CN100554533C - Bamboo, hemp composite cellulose pulp and manufacture method thereof - Google Patents
Bamboo, hemp composite cellulose pulp and manufacture method thereof Download PDFInfo
- Publication number
- CN100554533C CN100554533C CNB2006100209775A CN200610020977A CN100554533C CN 100554533 C CN100554533 C CN 100554533C CN B2006100209775 A CNB2006100209775 A CN B2006100209775A CN 200610020977 A CN200610020977 A CN 200610020977A CN 100554533 C CN100554533 C CN 100554533C
- Authority
- CN
- China
- Prior art keywords
- pulp
- bamboo
- fibre
- oven dry
- manufacture method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Paper (AREA)
Abstract
The invention discloses a kind of composite cellulose pulp and manufacture method thereof of mixing production by fiber crops, bamboo.Composite cellulose pulp is made by fiber crops, bamboo wood combination.Manufacturing step is: condiment, wash that material, washing, making beating are discongested, mixing, removal of impurities washing, pre-acid, pre-chlorine, bleaching, acid treatment, removal of impurities washing, manufacture paper with pulp.The present invention proposes the new approaches of New Viscose Fibre pulp and production thereof, can be effectively the advantage of bamboo wood, fibrilia raw material be put together, select the essence, discarding dross, provide and be satisfied with viscose and show different performance, different class needs the pulp raw material.
Description
Technical field
The present invention relates to a kind of field of textiles that is used for, utilize the composite cellulose pulp and the manufacture method thereof of natural bamboo, numb raw material production.
Background technology
Along with improving constantly of living standard, dress is warm from satisfying, needs attractive in appearance are transferred to and pursued comfortable, environmental protection, healthy needs to the requirement of dressing for people.At present all be to adopt the single cotton pulp dregs of rice, wood pulps, bamboo pulp, hemp dissolving pulp to make viscose.
Yet, the viscose of each single raw material production such as hemp dissolving pulp, bamboo pulp, the performance dullness, show that individual character is not outstanding, performance has nothing in common with each other, and has their own characteristics each, as deflection, antibacterial bacteriostatic function, fiber soft feeling, deodorization, gas permeability, coloring, the bounce-back of skin affinity, fiber, humidity absorption and releases etc., therefore the viscose of single pulp production can't satisfy people's multiple demand.Find that after deliberation two kinds of raw materials are made the compound cellulose pulp, can improve the various performances of fiber, maximize favourable factors and minimize unfavourable ones, and remedy each other, and the premium properties of every kind of fiber is represented.Adopt this compound cellulose pulp that the natural compounding type that production performance is many, moral character is high viscose can be provided, satisfy the living needs that people's realization grows with each passing hour.
The existing technological process of adopting raw materials such as bamboo, numb material to prepare composite cellulose pulp is: the material → prehydrolysis → boiling → batch turning of getting the raw materials ready → blank → screen → wash → wash expects → screens → discongest → and desanding → concentrated → chlorination, wash material → alkali refining, wash and expect → bleach, wash material → acid treatment → desanding → concentrate → manufacture paper with pulp.This technology only is only applicable to the single cellulose viscose pulp of single raw material preparing, can't adapt to the production of composite cellulose pulp, in alpha cellulose content, whiteness, aspects such as viscosity, ash, iron content and filterability can't satisfy the specification requirement that reaches the composite viscose fiber pulp.
If after production is finished, carry out it compound again each single pulp, by contrast, the compound pulp viscosity profile of many raw material production that the present invention proposes is more even, the cellulose of effectively purifying, more can effectively remove the easier embodiment of good characteristic that non-cellulosic impurity, various raw material possess itself, and performance is more stable.
Summary of the invention
The purpose of this invention is to provide by bamboo, fiber crops and mix the compound cellulose pulp and the manufacture method thereof of producing, the new approaches of New Viscose Fibre pulp and production thereof have been proposed, can be effectively the advantage of bamboo, fibrilia raw material be put together, select the essence, discarding dross, provide and be satisfied with viscose and show different performance, different class (as different skin affinity, different fiber deflection, different antibacterial bacteriostatic, different fiber soft feeling, different deodorization, different gas permeability, different coloring, different elasticity ratio, different humidity absorption and releases etc.) needs the pulp raw material.In alpha cellulose content, whiteness, aspects such as viscosity, ash, iron content, filterability satisfy the requirement of producing viscose, and can better develop pulp and produce raw material, and it is in short supply to alleviate raw material, and the problem that cost is climbed to a higher point is successively met the need of market.
