CN107641868A - A kind of preparation method for synthetic fibre polyimides chopped fiber high-count yarn of being lost - Google Patents
A kind of preparation method for synthetic fibre polyimides chopped fiber high-count yarn of being lost Download PDFInfo
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- CN107641868A CN107641868A CN201711101834.1A CN201711101834A CN107641868A CN 107641868 A CN107641868 A CN 107641868A CN 201711101834 A CN201711101834 A CN 201711101834A CN 107641868 A CN107641868 A CN 107641868A
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Abstract
The invention belongs to textile material technical field, discloses a kind of preparation method for synthetic fibre polyimides chopped fiber high-count yarn of being lost, it comprises the following steps：（1）Health is handled, and antistatic pre-add wet process is carried out to synthetic fibre polyimides chopped fiber of being lost before spinning；（2）Cotton cleaning process, cotton cleaning process use the principle of " few strike, few shredding "；（3）Carding step,（4）Mixing in doubling step,（5）Roving Frames,（6）Spinning process,（7）Winding procedure；The spinnability of fiber is ensured to improve by using antistatic additive；Test of many times adjusts cover plate and cylinder gauge, ensures cotton carding card sliver quality, reduces the generation of short flannel and false cotton knot；It is 6.5 by adjusting winding circle remote, keeping internal layer rove, fistulae and winding do not cause closely very much to extrude；To sum up, there is obvious technique effect by the synthetic fibre polyimides chopped fiber high-count yarn of being lost obtained by this technology, people's living standard and quality can be effectively improved.
Description
Technical field
The invention belongs to textile material technical field, and in particular to a kind of synthetic fibre polyimides chopped fiber high-count yarn of being lost
Preparation method.
Background technology
Currently, with the progress of science and technology, growth in the living standard, people are to the demand of dress and requirement also to higher layer
Secondary upper development, yarn is had more superior performance is the place that existing industry technical staff urgently breaks through；It is lost synthetic fibre
Polyimides chopped fiber is a kind of emerging fiber in recent years, and it has extremely low thermal conductivity factor and splendid high-temperature stability
And low-temperature stability, while also there is anti-flammability, insulating properties and splendid chemical stability, still, synthetic fibre polyimides of being lost is short
Fiber has certain physical characteristic, and such a fiber hardens, and strength is high, and cohesive force is poor, is also easy to produce electrostatic, and spinnability is poor, closely
There is within several years weaving producer to attempt be lost the weaving of synthetic fibre polyimides chopped fiber always, end in failure, but itself has
Some various functions advantages are for textile industry again with greatly temptation.
As the technical staff of the industry, how by technological improvement, improved in production technology, completed to synthetic fibre of being lost
The weaving of polyimides chopped fiber is existing industry technical staff technical problem urgently to be resolved hurrily.
The content of the invention
To overcome the shortcomings of the existing technology, the invention provides a kind of preparation side for synthetic fibre polyimides chopped fiber high-count yarn of being lost
Method, by the improvement of the technological process of production, the weaving to synthetic fibre polyimides chopped fiber high-count yarn of being lost is completed, make synthetic fibre polyamides Asia of being lost
Unique physical property is embodied possessed by amine chopped fiber.
To realize above-mentioned technical purpose, the present invention uses following scheme：
(1) health is handled
Antistatic pre-add wet process is carried out to synthetic fibre polyimides chopped fiber of being lost before spinning；It is required that antistatic additive is prepared in advance
Solution, its reclaimed water：The ratio of antistatic additive is 4:1, made a distinction with group, every group of humidification 200kg is lost synthetic fibre polyimides short fibre
Dimension, 5kg antistatic agent solution is equably sprayed onto to being lost in synthetic fibre polyimides chopped fiber of having divided, after sprinkling, manually turned over
Fiber is mixed, until antistatic agent solution and fiber are mixed evenly, then every group of fiber is packed into sealing respectively, in confined space
It is stand-by after placing 36 hours；
(2) cotton cleaning process
The degree of opening and fiber properties for synthetic fibre polyimides chopped fiber of being lost are fully taken into account, cotton cleaning process uses " to be hit, less less
The principle of shredding ", reduce technological process, opener is transitted directly to by griping cotton machine, arrived again after the completion of opener process singles' hand into
Volume machine；The purpose of above step is to reduce the striking point of fiber, avoids the damage of fiber；
The cotton cleaning process technological parameter of table 1
(3) carding step
Cylinder flat gauge is turned down, specific data such as subordinate list 2, be 25 English silks to cotton gauge；Cylinder speed is reduced to
320r/min, the speed-ratio regulation with licker-in are 2.4:1, cover plate speed exchanges gear wheel and is changed to 90mm/min, strengthens combing effect, excellent
