CN106283826A - Paper pulp fiber compositions - Google Patents
Paper pulp fiber compositions Download PDFInfo
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- CN106283826A CN106283826A CN201510305694.4A CN201510305694A CN106283826A CN 106283826 A CN106283826 A CN 106283826A CN 201510305694 A CN201510305694 A CN 201510305694A CN 106283826 A CN106283826 A CN 106283826A
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-
- 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
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
- A47K10/00—Body-drying implements; Toilet paper; Holders therefor
- A47K10/16—Paper towels; Toilet paper; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
-
- 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
- D21H17/02—Material of vegetable origin
-
- 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
- D21H5/00—Special paper or cardboard not otherwise provided for
Abstract
Comprise the paper pulp fiber compositions of Acacia mangiumwilld fiber and crassicarpa fiber.
Description
Technical field
Present invention relates in general to paper pulp fiber compositions.The invention still further relates to preparation by above-mentioned paper
The paper (paper sheet) of pulp fibres compositions formation and the method for the scraps of paper (tissue sheet).
Background
Paper pulp is for producing such as toilet paper, napkin, medicated napkin and other absorption/hygienic article
The common raw materials of paper (tissue).Generally, depending on the grade of paper, paper is by 50% to 90%
Bardwood pulp and 10% to 50% softwood pulp make.When preparing paper (tissue paper),
The properties of paper pulp material and the such as pliability, smoothness of the paper of gained, structure, impermeable
The desirable properties of lightness, color etc. is relevant.Additionally, the behavior in service (runnabilty) in preparation process
Also it is important with efficiency.Therefore, the main cost driver of paper manufacture be paper pulp (hardwood and cork),
Chemicals and effectiveness (electricity, energy, water etc.).
Due to the fiber properties of sallee (Acacia) paper pulp, it provides preferably for paper
Pliability.This may be owing to higher fibre number compared with Eucalyptus and other bardwood pulps
(polulation) (fiber count at a given weight), higher fibrous fracture index.Acacia
Plant also has lower water retention value (WRV), and it contributes to less moisture holding capacity, and this makes
The heat needed for water or energy in evaporation Yankee exsiccator are less, thus reach target and be dried
Degree.
Additionally, compared with Eucalyptus and other bardwood pulps, sallee paper pulp initial strong
Spend the highest.By having higher initial strength, can be by fibre under acceptable intensity property
Dimension is refined to be minimized to produce good bulkiness (bulkiness) and pliability.By reducing fiber
Refined, therefore can reduce electricity needs, thus cause relatively low production cost.If it is desirable,
The other method improving intensity is the expensive fiber by adding such as cork.Therefore, Acacia farnesiana Willd.
The higher initial strength of platymiscium fiber potentially results in the use reducing cork.
But, although using sallee paper pulp to have above-mentioned advantage, but Acacia is planted
Thing paper pulp has the adhesion of (floating) difference on Yankee exsiccator.This problem causes difference
Machine run performance and machine efficiency, cause producing low due to the wrinkling difference of Yankee exsiccator
The paper of quality.Therefore, in high-speed paper machine device, the amount of the sallee of use is necessarily
Limited and be generally arranged at 35%.Increase sallee paper pulp usage amount to being more than
35% generally will cause above-mentioned behavior in service and quality problems.In order to improve and Yankee exsiccator
Adhesion, special type has been adhered to chemicals and has been added in Yankee dryer surface, or
On manufacturing apparatus made of paper, sallee paper pulp is processed before using.But, from economy and efficiency
From the viewpoint of, it is not desired to these other chemicals/process.
Need badly and the paper pulp fiber compositions overcoming or at least improving one or more disadvantages mentioned above is provided.
Need badly and the method preparing paper overcoming or at least improving one or more disadvantages mentioned above is provided.
General introduction
According to first aspect, it is provided that comprise Acacia mangiumwilld fiber and the paper pulp of crassicarpa fiber
Fiber composition.
Advantageously, paper pulp fiber compositions can be made up of the sallee kind of 100%, with
Time there is in paper pulp fiber compositions low lipotropy content.Paper pulp fiber compositions can be not required to
Pretreatment or ferment treatment is wanted to reduce the lipotropy content in paper pulp fiber compositions.
Paper pulp fiber compositions can have the adhesion good with Yankee dryer surface and not
Special type is needed to adhere to chemicals.
Paper pulp fiber compositions can have high microsteping conquassation (collapsibility), and it causes paper pulp
The free water content reduced in fiber composition.This may result in reduction Yankee exsiccator required
The amount of drying energy.
According to second aspect, it is provided that the method preparing paper, it include be dried comprise Ma Zhanxiang
Think the paper pulp fiber compositions of fiber and crassicarpa fiber to form the step of the paper being dried.
