CN1844501A - Wood hemp composite cellulose pulp and method for producing same - Google Patents
Wood hemp composite cellulose pulp and method for producing same Download PDFInfo
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- CN1844501A CN1844501A CN 200610020976 CN200610020976A CN1844501A CN 1844501 A CN1844501 A CN 1844501A CN 200610020976 CN200610020976 CN 200610020976 CN 200610020976 A CN200610020976 A CN 200610020976A CN 1844501 A CN1844501 A CN 1844501A
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- wood
- pulp
- cellulose pulp
- oven dry
- composite cellulose
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- 244000025254 Cannabis sativa Species 0.000 title claims abstract description 12
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 title claims abstract description 12
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 title claims abstract description 12
- 235000009120 camo Nutrition 0.000 title claims abstract description 12
- 235000005607 chanvre indien Nutrition 0.000 title claims abstract description 12
- 239000011487 hemp Substances 0.000 title claims abstract description 12
- 229920002678 cellulose Polymers 0.000 title claims description 61
- 239000001913 cellulose Substances 0.000 title claims description 61
- 239000002131 composite material Substances 0.000 title claims description 50
- 238000004519 manufacturing process Methods 0.000 title claims description 47
- 239000002023 wood Substances 0.000 title claims description 35
- 239000000835 fiber Substances 0.000 claims abstract description 70
- 238000000034 method Methods 0.000 claims abstract description 45
- 239000002002 slurry Substances 0.000 claims abstract description 43
- 150000001875 compounds Chemical class 0.000 claims abstract description 38
- 238000005406 washing Methods 0.000 claims abstract description 36
- 239000002253 acid Substances 0.000 claims abstract description 24
- 239000000460 chlorine Substances 0.000 claims abstract description 24
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 24
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000012535 impurity Substances 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000004061 bleaching Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 238000010009 beating Methods 0.000 claims abstract description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 38
- 239000003513 alkali Substances 0.000 claims description 36
- 239000002994 raw material Substances 0.000 claims description 30
- 238000009835 boiling Methods 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 18
- 241000208202 Linaceae Species 0.000 claims description 17
- 235000004431 Linum usitatissimum Nutrition 0.000 claims description 17
- 229940089401 xylon Drugs 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 15
- 239000002585 base Substances 0.000 claims description 14
- 239000000123 paper Substances 0.000 claims description 13
- 230000008961 swelling Effects 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- 238000010306 acid treatment Methods 0.000 claims description 10
- 235000013409 condiments Nutrition 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 230000014759 maintenance of location Effects 0.000 claims description 10
- 229920005610 lignin Polymers 0.000 claims description 9
- AEMOLEFTQBMNLQ-BKBMJHBISA-N alpha-D-galacturonic acid Chemical compound O[C@H]1O[C@H](C(O)=O)[C@H](O)[C@H](O)[C@H]1O AEMOLEFTQBMNLQ-BKBMJHBISA-N 0.000 claims description 7
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- 230000000740 bleeding effect Effects 0.000 claims description 6
- 238000010411 cooking Methods 0.000 claims description 6
- 239000012752 auxiliary agent Substances 0.000 claims description 5
- 229910052717 sulfur Inorganic materials 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 3
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 3
- 239000003945 anionic surfactant Substances 0.000 claims description 2
- 229920000297 Rayon Polymers 0.000 abstract description 33
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 3
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 3
- 244000082204 Phyllostachys viridis Species 0.000 abstract description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 3
- 239000011425 bamboo Substances 0.000 abstract description 3
- -1 bleaching Substances 0.000 abstract description 2
- 239000003292 glue Substances 0.000 description 14
- 238000009987 spinning Methods 0.000 description 13
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 238000012546 transfer Methods 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 238000010298 pulverizing process Methods 0.000 description 6
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 6
- 238000004040 coloring Methods 0.000 description 5
- 239000011734 sodium Substances 0.000 description 5
- 239000003381 stabilizer Substances 0.000 description 5
- 240000007594 Oryza sativa Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 229920001131 Pulp (paper) Polymers 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- 229920003043 Cellulose fiber Polymers 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 230000003385 bacteriostatic effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000007844 bleaching agent Substances 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 238000009898 sodium hypochlorite bleaching Methods 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 229920000875 Dissolving pulp Polymers 0.000 description 2
- 206010016322 Feeling abnormal Diseases 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 229920006221 acetate fiber Polymers 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000005660 chlorination reaction Methods 0.000 description 2
- QKSIFUGZHOUETI-UHFFFAOYSA-N copper;azane Chemical compound N.N.N.N.[Cu+2] QKSIFUGZHOUETI-UHFFFAOYSA-N 0.000 description 2
- 239000003398 denaturant Substances 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011086 glassine Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920000609 methyl cellulose Polymers 0.000 description 2
- 239000001923 methylcellulose Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- 240000000491 Corchorus aestuans Species 0.000 description 1
- 235000011777 Corchorus aestuans Nutrition 0.000 description 1
- 235000010862 Corchorus capsularis Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229920000433 Lyocell Polymers 0.000 description 1
- 238000009874 alkali refining Methods 0.000 description 1
- 235000019270 ammonium chloride Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000000022 bacteriostatic agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920003086 cellulose ether Polymers 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 239000011859 microparticle Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
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- Paper (AREA)
Abstract
This invention discloses a compound fiber new-type slurry pulp and it's making method. The compound fiber new-type pulp is made of the hemp, bamboo. The making steps as follows: brewing, washing, syringing, beating, mixing up, removing impurities and washing, preparing acid, preparing chlorine, bleaching, acid dealing, removing impurities and washing. This invention can satisfy various needs of the pulp material for viscose.