The technical solution adopted for the present invention to solve the technical problems is:
Bamboo, hemp composite cellulose pulp is characterized in that making pulp then and obtaining by mixing cotton fiber and flax fibre earlier, and wherein the percentage by weight of each component is:
Bamboo fibre 1%～99%
Flax fibre 1%～99%
Resulting pulp has following physical property:
Ash≤0.25%
Moisture 10.0 ± 0.5%
Iron content≤40ppm
Fat wax≤0.25%
Chlorine-bearing compound≤0.25%
Pectic substance pentosan≤0.25%
Lignin≤2.0%
Alpha cellulose 〉=85%
Viscosity 〉=8.0mpa.s
Whiteness 〉=60%
Constant volume weight 120～1020g/m
3
Inhale base number 200-970%
Swelling capacity 80-300%.
The range of application of compound cellulose pulp of the present invention: acetate fiber, copper ammonia fibre, viscose filament yarn, day silk, viscose short-thread, glassine paper, carbon fiber, CMC.
Bamboo of the present invention, hemp composite cellulose pulp manufacture method comprise the steps: condiment, boiling, wash material, washing, making beating are discongested, mixing, removal of impurities washing, pre-acid, pre-chlorine, bleaching, acid treatment, removal of impurities washing, manufacture paper with pulp.
The concrete manufacture method of compound cellulose pulp of the present invention is as follows:
A, condiment: bamboo, fibrilia raw material are got the raw materials ready according to said ratio, adjust structure;
B, boiling: bamboo adopts soda process, fiber crops to adopt sulfate process or sulfite cooking, presses 5.0～35.0% of oven dry weight and adds NaOH, Na
2S, Na
2SO
3, H
2SO
3In one or more, liquor ratio is 1: 1.0～9.5, boiling vacuumizes earlier, intensification number of times 〉=1 time, little steam bleeding number of times 〉=0 time;
C, wash material;
D, washing;
E, making beating are discongested: employing beater or fluffer are pulled an oar or are discongested, weight in wet base 5-50 gram;
F, mixing: above-mentioned slurry is mixed in stock tank, or mixing to a certain step of manufacturing paper with pulp from condiment;
G, removal of impurities washing;
H, pre-acid: with the acid amount is 0.2～10.0% of slurry oven dry weight, concentration 1.0～15.0%, pre-acid time 〉=5min;
I, pre-chlorine: chlorine dosage is 0.2～10.0% of a slurry oven dry weight, concentration 0.2～10.0%, pre-chlorine time 〉=15min;
J, bleaching: the viscosity of bleaching disposed slurry is 8～35mpa.s, first fibre 〉=80.0%, whiteness 〉=60%;
K, acid treatment: sulfuric acid or hydrochloric acid are pressed the slurry oven dry weight and are added 0.2～10.0%, and calgon is pressed the slurry oven dry weight and added 0.1～5.0%, processing time 〉=30min;
L, removal of impurities washing;
M, manufacture paper with pulp.
Press 0.3～10% of oven dry weight before the described cooking process and add NaOH, liquor ratio is that 1: 1.0～9.5 pairs raw materials are precooked.
The NaOH that adds a certain amount of concentration before the described washing procedure and be 5%-30% carries out alkali and analyses.
On the basis of technique scheme, be further energy consumption and the stable control quality of reducing, can also adopt one of following several technical measures or whole:
In the described precooking process, do not add alkali lye, directly feed steam.
In the described boiling step, boiling vacuumizes earlier, intensification number of times 〉=1 time, and little steam bleeding number of times 〉=0 time, heat up, temperature retention time≤800 minute in maximum temperature≤200 ℃ of at every turn heating up at every turn.
In the described boiling step, for improving the first fibre, press down bubble, the big gun that disappears, and reduce black liquor COD and colourity, press the MA-1 auxiliary agent that 0.1～3.0% of slurry oven dry weight adds the production of Chongqing long-lived digesting assistant factory.Document " Speciality Petrochemicals " the 6th phase of nineteen ninety-five " MA AA copolymer sodium salt is as the performance study of active washing assisant ", " printing and dyeing " third phase nineteen ninety-five " functional surface activating agent MA's is synthetic " two pieces of papers disclose the technology contents of MA surfactant, and the MA-1 that the present invention mentioned is a type product in the MA surfactants product.MA-1 type auxiliary agent is the cooking additive that is used to produce man-made fiber pulp and paper pulp, is a kind of anion surfactant.MA-1 type auxiliary agent is a white powder, alkalescence, soluble in water and aqueous slkali, non-foam when dissolving is stirred.The MA-1 auxiliary agent does not contain carcinogen, has efficient, nontoxic, automated biological degradation characteristic.Use the MA-1 auxiliary agent can reduce industrial chemicals consumption, reduce equipment corrosion, prolong digesting apparatus service life; Can protect fiber effectively, stop the fiber peeling reaction, the fine content height of pulping first, yield height.And it is healthy to help the operator; Can degrade by automated biological, help environmental protection, have social benefit widely.
