CN100465359C - Technological process of producing fire retardant antiflux fiber - Google Patents
Technological process of producing fire retardant antiflux fiber Download PDFInfo
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- CN100465359C CN100465359C CNB200610044171XA CN200610044171A CN100465359C CN 100465359 C CN100465359 C CN 100465359C CN B200610044171X A CNB200610044171X A CN B200610044171XA CN 200610044171 A CN200610044171 A CN 200610044171A CN 100465359 C CN100465359 C CN 100465359C
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- 239000000835 fiber Substances 0.000 title claims abstract description 61
- 239000003063 flame retardant Substances 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229920002678 cellulose Polymers 0.000 claims abstract description 24
- 239000001913 cellulose Substances 0.000 claims abstract description 24
- 239000003513 alkali Substances 0.000 claims abstract description 14
- 238000009987 spinning Methods 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 12
- 229920000297 Rayon Polymers 0.000 claims abstract description 11
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 238000007598 dipping method Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 5
- 239000003292 glue Substances 0.000 claims description 12
- 239000003921 oil Substances 0.000 claims description 10
- 238000004132 cross linking Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 230000035800 maturation Effects 0.000 claims description 6
- 238000010298 pulverizing process Methods 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 239000004115 Sodium Silicate Substances 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 4
- 238000006297 dehydration reaction Methods 0.000 claims description 4
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical group [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- 239000004111 Potassium silicate Substances 0.000 claims description 3
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 3
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000003431 cross linking reagent Substances 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 4
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052710 silicon Inorganic materials 0.000 abstract description 3
- 239000010703 silicon Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 238000002156 mixing Methods 0.000 abstract description 2
- 238000007670 refining Methods 0.000 abstract 2
- 230000032683 aging Effects 0.000 abstract 1
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 6
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 6
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 3
- -1 aryl phosphate ester Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 229920000126 latex Polymers 0.000 description 3
- 239000004816 latex Substances 0.000 description 3
- 229920000609 methyl cellulose Polymers 0.000 description 3
- 239000001923 methylcellulose Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 229910052938 sodium sulfate Inorganic materials 0.000 description 3
- 235000011152 sodium sulphate Nutrition 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 125000000217 alkyl group Chemical group 0.000 description 2
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Chemical compound O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 description 2
- ZSTLPJLUQNQBDQ-UHFFFAOYSA-N azanylidyne(dihydroxy)-$l^{5}-phosphane Chemical compound OP(O)#N ZSTLPJLUQNQBDQ-UHFFFAOYSA-N 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- 150000002367 halogens Chemical class 0.000 description 2
- 239000002932 luster Substances 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 229960001763 zinc sulfate Drugs 0.000 description 2
- 229910000368 zinc sulfate Inorganic materials 0.000 description 2
- GAUFKBQSTGCCOC-UHFFFAOYSA-N 2-[(5,5-dimethyl-2-sulfanylidene-1,3,2$l^{5}-dioxaphosphinan-2-yl)oxy]-5,5-dimethyl-2-sulfanylidene-1,3,2$l^{5}-dioxaphosphinane Chemical compound O1CC(C)(C)COP1(=S)OP1(=S)OCC(C)(C)CO1 GAUFKBQSTGCCOC-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 206010023126 Jaundice Diseases 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Natural products P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 1
- 206010053615 Thermal burn Diseases 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- WPUINVXKIPAAHK-UHFFFAOYSA-N aluminum;potassium;oxygen(2-) Chemical compound [O-2].[O-2].[Al+3].[K+] WPUINVXKIPAAHK-UHFFFAOYSA-N 0.000 description 1
- 229910000410 antimony oxide Inorganic materials 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000031709 bromination Effects 0.000 description 1
- 238000005893 bromination reaction Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 230000002079 cooperative effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- MCWXGJITAZMZEV-UHFFFAOYSA-N dimethoate Chemical compound CNC(=O)CSP(=S)(OC)OC MCWXGJITAZMZEV-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 230000026030 halogenation Effects 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- VTRUBDSFZJNXHI-UHFFFAOYSA-N oxoantimony Chemical compound [Sb]=O VTRUBDSFZJNXHI-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 238000006265 spirocyclization reaction Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 125000002813 thiocarbonyl group Chemical group *C(*)=S 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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- Artificial Filaments (AREA)
Abstract
The present invention discloses technological process of producing fire retardant antiflux fiber. The fire retardant antiflux fiber is produced with cellulose pulp as material, and the production process includes the steps of: dipping, squeezing, crushing, ageing, sulfidizing, maturating, spinning, refining and stoving. The refining step includes washing, cross-liking and dewatering and oiling; and in the sulfidizing step, the silicon fire retardant is compounded into solution added into the alkali cellulose through stirring for dissolving and mixing to produce viscose of fire retardant fiber. The fire retardant antiflux fiber of the present invention has high fire retardant antiflux effect, high fiber strength and excellent filtering performance.
