CN103850145A - Natural color fluff pulp and preparation method thereof - Google Patents
Natural color fluff pulp and preparation method thereof Download PDFInfo
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- CN103850145A CN103850145A CN201410082004.9A CN201410082004A CN103850145A CN 103850145 A CN103850145 A CN 103850145A CN 201410082004 A CN201410082004 A CN 201410082004A CN 103850145 A CN103850145 A CN 103850145A
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Abstract
The invention aims to provide a natural color fluff pulp which is really healthy and environmentally friendly. The natural color fluff pulp is characterized by being prepared from one raw material or a plurality of raw materials through mixing, and has performance parameters meeting the fluff pulp national standard GB/T21331-2008. The materials adopted by the natural color fluff pulp are not blanched, not added with a brightener or a color developing agent during the production process; a natural color fluff pulp product does not contain cancerogenic substance such as dioxin or adsorptive organic halide, harm to the human body and pollution to the environment caused by chemicals used in the blanching or brightening process are eliminated, 100% natural color of plant fiber is kept; the natural color fluff pulp is applicable to the field of hygienic products; a manufactured hygienic product has excellent performances and improved practicability; the natural color fluff pulp is sanitary, safe and environmentally friendly, and has good protection property for physiological hygiene and physical and psychological health of the human body.
Description
Technical field
The present invention relates to a kind of true qualities Time of Fluff Slurry and preparation method thereof, in particular, the present invention relates to not bleach string and be made into true qualities Time of Fluff Slurry, belong to pulping technique field.Described true qualities Time of Fluff Slurry is applicable to but is not limited to disposable sanitary articles field.
Background technology
Time of Fluff Slurry, as the paper pulp of absorption liquid body medium, it is wrapped in hydroscopic high-molecular resin (SAP) and has just formed the absorbed layer of absorbent article, has good water absorbing properties, and remains unchanged absorbing structure after liquid.A kind of essential raw material for the production of various absorbent articles (as: sanitary napkin, panty liner, paper diaper, disposable nursing mattress etc.).
At present, prior art Time of Fluff Slurry is taking bleaching needle-leaved wood fibre as main.China's Forest Resources scarcity, according to reporting " south of the River Times " (06 month 08 Tuesday in 2010): " global timber resources tense situation further spreads.No matter be north America region timber production capacity deficiency, or the ground such as Africa, Southeast Asia is for protecting Indigenous forests resource to implement timber export restrictions policy; Also no matter be that the lower heavy hand of recent International Environmental Protection tissue pain is cracked down on smuggling, still domestic Localities In Southwest is subject to drought impact and causes the serious atrophy of timber yield.We can both therefrom see, global timber raw material supply day is being becoming tight, and how solving raw-material shortage problem is " extremely urgent " ".
China mainly relies on import for the Time of Fluff Slurry of amenities, and annual requirement day by day increases, and the in the situation that of timber resources anxiety, develops new raw material production Time of Fluff Slurry China is had important practical significance.
Disposable sanitary articles is a kind of conventional consumer goods, and Time of Fluff Slurry is to produce the indispensable important source material of amenities.At present, wood pulp fluff slurry accounts for leading market, and has all passed through bleaching, and part material has also added brightening agent and developer.
Bleaching, bleaching process mainly comprises that oxygen floats with chlorine and floats two large classes.No matter be oxygen bleaching or chlorine bleach, environment is all existed to pollution in various degree.Oxygen floats, and it is mainly hydrogen peroxide, sodium perborate, ozone etc. that oxygen floats bleaching agent used.Oxygen bleaching is smaller to the harm of environmental ecology, but because of its bleaching effect be not as high as chlorine bleach degree, be subject to sunlight to irradiate for a long time its whiteness can greatly to reduce, meanwhile, oxygen floats that speed of production is slow, efficiency is low, production cost more high former thereby not by enterprise first-selection.Chlorine floats, and chlorine floats and divides high chlorine bleach and less chlorine bleaching, that is, distinguish with the consumption height of bleaching agent used.Be widely adopted because its bleaching effect is good, cost is low.Conventional bleaching agent has clorox, calcium hypochlorite (being bleaching powder) and sodium chlorite, chlorine dioxide etc.Not only bleaching process causes tremendous influence to environment, and bleaching process also will produce environmentally harmful chemical substance.Float in process except producing chloroform at chlorine, in waste liquid, also contain more than 40 kind of organic chloride, wherein taking various chlorinated phenols as at most, as dichloro-phenol, three chlorinated phenols, also produce bioxin (dioxins) and furans (furans) product, it is hypertoxic having kind more than 10.No matter be to adopt high chlorine bleach or less chlorine bleaching, by all can residual contamination carcinogen on bleached fiber, harm ecology and health.