The novel pulp that adopts the manufacture method of above-mentioned production bamboo, hemp composite cellulose pulp to produce, its ash≤0.25%, moisture 10.0 ± 0.5%, iron content≤40ppm, fatty wax≤0.25%, chlorine-bearing compound≤0.25%, pectic substance pentosan≤0.25, lignin≤0.25, alpha cellulose 〉=85%, viscosity 〉=12 centipoises, whiteness 〉=60%, constant volume weight 690～920g/m3 inhales base number 500-670%, swelling capacity 150-300%.
The invention has the beneficial effects as follows: with bamboo, the compound composite cellulose pulp of making of fibrilia raw material, both expanded the raw material sources of dimension card fiber in the pulp production process, and solved the problem that production efficiency is low, cost is high again.Advantage with bamboo, fibrilia raw material puts together effectively, selects the essence, discarding dross, and shortens the processing time and cut down the consumption of energy, thereby help reducing production costs, and improves the quality.Beautiful through the composite fibre gloss that spinning makes, have natural good coloring, bounce-back property, humidity absorption and release, gas permeability are better than various synthetic fiber especially, are a kind of fully natural green environment-friendly products.With the exception of this, compound slurry dimension card fiber also has the antibacterial bacteriostatic deodorant function and the texture of the uniqueness that simple use bamboo pulp, jute pulp dimension card fiber do not have.Slurry there be precooking of alkali, make the H of continuous generation
+Be neutralized, making precooks speeds up, and it is more abundant to precook, and has avoided the corrosion of acid to boiling vessel, has prolonged the service life of boiling vessel.After boiling, adopt alkali to analyse simultaneously, half fibre that produces in the digestion process is dissolved in alkali, thereby reaches the cellulosic purpose of purifying.The novel pulp of being produced has higher alpha cellulose content and whiteness, and viscosity is fit to needs, and ash and iron content are lower, and strainability is better.
The compound pulp of many raw material production that the present invention proposes is compared with the pulp that single pulp mixes it after production is finished again, viscosity profile is more even, the cellulose of effectively purifying, more can effectively remove the easier embodiment of good characteristic that non-cellulosic impurity, various raw material possess itself, and performance is more stable.
The specific embodiment
The invention will be further described below in conjunction with embodiment.On basis of the present invention, the those of ordinary skill in this technical field can both obtain following relevant art enlightenment: become composite cellulose pulp to be not restricted to the listed raw material of the present invention with natural bamboo, numb mixed raw material.
On basis of the present invention, the those of ordinary skill in this technical field can be realized purpose of the present invention in conjunction with other known property general knowledge.
The present invention is not limited only to the literal statement of claim literal, following being included in the scope of the present invention.
Embodiment 1
Composite cellulose pulp of the present invention is that its percentage by weight is: 1%: 99% by bamboo wood, compound the making of fiber crops.
The plain pulp of New-type composite fibre of the present invention by bamboo fibre, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Bamboo fibre 1%
Flax fibre 99%
Embodiment 2
Composite cellulose pulp of the present invention is that its percentage by weight is: 99%: 1% by bamboo wood, compound the making of fiber crops.
The plain pulp of New-type composite fibre of the present invention by bamboo fibre, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Bamboo fibre 99%
Flax fibre 1%
Embodiment 3
The plain pulp of New-type composite fibre is characterized in that: by bamboo, numb made according to following weight proportion combination, bamboo: fiber crops=50%: 50%.
The plain pulp of New-type composite fibre of the present invention by bamboo fibre, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Bamboo fibre 50%
Flax fibre 50%
Technical indicator of the present invention is:
Ash≤0.25%;
Moisture 10.0 ± 0.5%;
Iron content≤40ppm;
Fat wax≤0.25%;
Chlorine-bearing compound≤0.25%;
Pectic substance pentosan≤0.25%;
Lignin≤2.0%;
Alpha cellulose 〉=85%;
Viscosity 〉=8.0mpa.s;
Whiteness 〉=60%;
Constant volume weight 120～1020g/m3,
Inhale base number 200-970%;
Swelling capacity 80-300%.
Its manufacture method comprises the steps: condiment, washes material, washing, making beating are discongested, mixing, removal of impurities washing, pre-acid, pre-chlorine, bleaching, acid treatment, removal of impurities washing, manufacture paper with pulp.
Embodiment 4
A kind of composite cellulose pulp is characterized in that: by bamboo, numb made according to following weight proportion combination, bamboo: fiber crops=40%: 60%.
