CN105506879B - A kind of step fiber opening method of polyester-nylon composite superfine fibre two - Google Patents
A kind of step fiber opening method of polyester-nylon composite superfine fibre two Download PDFInfo
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- CN105506879B CN105506879B CN201610032660.7A CN201610032660A CN105506879B CN 105506879 B CN105506879 B CN 105506879B CN 201610032660 A CN201610032660 A CN 201610032660A CN 105506879 B CN105506879 B CN 105506879B
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- 239000000835 fiber Substances 0.000 title claims abstract description 130
- 239000002131 composite material Substances 0.000 title claims abstract description 71
- 239000004677 Nylon Substances 0.000 title claims abstract description 70
- 229920001778 nylon Polymers 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 46
- 206010061592 cardiac fibrillation Diseases 0.000 claims abstract description 148
- 230000002600 fibrillogenic effect Effects 0.000 claims abstract description 148
- 239000004744 fabric Substances 0.000 claims abstract description 54
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 230000009467 reduction Effects 0.000 claims abstract description 35
- 239000003513 alkali Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 15
- 238000012360 testing method Methods 0.000 claims abstract description 8
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 46
- 230000000694 effects Effects 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000007670 refining Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 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 claims description 2
- 239000007791 liquid phase Substances 0.000 claims description 2
- 239000011734 sodium Substances 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- 238000003786 synthesis reaction Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 239000013043 chemical agent Substances 0.000 abstract 1
- 230000000704 physical effect Effects 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 13
- 230000008569 process Effects 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 230000007062 hydrolysis Effects 0.000 description 6
- 238000006460 hydrolysis reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- 239000003518 caustics Substances 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 239000004952 Polyamide Substances 0.000 description 1
- 229920004933 Terylene® Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000413 hydrolysate Substances 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- TUJKJAMUKRIRHC-UHFFFAOYSA-N hydroxyl Chemical compound [OH] TUJKJAMUKRIRHC-UHFFFAOYSA-N 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000006193 liquid solution Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- DFLCZDIXTAAMLZ-UHFFFAOYSA-N phthalic acid;sodium Chemical compound [Na].OC(=O)C1=CC=CC=C1C(O)=O DFLCZDIXTAAMLZ-UHFFFAOYSA-N 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B1/00—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating
- D06B1/10—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material
- D06B1/14—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller
- D06B1/145—Applying liquids, gases or vapours onto textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing or impregnating by contact with a member carrying the treating material with a roller the treating material being kept in the trough formed between two or more rollers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
- D06B23/02—Rollers
- D06B23/023—Guiding rollers
-
- 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
- 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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
Present invention is disclosed a kind of step fiber opening method of polyester-nylon composite superfine fibre two, including S1, Alkali reduction fibrillation step：On the two big rubbing surface guide wheel that polyester-nylon composite superfine fibre cloth is sleeved on to liquid stream dye machine, in the first fibrillation liquid and auxiliary agent, with the first fibrillation temperature, water slug tests and guide wheel rotating speed are specified, the fibrillation rate for making polyester-nylon composite superfine fibre cloth by the fibrillation of the very first time reaches first predetermined value；S2, mechanical fibrillation step：By the polyester-nylon composite superfine fibre cloth Jing Guo Alkali reduction fibrillation on the big rubbing surface guide wheel that liquid stream contaminates machine, in the second fibrillation liquid and auxiliary agent, with the second fibrillation temperature, water impact speed, water temperature and guide wheel rotating speed are specified, polyester-nylon composite superfine fibre cloth fibrillation rate after the mechanical fibrillation of the second time is reached second predetermined value.The beneficial effects of the invention are as follows using chemistry and mechanical secondary fibrillation method, influence of the chemical agent to fiber physical property can be not only reduced, and its Alkali reduction can be controlled in a relatively low scope.
Description
Technical field
The present invention relates to a kind of fiber opening method, more particularly to a kind of step fiber opening method of polyester-nylon composite superfine fibre two.
Background technology
It is a kind of composite fibre produced by composite spinning technology to wash brocade compound, and polyester-nylon complex fiber passes through fibrillation
Turn into superfine fibre after processing.
And be as the most basic requirement of automatic assembly line spool cloth (polyester-nylon composite superfine fibre cloth)：Fibrillation is fully (logical
Normal polyester-nylon composite superfine fibre fibrillation rate is just believed that fibrillation meets the requirements when reaching 60%)；Meanwhile, to have enough strength and
The winding resilience of thickness and fabric, flat deflection reaches most preferably, to ensure that cloth cover long-time stable on automatic erasing line is transported
Turn.