Amenities is mainly used in women, children, old man, patient and disposable medical amenities, existing amenities uses bleaching Time of Fluff Slurry, the long-term amenities that uses chlorine bleach Time of Fluff Slurry to make directly contacts with skin, in chlorine bleach Time of Fluff Slurry, the carcinogen such as residual bioxin and adsorbable organohalogen compounds, has very large healthy hidden danger to human body.
Sandwich of layers (being absorbed layer) by bleaching Time of Fluff Slurry as amenities, does not only have sensory effects but also there is no substantial effect, has also destroyed environment, real large mistaken ideas that belong in application.Environment has been caused severe contamination, health has been caused to unnecessary harm.
The production of existing bleaching Time of Fluff Slurry, mainly takes as the leading factor with needlebush seeds, large to forest deterioration, is becoming tight raw material day, production process environmental pollution is large, and bleaching Time of Fluff Slurry residual harmful substance in bleaching process also can be brought hidden danger to the mankind's health.Change raw material assortment, accelerate substitute material development and application, reduce enterprise's pollution to environment aborning, improve Time of Fluff Slurry adaptability, reduce production costs, be the obstacle that current existing Time of Fluff Slurry technology exists.In view of this, special proposition the present invention.
Summary of the invention
Primary and foremost purpose of the present invention is to provide the true qualities Time of Fluff Slurry of a kind of true health, environmental protection.
Described true qualities Time of Fluff Slurry raw materials is in process of production without bleaching, do not add brightening agent, not adding developer, in prepared true qualities Time of Fluff Slurry product, do not contain the carcinogen such as bioxin and adsorbable organohalogen compounds, the chemicals of having stopped to use in bleaching or whitening, to the possible injury of human body and pollution on the environment, keeps the natural true qualities of string 100%.
To achieve these goals, the technical solution used in the present invention is:
A kind of true qualities Time of Fluff Slurry, is characterized in that described true qualities Time of Fluff Slurry is prepared by a kind of raw material or multiple raw material are mixed with; Described true qualities fluff pulp fibers raw material includes but not limited to: wooden fibrid raw material, fibers in grass class raw material, bast fibers raw material, leaf fibrid raw material, kind wool fibre raw material, bamboo fibrid raw material;
Wood fibrid raw material: needle-leaved wood fibre raw material (as: dragon spruce, fir, Chinese hemlock spruce, larch, Korean pine, masson pine, pinus yunnanensis etc.), broad-leaved wood fiber raw material (as: poplar, birch, Eucalyptus, maple, elm etc.);
Fibers in grass class raw material (as: straw, straw, reed, giantreed, bagasse, kaoliang stalk, cornstalk, cotton stalk etc.);
Bast fibers raw material (as: hemp, flax, jute, cotton stalk bark, bluish dogbane skin etc.);
Leaf fibrid raw material (as: Chinese alpine rush, sisal hemp, pineapple leaves etc.);
Plant wool fibre raw material (as: cotton, cotton linter etc.);
Bamboo fibrid raw material (as: mao bamboon, bambusa textile, cizu, fishscale bamboo, in vain press from both sides bamboo, west wind bamboo etc.).
Time of Fluff Slurry preparation of the present invention comprises: fibrous raw material size degradation, boiling, cleaning dust, oxygen delignification, washing are discongested, pulp modifying, dry, obtain described true qualities Time of Fluff Slurry.Its performance parameter meets Time of Fluff Slurry standard GB/T/T21331-2008.
1, raw material size degradation
Utilize hammer mill to carry out dry method size degradation fibrous raw material used, size degradation length and index thereof meet boiling requirement (length is 2～4cm); Disintegrating machine is the commercially available hammer mill of the existing use of getting the raw materials ready.
2, boiling
Adopt anthraquinone-caustic soda cooking process, add cooking liquor when boiling in fibrous raw material, liquor ratio is 1:2～1:4, and wherein alkali charge is the 9-12% of over dry material quantity; Anthraquinone consumption is the 0.4-0.7% of over dry material quantity.
