CN110344280A - Paper - Google Patents
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- CN110344280A CN110344280A CN201910256364.9A CN201910256364A CN110344280A CN 110344280 A CN110344280 A CN 110344280A CN 201910256364 A CN201910256364 A CN 201910256364A CN 110344280 A CN110344280 A CN 110344280A
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- Prior art keywords
- paper
- fibre
- chemical fibre
- fiber
- olefin
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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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/14—Polyalkenes, e.g. polystyrene polyethylene
-
- 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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/18—Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylonitriles
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/66—Salts, e.g. alums
-
- 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
-
- 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
- D21H27/10—Packing paper
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
The present invention provides a kind of paper, has both had shaggy thick sense of touch, it may have the property of papery softness.The non-olefinic system chemical fibre and olefin-based synthetic fibers that paper of the invention contains natural fiber, fibre diameter is 5.0 μm or more, the fibre structure of the non-olefinic system chemical fibre have 2 points or more of inflection point.Preferably in the paper, especially with respect to whole fibers contained by paper, non-olefinic system chemical fibre is contained with the ratio of 10~40 mass % or the olefin-based synthetic fibers are contained with the ratio of 10~40 mass %.Furthermore it is preferred that being non-olefinic system chemical fibre with every 25mm2Paper be surface that 15 or more ratios are present in paper.
Description
Technical field
Shaggy thick sense of touch and soft paper are had both the present invention relates to a kind of.
Background technique
Bristol paper, package paper, facial tissue, printing, patch case paper, makeups corrugated board paper, various processing are used
Paper etc. imposes the paper of decoration and mostly also assigns feature in sense of touch to embody feeling of high class and give the impression different with other paper.
In order to assign paper unique sense of touch, bumps generally are set on the surface of paper, it has been known that there is the sides for imposing Embossing processing as its means
Method and method as the substance other than the natural fiber of raw material is added to paper.On the other hand, it about above-mentioned purposes, is rolling over
It is curved, pack, be laminated, letter processed, other processing when require paper appropriateness softness.
As the method for the sense of touch for assigning paper, for example, being disclosed in patent document 1 as the method for imposing Embossing processing
Following method: the written of certain specified particular is shown with to surface and imposes Embossing processing with paper, to makes the clothes of written publisher
Trade mark, trade mark or any one or more of combination of house mark be engaged in the multiple relief patterns of surface presentation.In addition, conduct
The method as the substance other than the natural fiber of raw material is added to paper, is proposed in patent document 2 in the coating of the surface of paper
Big and the particle of circle invention.It is easy especially by the substance other than the raw fibre for assigning paper as patent document 2
Shaggy thick sense of touch is obtained to have had long been known to everyone.
[existing technical literature]
[patent document]
[patent document 1] Japanese Patent Laid-Open 6-17400 bulletin
[patent document 2] Japanese patent special table 2005-511912 bulletin
Summary of the invention
Problems to be solved by the invention
In the mode for using particle as patent document 2 to assign the shaggy thick sense of touch of paper, it can obtain
The unique sense of touch different from Embossing processing, but potential the problem of falling off from paper surface, and there are problems that papery is hardened.This
Outside, it also confirmed following problem in the research of present inventor et al.: when replacing particle using the few chemical fibre of the problem of falling off,
Shaggy thick sense of touch can not be obtained, and papery is also hardened.If papery is hardened, also can difference depending on the application and rolling over
It is not suitable in the case where the various processing such as curved, packaging, printing, patch number, patch case.
Therefore the subject of the invention is to provide a kind of paper, have both had shaggy thick sense of touch, it may have papery is soft
Property.
Technical means to solve problem
The present invention be a kind of paper, containing natural fiber, fibre diameter be 5.0 μm or more non-olefinic system chemical fibre,
And olefin-based synthetic fibers, the fibre structure of the non-olefinic system chemical fibre have 2 points or more of inflection point.
The preferably described non-olefinic system chemical fibre is in every 25mm2There are 15 or more on paper surface.