Description
Technical field
The present invention relates to a kind of process of producing fire retardant antiflux fiber, relate in particular to a kind of process of producing fire retardant antiflux fiber by steps such as dipping, squeezing, pulverizing, experienced, yellow, filtration, maturation, spinning, concise, oven dry.
Background technology
In vehicle, public building, family and office, fire safety problem more causes people's attention, and in order to reduce the harm of fabric fire, various countries have formulated the flame-retardant standard of various textiless and used rules.Limit non-flame-retardant textile with fabric types and field of employment, therefore, fire retardant antiflux fiber is developed rapidly.
Fiber fire-retardant mainly contains two kinds of manufacture methods.A kind of is additive process (blending method), is that fire retardant is made an addition to before spinning in the spinning solution, makes the fiber with anti-flammability.Another kind is a coating, generally is to make back or (when fiber is in gel state) in process of production at fiber, antimonous oxide is coated on the surface of fiber with the latex state with halogen-containing fire retardant.Typical fire retardant has the adhesive that polyvinyl chloride latex, polyvinyl bromide latex, chlorinated paraffin wax or bromination aromatic hydrocarbons and antimony oxide be combined into etc.
Research fire retardant antiflux fiber more, suitability for industrialized production mainly is to adopt the fire-retardant method of adding at present.The additive flame retardant of main type is as shown in table 1.
Table 1
| Ignition-proof element | Compound | Remarks |
| Phosphorus | Alkyl and aryl phosphate ester, phosphonate ester, polyphosphonates, ExoLit 5060 | Can mix with halide and produce cooperative effect |
| Phosphorus, nitrogen | The condensation product of phosphonitrile, phosphinylidyne or thiocarbonyl group phosphamide, spirocyclization three phosphonitriles, THPC-acid amides | The efficient height uses nontoxic in a large number |
| Phosphorus, halogen | Halogenated alkyl or aryl phosphine acid esters or polyphosphonates, halogenation phosphite ester or phosphonitrile | Consumption can be maximum, most of poisonous |
| Silicon | Silicate, polysilicate | Totally nontoxic, environmental friendliness |
In recent years, several fire resistance fibres have preferably appearred on the overseas market.As the permanent fire resistance fibre (PFR Rayon) of the U.S., the permanent fire resistance fibre of company of Avis section, the HFG fiber (additive is a chlorinated phosphate) of Japan Diawabo company, clock spins the BeLL FLame fiber of company, the Lenzing fire resistance fibre of Austria Lenzing company, SandofLam 5060 (ExoLit 5060) fire retardant of Switzerland former Sandoz company (existing CLariant) and fiber etc.
A domestic climax that the development of fire resistance fibre before and after nineteen ninety, once occurred, there are many enterprises, scientific research institutions and colleges and universities to participate in, what adopt all is SandofLame5060 based flame retardants, but the quality of the fire retardant of domestic production does not reach spinning requirement because the fire retardant import price is too high, does not finally carry out suitability for industrialized production.