However, the fibrillation of existing polyester-nylon complex fiber is realized often through chemical fiber opening method, and chemical fiber opening method
It is divided into acidic treatment, alkali process method and organic solvent method again, and polyester-nylon composite superfine fibre is in the processing of Alkali reduction fibrillation, one
As all use alkali decrement method, i.e., polyester-nylon composite superfine fibre is arranged in fibrillation liquid, make to wash bright and beautiful bicomponent filament yarn fibrillation liquid,
Hydrolyzed under temperature, time and the comprehensive function of accelerator, terylene and polyamide fibre are cracked into single superfine fibre.
Meanwhile, it is continuously increased with the concentration, temperature, time of caustic soda, fibrillation is more and more abundant, the fiber number of superfine fibre
Attenuate, monofilament increasing number, fabric thickness first increases, soft, water absorption, suction solvent borne, dirt-removing power, wiping effect are equal
Reach optimum state.
But fibrillation is bigger, Alkali reduction is also bigger, and superfine fibre constantly occurs to hydrolyze and constantly attenuate, therefore strength of filament
Diminish, fiber stiffness (fibrous fracture intensity) declines, fabric thickness and grammes per square metre also decline therewith, cause fabric construction loose, knit
The winding resilience of thing and flat deflection decline, and strength also declines therewith, easily slippage and lose use value, it is impossible to realize fibrillation
The active balance of abundant and fabric intensity and thickness.
The content of the invention
The purpose of the present invention is exactly to pass through chemical technology there is provided one kind to solve the above-mentioned problems in the prior art
The mode combined with mechanical technology ensures fibrillation fully and fabric has the polyester-nylon composite superfine fibre of enough intensity and thickness
Fiber opening method.
The purpose of the present invention is achieved through the following technical solutions：
A kind of step fiber opening method of polyester-nylon composite superfine fibre two, comprises the following steps：
S1, Alkali reduction fibrillation step：The two big rubbing surface that polyester-nylon composite superfine fibre cloth is sleeved on into liquid stream dye machine is led
On wheel, in the first fibrillation liquid and auxiliary agent, with the first fibrillation temperature, water slug tests and guide wheel rotating speed are specified, by the very first time
Fibrillation the fibrillation rate of polyester-nylon composite superfine fibre cloth is reached first predetermined value；
S2, mechanical fibrillation step：The polyester-nylon composite superfine fibre cloth Jing Guo Alkali reduction fibrillation is contaminated into the big of machine in liquid stream to rub
On the guide wheel of wiping face, in the second fibrillation liquid and auxiliary agent, with the second fibrillation temperature, water impact speed, water temperature and guide wheel is specified to turn
Speed, makes polyester-nylon composite superfine fibre cloth fibrillation rate after the mechanical fibrillation of the second time reach second predetermined value.
It is preferred that, a kind of described step fiber opening method of polyester-nylon composite superfine fibre two, wherein：Two big rubbing surfaces are led
Wheel has difference in height, and they include gap in rotating shaft, the rotating shaft and are provided with two pieces of baffle plates coaxial with the rotating shaft, institute
The column casing for being provided with that the section that 4-8 block web plates enclose is regular polygon between baffle plate is stated, the column casing is enclosed with the baffle plate
Into stopper slot.
It is preferred that, a kind of described step fiber opening method of polyester-nylon composite superfine fibre two, wherein：The first fibrillation liquid includes
The concentration of sodium hydroxide, wherein sodium hydroxide is 6-8g/L.
It is preferred that, a kind of described step fiber opening method of polyester-nylon composite superfine fibre two, wherein：The auxiliary agent is comprehensive effect refining
Consumption in agent, and Alkali reduction fibrillation step is more than the consumption in mechanical fibrillation step.
It is preferred that, a kind of described step fiber opening method of polyester-nylon composite superfine fibre two, wherein：S1, Alkali reduction fibrillation step
In bath raio be 1:10.
It is preferred that, a kind of described step fiber opening method of polyester-nylon composite superfine fibre two, wherein：The first fibrillation temperature is
90~115 degrees Celsius；The water slug tests are 0.15-0.25MPA；The guide wheel rotating speed is 10HZ.
It is preferred that, a kind of described step fiber opening method of polyester-nylon composite superfine fibre two, wherein：The first fibrillation temperature is
90~95 degrees Celsius, the specified water slug tests are 0.2MPA.