Described method can optionally be got rid of pretreating paper pulp fiber composition or can get rid of to paper pulp fiber group
Compound added adhesive agent chemicals or the enzyme of a large amount.
According to the third aspect, it is provided that by comprising Acacia mangiumwilld fiber and the paper of crassicarpa fiber
The scraps of paper that pulp fibres compositions is formed, it has at least 13cm3The paper bulk properties of/g.
Advantageously, can be met or exceeded by consumer opaque for paper pliability, paper for the described scraps of paper
Degree and the expectation of paper intensity, fully freely can use in Toilet system simultaneously.
Definition
Following word used herein and term should have a specified implication:
Term " low-polarity component " should be construed broadly to include wax, fatty acid, alkanol (example
Such as white beeswax and/or such as C24-C28The long-chain OH compound of-OH and/or there are 90 DEG C or higher
High-melting-point alkanol), hydroxyl extract, fatty alcohol, triglyceride, diglyceride, sterols,
Sterol ester etc..Fatty acid can be such as C16-C18Fatty acid, C18-C28Fatty acid and/or C20-C26
Fatty acid there is C4-C30The fatty acid of alkyl.Fatty acid can be saturated or unsaturated.
Part or all of fatty acid can be combined with other molecules of such as triglyceride or connects.Its
His example includes the tetradecane (Semen Myristicae, C14)；Hexadecane (Palmic acid, C16)；9,12-18 carbon
Diene (linoleic acid, C18)；7-18 carbon diene (C18)；Heptadecane (heptadecane, C17) or ten
Eight alkanoic acids (stearic acid, C18)；Behenic acid (behenic acid, C22)；Lignoceric acid (24
Alkanoic acid, C24)；Hexacosoic acid (cerinic acid, C26)；And/or pentadecanoic acid (C25).Lipotropy contains
Amount can the amount of non-polar solvent extract Detection and Extraction by using such as dichloromethane measure.
Therefore, term " low-polarity component " may also include lipophilic extract.
Word " substantially " is not excluded for the compositions of " fully ", such as substantially free Y
Y can be entirely free of.If desired, word " substantially " can be omitted from the definition of the present invention.
Unless specified otherwise herein, term " comprises " and " including " and grammatical variants intention representative " opening thereof
Formula " or " contained " language makes them not only include, and cited key element also allows for including additionally
The key element do not enumerated.
As used herein, in the linguistic context of formulation components concentration, term " about " generally means that institute
The +/-3% of the +/-4% of the +/-5% of train value, more generally values listed, more generally values listed, more logical
Often, the +/-2% of values listed, the even more generally +/-1% of values listed, and even more generally listed
The +/-0.5% of value.
In the disclosure, with range format, some embodiments can be disclosed.Should be appreciated that scope
Describing only for convenient and succinct and be not necessarily to be construed as the absolute limit to open scope of form
System.Therefore, the description of scope should be considered to have specifically disclosed likely subrange and
Single numerical value in the range of described.Such as, the description of the scope of such as 1 to 6 should be considered tool
Have such as 1 to 3,1 to 4,1 to 5,2 to 4,2 to 6,3 to 6 etc. specifically disclosed
Subrange and described in the range of single numerical value, such as, 1,2,3,4,5 and 6.No matter
The width of scope how, is all applicable to foregoing description.
The most also can briefly and be generally described some embodiment.Model is not yet being disclosed
Enclose each interior concrete kind and the next group also forms the part of the disclosure.This includes embodiment party
The general description of case, proviso or negativity limit will get rid of any object from upper classification,
Whether the content no matter got rid of is specifically enumerated herein.
The detailed disclosure of embodiment
Exemplary, the non-limiting embodiment of paper pulp fiber compositions disclosed below.Paper pulp
Fiber composition can comprise Acacia mangiumwilld fiber and crassicarpa fiber.Paper pulp fiber compositions can
It is made up of Acacia mangiumwilld fiber and crassicarpa fiber.Paper pulp fiber compositions can be substantially by horse
Account for yearning between lovers fiber and crassicarpa fiber composition.
Paper pulp fiber compositions can comprise 100% sallee fibre types.Therefore, paper pulp
Fiber composition can need not add (excess) extraordinary chemicals or enzyme of adhering to reduce paper pulp
The amount of the lipotropy content in fiber composition.Sallee fibre types can be part or
Pure pulp fibres completely.Sallee fibre types generally can be cellulose fibre and
Can be from Asia, Indonesia, Africa and the sallee fiber of other tropical climates.