At present, the general two big shortcomings that exist of fire resistance fibre on the market: molten drop drippage or generation smog.Molten drop drippage junk makes the people scald easily, even the material of the low ignition point that ignites; Produce smog and be generally toxic gas, the people is produced suffocate.The flame-retardant modified research focus of present regenerated celulose fibre is to use phosphoric acid ester fire retardant and silicic acid based flame retardant, this meet fire retardant no chlorination, low toxicity, press down requirement such as cigarette, but the addition of fire retardant is bigger, generally more than 30%, the not high fibre strength of script is further reduced, have influence on the strainability of mixed viscose simultaneously.Shortcomings such as the fire resistance fibre that the silicic acid based flame retardant is produced exists alkali resistance poor, can not carry out desulfurization during the fiber post processing and handle, and the fire resistance fibre color and luster jaundice of production, feel are sent out puckery, and Practical Performance is relatively poor.
Summary of the invention
Technical problem to be solved by this invention is: a kind of process of producing fire retardant antiflux fiber is provided, the fire retardant antiflux fiber that uses this method to produce, not only anti-flame fusion-resisting is effective, the fibre strength height, and can make viscose glue keep good strainability in process of production, reduced because of viscose glue stops up the production pause that filter screen causes, improved production efficiency.
Technical scheme of the present invention is: the process of producing fire retardant antiflux fiber, with the cellulose pulp is raw material, comprise dipping, squeezing, pulverizing, experienced, yellow, filtration, maturation, spinning, concise, baking step, described concise step comprises cleans and the dehydration step that oils
In described yellow step, silicon-series five-retardant is mixed with solution, join in the alkali cellulose in the yellow, through stirring, make it fully dissolve, mix, make the viscose glue of producing fire resistance fibre;
Behind described cleaning step and dehydration oil before the step, a crosslinking Treatment step is arranged.
Described silicon-series five-retardant is sodium metasilicate or potassium silicate or its mixture, and the content of silica is that a-is cellulosic 20～60% in the described silicon-series five-retardant, is preferably 30～40%.
In described crosslinking Treatment step, the crosslinking agent of employing is a meta-aluminate, and described meta-aluminate is configured to solution, and its concentration is 2～10g/L, and described solution is heated to 70～95 ℃, and fiber is carried out crosslinking Treatment, and crosslinking time is 3～10 minutes.
After having adopted technique scheme,,, only carry out carbonization during burning, can not form fusion so its main component of making fiber is a cellulose because the present invention is raw material with the cellulose pulp.Owing in yellow, add silicon-series five-retardant, evenly mix with cellulosic molecule with molecular state this fire retardant dissolving back, has guaranteed the strainability of viscose glue behind the adding fire retardant, in filtration step, be not easy to cause the obstruction of filter screen, guaranteed carrying out smoothly of production.Simultaneously, in the spinning step, viscose glue is when the acid bath moulding, cellulose becomes macromolecular chain shape structure, micella has served as " nucleus " effect in the polymerization process of silicic acid, promoted oversaturated silicic acid molecule from solution, to separate out, all the other silicic acid generate poly-orthosilicic acid, be present in the cellulosic molecule with the web-like silicon colloidal state, fiber and fire retardant are with the molecular link strong bonded, guaranteed the stability and the follow-up anti-arrangement of fire retardant, made physical index such as fiber strength and elongation significantly better than other fire resistance fibre of producing by the fire retardant additive process.
By crosslinking Treatment, carry out chemical reaction between the linear macromolecule chain of regenerated cellulose, become net high-polymer, guaranteed the fiber alkali resistance, improved color and luster, the feel of fiber simultaneously, the intensity of regenerated fiber is to a certain degree improved.
The specific embodiment
Below in conjunction with specific embodiment, the invention will be further described.
Embodiment 1:1.67dtex*38mm fire retardant antiflux fiber
With cellulose pulp is raw material, by known dipping, squeezing, pulverizing, experienced step, makes the 36Kg alkali cellulose, and methylcellulose is that the content of chemical cellulose is 30% in the alkali cellulose.
