CN110042489A - A kind of preparation method of high crimp viscose - Google Patents
A kind of preparation method of high crimp viscose Download PDFInfo
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- CN110042489A CN110042489A CN201910364273.7A CN201910364273A CN110042489A CN 110042489 A CN110042489 A CN 110042489A CN 201910364273 A CN201910364273 A CN 201910364273A CN 110042489 A CN110042489 A CN 110042489A
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- viscose
- preparation
- spinning
- bath
- crimp
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- 229920000297 Rayon Polymers 0.000 title claims abstract description 90
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 238000009987 spinning Methods 0.000 claims abstract description 52
- 239000000835 fiber Substances 0.000 claims abstract description 45
- 239000003292 glue Substances 0.000 claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000000465 moulding Methods 0.000 claims abstract description 27
- 239000003398 denaturant Substances 0.000 claims abstract description 19
- 239000003513 alkali Substances 0.000 claims abstract description 16
- 238000004925 denaturation Methods 0.000 claims abstract description 12
- 230000036425 denaturation Effects 0.000 claims abstract description 12
- 229920002678 cellulose Polymers 0.000 claims abstract description 8
- 239000001913 cellulose Substances 0.000 claims abstract description 8
- 238000007598 dipping method Methods 0.000 claims abstract description 6
- 238000001914 filtration Methods 0.000 claims abstract description 6
- 238000000227 grinding Methods 0.000 claims abstract description 6
- 238000007670 refining Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 25
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 22
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical group [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 9
- 229960001763 zinc sulfate Drugs 0.000 claims description 9
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 9
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 8
- 235000011152 sodium sulphate Nutrition 0.000 claims description 8
- 150000001412 amines Chemical class 0.000 claims description 5
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 claims description 4
- 229920001400 block copolymer Polymers 0.000 claims description 4
- JBKVHLHDHHXQEQ-UHFFFAOYSA-N epsilon-caprolactam Chemical compound O=C1CCCCCN1 JBKVHLHDHHXQEQ-UHFFFAOYSA-N 0.000 claims description 4
- 229940051841 polyoxyethylene ether Drugs 0.000 claims description 3
- 229920000056 polyoxyethylene ether Polymers 0.000 claims description 3
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 2
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims 1
- 239000011701 zinc Substances 0.000 claims 1
- 229910052725 zinc Inorganic materials 0.000 claims 1
- 238000004040 coloring Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 11
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 10
- 238000005406 washing Methods 0.000 description 9
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000006477 desulfuration reaction Methods 0.000 description 6
- 230000023556 desulfurization Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 235000019270 ammonium chloride Nutrition 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000003921 oil Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000004061 bleaching Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- -1 polyoxyethylene Polymers 0.000 description 3
- 229920002545 silicone oil Polymers 0.000 description 3
- 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 2
- 239000005708 Sodium hypochlorite Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000036314 physical performance Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 2
- 239000008234 soft water Substances 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
- 239000004902 Softening Agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 125000002252 acyl group Chemical group 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000012792 core layer Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 210000004209 hair Anatomy 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 150000003951 lactams Chemical class 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002052 molecular layer Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Classifications
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
-
- 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
- D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
- D01D10/06—Washing or drying
-
- 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
- D01D5/06—Wet 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
- 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
- D01F11/02—Chemical after-treatment of artificial filaments or the like during manufacture of cellulose, cellulose derivatives, or proteins
-
- 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
- D01F2/00—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof
- D01F2/06—Monocomponent artificial filaments or the like of cellulose or cellulose derivatives; Manufacture thereof from viscose
- D01F2/08—Composition of the spinning solution or the bath
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
- D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
- D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
- D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
- D06L4/23—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using hypohalogenites
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
- D06M15/6436—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing amino groups
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/50—Modified hand or grip properties; Softening compositions
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Artificial Filaments (AREA)
Abstract
The invention discloses a kind of preparation methods of high crimp viscose, comprising the following steps: (1) liquid at the beginning of the high-alkali fine viscose glue than, high degree of ripeness being prepared by dipping, squeezing, crushing, experienced, yellow, grinding, filtering, deaeration step in cellulose pulp.(2) delay to form denaturant solution being added in the preparation process of liquid at the beginning of the viscose glue, be sufficiently mixed to obtain denaturation spinning viscose.(3) the denaturation spinning viscose is passed through into spinning bath, carries out spinning moulding and obtains as-spun fibre tow.(4) the as-spun fibre tow is first passed around into plasticizing-bath, carries out plasticizing drawing-off；Then the fibre bundle after being plasticized drawing-off is subjected to air bath drawing-off, cooling in cold air.(5) fiber after drawing-off is obtained into high crimp viscose finished product by refining, oiling, dry.High crimp viscose prepared by the present invention has many advantages, such as that crimp percent and crimpness are high, and appearance is well-pressed, good hand feeling, coloring are strong.