Securing cover plate pin cloth density is selected gradually to be increased to rear upper securing cover plate density by rear lower securing cover plate for 450 pins per square inch
Greatly, securing cover plate number is three after preceding four, and mote knife removes；
The carding step technological parameter of table 2
(4) mixing in doubling step
Mixing in doubling step is mainly by drawing-off, using Wu Site sliver everevens, improve Fiber Straightness with it is parallel
Degree so that strip is uniform, and the arrange parameter of drawing process is as follows：
The mixing in doubling step technological parameter of table 3
| Drafting | Quantitative g/5m | Number of doubling | Drafting multiple | Roller gauge mm | Speed m/min |
| Head is simultaneously | 13.0 | 7 | 6.50 | 13*9*19 | 180 |
| End is simultaneously | 11.5 | 8 | 9.45 | 13*9*19 | 180 |
(5) Roving Frames
Still further to improve the extended parallelization of fiber, separating degree in Process configuration, the bar for improving sliver is dry uniform
Spend for principle, select 11.5 drafting multiple and 6.5mm nip gauge block；The axial winding density of selection of small sets same layer
Sliver spacing 6.5mm；For roving twist under guarantee the spun yarn not principle of harmful drafting, the twist factor for increasing roving twist is 65；
The Roving Frames technological parameter of table 4
(6) spinning process
Spinning process carries out SEILE textile spinning, and spinning frame back area draft gauge is amplified to 65mm, and jaw data are 2.5；
The spinning process technological parameter of table 5
(7) winding procedure
Using fully-automatic spooling machine, USTER three generations electricity is clear, and the yarn body simulated clearly along electricity carries out the clear ginseng of reasonable set electricity
Number, keeps the bright and clean of yarn path, and the appropriate groove drum speed that reduces reduces single thread force to 900 meters/min；
Table 6 is from network procedure technology parameter
Beneficial effects of the present invention are：The present invention had the advantages that in resulting product by process above,
Possessed characteristic is described below：The present invention is weaved by above method, resulting synthetic fibre polyimides chopped fiber height of being lost
Count yarn has advantages below：
1st, subversiveness warming effect：With extremely low thermal conductivity factor, while warming fabric can be made more frivolous, quality mitigates
40% or so；
2nd, splendid high-temperature stability and low-temperature stability：Synthetic fibre polyimides chopped fiber high-count yarn of being lost has permanent heat
Stability, at 300 DEG C of operating temperature, there is good intensity, endurance, synthetic fibre polyimides chopped fiber of being lost also is resistant to extremely low
Temperature, the not brittle failure in -269 DEG C of liquid nitrogen；
3rd, anti-flammability：Synthetic fibre polyimides chopped fiber of being lost is made up of aromatic main chain unit；Limited oxygen index is more than 38%,
Belong to non-combustible matter；So synthetic fibre polyimides chopped fiber high-count yarn of being lost has the characteristic do not melted, and from fiery self-extinguishment, smoke rate pole
It is low, it is nontoxic, and synthetic fibre polyimides chopped fiber high-count yarn of being lost is free of halogen, belongs to green yarn；
4th, electrical property：Remain to keep good insulating properties under the conditions of high temperature, high pressure, high humidity, frequency conversion etc.；
5th, splendid chemical stability：By significantly chemical resistance, synthetic fibre polyimides chopped fiber high-count yarn of being lost can be grown
Phase uses under circumstances, and it is resistant to the effect of most of organic solvents, such as：Acid, alkali, hydro carbons, ketone, alcohol etc.；
6th, splendid strainability：The synthetic fibre polyimides chopped fiber high-count yarn of being lost of multiple section shape, and nanometer are high
Tech fiber, is used alone or is used in mixed way and add filter table area and make it have excellent strainability；
7th, natural lasting antibacterial action：Synthetic fibre polyimides chopped fiber high-count yarn be lost to staphylococcus aureus, large intestine
The antibacterial effects such as bacillus, Candida albicans are better than natural bamboo fibres；
8th, far infrared health care performance：Wearer's blood circulation can be promoted, strengthen tissue metabolism, increase regeneration
Ability, the immunocompetence of human body is improved, so as to play a part of health care；
Embodiment
The present invention is more specifically explained below by specific embodiment, can clearly obtain using per step
The beneficial effect that is reached of technical approach, below by way of being lost, synthetic fibre polyimides chopped fiber high-count yarn actual woven example is carried out
Explanation：
Embodiment：
(1) health is handled
Synthetic fibre polyimides chopped fiber of being lost is hardened, and strength is high, and cohesive force is poor, is also easy to produce electrostatic, and spinnability is poor, therefore,
Antistatic pre-add wet process must be carried out to synthetic fibre polyimides chopped fiber of being lost, and use packet transaction before spinning；It is required that match somebody with somebody in advance
Good antistatic agent solution, its reclaimed water：The ratio of antistatic additive is 4:1, made a distinction with group, every group of humidification 200kg synthetic fibre of being lost gathers