Paper pulp fiber compositions can have the lipotropy content less than prior art tradition paper pulp, to the greatest extent
Present in pipe paper pulp fiber compositions, the amount of sallee kind is noticeably greater than prior art
In acceptable amount.Such as, in tradition paper pulp, the amount of sallee kind can not be more than 35%,
Because the amount increasing sallee kind exceedes this limit and will cause and Yankee exsiccator
The sticking problem on surface, cause behavior in service poor, reduce machine efficiency and reduce paper quality.
But, the inventors discovered that, by having the mixture of two kinds of sallee kinds
(its total content limit more than the 35% of prior art), in the paper pulp fiber compositions of generation
The amount of lipotropy content does not increase, and can be controlled on the contrary at expected value, and this expected value makes
Good and Yankee dryer surface the adhesion of behavior in service is higher and the better quality of paper.
Therefore, this is contradiction and contrary with the general common recognition of this area, must set in the art
Put problem sallee kind present in paper pulp being limited in avoiding paper to produce.
In paper pulp fiber compositions, Acacia mangiumwilld fiber can at most about 35wt%, at most about
30wt%, at most about 25wt%, at most about 20wt%, at most about 15wt%, at most about 10
The weight concentration of wt%, at most about 5wt% or at most about 0.1wt% is present in paper pulp fiber combination
In thing.
Crassicarpa can at least about 65wt%, at least about 70wt%, at least about 75wt%,
At least about 80wt%, at least about 85wt%, at least about 90wt%, at least about 95wt% or extremely
The weight concentration of many 99.9wt% is present in paper pulp fiber compositions.
Paper pulp fiber compositions can have less than 0.420, less than 0.415, less than 0.410, be less than
0.405 or less than 0.400 conquassation index.By increasing conquassation index, after extrusion can be by water
The voidage carried secretly minimizes, and causes the amount reducing the free water content in fiber.This can help
The fiber reduced from Yankee exsiccator is helped to evaporate the amount of the heat energy needed for water, this is because paper
In pulp fibres compositions, the amount of water reduces.Conquassation index is calculated (or pressure based on following equation (1)
Routed index (collapse resistance index), CRI):
Paper pulp fiber compositions can have at least about 5.0N/m, at least about 5.5N/m, at least about
6.0N/m, at least about 6.5N/m or at least about 7.0N/m with Yankee dryer surface
Adhesion.Sallee paper pulp depends on hydrophilic with the adhesion of Yankee exsiccator
(or carbohydrate) content and hydrophobicity (or lipotropy) content.Hydrophilic component is carbon aquation
Compound (alpha-cellulose, β-cellulose, gamma cellulose, arabinose, galactose, xylose, Portugal
Grape sugar and mannose), lipophilic ingredients includes fatty acid, fatty alcohol, ferulic acid, glycerol simultaneously
Ester and sterols.The hydrophilic increased in paper pulp or carbohydrate content, half such as increased
The content of cellulose (arabinose, galactose or xylose), glucose and mannose will improve paper
Starch the adhesion with Yankee dryer surface and improve water retention value.Paper pulp is done with Yankee
The raising of the adhesion of dry device is the existence of the hydrophilic component owing to serving as adhesive agent.Then,
The water retention value increased increases the water content of paper pulp, and then it is due to by its surface tension and pole
Property captivation the captivation of water and metal surface help paper pulp is adhered to metal surface
(Yankee dryer surface).Contain owing to sallee comprises the hemicellulose fewer than Eucalyptus
Amount, therefore can be by the hydrophilic in relatively mild pulping process preserving capital albizzia plant paper pulp
Content.Then, hydrophobic components stops the viscosity of hot metal surface.Therefore, hydrophilic is with thin
The amount of aqueous components needs suitably control and adjusts to obtain desired with Yankee exsiccator viscous
Attached power.
Paper pulp fiber compositions can have about 0.05% to about 0.15%, about 0.05%, about 0.06%,
About 0.07%, about 0.08%, about 0.09%, about 0.10%, about 0.11%, about 0.12%, about
0.13%, the lipotropy content (as by dichloromethane extraction) of about 0.14% or about 0.15%.
The code test being measured lipotropy content by solvent extraction can be international standard TAPPI T204
cm07.By controlling the amount of lipotropy content in paper pulp fiber compositions, still ensure that long-chain simultaneously
Carbon fatty acid and fatty alcohol (C24 to C28) with controllable level exist for increase with
The adhesion of Yankee exsiccator, paper pulp fiber compositions can be used for preparing and has good quality
Paper.
Paper pulp fiber compositions can have half fiber of at least about 14.5%, about 15% or about 20%
Cellulose content.
Accordingly, because there is crassicarpa (it gives high microsteping conquassation and low CRI) and Ma Zhanxiang
Think (its offer has dystectic long-chain carbon lipotropy), guarantee that lipotropy content is at most simultaneously
0.15%, therefore paper pulp fiber compositions have the adhesion good with Yankee dryer surface,
The ability need reduced and generation have the paper of good pliability and opacity.