Description
Technical field
The present invention relates to cellulose fibre technical fields, and in particular to a kind of technology of preparing of high crimp viscose.
Background technique
Excellent crimp property possessed by crimped fibre plays promotion during viscose rayon subsequent textile process and makees
With making finished yarn obtained that there is wool type style since it possesses higher cohesive force and resilience simultaneously.Use such yarn
Line production fabric hand feel is plentiful, fluffy insulation, be the ideal chose of autumn and winter.
Viscose rayon, because having good hygroscopicity and smooth nice and cool, ventilative, antistatic, antiultraviolet, easy dyeing
The features such as, the characteristic of cotton, silk is had both, and increasingly have been favored by people.In recent years, China's viscose rayon was rapidly sent out
Exhibition, becomes the viscose rayon big producer of the first in the world, but the problems such as developing slowly is still had in terms of functional fiber,
Wherein crimp viscose research is minimum, defines functional viscose fiber to a certain extent in the development in certain fields and answers
With.
Summary of the invention
The technical problems to be solved by the present invention are: in view of the deficienciess of the prior art, providing a kind of high curling viscose glue
The preparation method of fiber, prepared high crimp viscose have that crimp percent and crimpness are high, appearance is well-pressed, good hand feeling,
The advantages that coloring is strong, and simple production process, production cost are low.
In order to solve the above technical problems, the technical scheme is that
A kind of preparation method of high crimp viscose, comprising the following steps:
(1) viscose glue just liquid preparation: by cellulose pulp by dipping, squeezing, crushing, experienced, yellow, grinding, filtering,
Liquid at the beginning of the viscose glue of high-alkali fine ratio, high degree of ripeness is prepared in deaeration step.
(2) it is denaturalized the preparation of spinning viscose: delaying molding denaturant molten being added in the preparation process of liquid at the beginning of the viscose glue
Liquid is sufficiently mixed to obtain denaturation spinning viscose；Wherein delaying the mixed proportion for forming denaturant is α-fibre in the opposite first liquid of viscose glue
Tie up the 0.1~10% of the amount of element.
(3) spinning moulding: passing through spinning bath for the denaturation spinning viscose, carries out spinning moulding and obtains as-spun fibre silk
Beam.
(4) drawing-off: first passing around plasticizing-bath for the as-spun fibre tow, carries out plasticizing drawing-off, the plasticizing drawing-off
Drawing-off ratio is 35~50%；Then fibre bundle after being plasticized drawing-off is carried out to air bath drawing-off, cold in cold air
But, the drawing-off ratio of the air bath drawing-off is 3~8%.
(5) it post-processes: the fiber after drawing-off is obtained into high crimp viscose finished product by refining, oiling, dry.
As a kind of improved technical solution, the degree of polymerization of the cellulose pulp is 550~700.
As a kind of improved technical solution, at the beginning of the high-alkali fine viscose glue than, high degree of ripeness that the step (1) is prepared
The index of liquid are as follows: alpha-cellulose: 8.5~10.5wt%；Containing alkali: 6.5~8.5wt%；Viscosity: 45~50s (falling ball method)；Maturation
Degree: 15~20ml (ammonium chloride method).
As a kind of improved technical solution, it is described delay form denaturant be ethylenediamine, ethylene glycol, triethanolamine, oneself
One or more of lactams.
It is described that molding denaturant is delayed to add in yellow step as a kind of preferred technical solution.