Pass into steam and heat, be heated to 165～175 DEG C, heat up, little venting, little venting 15～25 minutes, omnidistance 110～120 minutes time of insulation, obtains Kappa number and is 30～35 high-hardness pulp;
3, cleaning dust
Acroll press washer extracts one section of pulp washing of black liquor → vibrating screen once discongest → high carefully select → scummer of dense pressurized screen dedusting → vacuum pulp washing machine of roughly select → deflaker;
(1) acroll press washer: entering to starch concentration is 10-12%, extracts the dense 30-35% of slurry after black liquor;
(2) vibrating screen: entering to starch concentration is 3～5%:
(3) deflaker: entering to starch concentration is 3～5%, the slurry pulping degree 20-24SR after discongesting;
(4) high dense pressurized screen: entering to starch concentration is 3-5%:
(5) scummer: enter to starch concentration 1-2%;
(6) vacuum pulp washing machine: enter to starch concentration 1-2%, pulp concentration 12-15%;
Acroll press washer is SP750 type acroll press washer;
Vibrating screen is MM-4S type vibrating screen;
Deflaker is XZJ21 type deflaker;
High dense pressurized screen is the high dense pressurized screen of FGY type;
Scummer is NHY-600 type scummer;
Vacuum pulp washing machine is SZ2B vacuum pulp washing machine;
4, oxygen delignification
Adopt one section or two sections of oxygen delignifications, in oxygen delignification reactor, carry out;
It is 13-17% that oxygen delignification reactor enters to starch concentration, and Reactor inlet place temperature is 90-95 DEG C, and reactor pressure is 0.3-0.5MPa; In described oxygen delignification, alkali charge is the 2.5-3.5% to oven dry stock amount in NaOH, and the addition of oxygen is oven dry stock amount 25-35kg per ton; Described slurry reaction time in this reactor is 60-80 minute;
5, washing
Use wash engine to carry out pulp washing (two series processes) to slurry;
When described washing, starching dense is 2-4%, and after pulp washing, whiteness is 45-60%ISO;
Wash engine is ZX111 drum washer:
6, discongest
Utilizing deflaker to carry out secondary to slurry discongests;
Fluffer concentration is 2-4%, the slurry pulping degree 28-32SR after discongesting;
Fluffer is XZJ21 type deflaker;
7, pulp modifying
Be transported to high density hydraulic pulper through concentrated slurry, heat, add modified additive to carry out natural color pulp modification;
(1) the high dense press master of FLD type concentrates, and starches dense 16-20%;
(2) the vertical high density hydraulic pulper of ZGSII-20 type enters to starch concentration 16-20%, and temperature is 40-45 DEG C;
(3) add modified additive:
Debonding agent: quaternary ammonium salt debonding agent LS-1, structural formula is [R (CH
3)
3n]
+.cl-(R is>=C
12straight chained alkyl), addition is oven dry stock amount 65-75kg per ton;
PCC leavening agent: PCC leavening agent is light calcium carbonate fine powder, addition is the 2-4% of oven dry stock amount;
Retention agent: vapour bar P47 retention agent, addition is the 0.01-0.02% of oven dry stock amount;
(4) curing time is 45-60 minute;
8, true qualities Time of Fluff Slurry is dry
True qualities Time of Fluff Slurry after slaking is through centrifugal dehydration, crawler type drying machine drying;
(1) true qualities Time of Fluff Slurry dehydration
Adopt continuity drier to carry out just dehydration to true qualities Time of Fluff Slurry, dehydration disposed slurry moisture 38-45%;
Drier is LX950 type centrifugal drier (rotating speed 1700r/min);
(2) true qualities Time of Fluff Slurry is dried
Adopt hot blast vacuum suction technology, good heat-transfer, dry trip are long, 40 meters of efficient drying strokes (the machine is researched and developed voluntarily by the technical staff of our company); Pulping moisture 6-8%;
9, true qualities Time of Fluff Slurry finished product packing
Adopt packing manner to pack.
Second useful object of the present invention is; described true qualities Time of Fluff Slurry raw material comprises grass fiber raw material; with grass fiber primary industry production true qualities Time of Fluff Slurry; not only save perennial woody plant resources, reduced the exploitation of forest; protect natural, ecological, also greatly reduced production cost.
China is the plantation big country of the grass crops such as wheat, cotton, paddy rice, sugarcane, every harvest season, produce a large amount of straws, processing, the disposal of straw also become the subject matter of paying close attention in people's daily life, owing to cannot processing, dispose this large amount of straw, people have to a large amount of straw burnings, or straw is entered to river, press to reduce a large amount of straw heaps.It is huge that straw burning, straw enter the harm bringing in river.The living environment that it directly affects us, endangers our healthy.Along with the burning of straw, a large amount of smog enters in atmospheric environment, and airborne nitrogen oxide and sulfur dioxide concentration value are improved greatly.Due to air severe contamination, human motion tolerance reduces, cough eyes pain, and old man is not suitable for outdoor exercises, and infant, adult's asthma rate are also than former showed increased.Meanwhile, a large amount of smog enters in atmospheric environment and causes air On The Deterioration of Visibility Over, has a strong impact on communications and transportation, causes many pernicious traffic accidents.
True qualities Time of Fluff Slurry raw material of the present invention is annual or herbaceos perennial or perennial woody plant; herbal application has avoided crop straw burning, stalk to enter river etc. and pollution to environment; natural resources has obtained effective recycling, has also protected atmosphere and soil environment.Not only saved perennial woody plant resources, improved timber, bamboo class comprehensive utilization ratio but also protected environmental ecology.