In order to form paper pulp fiber compositions, obtain the Acacia mangiumwilld wood of fixed proportion from chip pile
Sheet and crassicarpa wood chip (such as, the ratio of respectively 35% to 65%).Use white liquor, dilute
Black liquor (WBL) and hot black liquor (HBL) in boiling vessel steaming and decocting chips mixtures to reach desired
Steaming and decocting κ (scopes of such as 17 to 19).Κ (Kappa) is the indirect amount of timber delignification degree
Degree.The paper pulp of screening steaming and decocting is to remove any uncooked wood chip and to wash with before next stage
Improve cleannes.Then, scrubbed paper pulp enters oxygen delignification and is used in (ODL) stage
By using the further lignin of oxygen, the white liquor of oxidation and Caustic soda to remove.Then, paper pulp
Entering bleaching stage, such as the D stage is (by using ClO2), the EOP stage (by use oxygen,
Caustic soda and peroxide), then the last D stage is (by using ClO2).At each bleaching stage
Between apply the washing stage to improve the cleannes of paper pulp before next stage.Paper pulp is being floated
After white brightness needed for end user, by pulp storage before entering pulp dryer
In slurry reservoir.Then, in pulp dryer, pulp is cleaned further with
Remove dust granule.Slurry is configured to fiber mat and removes water, then at hot-air dry simultaneously
It is further dried in device and extrudes before to remove water continuously.Then, by dry paper pulp sheet (at it
In there is Acacia mangiumwilld fiber and crassicarpa fiber) cut into its Package size packaging
In shipping.
Above-mentioned paper pulp fiber compositions can be used for being formed the paper of the such as scraps of paper.Described prepare paper
Method can include be dried comprise Acacia mangiumwilld fiber and crassicarpa fiber paper pulp fiber combination
Thing is to form the step of the paper being dried.The aridity of the paper before Yankee can be at least about
24.2%, at least about 24.3%, at least about 24.4%, at least about 24.5%, at least about 24.6%,
At least about 24.7%, at least about 24.8%, at least about 24.9% or at least about 25.0%.
Drying steps can be carried out in Yankee exsiccator.Before scraper is wiped off, can be
Paper pulp fiber compositions is dried to acceptable aridity by Yankee exsiccator.Due to it
Low lipotropy content and do not use and extraordinary adhere to chemicals or pretreatment, paper pulp fiber compositions energy
Enough and Yankee dryer surface adheres to.
Although the paper being dried is still on Yankee exsiccator, it is equipped in Yankee circle can use
Dry paper wiped off by scraper on cylinder so that paper is wrinkling.Therefore, method may also include and makes to be dried
Curl with formed wrinkle paper step.Wrinkling by paper pulp and Yankee exsiccator
Adhesion, the geometry of scraper, speed between Yankee and the decline of paper machine
Difference and characteristics of pulp control.
Method may also include processing wrinkle paper to form the step of paper products.This can include rotate,
Cutting and packaging wrinkle paper are to form the paper products of such as wrapping paper.
The paper formed by the paper pulp fiber compositions comprising Acacia mangiumwilld fiber and crassicarpa fiber
Sheet can have at least about 13.0cm3/ g, at least about 13.1cm3/ g, at least about 13.2cm3/g、
At least about 13.3cm3/ g, at least about 13.4cm3/ g or at least about 13.5cm3The paper bulk of/g
Character.The scraps of paper can have at least about 7.5Nm/g, at least about 7.6Nm/g, at least about 7.7Nm/g,
The horizontal anti-tensile of paper of at least about 7.8Nm/g, at least about 7.9Nm/g or at least about 8.0Nm/g
Index.The scraps of paper can have at least about 9Nm/g, at least about 9.5Nm/g, at least about 10Nm/g,
The paper longitudinal direction tensile index of at least about 10.5Nm/g, at least about 11Nm/g.The scraps of paper can have to
The paper pliability of few about 13 or at least about 14.The scraps of paper can have at least about 56%, at least about 57%,
At least about 58%, at least about 59% or the paper opacity of at least about 60%.
Accompanying drawing is sketched
Accompanying drawing is exemplified with disclosed embodiment and for explaining the principle of open embodiment.
It is, however, to be understood that design accompanying drawing is only for the purpose illustrated, and the present invention without limitation
Definition.
Fig. 1 is to represent that fibre structure and the conquassation of various pulp mixtures refers to after laboratory slurrying
The block diagram of number.
Fig. 2 is the component representing the lipophilic substance extracted in Acacia mangiumwilld and crassicarpa timber
Block diagram.
Fig. 3 is the block diagram representing the fatty acid component in Acacia mangiumwilld and crassicarpa timber.
