CN108532027A - PA/PVA sea-island fibres and its production technology with water-soluble marine facies - Google Patents
PA/PVA sea-island fibres and its production technology with water-soluble marine facies Download PDFInfo
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- CN108532027A CN108532027A CN201810372919.1A CN201810372919A CN108532027A CN 108532027 A CN108532027 A CN 108532027A CN 201810372919 A CN201810372919 A CN 201810372919A CN 108532027 A CN108532027 A CN 108532027A
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- island
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- 208000035126 Facies Diseases 0.000 title claims abstract description 53
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000005516 engineering process Methods 0.000 title claims abstract description 16
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 175
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 175
- 239000000835 fiber Substances 0.000 claims abstract description 113
- 238000009987 spinning Methods 0.000 claims abstract description 50
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- 239000002994 raw material Substances 0.000 claims abstract description 40
- 239000002131 composite material Substances 0.000 claims abstract description 38
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 30
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- 239000000314 lubricant Substances 0.000 claims abstract description 23
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 21
- -1 salt compounds Chemical class 0.000 claims abstract description 20
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 19
- 239000008367 deionised water Substances 0.000 claims abstract description 17
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 17
- 238000001125 extrusion Methods 0.000 claims description 28
- 229910001868 water Inorganic materials 0.000 claims description 28
- 239000000155 melt Substances 0.000 claims description 27
- 238000001035 drying Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 20
- 238000005453 pelletization Methods 0.000 claims description 14
- 238000002844 melting Methods 0.000 claims description 13
- 230000008018 melting Effects 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 12
- 238000000354 decomposition reaction Methods 0.000 claims description 11
- 238000002360 preparation method Methods 0.000 claims description 11
- 238000009826 distribution Methods 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 10
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 6
- 239000002202 Polyethylene glycol Substances 0.000 claims description 6
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical group [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 6
- 239000008116 calcium stearate Substances 0.000 claims description 6
- 235000013539 calcium stearate Nutrition 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229920001223 polyethylene glycol Polymers 0.000 claims description 6
- 239000003921 oil Substances 0.000 claims description 5
- 238000007500 overflow downdraw method Methods 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000002791 soaking Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- PCHPORCSPXIHLZ-UHFFFAOYSA-N diphenhydramine hydrochloride Chemical compound [Cl-].C=1C=CC=CC=1C(OCC[NH+](C)C)C1=CC=CC=C1 PCHPORCSPXIHLZ-UHFFFAOYSA-N 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 150000002989 phenols Chemical class 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 2
- 208000012886 Vertigo Diseases 0.000 abstract description 45
- 239000000047 product Substances 0.000 description 15
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 238000007792 addition Methods 0.000 description 7
- 238000012545 processing Methods 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 5
- 238000006731 degradation reaction Methods 0.000 description 5
- 229920000642 polymer Polymers 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010924 continuous production Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229920001169 thermoplastic Polymers 0.000 description 3
- 239000004416 thermosoftening plastic Substances 0.000 description 3
- 229920001410 Microfiber Polymers 0.000 description 2
- 230000009102 absorption Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000000413 hydrolysate Substances 0.000 description 2
- 238000002074 melt spinning Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 206010013786 Dry skin Diseases 0.000 description 1
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000010128 melt processing Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002530 phenolic antioxidant Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- 229920001059 synthetic polymer Polymers 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
Classifications
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/04—Melting filament-forming substances
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/12—Stretch-spinning methods
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F11/00—Chemical after-treatment of artificial filaments or the like during manufacture
- D01F11/04—Chemical after-treatment of artificial filaments or the like during manufacture of synthetic polymers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/60—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyamides
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/78—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products
- D01F6/80—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from copolycondensation products from copolyamides
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/10—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained by reactions only involving carbon-to-carbon unsaturated bonds as constituent
Abstract
The invention discloses a kind of PA/PVA sea-island fibres with water-soluble marine facies, by PA as island phase component, the as-spun fibre that PVA is formed as marine facies component, drawn, thermal finalization obtain sea-island fibre, the island phase component of as-spun fibre accounts for the 60%~85% of fibre section product, and sea component accounts for the 40%~15% of fibre section product, and the fiber number of sea-island fibre is 1.6~14dtex, fracture strength is 3~6cN/dtex, and water-solubility PVA master batch is merged by the raw material of following weight ratio：50~70 parts of polyvinyl alcohol；15~25 parts of polyalcohols or salt compounds modifying agent；3~7 parts of antioxidant；3~7 parts of lubricant；25~35 parts of deionized water；The present invention also provides the production technologies of the sea-island fibre.Compared with traditional PVA, due to reducing fusing point, not only ensure that PVA sea components can be with dystectic PA melt composite spinnings, and can't occur while reaching fusing point PVA decompose the problem of, solve the problems, such as traditional PVA encounter high temperature PA decompose and can not melt composite spinning.
Description
Technical field
The present invention relates to superfine fibre technical field more particularly to a kind of PA/PVA sea-island fibres with water-soluble marine facies
And its production technology.