The 3rd useful object of the present invention be, the true qualities Time of Fluff Slurry of a kind of true health, environmental protection is for hygiene article sector (comprising: disposable sanitary articles and other adsorptive pads material such as sanitary napkin, panty liner, paper diaper, disposable nursing mattress, dust-free paper).The amenities of making has excellent performance: quality softness, fluffy, good water imbibition and water-retaining property, improved practicality greatly; Much cleaner, safer, more environmental protection, the physiological hygiene to human body and physical and mental health have better protectiveness.
The present invention's beneficial effect is compared to existing technology:
1, direct beneficial features: described true qualities Time of Fluff Slurry is in process of production without bleaching, have advantages of that raw materials consumption is low, productive rate is high, cost is low and pollute little, true qualities Time of Fluff Slurry is not subject to the infringement in bleaching process, fiber being brought, fibre length and toughness are all better than bleached pulp, there is good water imbibition and water-retaining property, quality softness, fluffy, has improved the quality of downstream product greatly.
2, the protection to human body: described true qualities Time of Fluff Slurry is without crossing bleaching; avoid the chemicals injury possible to human body using in bleaching process; and do not contain the carcinogen such as bioxin and adsorbable organohalogen compounds in prepared true qualities Time of Fluff Slurry product, keep the natural true qualities of string 100%., more environmental protection much cleaner with the amenities of true qualities Time of Fluff Slurry manufacture, the physiological hygiene to human body and physical and mental health have better protectiveness.
3, the protection to environment: described true qualities Time of Fluff Slurry, without crossing bleaching, has been stopped the waste gas, the pollution of waste liquid to environment that produce because of bleaching.Herbal utilization, has avoided crop straw burning and has arbitrarily stacked pollution on the environment, has obtained effective recycling, has protected atmosphere and soil environment.
4, the utilization of discarded object: described true qualities Time of Fluff Slurry raw material comprise herbaceous plant.The present invention, to herbal exploitation, utilization, has replaced perennial woody plant greatly, has fully effectively utilized natural resources, has saved perennial woody plant resources, has protected ecological environment.Raw materials is cheap and easy to get, can be country and saves a large amount of timber and foreign exchange, has significant economic results in society.
5, the innovation of stoving process: what at present the oven dry of Time of Fluff Slurry adopted is pulpboard manufactures paper with pulp machine, slurry, after wet end moulding, more further dewaters through squeezing and carrying roller, due to the effect of mechanical pressure and then strengthened the adhesion of fiber.
Pulpboard is manufactured paper with pulp machine manufacturing paper with pulp in flossy pulp-board process, because pulpboard is thicker, drying course mass-and heat-transfer is slower, often improves the speed of a motor vehicle and then improves output by improving the way of surface temperature of drier, can cause the phenomenons such as pulpboard surface is over-drying, fiber is aging, skinning, cause product quality to decline.
In dry milling process, there will be the problems such as static is serious, fibrous fracture, dust is many, fiber is short, reduced the bulking intensity of this slurry, affected the excipient effect of downstream finished product.
What the present invention just dewatered employing is continuity drier, and high speed centrifugation carries out preliminary hydro-extraction (1700r/min) to slurry, and dehydration great efforts, have reduced drying cost.Crawler type dryer adopts hot blast vacuum suction technology, good heat-transfer, dry trip long (efficient drying stroke reaches 40 meters).
Drying program of the present invention does not cause extruding to fiber, does not increase the adhesion of fiber, adopts hot blast conduction-type drying technology, and thermal medium transmission is even, can be because of aging the brought adverse consequences of the over-drying fiber that Time of Fluff Slurry is caused.
Detailed description of the invention
Embodiment 1
Boiling (anthraquinone-soda processes)
Cotton stalk carries out size degradation through hammer mill, then cotton stalk bark or long cotton stalk section are further broken and cut through chaffcutter, and its length is no more than 3cm.Fully mix (cotton stalk and cotton linter mass ratio are 7:3) with cotton linter (three road suede), pack in rotary spherical digester, in rotary spherical digester, add cooking liquor, alkali charge be in NaOH to over dry material quantity 13%, anthraquinone addition is 0.8% of over dry material quantity, liquor ratio 1:3, be heated to for the first time 175 DEG C, at this temperature, be incubated 45 minutes, less steam bleeding 20 minutes, post bake heat up 50 minutes to temperature be 170 DEG C, be incubated 70 minutes.After boiling, obtain the high-hardness pulp of Kappa number 33.