Fig. 4 is the block diagram representing the fatty alcohol component in Acacia mangiumwilld and crassicarpa timber.
Fig. 5 is the block diagram representing the relation between fatty alcohol fusing point and carbon chain lengths.
Fig. 6 is that the adhesion with Yankee exsiccator is with sallee lipotropy changes of contents
Chart.This chart be also shown as increasing paper pulp adhesion on Yankee surface and
The amount adhering to chemicals used in Yankee exsiccator.
Fig. 7 is for representing that lipotropy content increases thick-walled pod in pulp mixture with by laboratory slurrying
The block diagram of the amount change of yearning between lovers.
Fig. 8 is for representing that lipotropy content is with increasing thick-walled pod phase in pulp mixture after slurrying of milling
The block diagram of the amount change thought.
Fig. 9, for representing compared with other paper pulp, is dried with the Yankee of sallee XP
The block diagram of the adhesion of device.
Figure 10 for represent compared with other paper pulp, the Yankee of sallee XP it
The block diagram of front aridity.
Figure 11 is to represent compared with other paper pulp, the tensile index of sallee XP, essence
Energy processed and the block diagram of the stretching at 25 ° of SR.
Figure 12 is to represent compared with the paper using similar gsm to be made up of other paper pulp, Jin He
The paper tensile strength index of joyous platymiscium XP paper and the chart of paper bulky angle value.
Figure 13 is to represent compared with the paper using similar gsm to be made up of other paper pulp, Jin He
The paper pliability of joyous platymiscium XP paper and the block diagram of opacity quality.
Embodiment
By being more fully described the non-limiting enforcement of the present invention further with reference to specific embodiment
Example and comparative example, described specific embodiment is not necessarily to be construed as limiting by any way this
Bright scope.
Embodiment 1
Before slurrying, by Acacia mangiumwilld wood chip and crassicarpa wood chip with each ratio (as above institute
State) mix and characterize the paper pulp of generation to determine fibre structure, lipotropy content and and Yankee
The adhesion of exsiccator.
Fibre structure
Fibre structure is by fibre morphology test instrunment (such as Kajaani Fiber
Lab., Fiber Master or FQA instrument) middle detection acquisition.Generally, fibre structure or fiber
Morphology is the result of the average single fibre plate comprised in paper pulp.Such as, 1 milligram of paper pulp bag
Fibre plate containing 10,000-28,000.
By having the index of resistance to conquassation of reduction, voidage fall water after extrusion can carried secretly
Low or minimize.The index of resistance to conquassation reduced also results in the free water content of reduction.Fig. 1 represents
The fibre structure of each pulp mixture of Acacia mangiumwilld and crassicarpa.As it is shown in figure 1, grind
Studying carefully 11 kinds of pulp mixtures, wherein the first sample is that 100% Acacia mangiumwilld does not has crassicarpa
(sample AM100AC00) and sample subsequently are by gradually reducing amount 10% He of Acacia mangiumwilld
The amount 10% being stepped up crassicarpa obtain (sample AM90AC10, AM80AC20,
AM70AC30、AM60AC40、AM50AC50、AM40AC60、AM30AC70、
AM20AC80, AM10AC90) until using the crassicarpa (sample with 100%
AM00AC100) final sample.It can be seen that by having the thickness more than 65% in paper pulp
Pod yearning between lovers, the index of resistance to conquassation reduces.By retaining carbohydrate mainly as half in paper pulp
Content of cellulose (being at least 14.5%), paper pulp adhere to Yankee exsiccator surface and
Increase the water content of paper pulp after extrusion before exsiccator.
Lipotropy content analysis
Lipotropy content in Acacia mangiumwilld and crassicarpa is by use is nonpolar or lipotropy is molten
Agent is extracted and is determined.Then, the lipophilic materials of gas chromatogram (GC) analyser identification extraction is used.
Testing regulations used herein is those of code test TAPPI T204cm07 code.
From the laboratory extract of the timber using dichloromethane solvent and paper pulp, find that horse accounts for
Yearning between lovers comprises the lipophilic substance more than crassicarpa.Acacia mangium comprises the parent of 1.21%
Lipid content crassicarpa timber simultaneously comprises the lipotropy content of 0.33%.Acacia mangiumwilld paper pulp
The while of comprising the lipotropy content of 0.29%, crassicarpa paper pulp comprises the lipotropy content of 0.10%.