Preferably relative to whole fibers contained by paper, the non-olefinic system is contained with the ratio of 10~40 mass %
Fiber is learned, or the olefin-based synthetic fibers are contained with the ratio of 10~40 mass %.
Invention effect
Paper of the invention can assign paper thick sense of touch by using the non-olefinic system chemical fibre of the inflection point with 2 points or more,
And the effect for making papery softness is obtained and containing olefin-based synthetic fibers.In this way, can preferably be used for such as bristol paper,
Package paper, facial tissue, printing, patch case paper, makeups corrugated board paper, various processing paper etc. impose the paper of decoration
Purposes.
Detailed description of the invention
Fig. 1 is a part for paper of the invention, will use real state after the coloring of non-olefinic system chemical fibre contained by surface
Photo made of multiplying power amplification of the microscope with 50 times.
Specific embodiment
Paper of the invention contains natural fiber.As natural fiber, mainly using coniferous tree dry kraft pulp (NBKP),
Broad leaf tree dries kraft pulp (LBKP), coniferous tree dries the Wood Bleachings chemical pulps such as sulfite pulp (NBSP), according to
Need will use the mechanical pulps such as photogrammetry pulp mill (GP), thermomechanical pulp (TMP), chemical thermomechanical pulp (BCTMP)；Fiber crops, bamboo,
The non-wood pulps such as straw, mestha, D.giraldii Nitsche, paper mulberry, kapok；And old paper paper pulp.In the present invention, these can be used alone
One of natural fiber is applied in combination two or more.
Natural fiber used in the present invention Canadian standard freeness (Canadian specified in JIS P8121
Standad Freeness) it is preferably 100~700mL, and then preferably 150~650mL, more preferably 200~600mL.Filter
Water degree is the value for indicating the degree of beating (mechanical mashing, the processing ground in the presence of water) of paper pulp, also referred to as beating
Degree, the degree of the smaller beating of the value of usual freeness is stronger and beating caused by the damage of fiber carry out fibril biglyyer
Dimensionization.If the freeness of natural fiber, in the range, raising of low basis weight, liquid permeability of package paper etc. is each
The balance of characteristic can become good.The adjustment of freeness, the i.e. adjustment of the beating degree of paper pulp can be filled by appropriate adjustment beating
Type and treatment conditions (pulp density, temperature, pressure, revolution, the shape of the blade, number of processes etc.) Lai Jinhang set.As
Beating device can use the beating machines such as well known device, such as beater, PFI grinding machine, single-deck grinding machine, double disc refiner, except this with
It outside also can be using dispersion machines such as dispersion and crushing used ball mill, the ball mills (dyno mill) of pigment etc..
Relative to the unit mass (weight) for the whole fibers for constituting paper, natural fiber containing ratio is preferably 30~90 matter
Measure %, more preferably 40~80 mass %.If the containing ratio of natural fiber is low, the intensity of paper may be reduced, if contained
There is rate to get higher, is then likely difficult to play the effect of following non-olefinic system chemical fibre and olefin-based synthetic fibers.
In the present invention, the non-olefinic system chemical fibre for the use of fibre diameter being 5.0 μm or more.Fibre diameter is bigger, more
Can texture of acquisition when being touched with hand, when the fibre diameter is less than 5.0 μm will be unable to obtain relative to this rough
Thick sense of touch.The fibre diameter of non-olefinic system chemical fibre is preferably 5.5 μm or more, and then preferably 6.0 μm or more, more excellent
It is selected as 7.0 μm or more, particularly preferably 10 μm or more.In addition, the fibre diameter of non-olefinic system chemical fibre is preferably 60 μ
M hereinafter, be preferably 50 μm hereinafter, more preferably 40 μm or less in turn.