Background technology
Superfine fibre with its high spreadability, it is soft, take comfortable, gloss is soft, have a performances such as good dispersiveness and
People's concern is received, the fields such as clothes, dermatine, construction material, absorption and filtering material are widely used in.Sea-island fibre is sea
The abbreviation of island composite fibre, it, using 2 kinds of fibre-forming polymers as " island " and " sea " component, is pressed using composite spinning technology
Different proportionings carries out melt spinning, then utilizes this 2 kinds of components to the different dissolubilities of certain chemical solvent, dissolves " sea " group
" island " component, that is, composite ultrafine fiber under fractionation.According to the difference of marine facies polymer type and after-processing technology, sea-island fibre point
For the molten sea of solvent（Benzene decrement method）It is exfoliated with hydrolyzing（Alkali decrement method）.Benzene decrement method utilizes the organic solvents such as toluene
Marine facies are dissolved, there are the recycling of solvent, the various aspects such as removal of trace solvent on the recycling of sea component and superfine fibre
Problem；Alkali reduction reduces environmental pollution using thermokalite hydrolysis stripping marine facies though avoiding using organic solvent, there are still
The recycling of hydrolysate and and spent lye the various problems such as processing.
To solve problem of environmental pollution of the sea-island fibre when removing marine facies from source, this project plans water-soluble polymer
Marine facies of the slice for sea-island fibre, recycle hot water dissolving's marine facies, prepare superfine fibre.Wherein, polyvinyl alcohol（PVA）Have
Excellent water solubility, mechanical property, film forming, emulsibility, organic solvent resistance etc. are widely used in weaving, papermaking, timber
The fields such as processing, daily use chemicals, medicine, sewage disposal are a kind of widely used functional high molecule materials.In addition, PVA is considered
It is a kind of really biodegradable synthetic polymer, it can be degradable by single microorganism in nature or symbiosis population
After generate CO2And H2O is a kind of most potential environment friendly material.Therefore, as can PVA is used as the water-soluble of sea-island fibre
Property marine facies, it is expected to traditional sea-island fibre benzene decrement is thoroughly solved from source and problem of environmental pollution that Alkali reduction is brought.But it is poly-
The melting temperature of vinyl alcohol is less than decomposition temperature, and most polyvinyl alcohol spinning uses wet spinning technology.This technique can only
Product for one pack system, it is impossible to be used in composite spinning product.Therefore, it is necessary to could be answered after polyvinyl alcohol is modified
Close spinning.
But PVA is a kind of polyhydroxylated polymer, strong intramolecular and intermolecular hydrogen bonding are formed between hydroxyl makes its fusing point
（200℃）With decomposition temperature（200~250 DEG C）It is sufficiently close to, is melted with polymer such as PA, PA derivative, PA or PA derivatives
Can decompose when melting spinning, can not spinning, therefore cannot be with other copolymer melt-processeds.Traditional fibre molding can only be molten
The melt spinning of liquid spinning or one pack system cannot achieve the composite molten spinning with island phase resin, be that PVA is hindered to be used for island
The deciding factor of fiber water solubility marine facies.
Invention content
In view of the deficienciess of the prior art, the technical problem to be solved by the invention is to provide a kind of solution tradition PVA
Slice prepares composite fibre produced pollution problem using organic solvent processing, realizes the composite molten spinning with island phase resin
Purpose enhances continuous production, reduces PA/PVA sea-island fibres and its production with water-soluble marine facies of hand labor intensity
Technique.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of PA/ with water-soluble marine facies
PVA sea-island fibres, the as-spun fibre formed as marine facies component as island phase component, PVA by PA, drawn, thermal finalization obtain
Sea-island fibre, the island phase component of as-spun fibre account for the 60%~85% of fibre section product, sea component account for fibre section product 40%~
15%, the fiber number of sea-island fibre is 1.6~14dtex, and fracture strength is 3~6cN/dtex, and elongation at break is 7~10%, island group
Divide single fiber fiber number in 0.8dtex hereinafter, PVA is water-solubility PVA master batch, the water-solubility PVA master batch is by following weight ratio
Raw material merge：
50~70 parts of polyvinyl alcohol；
15~25 parts of polyalcohols or salt compounds modifying agent；
3~7 parts of antioxidant；
3~7 parts of lubricant；
25~35 parts of deionized water；
Fusion method is first by polyalcohols or salt compounds modifying agent in deionized water dissolving, then same antioxidant, lubrication
Agent, polyvinyl alcohol are uniform, and modified PVA slices, 180~190 DEG C of the fusing point of PVA slices are obtained after dry；Melting range
175-195 DEG C, 210 DEG C~220 DEG C of heat decomposition temperature.
The above-mentioned PA/PVA sea-island fibres with water-soluble marine facies, the water-solubility PVA master batch is by following weight part ratio
The raw material of example merges：
60 parts of polyvinyl alcohol；
20 parts of polyalcohols or salt compounds modifying agent；
5 parts of antioxidant；
5 parts of lubricant；
30 parts of deionized water.
The above-mentioned PA/PVA sea-island fibres with water-soluble marine facies, the polyalcohols or salt compounds modifying agent are
One or more of hydramine, polyethylene glycol, acetate or phosphate.
The above-mentioned PA/PVA sea-island fibres with water-soluble marine facies, the antioxidant are aniline kind antioxidant or are obstructed
Phenolic antioxidant.
The above-mentioned PA/PVA sea-island fibres with water-soluble marine facies, the Hinered phenols antioxidant are β-（Bis- uncles of 3,5-
Butyl -4- hydroxy phenyls）Or β-（3,5 di-t-butyl 4- hydroxy-phenies）.
The above-mentioned PA/PVA sea-island fibres with water-soluble marine facies, the lubricant are calcium stearate or multi-functional
Aliphatic acid complex ester.