Hexane extraction GC subsequently is used to identify between Acacia mangiumwilld and crassicarpa timber
Lipophilic ingredients is further analyzed.Fig. 2 represents two kinds of sallee timber
The general component of the lipophilic materials of middle extraction.As in figure 2 it is shown, Acacia mangium comprises ratio
The more fatty acid of crassicarpa timber, fatty alcohol, ferulic acid, glyceride and sterol.Due to
The lipotropy content of 80% is chain fatty and sponifiable material (saponifibles), and therefore this helps
Cleaning action in sallee timber.By contrast, other hardwoods of such as Eucalyptus
In lipotropy content be fluoropolymer resin and can not saponified fat form, it contributes to paper (paper)
Or the dust in paper (tissue) manufacture process or deposition problems, cause with the paper (paper) produced or
The problem that the cleannes of paper (tissue) product are relevant.
The lipotropy content that lipophilic ingredients unit usually shows in paper pulp is evaluated further by GC
Minimizing be difficult because most elements is that (C24 is extremely for long-chain carbon fatty acid and fatty alcohol
C28) form, Acacia mangiumwilld is the highest as shown in Figure 2.Fig. 3 and Fig. 4 represents lipotropy group
Divide and classified by the carbon number of two kinds of sallee kind apoplexy due to endogenous wind.But, Acacia is planted
These long chain elements in thing have no effect on the dust in paper or paper manufacture method or deposition.These
The fusing point the highest (more than 75 DEG C, see Fig. 5) of long-chain carbon fatty alcohol and be the discovery that heat
The other impact of the sticking problem on Yankee surface.Therefore, sallee paper pulp is controlled
Lipophilic moieties in the amount of long-chain carbon component be important.Inventor finds little by having
In or equal to 0.16% DCM can extract form lipotropy content provide be dried with Yankee
The adhesion that device surface is optimal, sees Fig. 6.Therefore, the DCM less than or equal to 0.16% can
The target number of the lipotropy level of extraction form is for obtaining the optimal gold conjunction produced for paper
Joyous platymiscium paper pulp grade.
As it has been described above, the amount of long-chain lipotropy carbon component is than that in crassicarpa in Acacia mangiumwilld
The highest about 17 times.By the amount of lipotropy content in known Acacia mangiumwilld and crassicarpa, can obtain
Must produce has the pulp mixture less than or equal to 0.15% lipotropy content.Laboratory system
Slurry result show < in the case of the Acacia mangiumwilld of 30% (and the crassicarpa more than 70%), paper
Pulp mixture have as DCM is extractible be less than 0.18% lipotropy content, see Fig. 7.
The most conventional steaming and decocting and the washing (use room temperature tap water) that at room temperature carry out with hands is used to carry out
Laboratory slurrying is for each stage of pulping process.When slurrying of milling with paper pulp is compared, make
Acacia mangiumwilld with≤35% (with >=65% crassicarpa), pulp mixture have less than or etc.
In total lipotropy content of 0.16%, see Fig. 8.Due to for obtaining the method for paper pulp (with it
Middle use room temperature tap water carries out laboratory washing paper pulp method for grinding simultaneously and uses at identical point
The paper pulp that high pH is carried out under the mean temperature of 75 DEG C slurrying of milling is compared, and laboratory slurrying is led
The lipotropy causing to strengthen in paper pulp mill processes is removed), obtain more in the paper pulp of laboratory treatment
High lipotropy content.
Based on above-mentioned, the pulp mixture with the Acacia mangiumwilld less than or equal to 35% is selected to use
In evaluating (hereinafter referred to as sallee XP paper pulp) further.This pulp mixture is advantageously
There is the excellent adhesion on Yankee exsiccator, plant even if paper pulp is 100% Acacia
Thing.Therefore, this paper pulp overcomes in this area sallee kind present in paper pulp
Amount is normally limited to be to the maximum the technology prejudice of 35%, and this is owing to having more than 35% when use
The adhesion of the paper pulp time difference of sallee kind and the problem of behavior in service.In order to reduce
In paper pulp, the amount of sallee kind is to improve the adhesion with Yankee exsiccator, tradition
Method includes using extraordinary adhesion chemicals or the pretreatment of sallee paper pulp, its anti-mistake
Come, cause the quality problems of paper and increase production cost.Therefore, this embodiment confirms and passes
System method is compared, and the paper pulp with the sallee kind more than 35% can be by using two
The mixture of the sallee kind of type and there is no any other chemicals or locate in advance
Reason process is readily available.Owing to disclosed paper pulp comprises the sallee kind of 100%,
Therefore the paper produced is soft, has good paper outward appearance.
Embodiment 2
Sallee XP paper pulp (had≤Acacia mangiumwilld of 35% and the thick-walled pod of >=65%
Yearning between lovers) compare with other kinds of paper pulp and be characterised by the adhesion with Yankee exsiccator,
Pulp dryer degree, paper tensile strength and paper quality.