Cleaning dust
High-hardness pulp is added to two sections of recycle-waters after pulp washing and be modulated into 12% concentration, send into and extract the acroll press washer used of black liquor and carry out shove, obtain concentration after shove and be 35% high-hardness pulp, by phreatic water (water temperature is not less than 30 DEG C) adjusting concentration to 4%, roughly select with MM-4S vibrating screen, the slurry after roughly selecting is transported to XZJ21 type deflaker by middle underflow pump and discongests.Slurry after discongesting is transported to the further thin choosing of the high dense pressurized screen of FGY type through middle underflow pump, removes deflaker and dredge inextricable fibre bundle and impurity.By three sections of pulp washing recycle-waters adjusting concentration to 2%, then by high mudjack, slurry is transported to scummer removal heavy seeds, further selected and purification, carries out one section of pulp washing through SZ2B vacuum pulp washing machine.
Oxygen delignification
The slurry that goes out wash engine is dense is adjusted to 15%, by conveying worm, the Adlerika of the NaOH of oven dry stock amount 3% and oven dry stock amount 1.5% is fully mixed with slurry, adds low-pressure steam to be heated to 70 DEG C and is transported to middle underflow pipe.This slurry is in the modifier treatment of middle underflow Guan Zhongxian process, the air of getting rid of in slurry makes it fluidization, pass into middle pressure steam to slurry in pipe and be heated to 95 DEG C, add the oxygen of 22KG/ ton oven dry stock amount through oxygen mixer, pressure is 1.0Mpa, be transported to oxygen delignification reactor, keep pressure 0.40Mpa, stop and within 80 minutes, make the abundant delignification reaction of this slurry.After having reacted, this slurry is spurted to stock tank and by clear water diluted concentration to 3%, carry out two sections of pulp washings, adjusting concentration to 15% with ZX111 drum washer (series connection secondary method).Carry out secondary oxygen delignification reaction (technique is the same).
Washing is discongested
After secondary oxygen delignification has reacted, this slurry is spurted to stock tank and by clear water diluted concentration to 3%, carry out three sections of pulp washings, adjusting concentration to 5% with ZX111 drum washer (series connection secondary method).Further discongest with XZJ21 type deflaker, obtain described brown stock, beating degree 31SR, whiteness is 58%ISO, and fiber is long 2.24mm all, and fiber is wide 0.038mm all.
The processing of pulp modifying
(1) slurry after discongesting, through the concentration of the high dense press master simmer down to 20% of FLD type, is transported to the vertical high density hydraulic pulper of ZGS II-20 type, and water temperature is controlled at 40 DEG C.
(2) use quaternary ammonium salt debonding agent LS-170kg according to slurry per ton, dilute with water concentration is the solution of 4% (quality), and temperature is 90 DEG C.
(3) debonding agent solution is joined in high-concentration pulper, allow itself and slurry fully mix slaking 45 minutes.Then add PCC leavening agent (light calcium carbonate fine powder), PCC addition is 3% of oven dry stock amount, then adds vapour bar P47 retention agent, and vapour bar P47 addition is 0.015% of oven dry stock amount, fully mixes with slurry.
Dry, the packaging of true qualities Time of Fluff Slurry
Slurry is dewatered with LX950 type centrifugal drier, the slurry after dehydration is transported to crawler type dryer and dries, and obtains the loose slurry of described true qualities Time of Fluff Slurry.Adopt packing manner to pack.
Moisture 7%, bursting strength 0.25KPam
2/ g, whiteness 58%ISO, dry bulking intensity 17.0cm
2/ g, absorbent time 6.0S, water absorption 9.8g/g, fiber is long 2.24mm all, and fiber is wide 0.038nmn all.
The harmful chemicals such as sanitary index meets national standard, carrene detect.Above index all meets Time of Fluff Slurry standard GB/T/T21331-2008.
Embodiment 2
Boiling (anthraquinone-soda processes)
Bagasse carries out size degradation through hammer mill, pack in rotary spherical digester, in rotary spherical digester, add cooking liquor, alkali charge be in oxygen sodium oxide molybdena to over dry material quantity 13%, anthraquinone addition is 0.8% of over dry material quantity, liquor ratio 1:3, be heated to for the first time 175 DEG C, at this temperature, be incubated 45 minutes, less steam bleeding 20 minutes, post bake heat up 50 minutes to temperature be 170 DEG C, be incubated 70 minutes.After boiling, obtain the high-hardness pulp of Kappa number 32.
Washing and purification
High-hardness pulp is added to two sections of recycle-waters after pulp washing and be modulated into 12% concentration, send into and extract the acroll press washer used of black liquor and carry out shove, obtain concentration after shove and be 35% high-hardness pulp, by phreatic water (water temperature is not less than 30 DEG C) adjusting concentration to 4%, roughly select with MM-4S vibrating screen, the slurry after roughly selecting is transported to XZJ21 type deflaker by middle underflow pump and discongests.Slurry after discongesting is transported to the further thin choosing of the high dense pressurized screen of FGY type through middle underflow pump: remove deflaker and dredge inextricable fibre bundle and impurity, by three sections of pulp washing recycle-waters adjusting concentration to 2%, by high mudjack, slurry is transported to further selected and purification of scummer again, carries out one section of pulp washing through SZ2B vacuum pulp washing machine.