Non-olefinic system chemical fibre is approximately separated into organic series fiber and inorganic series fiber, and can use.Organic system is fine
Dimension has regenerated fiber, semisynthetic fibre, synthetic fibers.As regenerated fiber, such as staple fibre, cuprammonium rayon, richness can be enumerated
The fibrous materials such as strong fiber.As semisynthetic fibre, acetate, triacetate, protein copolymer fiber can be enumerated
(promix) fibrous materials such as.In addition, nylon, polyester, acrylic acid, polyvinyl chloride, Polyurethane etc. can be illustrated as synthetic fibers
Fibrous material.Moreover, synthetic fibers have nylon, polyester fiber polyacrylonitrile fibre, acrylic fiber, vinylon, high function fine
(para- system Fypro, polyacetal fibre etc.) etc. is tieed up, their spinning, yarn can be illustrated.It, can example as inorganic series fiber
Show the metallic fibers such as glass fibre, carbon fiber, ceramic fibre, stainless steel fibre.Non-olefinic system chemical fibre is synthesized with olefin-based
Fiber is different.
In the present invention, the especially described non-olefinic system chemical fibre has 2 points or more inflection points using its fibre structure
's.By the inflection point with 2 points or more, it can assign paper thick sense of touch.Here, so-called " inflection point ", which refers to, is considered as two dimension for fibre structure
Symbol (positive or negative) the changed point of second dervative (also referred to as second derived function) when curve.Therefore, fibre structure is straight
Linear person and quadratic function curve person do not meet.For example, being shown in the non-olefinic system chemical fibre 2 of paper 1 shown in Fig. 1
Representative inflection point 3.This chemical fibre can be bent in two dimension, can also be bent in three-dimensional.
The method for observing the non-olefinic system chemical fibre and its fibre diameter that are present in paper is not particularly limited, for example,
Paper can be dyed with dyestuff using the identification for colouring the chemical fibre especially, later with real state microscope with 50 times or so of times
Rate is observed.With dyestuff, it is preferable to use " Kayastain Q ", BOKEN quality evaluation machines that for example Japanese chemical drug manufactures for identification
It is configured the commercially available products such as " BOKENSTAIN " made.Fibre diameter is to measure the linearly position of the fiber through dyeing.
The method for obtaining the above-mentioned non-olefinic system chemical fibre with 2 points or more inflection points is not particularly limited, for example,
It can be by beating non-olefinic system chemical fibre come contrary flexure.Beating can mix progress with natural fiber, can also be non-olefinic system chemistry
Fiber individually carries out.Or it can also be in advance using the fiber with the point of inflexion.For example, the acrylic fibers for imposing bulk processing can be used
Dimension etc..
In the present invention, non-olefinic system chemical fibre is in every 25mm2Radical existing for paper surface be preferably 15 with
On, and then preferably 25 or more, more preferably 35 or more.By making non-olefinic system chemical fibre with more than a certain amount of
Ratio exists, and can be easy to get thick sense of touch.In addition, about non-olefinic system chemical fibre there are ratio, every 25mm2Paper is excellent
150 are selected as hereinafter, being in turn preferably 120 or less.If it exceeds 150, then possible papery is difficult to limber up, and surface is strong
Degree reduces.
Paper of the invention contains olefin-based synthetic fibers.Following effect: energy can be obtained by assigning olefin-based synthetic fibers
So that papery is limbered up, and the hardening of paper caused by non-olefinic system chemical fibre can be mitigated.It is synthesized as olefin-based is constituted
The olefin-based resin of fiber can be enumerated such as polyethylene, polypropylene.From the point of view of ensuring the viewpoints such as enough paper power from practical,
Preferably olefin-based synthetic fibers pass through fibrillation processing in the same manner as natural fiber.The fibrillation of olefin-based synthetic fibers
It can be carried out in identical with the fibrillation of natural fiber method.To the beating of olefin-based synthetic fibers used in the present invention
Degree is not particularly limited, but is preferably set to 100~700mL, and then is preferably set to 300~600mL.In addition, olefin-based synthesis is fine
The fibre length of dimension is preferably 0.1~2.0mm, and then preferably 0.5~1.5mm.If the fiber of olefin-based synthetic fibers is long
In the range, then the dehydration of the wet end in copy paper process when manufacturing package paper using wet type copy paper method can be mentioned degree
Height, thus watermark portion easy to form.