Composite cellulose pulp of the present invention by bamboo fibre, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Bamboo fibre 40%
Flax fibre 60%
Technical indicator of the present invention is:
Ash≤0.24%;
Moisture 10.0 ± 0.5%;
Iron content≤38ppm;
Fat wax≤0.25%;
Chlorine-bearing compound≤0.25%;
Pectic substance pentosan≤0.25%;
Lignin≤2.0%;
Alpha cellulose 〉=86%;
Viscosity 〉=8.5mpa.s;
Whiteness 〉=60%;
Constant volume weight 600～750g/m3,
Inhale base number 200-970%;
Swelling capacity 80-300%.
Embodiment 5
A kind of composite cellulose pulp is characterized in that: by bamboo, numb made according to following weight proportion combination, bamboo: fiber crops=30%: 70%.
Composite cellulose pulp of the present invention by bamboo fibre, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Bamboo fibre 30%
Flax fibre 70%
Technical indicator of the present invention is:
Ash≤0.25%
Moisture 10.0 ± 0.5%
Iron content≤40ppm
Fat wax≤0.25%
Chlorine-bearing compound≤0.25%
Pectic substance pentosan≤0.25%
Lignin≤2.0%
Alpha cellulose 〉=88%
Viscosity 〉=9.5mpa.s
Whiteness 〉=65%
Constant volume weight 550～750g/m
3
Inhale base number 500-670%
Swelling capacity 150-300%.
Embodiment 6
A kind of composite cellulose pulp is characterized in that: by bamboo, numb made according to following weight proportion combination, bamboo: fiber crops=10%: 90%.
Composite cellulose pulp of the present invention by bamboo fibre, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Bamboo fibre 10%
Flax fibre 90%
Technical indicator of the present invention is:
Ash≤0.25%
Moisture 10.0 ± 0.5%
Iron content≤40ppm
Fat wax≤0.25%
Chlorine-bearing compound≤0.25%
Pectic substance pentosan≤0.25%
Lignin≤2.0%
Alpha cellulose 〉=90%
Viscosity 〉=
Whiteness 〉=70%
Constant volume weight 690～920g/m3
Inhale base number 500-670%
Swelling capacity 150-300%.
Embodiment 7
The manufacture method of composite cellulose pulp of the present invention comprises the steps:
(1) condiment: bamboo, the plain raw material of flax fibre are prepared respectively, adjusted structure;
(2) precook: precook or not precook, precook, adopt rotary spherical digester, upright pot or boiling vessel, press 0.3～10% of oven dry weight and add NaOH, liquor ratio is 1: 1.0-9.5; Adopt to inject certain density (≤30%) alkali lye, intensification number of times 〉=1 time, little steam bleeding number of times 〉=0 time, heat up, temperature retention time≤650 minute in maximum temperature≤200 ℃ of at every turn heating up at every turn.
(3) boiling: bamboo adopts soda process, fiber crops to adopt sulfate process or sulfite cooking, presses 5.0～35.0% of oven dry weight and adds NaOH, Na
2S, Na
2SO
3, H
2SO
3In one or more, liquor ratio is 1: 1.0～9.5, boiling vacuumizes earlier, intensification number of times 〉=1 time, little steam bleeding number of times 〉=0 time, heat up, temperature retention time≤800 minute in maximum temperature≤200 ℃ of at every turn heating up at every turn.
For improving the first fibre, press down bubble, the big gun that disappears, and reduce black liquor COD and colourity, press the MA-1 auxiliary agent that 0.1～3.0% of slurry oven dry weight adds the production of Chongqing long-lived paper making additive factory.
(4) wash material: adopt CX sieve, jumping sieve, selectifier to screen, and by the diffuser washing, vacuum pulp washing machine series connection washing, pressure measurement thickener wash, belt pulp washing machine washing carrying out washing impurity-removing.
(5) alkali is analysed: adopt alkali to analyse after boiling, add the NaOH that a certain amount of concentration is 5%-30%, half fibre that produces in the digestion process is dissolved in alkali, thereby reach the cellulosic purpose of purifying.
(6) washing: by the diffuser washing, vacuum pulp washing machine series connection washing, the washing of pressure measurement thickener, belt pulp washing machine washing carrying out washing impurity-removing.
(7) making beating is discongested: employing beater or fluffer are pulled an oar or are discongested, weight in wet base 5-50 gram;
(8) mix: above-mentioned slurry is mixed in stock tank; Or mixing to a certain step of manufacturing paper with pulp from condiment.A certain step between those of ordinary skills follow after understanding content of the present invention and blend step can be placed on condiment and manufacture paper with pulp according to actual conditions is mixed, such as the bleaching process rear end.
(9) removal of impurities washing: equipment adopts 606 desanders, high concentration desanding device, heavy desander, lightweight desander etc.Concentration: 0.2-2.5%, pressure 〉=0.25Mpa.
(10) pre-acid: with the acid amount is 0.2～10.0% of slurry over dry, concentration 1.0～15.0%, pre-acid time 〉=5min, concentration 1.0-15.0%.
