CN102242410B - Method for melting spinning and flexible blowing of fibers and product thereof - Google Patents
Method for melting spinning and flexible blowing of fibers and product thereof Download PDFInfo
- Publication number
- CN102242410B CN102242410B CN 201110191778 CN201110191778A CN102242410B CN 102242410 B CN102242410 B CN 102242410B CN 201110191778 CN201110191778 CN 201110191778 CN 201110191778 A CN201110191778 A CN 201110191778A CN 102242410 B CN102242410 B CN 102242410B
- Authority
- CN
- China
- Prior art keywords
- fiber
- account
- blowing
- wind speed
- tracks
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention relates to a method for melting spinning and flexible blowing of fibers and a product thereof, in particular to a melting spinning method of random differential air cooling in spinning forming of clothing fibers and a product thereof. In the method provided by the invention, in the process of the melting spinning, the air speed of the air cooling is controlled by pulse signals to change according to a law that the air speed satisfies an equation V(t)=S+ sin omega t. The invention also provides a fiber, wherein the crimp elasticity recovery rate of the fiber is 85-98%; after being stretched, the fiber is three-dimensionally crimped; under the condition that the total drawing ratio is 1.4-5.5, the final fiber crimp number is 7-15/25mm; and the distribution number of the fiber crimp number in a range of 11-19/25mm is more than 50% of the total distribution ratio of the crimp number. In the invention, the method of air cooling differentiation is adopted at a key area of the melting spinning and cooling forming to ensure that the problem that the forming and the winding of polyamide precursor fibers can be normally carried out while the difference of internal crystal orientation of the fibers as well as the profile degree and the differentiation of the morphological structure of the polyamide fibers can be guaranteed is solved, therefore, the purpose of synthetic fiber simulation is achieved.
Description
Technical field
The present invention relates to method of a kind of fibers melt spinning flexible blowing and products thereof, especially relate to a kind of at random differential fibers melt spinning flexible blowing method and products thereof of cooling quench in the fibre spinning moulding of taking.
Background technology
Imitative naturalization of synthetic fiber is the important means that improve its wearing comfort.Imitative naturalization comprises the regulation and control of MOLECULE DESIGN and physical and mechanical property, morphosis etc.The former research process is complicated, and the suitability for industrialized production cycle is long, and investment is large.Changing physical mechanics and the morphosis of synthetic fiber, if press the normal distribution design of natural fabric, is that a kind of operation of regulating aborning is few, and technique is simple, the effective way that cost is low.Application number 200710120117.3 is mentioned among a kind of preparation method of the fibre in differentiation with wool-like effect and to be carried out polyester fiber and how different terylene thread network combined and obtain hiding in the hiding the fibre in differentiation of a large amount of internal stress.Application number be mention in 201010174972.4 with pre-oriented yarn and high boiling shrinkage silk carry out network combined after so that obtain a kind of fibre in differentiation close to wool.Mention in the patent No. 200520001791.6 in the drawing of fiber process using and have the drawing cam of convex-concave shape and make the forward degree of fiber different with degree of crystallinity, prepare fibre in differentiation.And the present invention is the differential sequencing control of adopting quench air velocity in the fiber preparation process, the difference of the degree of crystallinity in the single fiber, the degree of orientation, internal stress or degree of hollowness and prepare differential emulation chemical fibre dimension.
Summary of the invention
The purpose of this invention is to provide method of a kind of fibers melt spinning flexible blowing and products thereof, the at random differential control of quench air velocity under the melt extrusion spinnerets is namely regulated the fiber that wind speed is prepared differential condensed state structure and morphosis by pulse pump.Because quench air velocity controls according to certain procedures, cause that the internal stress of fiber is inhomogeneous and also present certain rule and distribute and cause that fiber is differential to be presented certain rule and distribute.This distribution can be complementary with the differential distribution of prepared target natural fabric.The present invention is the key area at the melt spinning cooling forming, adopt air-cooled differential method, solved and to have guaranteed that precursor is shaped, reels and normally carry out, can guarantee again the difference of the inherent crystalline orientation of fiber, the structure special-shaped degree of fibre morphology and degree of hollowness differential, thus reach the purpose of synthetic fiber emulation.
Technical scheme of the present invention is:
The method of a kind of fibers melt spinning flexible blowing of the present invention, in the melt spinning process, the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=S+Asin ω t, wherein V (t) is wind speed, and unit can be m/s; S is fixed constant, and unit can be m/s; A is the peak swing of pulse signal fluctuation, and unit can be m/s; ω is the pulse signal angular frequency, and unit can be rad/s; T is the blowing burst length, and unit can be s.
As preferred technical scheme:
The method of aforesaid a kind of fibers melt spinning flexible blowing, the melt feed of described melt spinning are PET, PA, PP, PE, PLA, PBT or PDT.