As a kind of improved technical solution, contain in the spinning bath: the stable molding agent of 0.5~5wt%；90~
The sulfuric acid of 120g/L；The sodium sulphate of 280~320g/L；The zinc sulfate of 15~20g/L；The temperature of the spinning bath is 45~55
℃。
As a kind of preferred technical solution, the stable molding agent is in polyoxyethylene fatty amine or polyoxyethylene ether
It is at least one.
As a kind of preferred technical solution, contain in the plasticizing-bath: 5~25g/L of sulfuric acid, 150~200g/ of sodium sulphate
L, 1~10g/L of zinc sulfate；The temperature of the plasticizing-bath is 98~100 DEG C.
As a kind of preferred technical solution, the temperature of the air bath is 0~25 DEG C.
As a kind of further preferred technical solution, the temperature of the air bath is 3~10 DEG C.
As a kind of improved technical solution, the oiling step uses high-molecular block copolymer finish.
As a kind of preferred technical solution, the high-molecular block copolymer finish is a kind of weak cation linear multiple
The modified silicone softening agent of copolymerized block, can give fabric super soft, fluffy, smooth and plentiful and flexible hand
Sense.After high crimp viscose produced by the present invention is using finish processing, product crimps, is fluffy, soft and flexible, has
Effect improves product wearability and comfort.
As a kind of preferred technical solution, it is preferable to use Guangzhou moral roc green woods for the high-molecular block copolymer finish
Expect the smooth block silicone oil 700 of Science and Technology Ltd.'s production.Smooth block silicone oil 700 is having for quaternised modified multi-component copolymer
Machine silicone softener.
As a kind of perferred technical scheme, in the step (5) refining process include: a washing, desulfurization, two washing,
Three washings, bleaching.
As a kind of specific prioritization scheme, the washing, desulfurization, bleach, oil technical indicator are as follows:
Washing: soft water, room temperature；
Desulfurization: sodium hydroxide, 2~10g/L of concentration, 80~95 DEG C of temperature；
Bleaching: sodium hypochlorite, 1~10g/L of concentration, 55~65 DEG C of temperature, pH value 8~9.5；
It oils: 5~10g/L of concentration, 60~80 DEG C of temperature.
As a kind of perferred technical scheme, the drying temperature is 110~140 DEG C.
By adopting the above-described technical solution, the beneficial effects of the present invention are:
The present invention is on the basis of common viscose fiber production technology, by preparing the high-alkali fine viscose glue than, high degree of ripeness
First liquid, and delay to form denaturant in the addition of the preparation step of liquid at the beginning of viscose glue, stable molding agent is added in spinning bath, and adjust
Spinning bath composition is saved, so that spinning moulding process greatly mitigates, and to be conducive to fiber not right for the denaturant that delays to form being added
Claim the formation of core-skin layer cross section, therefore the fiber generated has the asymmestry section shape of apparent skin core layer thickness uneven distribution
State, since the cortex of fiber and the fine structure of sandwich layer are different, its physical mechanical property is not also identical.Fibrocortex
Partial elasticity is big, and the deformation after drawn largely belongs to elastic deformation, and the plasticity of sandwich layer part is big, the shape under stretching action
Change then substantially belongs to plastic deformation.The fiber of this core-skin type asymmestry section form, after specifically stretching, in drawing force
When the lower rapid stretching of effect then relaxes, since the contraction between cortex and sandwich layer is different, keep fiber bright along being entirely axially formed
Aobvious sinusoidal curling.
The present invention at the beginning of viscose glue in liquid be added delay form denaturant, not only viscose rayon spinning technique is played and is delayed
Molding effect, and the Surface Creation molecular layer of rigid shaped fibers can be made, it can delay H+To fibrous inside permeate, promote and
Reinforce the formation of cortex, so that the fibre section form unsymmetrical factors just shaped become apparent, the fiber of formation
Crispation number and Curl it is higher.
Therefore, the present invention makes obtained fiber exist by the techniques such as specific moulding process and optimization drawing-off ratio
Higher level can be reached in terms of crispation number and crimpness performance indicator, and its production cost approaches or slightly above common viscose glue
Fiber provides a kind of function admirable, moderate New Viscose Fibre raw material for downstream yarn producer.