(11) pre-chlorine: chlorine dosage is 0.2～10.0% of a slurry over dry, concentration 0.2～10.0%, pre-chlorine time 〉=15min;
(12) bleaching: continue to remove lignin and coloring matter, with the reaction of lignin mainly be oxidative degradation, and the chlorination substitution reaction is arranged, the coloring matter generation oxidation with in the paper pulp is faded it, reaches certain whiteness requirement; And the viscosity and the degree of polymerization of adjustment pulp.
At first, bleach, promptly press the slurry over dry and add 0.5.0～15.0% clorox with hypochlorous acid, processing time 〉=20min, concentration: 1.0～18.0%, transfer alkali 15～350g/m
3, 10～75 ℃ of temperature.
Secondly, use hydrogen peroxide bleaching again, promptly press the slurry oven dry weight and add 0.5～15.0% hydrogen peroxide, transfer alkali 30～150g/m
3
(13) acid treatment: sulfuric acid or hydrochloric acid are pressed the slurry oven dry weight and are added 0.2～10.0%, and calgon is pressed the slurry oven dry weight and added 0.1～5.0%, processing time 〉=30min; Gained pulp methyl fiber 〉=80%, viscosity 8.0～35map.s, ash content≤0.25%, irony≤40ppm, whiteness 〉=60%.
(14) removal of impurities washing: equipment adopts 606 desanders, high concentration desanding device, heavy desander, lightweight desander etc.
Concentration: 0.2-2.5%, pressure 〉=0.25Mpa.
(15) manufacture paper with pulp:
The manufacture method that adopts the present invention to produce bamboo, hemp composite cellulose pulp can be produced the pulp of the production needs that can satisfy viscose, acetate fiber, copper ammonia fibre, Tencel (day silk), glassine paper, carbon fiber, CMC artificial fibres such as (cellulose ethers).This method puts together the advantage of bamboo, fibrilia raw material effectively, selects the essence, discarding dross, and shortens the processing time and cut down the consumption of energy, thereby help reducing production costs, and improves the quality.
Embodiment 8
Raw material is chosen after the outfit, precooks: alkali charge 0.3%, liquor ratio 1: 2.8, heating-up time 100min, 167 ℃ of holding temperatures, temperature retention time 90min; Boiling: alkali charge 26%, liquor ratio 1: 3.2, heating-up time 120min, 167 ℃ of holding temperatures, temperature retention time 220min; The pre-chlorine of pre-acid: the hydrochloric acid consumption is a slurry oven dry weight 2.5%, and time 20min, clorox consumption are 1.5% of slurry oven dry weight, time 40min.Sodium hypochlorite bleaching: transfer alkali 85g/m
3, inferior chlorine consumption is 1.2% of a slurry oven dry weight, 44 ℃ of temperature, time 60min; Hydrogen peroxide bleaching: transfer alkali 90g/m3,60 ℃ of temperature, the hydrogen peroxide consumption is 2.3% of a slurry oven dry weight, stabilizing agent dosage is 1.0% of a slurry oven dry weight, time 100min; Acid treatment: the hydrochloric acid consumption is 1.6% of a slurry oven dry weight, time 50min.Pulp finished product detection result: viscosity 12.7mpa.s, first fibre 95.8%, ash 0.07%, irony 8ppm, whiteness 82% is inhaled base number 580%, swelling capacity 175%, quantitatively 768g/m
2, moisture 10.3%.
Embodiment 9
Raw material is chosen after the outfit, precooks: alkali charge 0.5%, liquor ratio 1: 3.6, heating-up time 100min, 167 ℃ of holding temperatures, temperature retention time 80min; Boiling: alkali charge 28%, liquor ratio 1: 3.5, heating-up time 120min, 169 ℃ of holding temperatures, temperature retention time 230min; The pre-chlorine of pre-acid: the hydrochloric acid consumption is 2.5% of a slurry oven dry weight, and time 20min, clorox consumption are 0.7% of slurry oven dry weight, time 40min.Sodium hypochlorite bleaching: transfer alkali 80g/m3, the clorox consumption is 0.5% of a slurry oven dry weight, 45 ℃ of temperature, time 60min; Hydrogen peroxide bleaching: transfer alkali 90g/m3,55 ℃ of temperature, the hydrogen peroxide consumption is 1.7% of a slurry oven dry weight, stabilizing agent dosage is 1.0% of a slurry oven dry weight, time 90min; Acid treatment: the hydrochloric acid consumption is 1.8% of a slurry oven dry weight, time 50min.Pulp finished product detection result: viscosity 12.3mpa.s, first fibre 91.2%, ash 0.12%, irony 15ppm, whiteness 75% is inhaled base number 560%, swelling capacity 175%, quantitatively 770g/m
2, moisture 10.4%.