Acid imide chopped fiber, 5kg antistatic agent solution is equably sprayed onto to being lost in synthetic fibre polyimides chopped fiber of having divided, sprayed
Afterwards, fiber is manually turned, until antistatic agent solution and fiber are mixed evenly, then every group of fiber is packed into sealing respectively,
It is stand-by after being placed 36 hours in confined space；
(2) cotton cleaning process
The degree of opening and fiber properties for synthetic fibre polyimides chopped fiber of being lost are fully taken into account, cotton cleaning process uses " to be hit, less less
The principle of shredding ", reduce technological process, opener is transitted directly to by griping cotton machine, arrived again after the completion of opener process singles' hand into
Volume machine；The purpose of above step is to reduce the striking point of fiber, avoids the damage of fiber；
The cotton cleaning process technological parameter of table 1
(3) carding step
Cylinder flat gauge is turned down, specific data such as subordinate list 2, had both accomplished preferable carding effect, and had been unlikely to short flannel again
Deteriorate, implement the principle of " moderately comb, tie miscellaneous short flannel take into account ", be 25 English silks to cotton gauge；Cylinder speed is reduced to 320r/
Min, the speed-ratio regulation with licker-in are 2.4:1, cover plate speed exchanges gear wheel and is changed to 90mm/min, strengthens combing effect, reduces road
Husband's speed improves cylinder doffer's rate of transform, reduces fiber and fills, rubs repeatedly, increase combs transfer, preferably securing cover plate pin cloth
Density is gradually increased for 450 pins per square inch by rear lower securing cover plate to rear upper securing cover plate density, and securing cover plate number is
Three after preceding four, mote knife removes；
The carding step technological parameter of table 2
(4) mixing in doubling step
Mixing in doubling step is mainly by drawing-off, using Wu Site sliver everevens, improve Fiber Straightness with it is parallel
Degree so that strip is uniform, and the arrange parameter of drawing process is as follows：
The mixing in doubling step technological parameter of table 3
(5) Roving Frames
Still further to improve the extended parallelization of fiber, separating degree in Process configuration, the bar for improving sliver is dry uniform
Spend for principle, select 11.5 drafting multiple and 6.5mm nip gauge block, avoid " pimple bar " from occurring；The axle of selection of small
To rolling density setting with layer sliver spacing 6.5mm, avoid causing to be adhered when spinning process is unwind to break end ensureing that rove does not leak
Pipe, also to wind close；For roving twist under guarantee the spun yarn not principle of harmful drafting, the twist factor for increasing roving twist is 65；
The Roving Frames technological parameter of table 4
(6) spinning process
Spinning process carries out SEILE textile spinning, due to roving twist grasp bigger than normal, to enable spun yarn drawing-off to open, spinning frame
Back area draft gauge is amplified to 65mm, and jaw is using the specific data of the principle for ensureing not harmful drafting as 2.5, the selection weight of wire loop
Suitably, light then occurrence law filoplume, overweight then filoplume is bigger than normal, or even occurs strangling trace, for effectively control air ring, wire loop selection
Lay particular stress on；
The spinning process technological parameter of table 5
| Wire loop | Jaw | Total draft multiple | Back zone drafting multiple | Ratch | Front roller speed r/min | Twist factor |
| OSS 18/0 | 2.5 | 67.8 | 1.08 | 43*64 | 210 | 350 |
(7) winding procedure
Using fully-automatic spooling machine, USTER three generations electricity is clear, and the yarn body simulated clearly along electricity carries out the clear ginseng of reasonable set electricity
Number, keeps the bright and clean of yarn path, and the appropriate groove drum speed that reduces reduces single thread force to 900 meters/min.
Table 6 is from network procedure technology parameter
By trying to spin test and above actual argument, the high branch of synthetic fibre polyimides chopped fiber of being lost proposed by the invention repeatedly
The technological difficulties that the Weaving method of yarn is captured summarize description as follows：
(1) by using antistatic additive, and using unique concentration proportioning and health processing time and Curing Method
To improve the spinnability for ensuring fiber, reduction fiber rigidity itself is big, and electrostatic is not easy the problem spread, ensures that spinning can be normal
Carry out；
(2) test of many times adjustment cover plate and cylinder gauge, finally determine that cylinder speed is reduced to 320r/min, with licker-in
Speed-ratio regulation is 2.4:1, ensure cotton carding card sliver quality, reduce the generation of short flannel and false cotton knot；
(3) synthetic fibre polyimides chopped fiber electrostatic of being lost is more serious, sticky-off phenomenon occurs in spinning process rove, test of many times,
It is 6.5 by adjusting winding circle remote, then drafting multiple is adjusted to 11.5, keeping internal layer rove, fistulae and winding is not made closely very much
Into extruding；
(4) synthetic fibre polyimides short fiber yarn twist factor is lost 350 or so；
(5) adjusted by test of many times, can not be too high from network speed, 1000r/min is arrived in speed control, effective control speed
Degree, efficiency is improved, reduce equipment alarm, reduce mechanical alarm, tension adjustment 4cN.