The specific targets for the high crimp viscose that the present invention is prepared are as follows: crispation number >=10/25mm, crimpness >=
5%, doing breaking strength is 2.0~3.0cN/dtex, and wet breaking strength is 0.9~1.5cN/dtex, and dry elongation at break is 15
~25%, hook joint breaking strength is 0.5~1.5cN/dtex, and line density is 1.0~6.0dtex.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the sectional view for the high crimp viscose that the present invention is prepared；
Fig. 2 is that comparative example 1 of the present invention is not added with the sectional view for delaying to form the viscose rayon of denaturant；
Fig. 3 is the sectional view of common viscose fiber；
Fig. 4 is the fibre bundle rolled efficiency figure for the high crimp viscose that the present invention is prepared.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is further explained.It should be understood that these embodiments are merely to illustrate this hair
It is bright rather than limit the scope of the invention.In addition, it should also be understood that, after reading the content taught by the present invention, art technology
Personnel can make various changes or modifications the present invention, and such equivalent forms equally fall within the application the appended claims and limited
Fixed range.
Embodiment 1
(1) viscose glue just liquid preparation: by the degree of polymerization be 600 cellulose pulp by dipping, squeezing, crush, it is experienced, yellow
Change, the first liquid of viscose glue of high-alkali fine ratio, high degree of ripeness is prepared in grinding, filtering, deaeration step；The index of the first liquid of the viscose glue
Are as follows: alpha-cellulose: 9.0wt%；Containing alkali: 6.5wt%；Viscosity: 45s (falling ball method)；Degree of ripeness: 15ml (ammonium chloride method).
(2) preparation of spinning viscose: delay to form denaturant ethylenediamine being added in the yellowing processes of liquid at the beginning of the viscose glue
Solution is sufficiently mixed to obtain denaturation spinning viscose；At the beginning of wherein delaying the mixed proportion for forming denaturant ethylenediamine to be opposite viscose glue
The 0.5wt% of the amount of alpha-cellulose in liquid.
(3) spinning moulding: passing through spinning bath for the denaturation spinning viscose, carries out spinning moulding and obtains as-spun fibre silk
Beam.Contain in the spinning bath: the stable molding agent polyoxyethylene fatty amine of 0.5wt%；The sulfuric acid of 90g/L；The sulphur of 280g/L
Sour sodium；The zinc sulfate of 15g/L；The temperature of the spinning bath is 45 DEG C.
(4) drawing-off: first passing around plasticizing-bath for the as-spun fibre tow, carries out plasticizing drawing-off, the plasticizing drawing-off
Drawing-off ratio is 35~50%；Contain in the plasticizing-bath: sulfuric acid 5g/L, sodium sulphate 150g/L, zinc sulfate 2g/L；The plasticizing
The temperature of bath is 98 DEG C；Then fibre bundle after being plasticized drawing-off is carried out to air bath drawing-off, cold in 5 DEG C of cold air
But, the drawing-off ratio of the air bath drawing-off is 3%.
(5) it post-processes: the fiber after drawing-off is obtained into high crimp viscose finished product by refining, oiling, dry.
Embodiment 2
(1) viscose glue just liquid preparation: by the degree of polymerization be 650 cellulose pulp by dipping, squeezing, crush, it is experienced, yellow
Change, the first liquid of viscose glue of high-alkali fine ratio, high degree of ripeness is prepared in grinding, filtering, deaeration step；The index of the first liquid of the viscose glue
Are as follows: alpha-cellulose: 9.5wt%；Containing alkali: 7.0wt%；Viscosity: 48s (falling ball method)；Degree of ripeness: 17ml (ammonium chloride method).
(2) preparation of spinning viscose: using spin before injection technique before spinning at the beginning of spinning in liquid be added delay molding become
Property agent ethylene glycol solution, be sufficiently mixed to obtain denaturation spinning viscose；Wherein delay form denaturant ethylene glycol mixed proportion be
The 2wt% of the amount of alpha-cellulose in the opposite first liquid of viscose glue.
(3) spinning moulding: passing through spinning bath for the denaturation spinning viscose, carries out spinning moulding and obtains as-spun fibre silk
Beam.Contain in the spinning bath: the stable molding agent polyoxyethylene ether of 1.0wt%；The sulfuric acid of 95g/L；The sodium sulphate of 290g/L；
The zinc sulfate of 18g/L；The temperature of the spinning bath is 50 DEG C.