It is a kind of to produce the technique of the PA/PVA sea-island fibres described in claim 1 with water-soluble marine facies, including walk as follows
Suddenly：
（One）, water-solubility PVA master batch preparation
（1）, by corresponding weight ratio polyvinyl alcohol is added in vacuum feeder, and open vacuum feeder；According to
Than polyalcohols or salt compounds modifying agent, antioxidant, lubricant and deionized water are injected vacuum feeder successively
It is interior；
（2）, open vacuum feeder heating valve, be warming up to 75 DEG C~85 DEG C, through vertical conical spiral ribbon mixer be kneaded 80
~90 minutes；
（3）, after mixing, into screw extruder extruding pelletization, 80 DEG C~95 DEG C of one area's temperature of screw extruder；Two area's temperature
105 DEG C~120 DEG C of degree；Three 130 DEG C of area's temperature~150 DEG C；Four 155 DEG C of area's temperature~175 DEG C；Five area's temperature 180 DEG C~200
DEG C, obtain continuous strand；
（4）, the strand of extrusion is subjected to pelletizing after air-cooled, obtain the particle of 3mm；
The present invention is by adding salt compounds modifier A and polyalcohol modified dose B couples four kinds of different polymerization degree PVA
（PVA1799, PVA1099, PVA0899, PVA0599）The influence of fusing point, heat decomposition temperature, shearing rheological property, spinnability etc.,
It is preferred that going out preferable modified PVA system, melt-processable water-solubility PVA resin slicer has been made, it has tentatively been realized and stablizes melting
Spinning.
The preparation of modified PVA raw material is the mixed process of solid and liquid.Horizontal type helical ribbon mixer or vertical bevel can be used
Shape spiral ribbon mixer etc..It is put into practice in conjunction with previous experiments, considers that mixture discharging difficulty or ease, the present invention are quasi- using more preferably vertical conical
Spiral ribbon mixer, and configure necessary mist formula liquid-jet device, heating device and vacuum feeder.The ribbon of the equipment was mixing
Material is constantly up promoted from bottom in journey, mist formula liquid-jet device can by liquid equably be sprayed at mixing in material on from
And ensuring that material is sufficiently mixed, heating device can promote infiltration, absorptions of the PVA to modifying agent, improve modified effect.It is selectable
Device parameter is as follows：
RDS series vertical conical spiral ribbon mixer technical parameters
Model specification, m3 RDS-6 RDS-8
Total volume, m3 68
Swept volume, m3 3.6 4.8
Power, KW 22~30 30~37
Conveying equipment is configured on slice production line.Powder-granule material PVA is transported to spiral ribbon mixer with vacuum feeder, uses spiral
Mixed PVA modified materials are transported to single-screw machine hopper by feeder, enhance continuous production, reduce hand labor intensity.
PVA is granulated after being mixed with modifying agent by single screw extrusion machine.Single screw extrusion machine is mainly used for thermoplastic
Extrusion, be made of transmission, charging, machine barrel, screw rod, head and mouth mold etc., there is simple in structure, low-cost feature, to poly-
The shear degradation for closing object is small, and operation and technology controlling and process are relatively easy.Squeeze out the water cooled pelletizing of strand.
According to the characteristic of designed productive capacity and modified PVA, i.e.,：Have certain water imbibition or water solubility, melt granules are easy to stick
Even, PVA slices, pelletizing are prepared using single screw extrusion machine-water cooling check rod pelletizing of screw diameter 120mm, draw ratio L/D=20
Machine selects planer-type pelleter.Following table is single screw extrusion machine important technological parameters：
Model XJWP-120
Screw diameter（mm） φ120
Screw rod major diameter (L/D) 20:1
Screw rod maximum speed (r/min) 45
Power of motor (kw) 110
Largest production can (kg/h) 700
（Two）, sea-island fibre preparation
（5）, 115 DEG C~125 DEG C of PA drying temperatures, 4~6 hours drying times, 105 DEG C~110 DEG C of PVA drying temperatures are dry
4~6 hours time squeezed the PA raw materials as island component and the water-solubility PVA master batch as sea component by screw rod respectively
Go out machine and carries out melting extrusion；PA enters A screw extruders, and A screw extruders squeeze out ratio 60%~80%, and PVA enters B screw rods
Extruder, B screw extruders squeeze out ratio 40%~20%；
（6）, two kinds of raw material melts after extrusion molten be respectively fed to melt pipe heat；The heating temperature of the two is arranged
To ensure to form the standard on island and sea after the distribution duct contact of composite component in spinning manifold respectively when two kinds of raw material melts,
Island component and the heat of sea component transmit temperature difference and are set as 20 DEG C~45 DEG C；
（7）, two kinds of raw material melts are respectively fed to spinning manifold, squeezed out after metering pump accurate measurement, be assigned to spinning manifold
In interior composite component, island component is evenly distributed in sea component by the distribution duct in composite component, by same spinneret
Hole sprays, and carries out composite spinning, obtains using PA as island component, and PVA is the fabric of island-in-sea type as-spun fibre of extra large component；
（8）, by fabric of island-in-sea type as-spun fibre drawn obtained and final finishing, you can obtain the sea-island fibre of collection pencil；
（Three）, sea-island fibre final finishing
（9）, the sea-island fibre of acquisition is carried out to cooling, drawing-off, oils, dry, after the processes such as network, winding obtains final sea
Island fibrous finished product.
The production technology of the above-mentioned PA/PVA sea-island fibres with water-soluble marine facies, the step（Two）In, PA raw materials
Melt pipe temperature setting be 260 DEG C~285 DEG C, the melt pipe temperature settings of PVA raw materials is 145 DEG C~160 DEG C.
The production technology of the above-mentioned PA/PVA sea-island fibres with water-soluble marine facies, the step（Two）In, through spinning
The island volume components percentage range of metering pump accurate measurement in babinet is 60%~80%, and sea component volume percent range is
40%~20%.