Embodiment 10
Raw material is chosen after the outfit, precooks: alkali charge 0.8%, liquor ratio 1: 4.0, heating-up time 100min, 165 ℃ of holding temperatures, temperature retention time 60min; Boiling: alkali charge 30%, liquor ratio 1: 4.0, heating-up time 120min, 170 ℃ of holding temperatures, temperature retention time 240min; The pre-chlorine of pre-acid: the hydrochloric acid consumption is 1.5% of a slurry oven dry weight, and time 20min, clorox consumption are 1.2% of slurry oven dry weight, time 40min.Sodium hypochlorite bleaching: transfer alkali 80g/m3, the clorox consumption is 0.4% of a slurry oven dry weight, 47 ℃ of temperature, time 60min; Hydrogen peroxide bleaching: transfer alkali 90g/m3,50 ℃ of temperature, the hydrogen peroxide consumption is 1.0% of a slurry oven dry weight, stabilizing agent dosage is 1.0% of a slurry oven dry weight, time 70min; Acid treatment: the hydrochloric acid consumption is 2.0% of a slurry oven dry weight, time 40min.Pulp finished product detection result: viscosity 13.3mpa.s, first fibre 88.6%, ash 0.18%, irony 32ppm, whiteness 71% is inhaled base number 563%, swelling capacity 170%, quantitatively 750g/m
2, moisture 10.1%.
Embodiment 11
The manufacture method of the foregoing description 7～10 is applicable to the preparation of embodiment 1 to embodiment 6 described composite cellulose pulp.
Embodiment 12
Composite cellulose pulp QUALITY STANDARD of the present invention such as following table:
Embodiment 13
The specification that described compound cellulose pulp is made a kind of composite cellulose viscose filament yarn is as described below:
(D is a Denier unit to fiber number specification: 60～1200D: the dawn);
Monofilament radical: 10～200 (the monofilament radical is consistent with the spinning head hole count);
Include light, semimat, full-dull and painted silk;
The strand shape comprises conventional silk, flat filament and other shaped filaments.
The technical indicator of the composite cellulose viscose filament yarn that the composite fibre viscose glue pulp that makes by the present invention further makes comprises:
Do fracture strength: 1.95-2.1CN/dtex
Wet breaking strength: 1.05-1.27CN/dtex
Dried elongation at break: 18.6%-20.0%
Fineness deviation ratio :-1.1%-+0.8%
Whiteness: 71.6%-74.3%
Residual sulfur content: 7.2%-9.3%
Regain: 12.0%-12.3%
Oil content: 0.5%-0.7%.
Embodiment 14
The processing step of the composite cellulose viscose filament yarn that the composite fibre viscose glue pulp that utilizes the present invention to make further makes: mix the dregs of rice, dipping, squeezing, pulverizing, yellow, viscose glue pulverizing, dissolving, grinding, filtration, maturation, deaeration, spinning, refining, oven dry and become tube.
The above-mentioned mixed dregs of rice, dipping, squeezing, pulverizing, experienced operation are meant: the compound cellulose pulp through mixing the dregs of rice is immersed under 30～50 ℃ temperature conditions in the alkali lye that concentration is 200～240g/L, again after the squeezer squeezing, pulverizing, reaching in the alkali fibre the fine content of first is 26～33%, alkali content is 15～18%, and density is 100～150Kg/m
3Add the VIF-64 modifying agent that can improve the compound cellulose reactivity worth during dipping.Adopt the secondary temperature elevation control method during dipping, improved the reactivity worth of compound cellulose, effectively improve its reaction effect.Use spray equipment to add the VIF-9 stabilizing agent that improves the compound cellulose degree of polymerization in the expressing process, make that to fall collecting process more uniform and stable, the fine stable polymerization degree homogeneous of alkali.2000～3000 rev/mins of pulverization rollers that rotate at a high speed of employing make compound cellulose alkali fibre obtain good crushing effect during pulverizing, guarantee the abundant of yellow reaction.Experienced operation is used the experienced machine of belt, guarantees that the alkali fibre that enters experienced machine carries out according to first in first out, makes the fine chain rupture of compound cellulose alkali even, the fine stable polymerization degree homogeneous of alkali.
Above-mentioned yellow, dissolution process adopt dry method constant temperature yellow method, and dry method constant temperature yellow method is meant: the CS that adds α-cell (methylcellulose) 26～35% in the relative alkali fibre in the alkali fibre
2(carbon disulfide), yellow temperature are 26～32 ℃, and the yellow time is 30～80 minutes.Add CS
2Shi Caiyong circulating line and spray equipment evenly add, and make CS
2In compound cellulose alkali fibre, fully mix.After yellow, add the VIF-51/41 denaturant that improves viscose filtration performance and spinning property, effectively improve the strainability and the spinning property of compound cellulose viscose glue.The alkali lye total amount that yellow need add (forming calculating according to viscose glue) is divided 3 adding xanthating machines, and the last 30% pair of xanthating machine that adds total amount behind xanthating machine material clearancen washes.Adopt the viscose glue pulverizer to carry out coarse crushing after the yellow, under 6～15 ℃ temperature, dissolve, make viscose glue reach good solute effect.