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 wood, 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 wood pulps, hemp dissolving 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 plurality of raw materials is made the compound cellulose pulp, can improve the various performances of fiber, maximizes favourable factors and minimizes unfavourable ones, and remedies 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 timber, fiber crops 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 wood, fiber crops mix the composite 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 with wood, the advantage of fibrilia raw material puts together, select the essence, discarding dross, provide and be satisfied with viscose and show different performance, different class are (as different skin affinity, different fiber deflections, different antibacterial bacteriostatics, different fiber soft feelings, different deodorizations, different gas permeability, different colorings, different elasticity ratios, different humidity absorption and releases etc.) to the needs of 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:
Wood, hemp composite cellulose pulp is characterized in that: by wood, numb made according to following weight proportion combination, wood: fiber crops=1%～99%: 1%～99%.
Composite cellulose pulp of the present invention by xylon, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Xylon 1%～99%
Flax fibre 1%～99%
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 〉=87%
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 composite cellulose pulp of the present invention: acetate fiber, copper ammonia fibre, viscose filament yarn, day silk, viscose short-thread, glassine paper, carbon fiber, CMC.
Wood of the present invention, hemp composite cellulose pulp manufacture method comprise the steps: condiment, 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 composite cellulose pulp of the present invention is as follows:
A, condiment: wood, fibrilia raw material are got the raw materials ready according to said ratio, adjust structure;
B, boiling: wood, fiber crops are adopted sulfate process or sulfite cooking, press 5.0～35.0% of oven dry weight and add 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 paper making additive factory.But described MA-1 auxiliary agent is a kind of anion surfactant of automated biological degraded.
The novel pulp that adopts the manufacture method of above-mentioned production wood, bamboo composite cellulose pulp to produce, its 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 〉=87%; Viscosity 〉=8.0mpa.s; Whiteness 〉=60%; Constant volume weight 120～1020g/m
3Inhale base number 200-970%; Swelling capacity 80-300%.
The invention has the beneficial effects as follows: with wood, 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 wood, 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 wood 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 two kinds of 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 wood, 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 timber, compound the making of fiber crops.
Composite cellulose pulp of the present invention by xylon, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Xylon 1%
Flax fibre 99%
Embodiment 2
Composite cellulose pulp of the present invention is that its percentage by weight is: 99%: 1% by timber, compound the making of fiber crops.
Composite cellulose pulp of the present invention by xylon, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Xylon 99%
Flax fibre 1%
Embodiment 3
Composite cellulose pulp is characterized in that: by wood, numb made according to following weight proportion combination, wood: fiber crops=50%: 50%.
Composite cellulose pulp of the present invention by xylon, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Xylon 50%
Flax fibre 50%
Technical indicator of the present invention is:
Ash≤0.25%;
Moisture 10.0 ± 0.5%;
Iron content≤30ppm;
Fat wax≤0.25%;
Chlorine-bearing compound≤0.25%;
Pectic substance pentosan≤0.25%;
Lignin≤2.0%;
Alpha cellulose 〉=88%;
Viscosity 〉=8.0mpa.s;
Whiteness 〉=62%;
Constant volume weight 680～920g/m3,
Inhale base number 300-870%;
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 wood, numb made according to following weight proportion combination, wood: fiber crops=60%: 40%.
Composite cellulose pulp of the present invention by xylon, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Xylon 60%
Flax fibre 40%
Technical indicator of the present invention is:
Ash≤0.24%;
Moisture 10.0 ± 0.5%;
Iron content≤36ppm;
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 〉=62%;
Constant volume weight 600～820g/m3,
Inhale base number 220-670%;
Swelling capacity 80-300%.
Embodiment 5
A kind of composite cellulose pulp is characterized in that: by wood, numb made according to following weight proportion combination, wood: fiber crops=30%: 70%.