Oxygen delignification
Market is buied Venus board true qualities needlebush pulpboard and after high density hydraulic pulper size degradation, is mixed (wood-pulp board and bagasse pulp are taking oven-dry weight ratio as 4:6) with high rigidity bagasse pulp, starch and be densely adjusted to 15%, after by conveying worm, the Adlerika of the NaOH of oven dry stock amount 3% and oven dry stock amount 1.5% fully being mixed with slurry, pass into low-pressure steam and be heated to 70 DEG C 2 and be transported to middle underflow pipe.The air that this slurry is got rid of in slurry through modifier treatment at middle underflow Guan Zhongxian makes it fluidization, pass into middle pressure steam to slurry in pipe and be heated to 95 DEG C, add the oxygen of 22KG/ ton oven dry stock amount through oxygen mixer, pressure is 1.0Mpa, be transported to oxygen delignification reactor, keep pressure 0.40Mpa to stop and within 80 minutes, make the abundant delignification reaction of this slurry.After having reacted, this slurry is spurted to stock tank and by clear water diluted concentration to 3%, carry out two sections of pulp washings, adjusting concentration to 15% with ZX111 drum washer (series connection secondary method).Carry out secondary oxygen delignification reaction (technique is the same).
Washing is discongested
After having reacted, this slurry is spurted to stock tank and use clear water diluted concentration to 3%, carry out three sections of pulp washings with ZX111 drum washer (series connection secondary method), regulate concentration to 5%, further discongest with XZJ21 type deflaker, obtain described brown stock, beating degree 35SR, whiteness is 59%ISO, fiber is long 2.10mm all, and fiber is wide 0.030mm all.
The processing of pulp modifying
(1) slurry after discongesting, through the concentration of the high dense press master simmer down to 20% of FLD type, is transported to the vertical high density hydraulic pulper of ZGS II-20 type, and water temperature is controlled at 40 DEG C.
(2) use quaternary ammonium salt debonding agent LS-170kg according to slurry per ton, dilute with water concentration is the solution of 4% (quality), and temperature is 90 DEG C.
(3) debonding agent solution is joined in high-concentration pulper, allow itself and slurry fully mix slaking 45 minutes.Then add PCC leavening agent (light calcium carbonate fine powder), PCC addition is 3% of oven dry stock amount, then adds vapour bar P47 retention agent, and vapour bar P47 addition is 0.015% of oven dry stock amount, fully mixes with slurry.
Dry, the packaging of true qualities Time of Fluff Slurry
Slurry is dewatered with LX950 type centrifugal drier, the slurry after dehydration is transported to crawler type dryer and dries, and obtains the loose slurry of described true qualities Time of Fluff Slurry.Employing packing manner packaging.
Moisture 7%, bursting strength 0.21KPam
2/ g, whiteness 56%ISO, dry bulking intensity 20.0c m
2/ g, absorbent time 6.5S, water absorption 8.9g/g, fiber is long 2.10mm all, and fiber is wide 0.030mm all, and sanitary index meets national standard, carrene etc., and harmful chemical detects.Above index all meets Time of Fluff Slurry standard GB/T/T21331-2008.
Embodiment 3
Oxygen delignification
Venus board true qualities needlebush pulpboard is buied through high density hydraulic pulper size degradation in market, starch and be densely adjusted to 15%, by conveying worm, the Adlerika of the NaOH of oven dry stock amount 3% and oven dry stock amount 1.5% is fully mixed with slurry, pass into low-pressure steam and be heated to 70 DEG C and be transported to middle underflow pipe.This slurry is in the modifier treatment of middle underflow Guan Zhongxian process, the air of getting rid of in slurry makes it fluidization, pass into middle pressure steam to slurry in pipe and be heated to 93 DEG C, add the oxygen of 22KG/ ton oven dry stock amount through oxygen mixer, pressure is 1.0Mpa, be transported to oxygen delignification reactor, keep pressure 0.40Mpa to stop 80 minutes, make the abundant delignification reaction of this slurry.
Washing is discongested
After having reacted, this slurry is spurted to stock tank and use clear water diluted concentration to 3%, with ZX111 drum washer (series connection secondary method) pulp washing, regulate concentration to 5%, further discongest with XZJ21 type deflaker, obtain described brown stock, beating degree 33SR, whiteness is 54%ISO, fiber is long 3.87mm all, and fiber is wide 0.047mm all.
The processing of pulp modifying
(1) slurry after discongesting, through the concentration of the high dense press master simmer down to 20% of FLD type, is transported to the vertical high density hydraulic pulper of ZGS II-20 type, and water temperature is controlled at 40 DEG C.