Above-mentioned spinning process is meant: will carry out regeneration, drawing-off, cellulose macromolecule crystallization and rearrangement, the wire strip forming of composite fibre cellulose fiber through the viscose glue of dissolving, deaeration, filtration with continuous spinning machine or semi-continuous spinning machine.
The viscose glue that the compound cellulose that above-mentioned spinning process adopted makes comprises following feature: α-cell (methylcellulose) content: 7.8～8.20%; NaOH content is: 5.90～6.25%; Viscosity (falling ball method) is: 28～45 seconds; Degree of ripeness (NH4Cl value): 8.6～11.0ml; Population (in every milliliter of viscose glue 〉=10 micro particles numbers) be :≤1500; The secondary blob of viscose is: (number in every milliliter of viscose glue) is :≤10; The viscose glue surface tension is: 40～50dynes/cm; Esterification degree: 35～45.Owing to adopted above-mentioned feature, the viscose glue that makes compound cellulose make has possessed good spinning properties, can produce high-quality viscose filament yarn.
The acid bath that above-mentioned spinning process adopted comprises following feature: H
2SO
4Content (54 ℃ time measure) is: 130～150g/l; ZnSO
4Content (54 ℃ time measure) is: 10-13g/l; Na
2SO
4Content (54 ℃ time measure) is: 220～265g/l; The acid bath temperature is: 51～56 ℃; The acid bath surface tension is: 40～50dynes/cm.Used denaturant VIF-53 and VIF-10 in acid bath, stabilizing agent VIF-70 has effectively improved the acid bath characteristic, and acid bath is suitable for and the supporting spinning properties of compound cellulose viscose glue.
Above-mentioned concise operation is meant: in washing facility spinning cake or strand are carried out desulfurization, bleach and oil.Ao's mixture VIF-80 that strengthens composite fibre cellulose fiber desulfurization performance and the hardening agent VIF-90 that strengthens discoloration have been used in the refining process.This method is adopted in refining, has effectively improved composite fibre cellulose fiber refining effect, and character such as fiber sulfur-bearing, whiteness are effectively improved.
Claims (7)
1, bamboo, hemp composite cellulose pulp, it is characterized in that making pulp then and obtaining by mixing bamboo fibre and flax fibre earlier, wherein the percentage by weight of each component is: bamboo fibre 1%～99%, flax fibre 1%～99%, resulting pulp has following physical property:
Ash≤0.25%
Moisture 10.0 ± 0.5%
Iron content≤40ppm
Fat wax≤0.25%
Chlorine-bearing compound≤0.25%
Pectic substance pentosan≤0.25%
Lignin≤2.0%
Alpha cellulose 〉=85%
Viscosity 〉=8.0mpa.s
Whiteness 〉=60%
Constant volume weight 120～1020g/m
3
Inhale base number 200-970%
Swelling capacity 80-300%.
2, bamboo, hemp composite cellulose pulp manufacture method is characterized in that: concrete manufacture method is as follows:
A, condiment: according to bamboo fibre 1%～99%, flax fibre 1%～99% proportioning is got the raw materials ready, and adjusts structure;
B, boiling: bamboo adopts soda process, fiber crops to adopt sulfate process or sulfite cooking, presses 5.0～35.0% of oven dry weight and adds NaOH, Na
2S, Na
2SO
3, H
2SO
3In one or more, liquor ratio is 1: 1.0～9.5, boiling vacuumizes earlier, intensification number of times 〉=1 time, little steam bleeding number of times 〉=0 time;
C, wash material;
D, washing;
E, making beating are discongested: employing beater or fluffer are pulled an oar or are discongested, weight in wet base 5-50 gram;
F, mixing: above-mentioned slurry is mixed in stock tank, or mixing to a certain step of manufacturing paper with pulp from condiment;
G, removal of impurities washing;
H, pre-acid: with the acid amount is 0.2～10.0% of slurry oven dry weight, concentration 1.0～15.0%, pre-acid time 〉=5min;
I, pre-chlorine: chlorine dosage is 0.2～10.0% of a slurry oven dry weight, concentration 0.2～10.0%, pre-chlorine time 〉=15min;
J, bleaching: the viscosity of bleaching disposed slurry is 8～35mpa.s, first fibre 〉=80.0%, whiteness 〉=60%;
K, acid treatment: sulfuric acid or hydrochloric acid are pressed the slurry oven dry weight and are added 0.2～10.0%, and calgon is pressed the slurry oven dry weight and added 0.1～5.0%, processing time 〉=30min;
L, removal of impurities washing;
M, manufacture paper with pulp.
