrasonically-assisted process for making differential density cellulosic structure containing fluid-latent indigenous polymers |
| US6896768B2 (en) * | 2001-04-27 | 2005-05-24 | Fort James Corporation | Soft bulky multi-ply product and method of making the same |
| EP1556544A2 (en) * | 2002-11-01 | 2005-07-27 | International Paper Company | Method of making a stratified paper |
| US7727355B2 (en) * | 2003-07-31 | 2010-06-01 | Nippon Paper Industries Co., Ltd. | Methods for producing recycled pulp and methods for modifying pulp fiber surfaces using liquid jet cavitation |
| US7147752B2 (en) * | 2003-12-19 | 2006-12-12 | Kimberly-Clark Worldwide, Inc. | Hydrophilic fibers containing substantive polysiloxanes and tissue products made therefrom |
| FI20040833A0 (en) * | 2004-06-16 | 2004-06-16 | Kemira Oyj | Procedure for decolourizing recycled paper |
| JP4546936B2 (en) * | 2005-02-09 | 2010-09-22 | 日本製紙株式会社 | Pulp beating method |
| CN100587156C (en) * | 2005-02-09 | 2010-02-03 | 日本制纸株式会社 | Method for beating pulp |
| US7967947B2 (en) * | 2005-02-09 | 2011-06-28 | Nippon Paper Industries Co., Ltd. | Methods for beating pulp, methods for treating process waters, and methods for producing pulp and paper |
| US8123909B2 (en) * | 2005-11-04 | 2012-02-28 | Nippon Paper Industries Co., Ltd. | Apparatus for treating papermaking feedstock |
| US8012312B2 (en) * | 2006-04-21 | 2011-09-06 | Nippon Paper Industries Co., Ltd. | Cellulose-based fibrous materials |
| US8052837B2 (en) * | 2006-06-12 | 2011-11-08 | Thiele Kaolin Company | Deinking of waste paper |
| JP2008038311A (en) * | 2006-08-09 | 2008-02-21 | Nippon Paper Industries Co Ltd | Method for beating pulp |
| JP2009197371A (en) * | 2008-02-25 | 2009-09-03 | Nippon Paper Industries Co Ltd | Method for producing paper and the paper |
| JP5248158B2 (en) * | 2008-03-25 | 2013-07-31 | 日本製紙株式会社 | Pulp processing method |
| JP2009235648A (en) * | 2008-03-28 | 2009-10-15 | Nippon Paper Industries Co Ltd | Method for producing pulp |
| CN101952505B (en) * | 2008-03-31 | 2013-06-05 | 日本制纸株式会社 | Tissue paper for domestic use |
| KR100957650B1 (en) * | 2009-02-13 | 2010-05-12 | 주식회사 쌍용씨앤비 | Manufacturing method of tissue provided old corrugated container with source |
-
2009
- 2009-03-25 CN CN200980105855.8A patent/CN101952505B/en not_active Expired - Fee Related
- 2009-03-25 US US12/921,485 patent/US20110011550A1/en not_active Abandoned
- 2009-03-25 CA CA2717923A patent/CA2717923C/en not_active Expired - Fee Related
- 2009-03-25 EP EP09726597.9A patent/EP2287396B1/en not_active Not-in-force
- 2009-03-25 WO PCT/JP2009/055988 patent/WO2009122986A1/en active Application Filing
- 2009-03-26 JP JP2009076372A patent/JP5542356B2/en not_active Expired - Fee Related
- 2009-03-31 TW TW098110740A patent/TWI500838B/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102578945A (en) * | 2012-02-21 | 2012-07-18 | 金红叶纸业集团有限公司 | Multi-layer living paper |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2287396A4 (en) | 2013-03-27 |
| WO2009122986A1 (en) | 2009-10-08 |
| EP2287396B1 (en) | 2016-03-23 |
| TWI500838B (en) | 2015-09-21 |
| CA2717923C (en) | 2017-04-25 |
| CA2717923A1 (en) | 2009-10-08 |
| US20110011550A1 (en) | 2011-01-20 |
| CN101952505B (en) | 2013-06-05 |
| JP5542356B2 (en) | 2014-07-09 |
| JP2009263844A (en) | 2009-11-12 |
| TW201009165A (en) | 2010-03-01 |
| EP2287396A1 (en) | 2011-02-23 |
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