The production technology of the above-mentioned PA/PVA sea-island fibres with water-soluble marine facies, sea-island fibre is immersed in hot water,
Dissolve away the marine facies component PVA in sea-island fibre, you can obtain the PA superfine fibres of collection pencil, the hot water temperature is set as 98 DEG C
~100 DEG C, soaking time is 30 seconds~1 minute.
The present invention has the advantages that the PA/PVA sea-island fibres of water-soluble marine facies and its production technology are：The present invention is by dividing
Son is compound and is plasticized, and has complementary structure, environmental-friendly micromolecular compound or oligomer using with PVA, is formed by force with PVA
Hydrogen bond is compound, weakens in PVA self-molecules presents with intermolecular strong hydrogen bonding, inhibits its crystallization, reduce its fusing point, improves its thermal decomposition temperature
Degree obtains the thermoplastic processing window more than 60 DEG C or more, and other processing aids is added, and realizes the thermoplastic processing of PVA, passes through spiral shell
Bar extruding pelletization prepares the PVA slices of melt-processable, and critical material is provided to prepare water decrement sea-island fibre.It will be modified
Polyvinyl alcohol be used as the water-soluble marine facies component of sea-island fibre, using hot water dissolving's PVA marine facies, the dirt of organic solvent is not present
The problems such as dye and hydrolysate recycling spent lye are handled.It solves traditional PVA slices to prepare using organic solvent processing
Composite fibre produced pollution problem realizes the composite molten spinning purpose with island phase resin, enhances continuous production, reduces
Hand labor intensity.Product in process of production, is acted in accordance with it《People's Republic of China's promotion law on cleaner production》, with can biology
The PVA of degradation and environmental-friendly modifying agent are raw material, prepare composite ultrafine fiber and are produced using method for melt processing, were produced
It is discharged without high temperature, high pressure procedure and equipment, " three wastes " of no waste water,waste gas and industrial residue in journey, on environment without influence, meets cleaning
The requirement of production.
Specific implementation mode
The present invention is described in further details with reference to specific embodiment；
Embodiment 1：
A kind of PA/PVA sea-island fibres with water-soluble marine facies of the present embodiment, by PA as island phase component, PVA is as marine facies group
The as-spun fibre formed, drawn, thermal finalization is divided to obtain sea-island fibre, the island phase component of as-spun fibre accounts for fibre section product
60%, sea component accounts for the 40% of fibre section product, and the fiber number of sea-island fibre is 1.6~14dtex, and fracture strength is 3~6cN/
Dtex, elongation at break be 7~10%, island component single fiber fiber number in 0.8dtex hereinafter, PVA be water-solubility PVA master batch, the water
Dissolubility PVA master batches are merged by the raw material of following weight ratio：50 parts of polyvinyl alcohol；Polyalcohols or salt compounds change
15 parts of agent of property；3 parts of antioxidant；3 parts of lubricant；25 parts of deionized water；Wherein, polyalcohols or salt compounds modifying agent are
Hydramine, polyethylene glycol, antioxidant are aniline kind antioxidant, and lubricant is calcium stearate.The addition of antioxidant is intended to slow down
The problem of thermal degradation of PVA and xanthochromia, the addition of lubricant are intended to improve the problem of the flowing and formability difference of PVA.
Fusion method be first by polyalcohols or salt compounds modifying agent in deionized water dissolving, then same antioxidant,
Lubricant, polyvinyl alcohol are uniform, and modified PVA slices, 180 DEG C of the fusing point of PVA slices are obtained after dry；Melting range
175 DEG C~195 DEG C, 210 DEG C of heat decomposition temperature.
The present embodiment production has the technique of the PA/PVA sea-island fibres of water-soluble marine facies, includes the following steps：
（One）, water-solubility PVA master batch preparation
（1）, by corresponding weight ratio polyvinyl alcohol is added in vacuum feeder, and open vacuum feeder；According to
Than hydramine, polyethylene glycol, aniline kind antioxidant, calcium stearate and deionized water are injected in vacuum feeder successively；
（2）, open vacuum feeder heating valve, be warming up to 75 DEG C, through vertical conical spiral ribbon mixer be kneaded 80 minutes；
（3）, after mixing, into screw extruder extruding pelletization, 80 DEG C of one area's temperature of screw extruder；Two area's temperature 105
℃；Three 130 DEG C of area's temperature；Four 155 DEG C of area's temperature；Five 180 DEG C of area's temperature, obtain continuous strand；
（4）, the strand of extrusion is subjected to pelletizing after air-cooled, obtain the particle of 3mm；
（Two）, sea-island fibre preparation
（5）, by the PA raw materials as island component and the water-solubility PVA master batch as sea component respectively by screw extruder into
Row melting extrusion；The sea component of the present embodiment selects the trade mark for the PVA master batches of 0599/B, and island component PA selects PA6, first, PA6
115 DEG C of chip drying temperature, 6 hours drying times.105 DEG C of PVA0599/B drying temperatures, 6 hours drying times.Then, PA6
Into A screw rods, zone temperature is 220 DEG C of an area, 235 DEG C of 2nd area, 245 DEG C of 3rd area, 250 DEG C of 4th area, 260 DEG C of 5th area.
PVA0599/B enters B screw rods, 105 DEG C of one area of zone temperature, 120 DEG C of 2nd area, 135 DEG C of 3rd area, 145 DEG C of 4th area, 155 DEG C of 5th area.
A Screw Extrusions ratio 60%, B Screw Extrusions ratio 40%.