The method of aforesaid a kind of fibers melt spinning flexible blowing, described fixed constant S mainly is the fixed constant of determining according to the used melt feed kind of spinning, and the corresponding S of PET, PA, PP, PE, PLA, PBT and PDT is followed successively by respectively 0.8～1.1,0.6～1.2,0.9～1.3,0.7～1.3,0.8～1.4,0.8～1.1 and 0.8～1.1.The blowing zone of other conditions in the spinning process such as cooling quench temperature, cooling quench and winding speed etc. also can produce certain impact to the value of fixed constant S, cooling quench temperature particularly, when described fixed constant S is 21 ℃ in the blowing temperature, usually PET, PA, PP, PE, PLA, PBT and the corresponding S of PDT are followed successively by respectively 0.95,0.9,1.1,1.0,1.1,0.95,0.95; When the every rising of cooling quench temperature or when reducing by 1 ℃, the fixed constant S of PET, PA, PP, PE, PLA, PBT and PDT then increases accordingly or reduces 0.03,0.06,0.04,0.06,0.06,0.03 and 0.03.Described fixed constant S also is subject to the blowing zone of cooling quench and the impact of winding speed, be specially S and become greatly along with the rising of the increase of blowing zone length and winding speed, otherwise S then diminishes.
The method of aforesaid a kind of fibers melt spinning flexible blowing, the peak swing A of described pulse signal determines constant for the kind according to melt feed, and the corresponding A of PET, PA, PP, PE, PLA, PBT and PDT is followed successively by respectively 1.0,1.0,0.95,0.95,1.1,1.0 and 1.0.
The method of aforesaid a kind of fibers melt spinning flexible blowing, angular frequency is 60～600 according to the curling number of fiber product in the described pulse signal fluctuation equation; When the fiber roll number of tracks is 11-16/25mm, account for crispation number total distributed ratio 40%～55% the time, ω is 60～400; As 15～19/25mm of crispation number, account for crispation number total distributed ratio 50～80% the time, ω is 150～600.
The method of aforesaid a kind of fibers melt spinning flexible blowing, described cooling quench is ring blowing, lateral blowing or radial outflow; The blowing zone of described cooling quench is spinnerets below 0～1100mm.
The present invention also provides a kind of prepared fiber of method of fibers melt spinning flexible blowing, the curling elastic recovery rate of described fiber is 85～98%, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, be in 3.5～5.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 7～35/25mm, and wherein the distribution number of fiber roll number of tracks in 11～19/25mm scope accounts for more than 50% of crispation number total distributed ratio.
Aforesaid a kind of fiber is characterized in that, the filament number of described fiber is 2.0～4.5dtex.
Aforesaid a kind of fiber, described fibre section are circular, hollow or odd-shaped cross section, and described odd-shaped cross section is flat, cross, petal, trilobal, triangle or star.
Aforesaid a kind of fiber, the degree of profile of the fiber of described odd-shaped cross section are 10～70%.
Aforesaid a kind of fiber, the degree of hollowness of the fiber of described hollow section are 6～32%; The fiber of described hollow section is many central hole structures of single fiber single hole concentric structure or eccentric structure or single fiber.
Beneficial effect
1, changes the differential obvious differential synthetic fiber of simulated effect that prepare of spinning cooling forming regional environment by flexible blowing, and the differential of flexible blowing miniclimate controlled by computer program, can adopt different computer programs according to the characteristics of the natural chemical fibre dimension of difference.
2, the emulation of the synthetic fiber of the present invention's preparation need not to adjust existing production process, and technique is simple, and operating cost is low.
The specific embodiment
Below in conjunction with the specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used for explanation the present invention and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Embodiment 1
In PET melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.1+sin60t, wherein V (t) is wind speed, and unit is m/s; T is the blowing burst length, and unit is s (together lower).26 ℃ of cooling quench temperature, the blowing zone is 0～500mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1500m/min, be in 3.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 8～25/25mm, wherein the distribution number of fiber roll number of tracks in 11～16/25mm scope accounts for 40% of crispation number total distributed ratio, account for 30% less than 11/25mm, greater than 16/25mm account for 30%, 11～19/25mm account for 53%, fibre number is 3.1dtex.The curling elastic recovery rate of described fiber is 85～92%.
Embodiment 2
In PET melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=0.8+sin200t.16 ℃ of cooling quench temperature, the blowing zone is 0～600mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1400m/min, be in 3.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 8～25/25mm, wherein the distribution number of fiber roll number of tracks in 11～16/25mm scope accounts for 50% of crispation number total distributed ratio, account for 25% less than 11/25mm, greater than 16/25mm account for 25%, 11～19/25mm account for 60%, fibre number is 3.1dtex.The curling elastic recovery rate of described fiber is 85～92%.
Embodiment 3
In PP melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.1+0.95sin400t.21 ℃ of cooling quench temperature, the blowing zone is 0～800mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 2000m/min, be in 4.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 9～30/25mm, wherein the distribution number of fiber roll number of tracks in 11～16/25mm scope accounts for 60% of crispation number total distributed ratio, account for 5% less than 11/25mm, greater than 16/25mm account for 35%, 11～19/25mm account for 75%, fibre number is 2.8dtex.The curling elastic recovery rate of described fiber is 85～98%.