It is preferred that, a kind of described step fiber opening method of polyester-nylon composite superfine fibre two, wherein：The very first time is 55-
65min。
It is preferred that, a kind of described step fiber opening method of polyester-nylon composite superfine fibre two, wherein：The first predetermined value is
38-42%.
It is preferred that, a kind of described step fiber opening method of polyester-nylon composite superfine fibre two, wherein：The group of the second fibrillation liquid
Divide same with the first fibrillation liquid phase, wherein the concentration of sodium hydroxide is 0.1-0.9g/L.
It is preferred that, a kind of described step fiber opening method of polyester-nylon composite superfine fibre two, wherein：The water impact speed is
35HZ, the water temperature is 90~115 degrees Celsius, and the second fibrillation temperature is 100~115 degrees Celsius.
It is preferred that, a kind of described step fiber opening method of polyester-nylon composite superfine fibre two, wherein：Second time is 110-
130min。
It is preferred that, a kind of described step fiber opening method of polyester-nylon composite superfine fibre two, wherein：The second predetermined value is
70%-80%.
The advantage of technical solution of the present invention is mainly reflected in：
1. deft design of the present invention, the usual think of for changing traditional fiber opening process often through chemical fibrillation to realize
Dimension, by effective combination of chemical fibrillation and mechanical fibrillation, on the basis of it ensure that fibrillation adequacy, turn avoid single super
Fine fibre because hydrolyze it is meticulous there is the problem of fibrous fracture intensity declines, it is ensured that fabric have sufficient intensity, thickness and
Resilience is wound, realize fibrillation fully has abundant intensity, thickness and wind elastic active balance with fabric.
2. the present invention's is simple to operate, each step linking is close, by the control to fibrillation rate and to Guiding wheel structure
Improve, the frictional force between increase polyester-nylon composite superfine fibre cloth and guide wheel contact surface, so as to provide necessity for mechanical fibrillation
Condition；And after mechanical fibrillation, it is possible to reduce individually using the amount of the fibrillation liquid required for chemical fibrillation, be conducive to drop
The production cost of low enterprise.
Brief description of the drawings
Fig. 1 is the common Guiding wheel structure schematic diagram of prior art；
Fig. 2 is big rubbing surface guide wheel schematic diagram in the present invention.
Embodiment
The purpose of the present invention, advantage and feature, will be carried out by the non-limitative illustration of preferred embodiment below diagram and
Explain.These embodiments are only the prominent examples using technical solution of the present invention, it is all take equivalent substitution or equivalent transformation and
The technical scheme of formation, all falls within the scope of protection of present invention.
The step fiber opening method of a kind of polyester-nylon composite superfine fibre two that the present invention is disclosed, using first Alkali reduction fibrillation (chemical work
Skill), the two-step method of rear machinery fibrillation changes the general usual thinking that fibrillation is carried out only with chemical technology of traditional handicraft.
Specifically, this method comprises the following steps：
S1, Alkali reduction fibrillation step：The polyester-nylon composite superfine fibre cloth of specified wt is sleeved on to two on liquid stream dye machine
On the individual big rubbing surface guide wheel 1 with difference in height, the first fibrillation liquid and auxiliary agent of specified wt are added in liquid stream dye machine, and is made
Bath raio in Alkali reduction fibrillation step is 1:10.
Wherein, the first fibrillation liquid includes sodium hydroxide, and the sodium hydroxide is 100% piece alkali, and every liter molten
The quality of sodium hydroxide is 6-8g in liquid, more preferably 7-8g；The auxiliary agent is comprehensive effect refining agent.
Then, the temperature in the liquid stream dye machine is adjusted to the first fibrillation temperature, the first fibrillation temperature is 90~115
Degree Celsius, preferably 95 degrees Celsius.
Then, start the liquid stream dye machine, make the big rubbing surface guide wheel 1 with the first guide wheel rotational speed, it is described to rub greatly
The rotating speed of wiping face guide wheel 1 is 10HZ, and two big rubbing surface guide wheels 1, which are rotated, drives the polyester-nylon composite superfine fibre cloth as belt
The circulating rolling equally in the first fibrillation liquid, now, occurs water between polyester-nylon composite superfine fibre macromolecule and the first fibrillation liquid
Solution reaction, ultimately forms water-soluble substances.