(2) use quaternary ammonium salt debonding agent LS-170kg according to slurry per ton, dilute with water concentration is the solution of 4% (quality), and temperature is 90 DEG C.
(3) debonding agent solution is joined in high-concentration pulper, allow itself and slurry fully mix slaking 45 minutes.Then add PCC leavening agent (light calcium carbonate fine powder), PCC addition is 3% of oven dry stock amount, then adds vapour bar P47 retention agent, and vapour bar P47 addition is 0.01596 of oven dry stock amount, fully mixes with slurry.
Dry, the packaging of true qualities Time of Fluff Slurry
Slurry is dewatered with LX950 type centrifugal drier, the slurry after dehydration is transported to crawler type dryer and dries, and obtains the loose slurry of described Time of Fluff Slurry.Pack by packing manner.
Moisture 7%, bursting strength 0.21KPam
2/ g, whiteness 56%ISO, dry bulking intensity 20.0cm
2/ g, absorbent time 6.5S, water absorption 8.9g/g, fiber is long 3.871m all, and fiber is wide 0.047mm all, and sanitary index meets national standard, carrene etc., and harmful chemical detects.Above index all meets Time of Fluff Slurry standard GB/T/T21331-2008.
Can find out, true qualities Time of Fluff Slurry is not subject to the infringement of bleaching agent to fiber, and fibre length and tenacity of fibre are all better than bleached pulp, and not containing residual harmful substance in bleaching process, indices has has all met or exceeded the standard of bleaching Time of Fluff Slurry.Truly accomplish environmental protection, health, thing U.S., practicality, and greatly reduced production cost.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (2)
1. a true qualities Time of Fluff Slurry, is characterized in that raw materials is in process of production without bleaching, do not add brightening agent, not adding developer; Described true qualities Time of Fluff Slurry whiteness is 45-60%ISO, natural true qualities, environmental protection, health.
2. true qualities Time of Fluff Slurry according to claim 1, it is characterized in that described true qualities Time of Fluff Slurry, for not bleaching string, includes but not limited to: do not bleach wooden fibrid, do not bleach fibers in grass class, do not bleach bast fibers, do not bleach leaf fibrid, do not bleach kind of a wool fibre, do not bleach bamboo fibrid;
Wood fibrid raw material: needle-leaved wood fibre raw material (as: dragon spruce, fir, Chinese hemlock spruce, larch, Korean pine, masson pine, pinus yunnanensis etc.), broad-leaved wood fiber raw material (as: poplar, birch, Eucalyptus, maple, elm etc.);
Fibers in grass class raw material (as: straw, straw, reed, giantreed, bagasse, kaoliang stalk, cornstalk, cotton stalk etc.):
Bast fibers raw material (as: hemp, flax, jute, cotton stalk bark, bluish dogbane skin etc.);
Leaf fibrid raw material (as: Chinese alpine rush, sisal hemp, pineapple leaves etc.);
Plant wool fibre raw material (as: cotton, cotton linter etc.);
Bamboo fibrid raw material (as: mao bamboon, bambusa textile, cizu, fishscale bamboo, in vain press from both sides bamboo, west wind bamboo etc.).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410082004.9A CN103850145A (en) | 2014-03-07 | 2014-03-07 | Natural color fluff pulp and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410082004.9A CN103850145A (en) | 2014-03-07 | 2014-03-07 | Natural color fluff pulp and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN103850145A true CN103850145A (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410082004.9A Pending CN103850145A (en) | 2014-03-07 | 2014-03-07 | Natural color fluff pulp and preparation method thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN103850145A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195868A (en) * | 2014-07-24 | 2014-12-10 | 四川省西龙生物质材料科技有限公司 | Natural-color fuzzy bamboo pulp with high bacteriostatic activity and preparation method thereof |
| CN104213458A (en) * | 2014-07-24 | 2014-12-17 | 四川省西龙生物质材料科技有限公司 | Original-color bamboo fiber pulp, preparation method thereof and an application of the bamboo fiber pulp as tobacco additive |
| CN104605994A (en) * | 2015-01-27 | 2015-05-13 | 盐城工业职业技术学院 | Paper diaper made of pineapple fibers |