Find that sallee XP paper pulp has optimal behavior in service during paper manufacture,
There is the higher adhesion with Yankee exsiccator, see Fig. 9, when closing with based on standard gold
Joyous platymiscium is (by having the minimum Acacia mangiumwilld content of 40% and the uncontrolled of some Eucalyptuss
Sheet mixture make) other kinds of paper pulp when comparing, A Eucalyptus of milling, F eucalyptus globulus of milling
Tree and S Eucalyptus of milling.Mill A Eucalyptus, mill F Eucalyptus and mill S Eucalyptus respectively from
Arauco (Chile), Fibria (Brazil) and Suzano (Chile) are commercially-available.
Then, the pulp dryer degree of various pulp sample is studied.By at sallee XP
Paper pulp has < Acacia mangiumwilld of 35%, the height of Acacia mangiumwilld in sallee XP paper pulp
Pulp dryer degree before Yankee exsiccator is improved to 24.9% by fiber collapsibility, and it is high
In other pulp sample, see Figure 10.This cause made of paper standby during heating-energy saving, simultaneously
Keep the adhesion improved with Yankee dryer surface.
By using the pulping process of milder to have≤Acacia mangiumwilld of 35% and the thick-walled pod of >=65%
Yearning between lovers, it is thus achieved that optimal fiber characteristics, then it produces high initial tension and excellent in strength.
Embodiment 3
Then, sallee XP paper pulp is formed paper.In blending chest before mixing,
Sallee XP paper pulp can be made by optional refiner.Then, the paper pulp of mixing enters
Enter pressure screening stage for removing the removal of impurity and dust further.After screening, it is being injected into
Before template (or in Modern Paper machine, this dieplate is replaced by two-wire formation system), paper pulp
The head box stage is entered for water removal under the equipment concordance controlled.After removing water,
Extruding pulp mat is for removing water further.Then, in Yankee exsiccator, net is dried.
Paper pulp is floating, adhere to and creep behaviour determines the quality of final paper.Parent in paper pulp in this process
The amount of lipid content plays great role.Can add during Yankee exsiccator adhesive agent and
Releasing agent chemicals is so that paper quality and dry productivity ratio optimization.It should be noted that, paper machine skill
Art can be different, and therefore foregoing description only provides a kind of method forming paper.This area can be used
Additive method known to the skilled person replaces.
Compared with needed for Eucalyptus, sallee XP paper pulp needs less than half or refined
Energy requirement, sees Figure 11.This shows the high energy savings of the electric power needed for paper pulp subtractive process
And show made of paper standby during the potential minimizing that consumes of cork fibrous.
After Yankee exsiccator process, sallee XP provides ratio standard gold Herba Albiziae
The paper tensile index value of platymiscium and Eucalyptus (averagely) sample preferably longitudinal direction (MD) and laterally (CD),
See Figure 12.This shows sallee in paper conversion process (rotate, cut and pack)
XP provides more preferable behavior in service.Compared with standard gold albizzia plant and Eucalyptus, gold is closed
Joyous platymiscium XP paper bulk properties somewhat increases, and causes higher paper bulk.This bulky
Degree main impact packaging and transport, this is because in the paper wrapper or paper roll of some bulks relatively
High bulk provides the lesser amount of scraps of paper.
Embodiment 4
The final paper formed by sallee XP paper pulp is characterised by paper pliability and not
Transparency quality.From the viewpoint of consumer, paper texture or pliability and visual appearance are
The desired part of consumer.Compared with other paper pulp, sallee XP provides best
Paper pliability；This by its specific characteristic of fiber collapsibility and carries after drying at Yankee
High creep quality completes.By the higher fiber quantity of its sallee XP, (fiber is every
Gram), in the pulp sample of test, paper opacity is also the highest, sees Figure 13.This carries
For the more preferable paper visual appearance similar with cloth handkerchief, even if in the feelings of the thinnest or low gsm paper
Under condition.Protect if it is required, some humidizers interpolation to paper can be used for intensity in wet conditions
Hold and guarantee to process paper after a procedure and not block Toilet system simultaneously.
Application
Disclosed paper pulp fiber compositions can be used for being formed the paper products of such as paper.The paper formed can
There is good paper pliability, opacity and intensity.Disclosed paper pulp fiber compositions is permissible
Need not any ferment treatment to reduce lipotropy content or to increase the adhesion with Yankee exsiccator
Power.Although as a rule, it may not be necessary to the extraordinary chemicals that adheres to, but can remain a need for certain
These chemicals of amount are to form thin layer between Yankee and the scraps of paper.
It is apparent that after reading foregoing disclosure, without prejudice to the spirit and scope of the invention
In the case of, other modifications and changes various of the present invention are to those skilled in the art
Significantly and be intended to all this modifications and changes within the scope of the appended claims.