Specifically, in the first fibrillation liquid, the ester linkage hydrolyzing fracture of the macromolecular chain on superfine fibre surface is constantly formed not
With the hydrolysate of the degree of polymerization, meanwhile, the comprehensive effect refining agent is adsorbed on the superfine fibre surface rapidly, reduces fiber table
The tension force in face, secondly, ion exchange occurs for hydroxyl radical negative ion in the anion and the first fibrillation liquid in the comprehensive effect refining agent
Reaction, hydroxide ion shifts and is enriched in superfine fibre surface, is that hydroxide ion has the also attack more easily of more chances
Carbon atom with part positive charge in superfine fibre macromolecule, makes superfine fibre high score quantum splitting, so that promote hydrolysis,
Ultimately form water miscible phthalic acid sodium and ethylene glycol.
With the continuous progress of hydrolysis so that the fiber number (diameter) of superfine fibre attenuates, and monofilament increases, brocade is washed compound
The weight of superfine fibre cloth reduces, and Alkali reduction is incrementally increased.
Simultaneously also along with certain mechanical fibrillation process in Alkali reduction fibrillation step, but mechanical kinetic energy is auxiliary
Reason, the main cause or sodium hydroxide and the hydrolysis of superfine fibre of fibrillation.
After the Alkali reduction fibrillation of the very first time is carried out, polyester-nylon composite superfine fibre fibrillation rate is set to reach first predetermined value,
Stop the Alkali reduction fibrillation step.
But in above process, how controlling the stopping of Alkali reduction fibrillation process and starting mechanical fibrillation process is guarantee
The present invention can realize the maximum difficult point of final result, and the experiment through inventor many times is found with long-term thinking analysis：
In caustic reduction processing, before fibrillation rate reaches 40%, the Stiffness of superfine fibre is not obvious, and when fibrillation rate is more than 40%
Afterwards, the rigidity of superfine fibre is decreased obviously；Therefore the present invention preferably first predetermined value is 38-42%；Further, it is excellent
Elect as when reaching 40%, stop above-mentioned Alkali reduction fibrillation process, now, Alkali reduction is about 14%-15%；It is corresponding, to reach
To above-mentioned fibrillation rate, corresponding Alkali reduction fibrillation process duration is about 55-65min, more preferably 60min.
S2, mechanical fibrillation step：Then, the polyester-nylon composite superfine fibre cloth Jing Guo Alkali reduction fibrillation is stilled remain in into institute
On the big rubbing surface guide wheel 1 for stating liquid stream dye machine.
The first fibrillation liquid is discharged from the liquid stream dye machine, and the second fibrillation liquid is added in the liquid stream dye machine
And auxiliary agent, and the bath raio in mechanical fibrillation step is maintained at 1:120.
Wherein, the component and auxiliary agent of the second fibrillation liquid and the component and auxiliary agent of the first fibrillation liquid are identical,
But the concentration of sodium hydroxide will be far smaller than the naoh concentration in the first fibrillation liquid in wherein described second fibrillation liquid,
The quality of sodium hydroxide is 0.1-0.9g, and use of the auxiliary agent in mechanical fibrillation step in specially every liter the second fibrillation liquid
Amount is less than the consumption in the Alkali reduction fibrillation step.
Because mainly being realized in Alkali reduction fibrillation step by the hydrolysis of sodium hydroxide and superfine fibre
Fibrillation, and mechanical kinetic energy is then relied primarily in mechanical fibrillation step and carries out fibrillation, the second fibrillation liquid and auxiliary agent mainly play auxiliary
Effect.
Then, the temperature in liquid stream dye machine is adjusted to the second fibrillation temperature, the second fibrillation temperature is 100~115
Degree Celsius, due to fibrillation temperature and fibrillation speed holding direct ratio, temperature is higher, and fibrillation effect is better, and temperature is reduced, then fibrillation
Speed is reduced, and therefore, why the second fibrillation temperature setting is slightly over into the first fibrillation temperature, is in order to anti-in no chemistry
On the premise of answering, the speed of acceleration mechanical fibrillation.
Then, described to wash brocade compound super to specify water impact speed to be sprayed at the water of assigned temperature for control water spraying mechanism
Thin fiber cloth and the region of guide wheel contact；The water impact speed is 35HZ, and the water temperature is 90~115 degrees Celsius.