As in the present invention it is preferable to use commercially available olefin-based synthetic fibers, Mitsui Chemicals Inc. can be enumerated
The SWP (registered trademark) of manufacture.The SWP is the olefin-based synthetic fibers through fibrillation.
It, can also be as needed containing except natural fiber, non-olefinic system chemical fibre and olefin-based in paper of the invention
Other compositions other than synthetic fibers, for example, the protein such as wool, silk, animal hair series fiber, starch, polyacrylamide, polyamine
The paper power reinforcing agent such as polyamide epichlorohydrin or adhesive agent, sizing agent, filler, drainage yield enhancer, resistance to hydrated agent, adhesive agent,
Usually used one or more of additive in the wet types copy paper method such as defoaming agent, slime-control agent.
In the present invention, as long as the allotment ratio of the non-olefinic system chemical fibre and olefin-based synthetic fibers is suitably adjusted
It is whole, for example, it is preferable to for the quality (weight) relative to the whole fibers contained in paper, the allotment of non-olefinic system chemical fibre
Ratio is 10~40 mass % or the allotment ratio of olefin-based synthetic fibers is 10~40 mass %.If the non-olefinic system
The blending amount for learning fiber or olefin-based synthetic fibers is more than 40 mass %, then the surface strength equal strength of paper may die down.This
Outside, if the blending amount of non-olefinic system chemical fibre possibly can not obtain shaggy sense of touch less than 10 mass %,
In addition, if the blending amount of olefin-based synthetic fibers is less than 10 mass %, then papery may be hardened.
The beating of each fiber contained by about paper of the invention, can be to paper made of respectively independent dispersion or mixing dispersion
Expect that (slurry) is implemented using beating machine well known to beater, disc mill etc. and by well-established law.
Paper of the invention contains its other than the fiber in the range of not impairing regulation performance of the invention
His fiber.In addition, paper of the invention contains its other than fiber in the range of not impairing regulation performance of the invention
His ingredient, for example, can enumerate adhesive, mould inhibitor, various paper grade (stock) fillers, wet paper power reinforcing agent, dry paper power reinforcing agent,
Sizing agent, colorant, adhesive agent, yield enhancer, slime-control agent, defoaming agent etc., can be used alone one of they or
It is used in combination of two or more.
Paper of the invention can be manufactured using well known copy paper method.It is also implementable to press and smooth behind the manufacture midway of copy paper or manufacture
The working processes such as light processing, super calender process, soft calendaring processing, embossing.
To paper of the invention quantitative, there is no particular restriction, if depending on the application with situation appropriate adjustment.But if
Softness and intensity face in view of papery, then preferably 10~200g/m2, and then preferably 20~180g/m2, more preferably 30
~150g/m2.In addition, the thickness to paper is similarly not particularly limited, preferably 0.030~0.200mm, and then preferably
0.040~0.180mm, more preferably 0.050~0.160mm.
Paper of the invention can be coloured to arbitrary color.In addition, paper of the invention can be single layer structure, it can also be more to be laminated
Multilayered structure made of a layer.When for multilayered structure, preferably each layer is integrally formed and being copied.
Paper of the invention has the softness of papery.As the index of the softness, according to JAPAN TAPPINo.40's
Gurley rigidity is preferably 5.8mN hereinafter, being in turn preferably 5.5mN hereinafter, more preferably 5.2mN is hereinafter, still more preferably
For 5.0mN or less.If Gurley rigidity is more than a certain amount of value, papery can be hard, different depending on the application, bending, packaging,
It is possible that undesirable condition in the case where printing, patch number, patch case, various processing.
Embodiment
Hereinafter, embodiment will be enumerated in order to specifically describe the present invention, but the present invention is not exposed to the limit of following embodiment
System.