(4) drawing-off: first passing around plasticizing-bath for the as-spun fibre tow, carries out plasticizing drawing-off, the plasticizing drawing-off
Drawing-off ratio is 40%；Contain in the plasticizing-bath: sulfuric acid 15g/L, sodium sulphate 170g/L, zinc sulfate 5g/L；The plasticizing-bath
Temperature be 99 DEG C；Then fibre bundle after being plasticized drawing-off is carried out to air bath drawing-off, cold in 8 DEG C of cold air
But, the drawing-off ratio of the air bath drawing-off is 4%.
(5) it post-processes: the fiber after drawing-off is obtained into high crimp viscose finished product by refining, oiling, dry.
Embodiment 3
(1) viscose glue just liquid preparation: by the degree of polymerization be 700 cellulose pulp by dipping, squeezing, crush, it is experienced, yellow
Change, the first liquid of viscose glue of high-alkali fine ratio, high degree of ripeness is prepared in grinding, filtering, deaeration step；The index of the first liquid of the viscose glue
Are as follows: alpha-cellulose: 9.15wt%；Containing alkali: 7.4wt%；Viscosity: 50s (falling ball method)；Degree of ripeness: 20ml (ammonium chloride method).
(2) preparation of spinning viscose: delay to form denaturant acyl in oneself being added in the yellowing processes of liquid at the beginning of the viscose glue
Amine aqueous solution is sufficiently mixed to obtain denaturation spinning viscose；It is relatively viscous for wherein delaying the mixed proportion for forming denaturant caprolactam
The 1.5% of the amount of alpha-cellulose in the first liquid of glue.
(3) spinning moulding: passing through spinning bath for the denaturation spinning viscose, carries out spinning moulding and obtains as-spun fibre silk
Beam.Contain in the spinning bath: the stable molding agent polyoxyethylene fatty amine of 1.3wt%；The sulfuric acid of 105g/L；The sulphur of 320g/L
Sour sodium；The zinc sulfate of 20g/L；The temperature of the spinning bath is 55 DEG C.
(4) drawing-off: first passing around plasticizing-bath for the as-spun fibre tow, carries out plasticizing drawing-off, the plasticizing drawing-off
Drawing-off ratio is 45%；Contain in the plasticizing-bath: sulfuric acid 20g/L, sodium sulphate 200g/L, zinc sulfate 10g/L；The plasticizing-bath
Temperature be 100 DEG C；Then fibre bundle after being plasticized drawing-off is carried out to air bath drawing-off, cold in 10 DEG C of cold air
But, the drawing-off ratio of the air bath drawing-off is 8%.
(5) it post-processes: the fiber after drawing-off is washed by a washing, desulfurization, two washings, three, bleaches, oil,
125 DEG C of drying obtain high crimp viscose finished product.The washing, desulfurization, bleach, oil technical indicator are as follows:
Washing: soft water, room temperature；
Desulfurization: sodium hydroxide, concentration 7g/L, 80 DEG C of temperature；
Bleaching: sodium hypochlorite, concentration 5g/L, 55 DEG C of temperature, pH value 8.5；
It oils: smooth 700 concentration 4g/L of block silicone oil, temperature 60 C.
Comparative example 1
Comparative example 1 the difference from embodiment 1 is that, do not include step (2), viscose glue just liquid directly carry out spinning.
Comparative example 2
Comparative example 2 the difference from embodiment 1 is that, in the spinning bath of step (3) do not contain stable molding agent.
Comparative example 3
Comparative example 3 the difference from embodiment 1 is that, the index of the first liquid of the viscose glue of step (1) are as follows: alpha-cellulose:
7.5wt%；Containing alkali: 5.6wt%；Viscosity: 42s (falling ball method)；Degree of ripeness: 12ml (ammonium chloride method).
The performance indicator of the finished fiber of embodiment 1-3 and comparative example 1-3 preparation is shown in Table 1.