Composite cellulose pulp of the present invention by xylon, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Xylon 30%
Flax fibre 70%
Technical indicator of the present invention is:
Ash≤0.25%
Moisture 10.0 ± 0.5%
Iron content≤35ppm
Fat wax≤0.25%
Chlorine-bearing compound≤0.25%
Pectic substance pentosan≤0.25%
Lignin≤2.0%
Alpha cellulose 〉=88%
Viscosity 〉=8.5mpa.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 wood, numb made according to following weight proportion combination, wood: fiber crops=10%: 90%.
Composite cellulose pulp of the present invention by xylon, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Xylon 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 〉=8.2mpa.s;
Whiteness 〉=68%
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: wood, 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: wood, fiber crops are adopted sulfate process or sulfite cooking, press 5.0～35.0% of oven dry weight and add 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 wood, 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 wood, 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:
| Project | Unit | Index |
| Specification | mm | 800*610 |
| Constant volume weight | g/m 3 | 120-1020 |
| Moisture content | ％ | 10.0±0.5 |
| Pulp Bao Chong | The Kg/ bag | 120±0.5 |
| Viscosity | mpa.s | ≥8.0 |
| The first fibre | ％ | ≥87 |
| Ash | ％ | ≤0.25 |
| Irony | PPm | ≤40 |
| Inhale base number | ％ | 200-970 |
| Swelling capacity | ％ | 80-300 |
| Whiteness | ％ | ≥60 |
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 (9)
1, wood, hemp composite cellulose pulp is characterized in that: by wood, numb made according to following weight proportion combination, wood: fiber crops=1%～99%: 1%～99%.
2, wood according to claim 1, hemp composite cellulose pulp is characterized in that: described composite cellulose pulp finished product by xylon, flax fibre is compound forms, the percentage by weight of each component is in its finished product:
Xylon 1%～99%
Flax fibre 1%～99%
Technical indicator 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 〉=87%
Viscosity 〉=8.0mpa.s
Whiteness 〉=60%
Constant volume weight 120～1020g/m
3
Inhale base number 200-970%
Swelling capacity 80-300%.
3, wood, hemp composite cellulose pulp manufacture method is characterized in that: comprise the steps: condiment, wash material, washing, making beating are discongested, mixing, removal of impurities washing, pre-acid, chlorine, bleaching, acid treatment, removal of impurities are washed, manufactured paper with pulp in advance.
4, wood according to claim 3, hemp composite cellulose pulp manufacture method is characterized in that: concrete manufacture method is as follows:
A, condiment: wood, fibrilia raw material are got the raw materials ready according to said ratio, adjust structure;
B, boiling: wood, fiber crops are adopted sulfate process or sulfite cooking, press 5.0～35.0% of oven dry weight and add 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.
5, according to claim 3 or 4 described composite cellulose pulp manufacture methods, it 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.
6, according to claim 3 or 4 described composite cellulose pulp manufacture methods, it 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.
7, according to claim 3 or 4 described composite cellulose pulp manufacture methods, it is characterized in that: feed steam feed before the described cooking process and precook.
8, according to claim 3 or 4 described composite cellulose pulp manufacture methods, 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, each intensification maximum temperature≤200 ℃ heats up, temperature retention time≤800 minute at every turn.
9, according to claim 3 or 4 described composite cellulose pulp manufacture methods, it 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, but described MA-1 auxiliary agent is a kind of anion surfactant of automated biological degraded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610020976 CN1844501A (en) | 2006-05-08 | 2006-05-08 | Wood hemp composite cellulose pulp and method for producing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610020976 CN1844501A (en) | 2006-05-08 | 2006-05-08 | Wood hemp composite cellulose pulp and method for producing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1844501A true CN1844501A (en) | 2006-10-11 |
Family
ID=37063471
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610020976 Pending CN1844501A (en) | 2006-05-08 | 2006-05-08 | Wood hemp composite cellulose pulp and method for producing same |
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| Country | Link |
|---|---|
| CN (1) | CN1844501A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022015179A1 (en) | 2020-07-13 | 2022-01-20 | Firma Handlowo-Usługowa Instbud Stanisław Boguta Spółka Jawna | The multi-layer composite sleeve, in particular for trenchless pipeline rehabilitation |
| CN115707805A (en) * | 2021-08-18 | 2023-02-21 | 上海凯鑫分离技术股份有限公司 | Method for producing lyocell fibers by using sulfite cooking chemical papermaking pulp |
-
2006
- 2006-05-08 CN CN 200610020976 patent/CN1844501A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022015179A1 (en) | 2020-07-13 | 2022-01-20 | Firma Handlowo-Usługowa Instbud Stanisław Boguta Spółka Jawna | The multi-layer composite sleeve, in particular for trenchless pipeline rehabilitation |
| CN115707805A (en) * | 2021-08-18 | 2023-02-21 | 上海凯鑫分离技术股份有限公司 | Method for producing lyocell fibers by using sulfite cooking chemical papermaking pulp |
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