（6）, two kinds of raw material melts after extrusion molten be respectively fed to melt pipe heat；The heating temperature of the two
It is set as ensuring to be formed island and sea after the distribution duct contact of composite component in spinning manifold respectively when two kinds of raw material melts
Standard, in the present embodiment, the melt pipe temperature setting of PA raw materials is 285 DEG C, and the melt pipe temperature setting of PVA raw materials is
145 DEG C, the heat of island component and sea component transmits temperature difference and is set as 45 DEG C；Since the fusing point of PA is 240 degree, so when two kinds of originals
The moment for expecting melt contacts inevitably occurs heat and transmits between PA and PVA, 45 DEG C of temperature is passed to PVA by PA,
PVA can be increased to 190 DEG C in moment from 145 DEG C, and then moment melts the condition for reaching spinning.The modified water solubility of the present invention
PVA is compared with traditional PVA, due to reducing fusing point, can melt at 190 DEG C, therefore, not only ensures PVA sea components
Can be with dystectic PA melt composite spinnings, and the fusing point of PVA is larger apart from its conventional 210 DEG C of decomposition temperature, is reaching
The problem of PVA is decomposed can't occur while fusing point, solve traditional PVA and encounter the PA of high temperature and decompose and can not melt
The problem of composite spinning.
（7）, two kinds of raw material melts are respectively fed to spinning manifold, squeezed out after metering pump accurate measurement, be assigned to spinning
In composite component in babinet, island component is evenly distributed in sea component by the distribution duct in composite component, by same
Spinneret orifice sprays, and carries out composite spinning, obtains using PA as island component, and PVA is the fabric of island-in-sea type as-spun fibre of extra large component；The present embodiment
In, the island volume components percentage range of the metering pump accurate measurement in spinning manifold is 60%, sea component volume percent range
It is 40%.10 MPa of spinning pressure.
（8）, by fabric of island-in-sea type as-spun fibre drawn obtained and final finishing, you can obtain the sea-island fibre of collection pencil.Such as
Fruit immerses the sea-island fibre in hot water, dissolves away the marine facies component PVA in sea-island fibre, you can obtains the ultra-fine fibres of PA of collection pencil
Dimension.In the present embodiment, hot water temperature is set as 98 DEG C, and soaking time is 1 minute, you can by the sea component PVA in sea-island fibre
It is completely dissolved.
（Three）, sea-island fibre final finishing
（9）, the sea-island fibre of acquisition is carried out to cooling, drawing-off, oils, dry, after the processes such as network, winding obtains final sea
Island fibrous finished product.
Embodiment 2：
The present embodiment part same as Example 1 repeats no more, the difference is that：
A kind of PA/PVA sea-island fibres with water-soluble marine facies of the present embodiment, by PA as island phase component, PVA is as marine facies group
The as-spun fibre formed, drawn, thermal finalization is divided to obtain sea-island fibre, the island phase component of as-spun fibre accounts for fibre section product
70%, sea component accounts for the 30% of fibre section product, and the fiber number of sea-island fibre is 1.6~14dtex, and fracture strength is 3~6cN/
Dtex, elongation at break be 7~10%, island component single fiber fiber number in 0.8dtex hereinafter, PVA be water-solubility PVA master batch, the water
Dissolubility PVA master batches are merged by the raw material of following weight ratio：60 parts of polyvinyl alcohol；Polyalcohols or salt compounds
20 parts of modifying agent；5 parts of antioxidant；5 parts of lubricant；30 parts of deionized water.Wherein, polyalcohols or salt compounds modifying agent
For acetate or phosphate, antioxidant is β-（3,5- di-tert-butyl-hydroxy phenyls）, lubricant is multi-functional fat
Sour complex ester.The problem of addition of antioxidant is intended to slow down the thermal degradation of PVA and xanthochromia, the addition of lubricant is intended to improve
The problem of the flowing of PVA and formability difference.
Fusion method be first by polyalcohols or salt compounds modifying agent in deionized water dissolving, then same antioxidant,
Lubricant, polyvinyl alcohol are uniform, and modified PVA slices, 185 DEG C of the fusing point of PVA slices are obtained after dry；Melting range
175 DEG C~195 DEG C, 215 DEG C of heat decomposition temperature.
The present embodiment production has the technique of the PA/PVA sea-island fibres of water-soluble marine facies, includes the following steps：
（One）, water-solubility PVA master batch preparation
（1）, by corresponding weight ratio polyvinyl alcohol is added in vacuum feeder, and open vacuum feeder；According to
Than successively by acetate or phosphate, β-（3,5- di-tert-butyl-hydroxy phenyls）, functional group aliphatic acid complex ester and go
Ionized water injects in vacuum feeder；
（2）, open vacuum feeder heating valve, be warming up to 80 DEG C, through vertical conical spiral ribbon mixer be kneaded 85 minutes；
（3）, after mixing, into screw extruder extruding pelletization, 87 DEG C of one area's temperature of screw extruder；Two area's temperature 112
℃；Three 140 DEG C of area's temperature；Four 165 DEG C of area's temperature；Five 190 DEG C of area's temperature, obtain continuous strand；
（4）, the strand of extrusion is subjected to pelletizing after air-cooled, obtain the particle of 3mm；
（Two）, sea-island fibre preparation
（5）, by the PA raw materials as island component and the water-solubility PVA master batch as sea component respectively by screw extruder into
Row melting extrusion；The sea component of the present embodiment selects the trade mark for the PVA master batches of 0599/B, and island component PA selects PA6, first, PA6
120 DEG C of chip drying temperature, 5 hours drying times.108 DEG C of PVA0599/B drying temperatures, 5 hours drying times.Then, PA6
Into A screw rods, zone temperature is 222 DEG C of an area, 238 DEG C of 2nd area, 247 DEG C of 3rd area, 253 DEG C of 4th area, 262 DEG C of 5th area.