Start the liquid stream dye machine, make the big rubbing surface guide wheel 1 to specify rotational speed, the big rubbing surface guide wheel 1
Rotating speed is 10HZ, and the big rubbing surface guide wheel 1, which is rotated, drives the polyester-nylon composite superfine fibre cloth to be circulated in the second fibrillation liquid
Roll, by the second time and make polyester-nylon composite superfine fibre fibrillation rate reach second predetermined value stop, second time
Preferably 110-130min, more preferably 120min.
In mechanical fibrillation step, because the content of sodium hydroxide in the second fibrillation liquid is with respect to hydroxide in the first fibrillation liquid
The content of sodium greatly reduces, and concentration is substantially reduced, now, between the polyester-nylon composite superfine fibre cloth and sodium hydroxide hardly
Generation hydrolysis, therefore, the diameter of single superfine fibre no longer reduce substantially, Alkali reduction also substantially with the Alkali reduction fibrillation
Alkali reduction in step is consistent, and is at this moment mainly led by the polyester-nylon composite superfine fibre cloth with two big rubbing surfaces
The mechanical energy such as frictional force, the impulsive force of current and the polyester-nylon composite superfine fibre cloth contractility of itself between wheel 1 realize into
One step fibrillation.
However, inventor by test of many times find, if it is existing as shown in Figure 1 include the guide wheel of polyester roller
Upper progress continuation fibrillation, the fabric of final production is unable to reach preferable fibrillation requirement at all, and therefore, inventor is further to institute
Two guide wheels for stating liquid stream dye machine are improved.
Specifically, as shown in Figure 2, two big rubbing surface guide wheels 1 include gap in rotating shaft 11, the rotating shaft 11
It is provided between two pieces of circular baffle plates 12 coaxial with the rotating shaft 11, the baffle plate 12 to be provided with 4-8 blocks and enclose section and is
Several through holes are offered on the web plate 13 of regular polygon, each half tone 13, preferably described web plate 13 is six pieces, and they enclose
The hollow column casing of the synthesis regular hexagon that one coaxial with the rotating shaft 11 and section is, and the area of section of the column casing is small
In the baffle plate 12, the outer wall of the column casing and two baffle plates 12 are together to form a stopper slot, described to wash during fibrillation
Brocade composite superfine fibre cloth is stuck in the stopper slot.
In the detailed process of mechanical fibrillation, the polyester-nylon composite superfine fibre cloth is fitted on the surface of the column casing,
Due to thering are 6 drift angles to withstand on the polyester-nylon composite superfine fibre cloth on the now column casing, and the surface of six blocks of web plates 13 with
The polyester-nylon composite superfine fibre cloth is there is also contact, and therefore, their contact area is far longer than leading for existing polyester roller
The contact area of wheel and the polyester-nylon composite superfine fibre cloth, so the guide wheel 1 after improving is to polyester-nylon composite superfine fibre charity
Plus the relatively existing guide wheel of frictional force also greatly increase, so as to add the power of polyester-nylon composite superfine fibre cloth fibrillation, make
Obtain polyester-nylon composite superfine fibre cloth and can continue to fibrillation.
Simultaneously as when current spray to polyester-nylon composite superfine fibre cloth, one is applied to the polyester-nylon composite superfine fibre cloth
Fixed impulsive force, on the one hand further increases the frictional force between the guide wheel and polyester-nylon composite superfine fibre cloth contact surface, increases
The power of fibrillation is added；On the other hand, water impact also cause polyester-nylon composite superfine fibre cloth itself occur vibration, deformation and
It is flexible, so as to further increase the power of polyester-nylon composite superfine fibre cloth fibrillation, also cause polyester-nylon composite superfine fibre cloth
Wind resilience increase；Furthermore, due to being provided with some through holes on the web plate 13, therefore under the impact of current, wash brocade multiple
Closing the different piece of superfine fibre cloth can respectively be deformed and be absorbed in the through hole, many places by reference of different through holes
The winding resilience for also further increasing polyester-nylon composite superfine fibre cloth occurs while deformation.
By mechanical fibrillation step, can on the basis of first time fibrillation fibrillation 30%-40% again so that final production
The fibrillation rate of product is that the second predetermined value reaches 70%-80%, meets the fibrillation requirement of final fabric.
Further, after using mechanical fibrillation, the further hydrolysis of single superfine fibre can be effectively prevented, so as to keep away
Exempt from the diameter reduction of single superfine fibre to the obvious undesirable situation of fibrous fracture intensity, after this method, finally
The Alkali reduction of fabric maintains 14%-15%, and caustic reduction processing production is far smaller than used alone and meets the requirement of fibrillation rate
Alkali reduction (about 20%) corresponding to fabric, therefore the thickness of final fabric also will with respect to the fabric that caustic reduction processing is used alone
Thickness, it is achieved thereby that the active balance of above-mentioned multi-effect.