With 20KgSiO2 content 21% nine water sodium metasilicate (Na
2SiO
39H
2O) join in the 60L yellow dissolving water and make solution, this solution is joined in the alkali cellulose in the 36Kg yellow, make it fully dissolve, mix through stirring, making total solid content is 11.5% (quality), the viscose glue of sodium hydrate content 7.24%, after filtration, maturation makes spinning glue, at sulfuric acid content is 110g/l, sodium sulphate 330g/l, zinc sulfate 10g/l, 48 ℃ of temperature solidify the acid bath spinning, produce the 1.67dtex*38mm staple fibre through suitable drawing-off.Fiber after pickling, washing neutrality, 78 ℃ of temperature, in the crosslinked bath of concentration 3g/L meta-aluminate crosslinked 7 minutes.Make the 1.67dtex*38mm fire resistance fibre through dewatering, oil, drying.
Fiber index: do fracture strength: 2.13cN/dtex; Wet breaking strength: 1.12cN/dtex; Dried elongation at break: 20.4%; Line density deviation ratio :-1.2%; Whiteness: 79%; Oil content: 0.18%; Regain: 12.1%; Limited oxygen index (LOI) 27.5.
Embodiment 2:3.33dtex*60mm fire retardant antiflux fiber
With cellulose pulp is raw material, through known dipping, squeezing, pulverizing, experienced step, makes the 36Kg alkali cellulose, and methylcellulose is that the content of chemical cellulose is 30% in the alkali cellulose.
With 10KgSiO
2Content is 49% potassium silicate (K
2SiO
3) join in the 30L yellow dissolving water and make solution, this solution is joined in the alkali cellulose in the 36Kg yellow, make it fully dissolve, mix through stirring, making total solid content is 9.35% (quality), the viscose glue of sodium hydrate content 6.26%, after filtration, maturation makes spinning glue, at sulfuric acid content is 85g/l, sodium sulphate 320g/l, zinc sulfate 15g/l, 40 ℃ of temperature solidify the acid bath spinning, produce the 3.33dtex*60mm staple fibre through suitable drawing-off.Fiber after washing neutrality, 82 ℃ of temperature, in the crosslinked bath of the potassium metaaluminate of concentration 7g/L crosslinked 6 minutes.Make the 3.0D fire resistance fibre through dewatering, oil, drying.
Fiber index: do fracture strength: 2.03cN/dtex; Wet breaking strength: 1.01cN/dtex; Dried elongation at break: 21.0%; Line density deviation ratio :-2.8%; Whiteness: 78%; Oil content: 0.19%; Regain: 11.4%; Limited oxygen index (LOI) 28.
Embodiment 3:2.78dtex*51mm fire retardant antiflux fiber
With cellulose pulp is raw material, through known dipping, squeezing, pulverizing, experienced step, makes the 36Kg alkali cellulose, and methylcellulose is that the content of chemical cellulose is 30% in the alkali cellulose.
With 30KgSiO2 content 21% nine water sodium metasilicate (Na
2SiO
39H
2O) this solution is joined in the 70L yellow dissolving water and make solution, join in the alkali cellulose in the 36Kg yellow, making total solid content is 8.20% (quality), the viscose glue of sodium hydrate content 5.24%, after filtration, maturation makes spinning glue, is 120g/l at sulfuric acid content, sodium sulphate 330g/l, aluminum sulfate 6g/l, 48 ℃ of temperature solidify the acid bath spinning, produce the 2.78dtex*51mm staple fibre through suitable drawing-off.Fiber after washing neutrality, 85 ℃ of temperature, in the crosslinked bath of concentration 5g/L sodium metaaluminate crosslinked 7 minutes.Make the 2.78dtex*51mm fire resistance fibre through dewatering, oil, drying.
Fiber index: do fracture strength: 2.11cN/dtex; Wet breaking strength: 1.08cN/dtex; Dried elongation at break: 19.4%; Line density deviation ratio :-0.8%; Whiteness: 78%; Oil content: 0.18%; Regain: 11.1%; Limited oxygen index (LOI) 29.5.