PVA0599/B enters B screw rods, 110 DEG C of one area of zone temperature, 122 DEG C of 2nd area, 138 DEG C of 3rd area, 147 DEG C of 4th area, 158 DEG C of 5th area.
A Screw Extrusions ratio 70%, B Screw Extrusions ratio 30%.
（6）, two kinds of raw material melts after extrusion molten be respectively fed to melt pipe heat；The heating temperature of the two
It is set as ensuring to be formed island and sea after the distribution duct contact of composite component in spinning manifold respectively when two kinds of raw material melts
Standard, in the present embodiment, the melt pipe temperature setting of PA raw materials is 272 DEG C, and the melt pipe temperature setting of PVA raw materials is
154 DEG C, the heat of island component and sea component transmits temperature difference and is set as 32 DEG C；Since the fusing point of PA is 240 degree, so when two kinds of originals
The moment for expecting melt contacts inevitably occurs heat and transmits between PA and PVA, 32 DEG C of temperature is passed to PVA by PA,
PVA can be increased to 186 DEG C in moment from 154 DEG C, and then moment melts the condition for reaching spinning.The modified water solubility of the present invention
PVA is compared with traditional PVA, due to reducing fusing point, can melt at 186 DEG C, therefore, not only ensures PVA sea components
Can be with dystectic PA melt composite spinnings, and the fusing point of PVA is larger apart from its conventional 215 DEG C of decomposition temperature, is reaching
The problem of PVA is decomposed can't occur while fusing point, solve traditional PVA and encounter the PA of high temperature and decompose and can not melt
The problem of composite spinning.
（7）, two kinds of raw material melts are respectively fed to spinning manifold, squeezed out after metering pump accurate measurement, be assigned to spinning
In composite component in babinet, island component is evenly distributed in sea component by the distribution duct in composite component, by same
Spinneret orifice sprays, and carries out composite spinning, obtains using PA as island component, and PVA is the fabric of island-in-sea type as-spun fibre of extra large component；The present embodiment
In, the island volume components percentage range of the metering pump accurate measurement in spinning manifold is 70%, sea component volume percent range
It is 30%.12 MPa of spinning pressure.
（8）, by fabric of island-in-sea type as-spun fibre obtained stretch and final finishing, you can obtain collection pencil sea-island fibre.If
The sea-island fibre is immersed in hot water, the marine facies component PVA in sea-island fibre is dissolved away, you can obtains the ultra-fine fibres of PA of collection pencil
Dimension.In the present embodiment, hot water temperature is set as 99 DEG C, and soaking time is 45 seconds, you can the sea component PVA in sea-island fibre is complete
Fully dissolved is fallen.
（Three）, sea-island fibre final finishing
（9）, the sea-island fibre of acquisition is carried out to cooling, drawing-off, oils, dry, after the processes such as network, winding obtains final sea
Island fibrous finished product.
Embodiment 3：
The present embodiment is repeated no more with embodiment 1,2 same sections, the difference is that：
A kind of PA/PVA sea-island fibres with water-soluble marine facies of the present embodiment, by PA as island phase component, PVA is as marine facies group
The as-spun fibre formed, drawn, thermal finalization is divided to obtain sea-island fibre, the island phase component of as-spun fibre accounts for fibre section product
85%, sea component accounts for the 15% of fibre section product, and the fiber number of sea-island fibre is 1.6~14dtex, and fracture strength is 3~6cN/
Dtex, elongation at break be 7~10%, island component single fiber fiber number in 0.8dtex hereinafter, PVA be water-solubility PVA master batch, the water
Dissolubility PVA master batches are merged by the raw material of following weight ratio：50~70 parts of polyvinyl alcohol；Polyalcohols or salt chemical combination
25 parts of object modifying agent；7 parts of antioxidant；7 parts of lubricant；35 parts of deionized water.
Wherein, polyalcohols or salt compounds modifying agent are polyethylene glycol, acetate, and antioxidant is β-（3,5 2 uncles
Butyl 4- hydroxy-phenies）, lubricant is calcium stearate.The addition of antioxidant is intended to slow down asking for the thermal degradation of PVA and xanthochromia
Topic, the addition of lubricant are intended to improve the problem of the flowing and formability difference of PVA.
Fusion method be first by polyalcohols or salt compounds modifying agent in deionized water dissolving, then same antioxidant,
Lubricant, polyvinyl alcohol are uniform, and modified PVA slices, 190 DEG C of the fusing point of PVA slices are obtained after dry；Melting range
175 DEG C~195 DEG C, 220 DEG C of heat decomposition temperature.
The present embodiment production has the technique of the PA/PVA sea-island fibres of water-soluble marine facies, includes the following steps：
（One）, water-solubility PVA master batch preparation
（1）, by corresponding weight ratio polyvinyl alcohol is added in vacuum feeder, and open vacuum feeder；According to
Than successively by polyethylene glycol, acetate, β-（3,5 di-t-butyl 4- hydroxy-phenies）, calcium stearate and deionized water injection it is true
In empty feeder；
（2）, open vacuum feeder heating valve, be warming up to 85 DEG C, through vertical conical spiral ribbon mixer be kneaded 90 minutes；
（3）, after mixing, into screw extruder extruding pelletization, 95 DEG C of one area's temperature of screw extruder；Two area's temperature 120
℃；Three 150 DEG C of area's temperature；Four 175 DEG C of area's temperature；Five 200 DEG C of area's temperature, obtain continuous strand；
（4）, the strand of extrusion is subjected to pelletizing after air-cooled, obtain the particle of 3mm；
（Two）, sea-island fibre preparation
（5）, by the PA raw materials as island component and the water-solubility PVA master batch as sea component respectively by screw extruder into
Row melting extrusion；The sea component of the present embodiment selects the trade mark for the PVA master batches of 0599/B, and island component PA selects PA6, first, PA6
125 DEG C of chip drying temperature, 4 hours drying times.110 DEG C of PVA0599/B drying temperatures, 4 hours drying times.Then, PA6
Into A screw rods, zone temperature is 225 DEG C of an area, 240 DEG C of 2nd area, 250 DEG C of 3rd area, 255 DEG C of 4th area, 265 DEG C of 5th area.