[embodiment 1]
Respectively with the mass ratio allotment coniferous tree of 60:20:20 dries kraft pulp, shearing length is 5.0mm and fiber is straight
Acrylic fiber (K701-3.3TS50 of Japanese Exlan company manufacture), olefin-based synthetic fibers (three wells of the diameter for 18.0 μm
Learn the SWPEST2 of limited liability company's manufacture), and beating is carried out in such a way that freeness is 410mL by double disc refiner.Then
To add the agent of paper power (Polystron117 of Huang Chuan chemical company manufacture) relative to the ratio that raw material is 6.0 mass %, with phase
The sizing agent AD1602 of manufacture (starlight PMC) is added for the ratio that raw material is 1.0 mass %, with relative to raw material for 5.0 matter
The ratio for measuring % adds aluminum sulfate, and uses thus obtained slurry, obtains paper using gage paper machine.
[embodiment 2~4 and comparative example 1~3]
The allotment ratio (quality %) according to shown in following table 1 uses each fiber, in addition to this with same as Example 1
Mode obtains paper.
[performance evaluation]
It is evaluated using paper of the following methods to each embodiment and comparative example.The results are shown in Table 1 for it.
< is according to monitoring test to the evaluation > of the texture on paper surface
The feeling when surface of the paper of A4 size is integrally touched with finger using 20 observers of following benchmark evaluation.Always
Points 48 points or more are 〇, and total score is △ at 20~47 points, 19 points it is below for ×, △ or more is qualification.
Excellent (3 points)=shaggy texture is experienced sufficiently strongly
Good (1 point)=slightly experience shaggy texture
The texture on unqualified (0 point)=can not experience surface
Evaluation > of the < to the flexibility of papery
Gurley rigidity of the measurement according to JAPAN TAPPI No.40.Measuring machine is manufactured using Kumagai Riki Kogyo
Gurley rigidity tester.Gurley rigidity is that the following are qualifications by 5.5mN.
The observation method > of < non-olefinic system chemical fibre
As the identification dyestuff of non-olefinic system chemical fibre, " the Kayastain Q " that is manufactured using Japanese chemical drug is by paper
Padding, the inflection point using real state microscope (multiplying power is 50 times) observation in 5mm square with 2 points or more later
The number and its fiber width of non-olefinic system chemical fibre.
Table 1
Learnt by table 1: the paper of embodiment has shaggy texture and flexibility.Especially if addition non-olefinic system
Then there is the tendency that papery is hardened in chemical fibre, so that papery is limbered up by being added to it olefin-based synthetic fibers.As comparative example
1 like that when not adding olefin-based synthetic fibers, and papery is hardened.In addition, not adding non-olefinic system as comparative example 2 and 3
The system for learning fiber, does not obtain desired sense of touch.
Symbol description
1 paper
2 non-olefinic system chemical fibres
3 inflection points.
Claims (4)
1. a kind of paper contains natural fiber, the non-olefinic system chemical fibre that fibre diameter is 5.0 μm or more and olefin-based synthesis
Fiber, the fibre structure of the non-olefinic system chemical fibre have 2 points or more of inflection point.
2. paper according to claim 1, non-olefinic system chemical fibre is in every 25mm2There are 15 or more on paper surface.
3. paper according to claim 1 or 2, relative to whole fibers contained by paper, with mass percent be 10%~
40% ratio contains non-olefinic system chemical fibre.