Claims (2)
1, produces the process of fire retardant antiflux fiber, with the cellulose pulp is raw material, comprise dipping, squeezing, pulverizing, experienced, yellow, filtration, maturation, spinning, concise, baking step, described concise step comprises cleans and the dehydration step that oils, and it is characterized in that:
In described yellow step, silicon-series five-retardant is mixed with solution, join in the alkali cellulose in the yellow, through stirring, make it fully dissolve, mix, make the viscose glue of producing fire resistance fibre, described silicon-series five-retardant is sodium metasilicate or potassium silicate or its mixture, and the content of silica is a-cellulosic 20～60% in the described silicon-series five-retardant;
Behind described cleaning step and dehydration oil before the step, a crosslinking Treatment step is arranged, in described crosslinking Treatment step, the crosslinking agent that adopts is a meta-aluminate, described meta-aluminate is configured to solution, and its concentration is 2～10g/L, and described solution is heated to 70～95 ℃, fiber is carried out crosslinking Treatment, and crosslinking time is 3～10 minutes.
2, the process of production fire retardant antiflux fiber as claimed in claim 1 is characterized in that: the content of silica is a-cellulosic 30～40% in the described silicon-series five-retardant.
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|---|---|---|---|
| CNB200610044171XA CN100465359C (en) | 2006-05-12 | 2006-05-12 | Technological process of producing fire retardant antiflux fiber |
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Cited By (2)
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| CN102321488A (en) * | 2011-07-18 | 2012-01-18 | 中国科学技术大学 | A kind of derivatived cellulose micro-encapsulated halogen-free flame retardant and preparation method thereof |
| CN108754786A (en) * | 2018-07-16 | 2018-11-06 | 北京赛欧兰阻燃纤维有限公司 | A kind of multifunctional flame-proof blanket and preparation method thereof |
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| CN101210353A (en) * | 2006-12-28 | 2008-07-02 | 山东海龙股份有限公司 | Anti-flame fusion-resisting cellulose viscose and producing method thereof |
| AT508687A1 (en) | 2009-09-01 | 2011-03-15 | Chemiefaser Lenzing Ag | FLAME-RESTRICTED CELLULOSIC FIBER, THEIR USE AND METHOD FOR THE PRODUCTION THEREOF |
| CN101851804B (en) * | 2010-05-24 | 2011-11-16 | 郑睿敏 | Method for producing fire-retardant anti-melt viscose fibers |
| CN102345174B (en) * | 2011-08-12 | 2013-03-27 | 山东海龙股份有限公司 | Preparation method for flame-retardant spinning viscose |
| CN102505169A (en) * | 2011-10-26 | 2012-06-20 | 阜宁澳洋科技有限责任公司 | Flame-retardant viscose fiber and preparation method thereof |
| CN103789858B (en) * | 2014-01-27 | 2015-12-30 | 刘承修 | A kind of environment-friendly type thermostable durable flame-retardant fiber and preparation method thereof |
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| CN115679465B (en) * | 2022-10-31 | 2024-02-02 | 潍坊欣龙生物材料有限公司 | Preparation method of light regenerated cellulose fiber |
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| CN1540047A (en) * | 2003-10-29 | 2004-10-27 | 冷纯廷 | Method for producing Nano fire resistant and fire retardant fiber |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1540047A (en) * | 2003-10-29 | 2004-10-27 | 冷纯廷 | Method for producing Nano fire resistant and fire retardant fiber |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102321488A (en) * | 2011-07-18 | 2012-01-18 | 中国科学技术大学 | A kind of derivatived cellulose micro-encapsulated halogen-free flame retardant and preparation method thereof |
| CN108754786A (en) * | 2018-07-16 | 2018-11-06 | 北京赛欧兰阻燃纤维有限公司 | A kind of multifunctional flame-proof blanket and preparation method thereof |
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