PVA0599/B enters B screw rods, 115 DEG C of one area of zone temperature, 125 DEG C of 2nd area, 140 DEG C of 3rd area, 150 DEG C of 4th area, 160 DEG C of 5th area.
A Screw Extrusions ratio 85%, B Screw Extrusions ratio 15%.
（6）, two kinds of raw material melts after extrusion molten be respectively fed to melt pipe heat；The heating temperature of the two
It is set as ensuring to be formed island and sea after the distribution duct contact of composite component in spinning manifold respectively when two kinds of raw material melts
Standard, in the present embodiment, the melt pipe temperature setting of PA raw materials is 260 DEG C, and the melt pipe temperature setting of PVA raw materials is
160 DEG C, the heat of island component and sea component transmits temperature difference and is set as 20 DEG C；Since the fusing point of PA is 240 degree, so when two kinds of originals
The moment for expecting melt contacts inevitably occurs heat and transmits between PA and PVA, 20 DEG C of temperature is passed to PVA by PA,
PVA can be increased to 180 DEG C in moment from 160 DEG C, and then moment melts the condition for reaching spinning.The modified water solubility of the present invention
PVA is compared with traditional PVA, due to reducing fusing point, can melt at 180 DEG C, therefore, not only ensures PVA sea components
Can be with dystectic PA melt composite spinnings, and the fusing point of PVA is larger apart from its conventional 220 DEG C of decomposition temperature, is reaching
The problem of PVA is decomposed can't occur while fusing point, solve traditional PVA and encounter the PA of high temperature and decompose and can not melt
The problem of composite spinning.
（7）, two kinds of raw material melts are respectively fed to spinning manifold, squeezed out after metering pump accurate measurement, be assigned to spinning
In composite component in babinet, island component is evenly distributed in sea component by the distribution duct in composite component, by same
Spinneret orifice sprays, and carries out composite spinning, obtains using PA as island component, and PVA is the fabric of island-in-sea type as-spun fibre of extra large component；The present embodiment
In, the island volume components percentage range of the metering pump accurate measurement in spinning manifold is 80%, sea component volume percent range
It is 20%.15 MPa of spinning pressure.
（8）, by fabric of island-in-sea type as-spun fibre drawn obtained and final finishing, you can obtain the sea-island fibre of collection pencil.Such as
Fruit immerses the sea-island fibre in hot water, dissolves away the marine facies component PVA in sea-island fibre, you can obtains the ultra-fine fibres of PA of collection pencil
Dimension.In the present embodiment, hot water temperature is set as 100 DEG C, and soaking time is 30 seconds, you can by the sea component PVA in sea-island fibre
It is completely dissolved.
（Three）, sea-island fibre final finishing
（9）, the sea-island fibre of acquisition is carried out to cooling, drawing-off, oils, dry, after the processes such as network, winding obtains final sea
Island fibrous finished product.
Embodiment 4：
The present embodiment is repeated no more with 1,2,3 same section of embodiment, the difference is that：The sea component of the present embodiment selects
The trade mark is the PVA master batches of 0899/B, and island component PA selects PA66, and first, 115 DEG C~125 DEG C of PA66 chip dryings temperature is dry
4~6 hours time, 105 DEG C~110 DEG C of PVA0599/B drying temperatures, 4~6 hours drying times.Then, PA66 enters A spiral shells
Bar, zone temperature be 225 DEG C~230 DEG C of an area, 240 DEG C~245 DEG C of 2nd area, 250 DEG C~255 DEG C of 3rd area, 265 DEG C of 4th area~
270 DEG C, 275 DEG C~285 DEG C of 5th area.PVA0899/B enters B screw rods, 125 DEG C~130 DEG C of one area of zone temperature, 140 DEG C of 2nd area
~145 DEG C, 160 DEG C~165 DEG C of 3rd area, 175 DEG C~180 DEG C of 4th area, 185 DEG C~190 DEG C of 5th area.A Screw Extrusions ratio 70%, B
Screw Extrusion ratio 0%.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art
Those of ordinary skill, the present invention essential scope in, the variations, modifications, additions or substitutions made, should all belong to the present invention
Protection domain.
Claims (10)
1. a kind of PA/PVA sea-island fibres with water-soluble marine facies, it is characterised in that：By PA as island phase component, PVA conducts
The as-spun fibre that marine facies component is formed, drawn, thermal finalization obtain sea-island fibre, and the island phase component of as-spun fibre accounts for fibre section
Long-pending 60%~85%, sea component account for the 40%~15% of fibre section product, and the fiber number of sea-island fibre is 1.6~14dtex, and fracture is strong
Degree is 3~6cN/dtex, and elongation at break is 7~10%, and island component single fiber fiber number is in 0.8dtex hereinafter, PVA is water-solubility PVA
Master batch, the water-solubility PVA master batch are merged by the raw material of following weight ratio：
50~70 parts of polyvinyl alcohol；
15~25 parts of polyalcohols or salt compounds modifying agent；
3~7 parts of antioxidant；
3~7 parts of lubricant；
25~35 parts of deionized water；
Fusion method is first by polyalcohols or salt compounds modifying agent in deionized water dissolving, then same antioxidant, lubrication
Agent, polyvinyl alcohol are uniform, and modified PVA slices, 180~190 DEG C of the fusing point of PVA slices are obtained after dry；Melting range
175-195 DEG C, 210 DEG C~220 DEG C of heat decomposition temperature.