The present invention still has numerous embodiments, all technical sides formed by all use equivalents or equivalent transformation
Case, is within the scope of the present invention.
Claims (8)
1. a kind of step fiber opening method of polyester-nylon composite superfine fibre two, it is characterised in that：Comprise the following steps：
S1, Alkali reduction fibrillation step：On the two big rubbing surface guide wheel that polyester-nylon composite superfine fibre cloth is sleeved on to liquid stream dye machine,
In the first fibrillation liquid and auxiliary agent, with the first fibrillation temperature, water slug tests and guide wheel rotating speed are specified, by the fibrillation of the very first time
The fibrillation rate of polyester-nylon composite superfine fibre cloth is set to reach first predetermined value；
S2, mechanical fibrillation step：Polyester-nylon composite superfine fibre cloth Jing Guo Alkali reduction fibrillation is contaminated to the big rubbing surface of machine in liquid stream
On guide wheel, in the second fibrillation liquid and auxiliary agent, with the second fibrillation temperature, water impact speed, water temperature and guide wheel rotating speed are specified, is made
Polyester-nylon composite superfine fibre cloth fibrillation rate after the mechanical fibrillation of the second time reaches second predetermined value；
Two big rubbing surface guide wheels（1）With difference in height, and they include rotating shaft（11）, the rotating shaft（11）Upper gap
It is provided with two pieces and the rotating shaft（11）Coaxial baffle plate（12）, the baffle plate（12）Between be provided with 4-8 block web plates（13）Enclose
The section of synthesis is the column casing of regular polygon, the column casing and the baffle plate（12）Enclose stopper slot；
The very first time is 55-65min, and the first predetermined value is 40%；The first fibrillation liquid includes sodium hydroxide, its
The concentration of middle sodium hydroxide is 6-8g/L；The component of the second fibrillation liquid is same with the first fibrillation liquid phase, wherein hydroxide
The concentration of sodium is 0 .1-0 .9g/L.
2. the step fiber opening method of a kind of polyester-nylon composite superfine fibre two according to claim 1, it is characterised in that：The auxiliary agent
It is the consumption that consumption in comprehensive effect refining agent, and Alkali reduction fibrillation step is more than in mechanical fibrillation step.
3. the step fiber opening method of a kind of polyester-nylon composite superfine fibre two according to claim 2, it is characterised in that：S1, alkali subtracts
It is 1 to measure the bath raio in fibrillation step:10.
4. the step fiber opening method of a kind of polyester-nylon composite superfine fibre two according to claim 3, it is characterised in that：Described first
Fibrillation temperature is 90 ~ 115 degrees Celsius；The water slug tests are 0 .15-0 .25 MPa；The guide wheel rotating speed is 10Hz.
5. the step fiber opening method of a kind of polyester-nylon composite superfine fibre two according to claim 4, it is characterised in that：Described first
Fibrillation temperature is 90 ~ 95 degrees Celsius, and the specified water slug tests are 0 .2MPa.
6. the step fiber opening method of a kind of polyester-nylon composite superfine fibre two according to claim 1, it is characterised in that：The current
Impact velocity is 35Hz, and the water temperature is 90 ~ 115 degrees Celsius, and the second fibrillation temperature is 100 ~ 115 degrees Celsius.
7. the step fiber opening method of a kind of polyester-nylon composite superfine fibre two according to claim 6, it is characterised in that：Described second
Time is 110-130min.
8. the step fiber opening method of a kind of polyester-nylon composite superfine fibre two according to claim 7, it is characterised in that：Described second
Predetermined value is 70%-80%.
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| CN111088552B (en) * | 2019-12-30 | 2022-03-25 | 常熟涤纶有限公司 | Cationic dyeable polyester fiber and preparation method thereof |
| CN111074363B (en) * | 2019-12-30 | 2022-04-15 | 常熟涤纶有限公司 | Superfine polyester fluorescent fiber with high adsorption function and preparation method thereof |
| CN112900071A (en) * | 2021-01-19 | 2021-06-04 | 无锡腾华电缆材料科技有限公司 | Alkali deweighting treatment process for polyester filament yarn and equipment for alkali deweighting treatment process for polyester filament yarn |
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