To sum up, the present invention is a kind of preferably production and preparation technology, passes through the synthetic fibre polyimides of being lost obtained by this technology
Chopped fiber high-count yarn has obvious technique effect, can be effectively improved people's living standard and quality.
Claims (2)
- A kind of 1. preparation method for synthetic fibre polyimides chopped fiber high-count yarn of being lost, it is characterised in that：It uses following scheme：（1）Health is handledAntistatic pre-add wet process is carried out to synthetic fibre polyimides chopped fiber of being lost before spinning；Antistatic agent solution is prepared in advance, its Reclaimed water：The ratio of antistatic additive is 4:1, made a distinction with group, every group of humidification 200kg is lost synthetic fibre polyimides chopped fiber, by 5kg Antistatic agent solution be equably sprayed onto being lost in synthetic fibre polyimides chopped fiber of having divided, after sprinkling, manually turn fiber, directly It is mixed evenly to antistatic agent solution and fiber, then every group of fiber is packed into sealing respectively, it is small that 36 is placed in confined space When after it is stand-by；（2）Cotton cleaning processCotton cleaning process uses the principle of " few strike, few shredding ", reduces technological process, opener is transitted directly to by griping cotton machine, Single beater scutcher is arrived again after the completion of opener process；The cotton cleaning process technological parameter of table 1
Kind Meter Chong (g/m) Fixed length (m) Lap roller speed (r/min) It is lost synthetic fibre polyimides chopped fiber 310 30 10 （3）Carding stepCylinder flat gauge is turned down, specific data such as subordinate list 2, be 25 English silks to cotton gauge；Cylinder speed is reduced to 320r/ Min, the speed-ratio regulation with licker-in are 2.4:1, cover plate speed exchanges gear wheel and is changed to 90mm/min, preferably securing cover plate pin cloth density For 450 pins per square inch, gradually increased to rear upper securing cover plate density by rear lower securing cover plate, securing cover plate number is preceding four Afterwards three, mote knife removes；The carding step technological parameter of table 2Kind Licker-in speed r/min Cylinder speed r/min Cover plate speed mm/min Doffer speed r/min Cylinder and lid Plate gauge Weight of card sliver g/5m It is lost synthetic fibre polyimides Chopped fiber 790 320 71.0 28 10 9 9 10 14.0 （4）Mixing in doubling stepMixing in doubling step is as follows using Wu Site sliver everevens, the arrange parameter of drawing process mainly by drawing-off：The mixing in doubling step technological parameter of table 3Drafting Quantitative g/5m Number of doubling Drafting multiple Roller gauge mm Speed m/min Head is simultaneously 13.0 7 6.50 13*9*19 180 End is simultaneously 11.5 8 9.45 13*9*19 180 （5）Roving FramesThe drafting multiple of selection 11.5 and 6.5mm nip gauge block in Process configuration；The axial winding density of selection of small Setting is the same as layer sliver spacing 6.5mm；Roving twist increases the twist factor of roving twist under guarantee the spun yarn not principle of harmful drafting For 65；The Roving Frames technological parameter of table 4It is quantitative（g/10m） Jaw Drafting multiple Ratch Front roller speed r/min Twist factor 2.0 It is 6.5 yellow 11.5 11*27*41 200 65 （6）Spinning processSpinning process carries out SEILE textile spinning, and spinning frame back area draft gauge is amplified to 65mm, and jaw data are 2.5；The spinning process technological parameter of table 5Wire loop Jaw Total draft multiple Back zone drafting multiple Ratch Front roller speed r/min Twist factor OSS 18/0 2.5 67.8 1.08 43*64 210 350 （7）Winding procedureUsing fully-automatic spooling machine, USTER three generations electricity is clear, and the yarn body simulated clearly along electricity carries out reasonable set electronic yarn clearer parameter, protects The bright and clean of yarn path is held, the appropriate groove drum speed that reduces reduces single thread force to 900 meters/min. - 2. table 6 is from network procedure technology parameter。
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| CN109722778A (en) * | 2018-12-29 | 2019-05-07 | 江苏工程职业技术学院 | A kind of production method of super warming low-temperature resistance plush fabric |
| CN113463238A (en) * | 2021-07-17 | 2021-10-01 | 际华三五四二纺织有限公司 | Manufacturing process method for producing flame-retardant antibacterial yarn |
| CN113604921A (en) * | 2021-07-13 | 2021-11-05 | 开滦（集团）有限责任公司 | Polyformaldehyde staple fiber yarn and manufacturing method thereof |
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