3, compound cellulose pulp manufacture method according to claim 2 is characterized in that: press 0.3～10% of oven dry weight before the described cooking process and add NaOH, liquor ratio is that 1: 1.0～9.5 pairs raw materials are precooked.
4, compound cellulose pulp manufacture method according to claim 2 is characterized in that: the NaOH that adds a certain amount of concentration before the described washing procedure and be 5%-30% carries out alkali and analyses.
5, compound cellulose pulp manufacture method according to claim 2 is characterized in that: feed steam feed before the described cooking process and precook.
6, compound cellulose pulp manufacture method according to claim 2, it is characterized in that: in the described boiling step, boiling vacuumizes earlier, the employing one or many heats up, little steam bleeding number of times 〉=0 time, heat up, temperature retention time≤800 minute in maximum temperature≤200 ℃ of at every turn heating up at every turn.
7, compound cellulose pulp manufacture method according to claim 2 is characterized in that: in the described boiling step, press 0.1～3.0% of slurry oven dry weight and add the MA-1 auxiliary agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100209775A CN100554533C (en) | 2006-05-08 | 2006-05-08 | Bamboo, hemp composite cellulose pulp and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100209775A CN100554533C (en) | 2006-05-08 | 2006-05-08 | Bamboo, hemp composite cellulose pulp and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1844502A CN1844502A (en) | 2006-10-11 |
| CN100554533C true CN100554533C (en) | 2009-10-28 |
Family
ID=37063472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100209775A Expired - Fee Related CN100554533C (en) | 2006-05-08 | 2006-05-08 | Bamboo, hemp composite cellulose pulp and manufacture method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100554533C (en) |
-
2006
- 2006-05-08 CN CNB2006100209775A patent/CN100554533C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1844502A (en) | 2006-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102162150B (en) | Towel gourd viscose fiber and preparation method thereof | |
| CN100355955C (en) | Cotton-wood-bamboo composite cellulose pulp and method for producing same | |
| CN101449942A (en) | Natural color sanitary paper and preparation method thereof | |
| CN104911726B (en) | Extinction superfine high-strength low-elongation viscose fiber and preparation method thereof | |
| CN100449039C (en) | Cotton and wood composite cellulose pulp and method for producing same | |
| CN102182090A (en) | Composite pulp of paper pulp and cotton linter and preparation method thereof | |
| CN100355954C (en) | Cotton and bamboo composite cellulose pulp and method for producing same | |
| CN101280466A (en) | Hemp dissolving pulp for chemical fabrics and production method thereof | |
| CN101104958A (en) | Viscose fiber and its preparing method | |
| CN100355958C (en) | Wood and bamboo composite cellulose pulp and method for producing same | |
| CN101736427B (en) | Bamboo alpha-pulp for viscose and production method thereof | |
| CN104846453B (en) | Superfine viscose fiber and preparation method thereof | |
| CN100449040C (en) | Composite cellulose pulp and method for producing same | |
| CN102505547B (en) | Cotton pulp with high polymerization degree and production method for cotton pulp | |
| CN104928786A (en) | Preparation process of semi-dull high-strength low-elongation viscose fiber | |
| CN101165234A (en) | Method for preparing viscose fiber from fast growing poplar | |
| CN104862802B (en) | Process method for preparing high-strength low-elongation viscose fibers | |
| CN100355959C (en) | Cotton and hemp composite cellulose pulp and method for producing same | |
| CN100355956C (en) | Cotton wood hemp bamboo composite cellulose pulp and mfg. process thereof | |
| CN100554533C (en) | Bamboo, hemp composite cellulose pulp and manufacture method thereof | |
| CN104846458A (en) | Semi-dull high-strength low-elongation viscose fiber and preparation method and application thereof | |
| CN101130885A (en) | Hemp-material viscose fiber and preparing method thereof | |
| CN102220719A (en) | Corncob husk pulp for chemical fibers and preparation method thereof | |
| CN100415956C (en) | Broussonetia papyrifera adhesive filament and preparation method thereof | |
| CN100355957C (en) | Cotton wood hemp composite cellulose pulp and mfg. process thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Yibin Changyi Pomace Co., Ltd. Assignor: Siliya Co., Ltd., Yibin Contract record no.: 2011510000179 Denomination of invention: Bamboo hemp composite cellulose pulp and method for producing same Granted publication date: 20091028 License type: Exclusive License Open date: 20061011 Record date: 20110819 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091028 Termination date: 20150508 |
|
| EXPY | Termination of patent right or utility model |