4. paper according to claim 1 or 2, relative to whole fibers contained by paper, with mass percent be 10%~
40% ratio contains the olefin-based synthetic fibers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018072754 | 2018-04-04 | ||
| JP2018-072754 | 2018-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110344280A true CN110344280A (en) | 2019-10-18 |
Family
ID=68174110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910256364.9A Pending CN110344280A (en) | 2018-04-04 | 2019-04-01 | Paper |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7239364B2 (en) |
| CN (1) | CN110344280A (en) |
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|---|---|---|---|---|
| US3674621A (en) * | 1969-02-25 | 1972-07-04 | Mitsubishi Rayon Co | Process of making a sheet paper |
| CN1535343A (en) * | 2001-07-24 | 2004-10-06 | 日本制纸株式会社 | Bulky pulp, method for production thereof and converted paper or multi-ply paper using bulky pulp |
| US20060201644A1 (en) * | 2003-02-07 | 2006-09-14 | Mitsui Chemicals, Inc. | Ink jet printing paper |
| WO2007139118A1 (en) * | 2006-05-31 | 2007-12-06 | Daio Paper Corporation | Heat-sealable wrapping paper and heat-sealed packages |
| WO2009041093A1 (en) * | 2007-09-25 | 2009-04-02 | Tradik Co., Ltd. | Fiber laminate sheet, artificial leather utilizing the same and synthetic fiber paper for use therein |
| US20090308551A1 (en) * | 2008-06-11 | 2009-12-17 | Kokko Bruce J | Absorbent sheet prepared with papermaking fiber and synthetic fiber exhibiting improved wet strength |
| WO2015040589A1 (en) * | 2013-09-23 | 2015-03-26 | Arjowiggins Security | Paper comprising fibrillated synthetic fibres |
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| US4036679A (en) * | 1975-12-29 | 1977-07-19 | Crown Zellerbach Corporation | Process for producing convoluted, fiberized, cellulose fibers and sheet products therefrom |
| JPS61254396A (en) * | 1985-05-08 | 1986-11-12 | Asahi Chem Ind Co Ltd | Tissue paper for thermal stencil original paper and production thereof |
| JPH026699A (en) * | 1988-06-25 | 1990-01-10 | Shinfuji Seishi Kk | Pattern paper |
| JP2555177B2 (en) * | 1988-11-21 | 1996-11-20 | 株式会社クラレ | Bulky paper and manufacturing method thereof |
| JPH07236653A (en) * | 1994-02-28 | 1995-09-12 | Mitsui Petrochem Ind Ltd | Absorber and its manufacture |
| JP2001003293A (en) | 1999-06-17 | 2001-01-09 | Lintec Corp | Mixed paper and laminated paper |
| JP5369025B2 (en) | 2010-03-02 | 2013-12-18 | 三菱製紙株式会社 | Nonwoven fabric for exhibition |
| JP5836835B2 (en) | 2012-02-21 | 2015-12-24 | ユニ・チャーム株式会社 | Nonwoven fabric and method for producing nonwoven fabric |
| CN103100264B (en) | 2013-02-06 | 2015-03-11 | 吕凯 | Battery and capacitor diaphragm filter material formed by wet nonwoven fabrics and preparation method of filter material |
-
2019
- 2019-03-25 JP JP2019055836A patent/JP7239364B2/en active Active
- 2019-04-01 CN CN201910256364.9A patent/CN110344280A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3674621A (en) * | 1969-02-25 | 1972-07-04 | Mitsubishi Rayon Co | Process of making a sheet paper |
| CN1535343A (en) * | 2001-07-24 | 2004-10-06 | 日本制纸株式会社 | Bulky pulp, method for production thereof and converted paper or multi-ply paper using bulky pulp |
| US20060201644A1 (en) * | 2003-02-07 | 2006-09-14 | Mitsui Chemicals, Inc. | Ink jet printing paper |
| WO2007139118A1 (en) * | 2006-05-31 | 2007-12-06 | Daio Paper Corporation | Heat-sealable wrapping paper and heat-sealed packages |
| WO2009041093A1 (en) * | 2007-09-25 | 2009-04-02 | Tradik Co., Ltd. | Fiber laminate sheet, artificial leather utilizing the same and synthetic fiber paper for use therein |
| US20090308551A1 (en) * | 2008-06-11 | 2009-12-17 | Kokko Bruce J | Absorbent sheet prepared with papermaking fiber and synthetic fiber exhibiting improved wet strength |
| WO2015040589A1 (en) * | 2013-09-23 | 2015-03-26 | Arjowiggins Security | Paper comprising fibrillated synthetic fibres |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019183367A (en) | 2019-10-24 |
| JP7239364B2 (en) | 2023-03-14 |
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Application publication date: 20191018 |