2. the PA/PVA sea-island fibres with water-soluble marine facies according to claim 1, characterized in that the water solubility
PVA master batches are merged by the raw material of following weight ratio：
60 parts of polyvinyl alcohol；
20 parts of polyalcohols or salt compounds modifying agent；
5 parts of antioxidant；
5 parts of lubricant；
30 parts of deionized water.
3. the PA/PVA sea-island fibres with water-soluble marine facies according to claim 1, it is characterized in that：The polyalcohols
Or salt compounds modifying agent is one or more of hydramine, polyethylene glycol, acetate or phosphate.
4. the PA/PVA sea-island fibres with water-soluble marine facies according to claim 1, it is characterized in that：The antioxidant
For aniline kind antioxidant or Hinered phenols antioxidant.
5. the PA/PVA sea-island fibres with water-soluble marine facies according to claim 4, it is characterized in that：The Hinered phenols
Antioxidant is β-（3,5- di-tert-butyl-hydroxy phenyls）Or β-（3,5 di-t-butyl 4- hydroxy-phenies）.
6. the PA/PVA sea-island fibres with water-soluble marine facies according to claim 1, it is characterized in that：The lubricant is
Calcium stearate or multi-functional aliphatic acid complex ester.
7. a kind of technique producing the PA/PVA sea-island fibres described in claim 1 with water-soluble marine facies, which is characterized in that packet
Include following steps：
（One）, water-solubility PVA master batch preparation
（1）, by corresponding weight ratio polyvinyl alcohol is added in vacuum feeder, and open vacuum feeder；According to
Than polyalcohols or salt compounds modifying agent, antioxidant, lubricant and deionized water are injected vacuum feeder successively
It is interior；
（2）, open vacuum feeder heating valve, be warming up to 75 DEG C~85 DEG C, through vertical conical spiral ribbon mixer be kneaded 80
~90 minutes；
（3）, after mixing, into screw extruder extruding pelletization, 80 DEG C~95 DEG C of one area's temperature of screw extruder；Two area's temperature
105 DEG C~120 DEG C of degree；Three 130 DEG C of area's temperature~150 DEG C；Four 155 DEG C of area's temperature~175 DEG C；Five area's temperature 180 DEG C~200
DEG C, obtain continuous strand；
（4）, the strand of extrusion is subjected to pelletizing after air-cooled, obtain the particle of 3mm；
（Two）, sea-island fibre preparation
（5）, 115 DEG C~125 DEG C of PA drying temperatures, 4~6 hours drying times, 105 DEG C~110 DEG C of PVA drying temperatures are dry
4~6 hours time squeezed the PA raw materials as island component and the water-solubility PVA master batch as sea component by screw rod respectively
Go out machine and carries out melting extrusion；PA enters A screw extruders, and A screw extruders squeeze out ratio 60%~80%, and PVA enters B screw rods
Extruder, B screw extruders squeeze out ratio 40%~20%；
（6）, two kinds of raw material melts after extrusion molten be respectively fed to melt pipe heat；The heating temperature of the two is arranged
To ensure to form the standard on island and sea after the distribution duct contact of composite component in spinning manifold respectively when two kinds of raw material melts,
Island component and the heat of sea component transmit temperature difference and are set as 20 DEG C~45 DEG C；
（7）, two kinds of raw material melts are respectively fed to spinning manifold, squeezed out after metering pump accurate measurement, be assigned to spinning manifold
In interior composite component, island component is evenly distributed in sea component by the distribution duct in composite component, by same spinneret
Hole sprays, and carries out composite spinning, obtains using PA as island component, and PVA is the fabric of island-in-sea type as-spun fibre of extra large component；
（8）, by fabric of island-in-sea type as-spun fibre drawn obtained and final finishing, you can obtain the sea-island fibre of collection pencil；
（Three）, sea-island fibre final finishing
（9）, the sea-island fibre of acquisition is carried out to cooling, drawing-off, oils, dry, after the processes such as network, winding obtains final sea
Island fibrous finished product.
8. the production technology of the PA/PVA sea-island fibres according to claim 7 with water-soluble marine facies, it is characterized in that：Institute
State step（Two）In, the melt pipe temperature setting of PA raw materials is 260 DEG C~285 DEG C, the melt pipe temperature setting of PVA raw materials
It is 145 DEG C~160 DEG C.
9. the production technology of the PA/PVA sea-island fibres according to claim 7 with water-soluble marine facies, it is characterized in that：Institute
State step（Two）In, the island volume components percentage range of the metering pump accurate measurement in spinning manifold is 60%~80%, extra large group
Partial volume percentage range is 40%~20%.
10. the production technology of the PA/PVA sea-island fibres according to claim 7 with water-soluble marine facies, it is characterized in that：
Sea-island fibre is immersed in hot water, the marine facies component PVA in sea-island fibre is dissolved away, you can the PA superfine fibres of collection pencil are obtained,
The hot water temperature is set as 98 DEG C~100 DEG C, and soaking time is 30 seconds~1 minute.
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