Claims (14)
1. paper pulp fiber compositions, it comprises Acacia mangiumwilld fiber and crassicarpa fiber.
2. paper pulp fiber compositions as claimed in claim 1, wherein said Acacia mangiumwilld fiber
It is present in described paper pulp fiber compositions with the weight concentration of at most 35wt%.
3. paper pulp fiber compositions as claimed in claim 1 or 2, wherein said crassicarpa
Fiber is present in described paper pulp fiber compositions with the weight concentration of at least 65wt%.
4. such as paper pulp fiber compositions in any one of the preceding claims wherein, wherein said paper
Pulp fibres compositions has the conquassation index less than 0.420.
5. such as paper pulp fiber compositions in any one of the preceding claims wherein, wherein said paper
Pulp fibres compositions has the lipotropy content of 0.05% to 0.15% (as passed through dichloromethane extraction
).
6. such as paper pulp fiber compositions in any one of the preceding claims wherein, wherein said paper
Pulp fibres compositions has the aridity of at least 24.2% or at least 24.5%.
7. the method preparing paper, it includes being dried, and to comprise Acacia mangiumwilld fiber and crassicarpa fine
The paper pulp fiber compositions of dimension is to form the step of the paper being dried.
8. method as claimed in claim 7, its also include making described dry curl with
Form the step of wrinkle paper.
9. as claimed in claim 7 or 8 method, its also include processing described wrinkle paper with
Form the step of paper products.
10. the scraps of paper, it is by the paper pulp fiber group comprising Acacia mangiumwilld fiber and crassicarpa fiber
Compound is formed, and it has at least 13cm3The paper bulk properties of/g.
11. scraps of paper as claimed in claim 10, its paper with at least 7.5Nm/g laterally resists
Tensile index.
12. scraps of paper as described in claim 10 or 11, its paper with at least 9Nm/g is indulged
To tensile index.
13. scraps of paper as according to any one of claim 10 to 12, it has at least 13
Paper pliability.
14. scraps of paper as according to any one of claim 10 to 13, it has at least 56%
Or the paper opacity of at least 58%.
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| Application Number | Priority Date | Filing Date | Title |
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| SG10201503693PA SG10201503693PA (en) | 2015-05-11 | 2015-05-11 | A Pulp Fiber Composition |
| SG10201503693P | 2015-05-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644272A (en) * | 2019-09-29 | 2020-01-03 | 海南金海浆纸业有限公司 | Preparation method of high-bulk low-extract sulfate acacia wood pulp |
| CN112037962A (en) * | 2020-08-31 | 2020-12-04 | 盐城工学院 | Transparent conductive paper capable of being directly printed |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3619262B1 (en) | 2017-05-05 | 2022-02-16 | Masonite Corporation | Cellulosic articles made from cellulosic materials and methods therefor |
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|---|---|---|---|---|
| JP2003027388A (en) * | 2001-07-19 | 2003-01-29 | Pt Public Kertas Tjiwi Kimia Tbk | Paper using acacia wood pulp and method for producing the same |
| CN101068979A (en) * | 2004-11-30 | 2007-11-07 | 集伟纸业化工股份有限公司 | Small information sheet |
| CN101535563A (en) * | 2006-09-15 | 2009-09-16 | 巴科曼实验室国际公司 | Methods to control lipophilic extractives in acacia wood pulp and fiber |
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| TWI553190B (en) * | 2011-07-25 | 2016-10-11 | 王子控股股份有限公司 | Non-coated paper and coated paper |
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2015
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Patent Citations (3)
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|---|---|---|---|---|
| JP2003027388A (en) * | 2001-07-19 | 2003-01-29 | Pt Public Kertas Tjiwi Kimia Tbk | Paper using acacia wood pulp and method for producing the same |
| CN101068979A (en) * | 2004-11-30 | 2007-11-07 | 集伟纸业化工股份有限公司 | Small information sheet |
| CN101535563A (en) * | 2006-09-15 | 2009-09-16 | 巴科曼实验室国际公司 | Methods to control lipophilic extractives in acacia wood pulp and fiber |
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| 刘光良: "相思属树（Acalia Sp.）材性及制浆造纸适应性", 《林产化工通讯》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110644272A (en) * | 2019-09-29 | 2020-01-03 | 海南金海浆纸业有限公司 | Preparation method of high-bulk low-extract sulfate acacia wood pulp |
| CN112037962A (en) * | 2020-08-31 | 2020-12-04 | 盐城工学院 | Transparent conductive paper capable of being directly printed |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20180002569A (en) | 2018-01-08 |
| CN106283826B (en) | 2018-08-28 |
| KR101827357B1 (en) | 2018-02-08 |
| SG10201503693PA (en) | 2016-12-29 |
| KR20160132740A (en) | 2016-11-21 |
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