| CN104983517A (en) * | 2015-07-14 | 2015-10-21 | 盐城工业职业技术学院 | Paper diaper made from banana fiber mixed material |
| CN105401477A (en) * | 2015-10-28 | 2016-03-16 | 昆明理工大学 | Method for improving beating degree and strength through intensive defibering |
| CN106223094A (en) * | 2016-07-29 | 2016-12-14 | 云南新平南恩糖纸有限责任公司 | Mixed pulp paper technology |
| CN106342697A (en) * | 2016-08-26 | 2017-01-25 | 芜湖悠派护理用品科技股份有限公司 | Antibacterial pet urine pad core preparing method |
| SE1951006A1 (en) * | 2019-09-04 | 2021-03-05 | Stora Enso Oyj | Fluff pulp from oxygen delignified pulp |
| CN112726015A (en) * | 2020-12-30 | 2021-04-30 | 苏州美森无纺科技有限公司 | Forming process of wood pulp composite material |
| CN113789680A (en) * | 2021-09-16 | 2021-12-14 | 浙江理工大学 | Bamboo fiber fluff pulp and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4065347A (en) * | 1975-02-26 | 1977-12-27 | Molnlycke Ab | Method of producing fluffed pulp |
| CN1103124A (en) * | 1994-06-17 | 1995-05-31 | 重庆西泉造纸厂 | Bamboo material fibre fluff pulp and making method |
| CN101429733A (en) * | 2008-12-04 | 2009-05-13 | 余钢纲 | Bamboo wood dissolving pulp manufacturing process |
| CN101451319A (en) * | 2007-12-05 | 2009-06-10 | 山东泉林纸业有限责任公司 | Low brightness pulp prepared by ammonium sulfite steam cooking straw raw material, preparation method thereof and use thereof |
| WO2013013006A1 (en) * | 2011-07-20 | 2013-01-24 | International Paper Company | Substrate for wallboard joint tape and process for making same |
-
2014
- 2014-03-07 CN CN201410082004.9A patent/CN103850145A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4065347A (en) * | 1975-02-26 | 1977-12-27 | Molnlycke Ab | Method of producing fluffed pulp |
| CN1103124A (en) * | 1994-06-17 | 1995-05-31 | 重庆西泉造纸厂 | Bamboo material fibre fluff pulp and making method |
| CN101451319A (en) * | 2007-12-05 | 2009-06-10 | 山东泉林纸业有限责任公司 | Low brightness pulp prepared by ammonium sulfite steam cooking straw raw material, preparation method thereof and use thereof |
| CN101429733A (en) * | 2008-12-04 | 2009-05-13 | 余钢纲 | Bamboo wood dissolving pulp manufacturing process |
| WO2013013006A1 (en) * | 2011-07-20 | 2013-01-24 | International Paper Company | Substrate for wallboard joint tape and process for making same |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104195868B (en) * | 2014-07-24 | 2017-01-18 | 四川环龙新材料有限公司 | Natural-color fuzzy bamboo pulp with high bacteriostatic activity and preparation method thereof |
| CN104213458A (en) * | 2014-07-24 | 2014-12-17 | 四川省西龙生物质材料科技有限公司 | Original-color bamboo fiber pulp, preparation method thereof and an application of the bamboo fiber pulp as tobacco additive |
| CN104195868A (en) * | 2014-07-24 | 2014-12-10 | 四川省西龙生物质材料科技有限公司 | Natural-color fuzzy bamboo pulp with high bacteriostatic activity and preparation method thereof |
| CN104213458B (en) * | 2014-07-24 | 2017-04-19 | 四川环龙新材料有限公司 | Original-color bamboo fiber pulp, preparation method thereof and an application of the bamboo fiber pulp as tobacco additive |
| CN104605994A (en) * | 2015-01-27 | 2015-05-13 | 盐城工业职业技术学院 | Paper diaper made of pineapple fibers |
| CN104983517A (en) * | 2015-07-14 | 2015-10-21 | 盐城工业职业技术学院 | Paper diaper made from banana fiber mixed material |
| CN105401477A (en) * | 2015-10-28 | 2016-03-16 | 昆明理工大学 | Method for improving beating degree and strength through intensive defibering |
| CN106223094A (en) * | 2016-07-29 | 2016-12-14 | 云南新平南恩糖纸有限责任公司 | Mixed pulp paper technology |
| CN106342697A (en) * | 2016-08-26 | 2017-01-25 | 芜湖悠派护理用品科技股份有限公司 | Antibacterial pet urine pad core preparing method |
| SE1951006A1 (en) * | 2019-09-04 | 2021-03-05 | Stora Enso Oyj | Fluff pulp from oxygen delignified pulp |
| WO2021044321A1 (en) * | 2019-09-04 | 2021-03-11 | Stora Enso Oyj | Fluff pulp |
| SE543640C2 (en) * | 2019-09-04 | 2021-05-11 | Stora Enso Oyj | Fluff pulp from oxygen delignified pulp |
| CN114302991A (en) * | 2019-09-04 | 2022-04-08 | 斯道拉恩索公司 | Fluff pulp |
| CN112726015A (en) * | 2020-12-30 | 2021-04-30 | 苏州美森无纺科技有限公司 | Forming process of wood pulp composite material |
| CN113789680A (en) * | 2021-09-16 | 2021-12-14 | 浙江理工大学 | Bamboo fiber fluff pulp and preparation method and application thereof |
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Application publication date: 20140611 |