Table 1
Can be seen that the high crimp viscose that is prepared of the present invention from attached drawing 1-4, not only with high crimpness and
Crimp percent, and the physical performance indexs such as its intensity, elongation also comparative superiority.And it is added without the comparison for delaying to form denaturant
The fiber crimp number and crimpness of example 1 are substantially reduced very much；The viscose rayon that comparative example 2 without containing stable molding agent obtains
Curling number and crimpness and its physical performance index be all not so good as embodiment 1；Using relatively low alkali fibre than with degree of ripeness
The curling number and crimpness for the viscose rayon that comparative example 3 obtains all are not so good as embodiment 1.
Claims (10)
1. a kind of preparation method of high crimp viscose, it is characterised in that the following steps are included:
(1) cellulose pulp the preparation of the first liquid of viscose glue: is passed through into dipping, squeezing, crushing, experienced, yellow, grinding, filtering, deaeration
Liquid at the beginning of the viscose glue of high-alkali fine ratio, high degree of ripeness is prepared in step；
(2) it is denaturalized the preparation of spinning viscose: delaying to form denaturant solution being added in the preparation process of liquid at the beginning of the viscose glue, fill
Divide and is mixed to get denaturation spinning viscose；Wherein delaying the mixed proportion for forming denaturant is alpha-cellulose in the opposite first liquid of viscose glue
0.1~10wt% of amount；
(3) spinning moulding: passing through spinning bath for the denaturation spinning viscose, carries out spinning moulding and obtains as-spun fibre tow；
(4) drawing-off: first passing around plasticizing-bath for the as-spun fibre tow, carries out plasticizing drawing-off, the drawing-off of the plasticizing drawing-off
Ratio is 35~50%；Then the fibre bundle after being plasticized drawing-off is subjected to air bath drawing-off, cooling, institute in cold air
The drawing-off ratio for stating air bath drawing-off is 3~8%；
(5) it post-processes: the fiber after drawing-off is obtained into high crimp viscose finished product by refining, oiling, dry.
2. the preparation method of high crimp viscose as described in claim 1, it is characterised in that: the cellulose pulp gathers
Right is 550~700.
3. the preparation method of high crimp viscose as described in claim 1, it is characterised in that: the step (1) is prepared into
The index of liquid at the beginning of the viscose glue of the high-alkali fine ratio, high degree of ripeness that arrive are as follows: alpha-cellulose: 8.5~10.5wt%；Containing alkali: 6.5~
8.5wt%；Viscosity: 45~50s；Degree of ripeness: 15~20ml.
4. the preparation method of high crimp viscose as described in claim 1, it is characterised in that: described to delay to form denaturant
For one or more of ethylenediamine, ethylene glycol, triethanolamine, caprolactam.
5. the preparation method of high crimp viscose as described in claim 1, it is characterised in that: described to delay to form denaturant
It is added in yellow step.
6. the preparation method of high crimp viscose as described in claim 1, it is characterised in that: contain in the spinning bath:
The stable molding agent of 0.5~5wt%；The sulfuric acid of 90~120g/L；The sodium sulphate of 280~320g/L；The sulfuric acid of 15~20g/L
Zinc；The temperature of the spinning bath is 45~55 DEG C.
7. the preparation method of high crimp viscose as claimed in claim 6, it is characterised in that: the stable molding agent is poly-
At least one of ethylene oxide fatty amine or polyoxyethylene ether.
8. the preparation method of high crimp viscose as described in claim 1, it is characterised in that: contain in the plasticizing-bath:
5~25g/L of sulfuric acid, 150~200g/L of sodium sulphate, 1~10g/L of zinc sulfate；The temperature of the plasticizing-bath is 98~100 DEG C.
9. the preparation method of high crimp viscose as described in claim 1, it is characterised in that: the temperature of the air bath is
0~25 DEG C.
10. the preparation method of high crimp viscose as described in claim 1, it is characterised in that: the oiling step is adopted
With high-molecular block copolymer finish.
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Effective date of registration: 20211203 Address after: 224400 Jiangsu Yancheng Funing high tech Industrial Development Zone Aoyang Avenue Saideli (Yancheng) Fiber Co.,Ltd. Applicant after: Saideli (Yancheng) Fiber Co.,Ltd. Address before: 224400 No.1, Aoyang Avenue, high tech Zone, Funing County, Yancheng City, Jiangsu Province Applicant before: FUNING AOYANG TECHNOLOGY CO.,LTD. |
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Application publication date: 20190723 |