Embodiment 4
In PP melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.3+0.95sin400t.26 ℃ of cooling quench temperature, the blowing zone is 0～800mm, and behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 2300m/min, be in 4.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 9～30/25mm, and wherein the distribution number of fiber roll number of tracks in 11～16/25mm scope accounts for 60% of crispation number total distributed ratio, account for 5% less than 11/25mm, greater than 16/25mm account for 35%, 11～19/25mm account for 75%, fibre number is 2.8dtex.The curling elastic recovery rate of described fiber is 86～97%.
Embodiment 5
In PP melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=0.95+0.95sin400t.16 ℃ of cooling quench temperature, the blowing zone is 0～900mm, and behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 2300m/min, be in 4.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 1～30/25mm, and wherein the distribution number of fiber roll number of tracks in 11～16/25mm scope accounts for 60% of crispation number total distributed ratio, account for 5% less than 11/25mm, greater than 16/25mm account for 36%, 11～19/25mm account for 74%, fibre number is 2.8dtex.The curling elastic recovery rate of described fiber is 85～96%.
Embodiment 6
In PBT melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=0.95+sin150t.21 ℃ of cooling quench temperature, the blowing zone is 0～600mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1700m/min, be in 3.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 7～28/25mm, wherein the distribution number of fiber roll number of tracks in 11～16/25mm scope accounts for 55% of crispation number total distributed ratio, account for 25% less than 11/25mm, greater than 16/25mm account for 20%, 11～19/25mm account for 66%, fibre number is 3.2dtex.The curling elastic recovery rate of described fiber is 85～92%.
Embodiment 7
In PBT melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.07+sin300t.25 ℃ of cooling quench temperature, the blowing zone is 0～500mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1600m/min, be in 3.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 7～28/25mm, wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 65% of crispation number total distributed ratio, account for 15% less than 15/25mm, greater than 19/25mm account for 20%, 11～19/25mm account for 75%, fibre number is 3.2dtex.The curling elastic recovery rate of described fiber is 85～92%.
Embodiment 8
In PBT melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.1+sin150t.26 ℃ of cooling quench temperature, the blowing zone is 0～1000mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1600m/min, be in 3.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 7～28/25mm, wherein the distribution number of fiber roll number of tracks in 11～16/25mm scope accounts for 55% of crispation number total distributed ratio, account for 25% less than 11/25mm, greater than 16/25mm account for 20%, 11～19/25mm account for 66%, fibre number is 3.2dtex.The curling elastic recovery rate of described fiber is 85～92%.
Embodiment 9
In PBT melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=0.8+1.0sin300t.16 ℃ of cooling quench temperature, the blowing zone is 0～500mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1500m/min, be in 3.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 7～28/25mm, wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 66% of crispation number total distributed ratio, account for 16% less than 15/25mm, greater than 19/25mm account for 19%, 11～19/25mm account for 75%, fibre number is 3.2dtex.The curling elastic recovery rate of described fiber is 85～90%.
Embodiment 10
In PA melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=0.9+sin600t.21 ℃ of cooling quench temperature, the blowing zone is 0～900mm, and behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1700m/min, be in 5.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 9～35/25mm, and wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 80% of crispation number total distributed ratio, account for 5% less than 15/25mm, greater than 19/25mm account for 15%, 11～19/25mm account for 86%, fibre number is 2.4dtex.The curling elastic recovery rate of described fiber is 90～97%.
Embodiment 11
In PA melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.2+sin600t.26 ℃ of cooling quench temperature, the blowing zone is 0～900mm, and behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1900m/min, be in 5.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 9～35/25mm, and wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 80% of crispation number total distributed ratio, account for 4% less than 15/25mm, greater than 19/25mm account for 16%, 11～19/25mm account for 86%, fibre number is 2.3dtex.The curling elastic recovery rate of described fiber is 89～96%.
Embodiment 12
In PA melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=0.6+sin500t.16 ℃ of cooling quench temperature, the blowing zone is 0～900mm, and behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1200m/min, be in 5.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 9～35/25mm, and wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 80% of crispation number total distributed ratio, account for 5% less than 15/25mm, greater than 19/25mm account for 14%, 11～19/25mm account for 85%, fibre number is 2.5dtex.The curling elastic recovery rate of described fiber is 90～96%.
Embodiment 13
In PA melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=0.9+sin500t.21 ℃ of cooling quench temperature, the blowing zone is 0～100mm, and behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1200m/min, be in 5.2 situations at the total draft multiple, obtaining final fiber roll number of tracks is 9～35/25mm, and wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 80% of crispation number total distributed ratio, account for 5% less than 15/25mm, greater than 19/25mm account for 14%, 11～19/25mm account for 85%, fibre number is 2.5dtex.The curling elastic recovery rate of described fiber is 89～97%.
Embodiment 14
In PLA melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.1+1.1sin500t.21 ℃ of cooling quench temperature, the blowing zone is 0～1100mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1600m/min, be in 3.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 12～30/25mm, wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 50% of crispation number total distributed ratio, account for 25% less than 15/25mm, greater than 19/25mm account for 25%, 11～19/25mm account for 65%, fibre number is 4.5dtex.The curling elastic recovery rate of described fiber is 90～98%.
Embodiment 15
In PLA melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=0.8+1.1sin450t.16 ℃ of cooling quench temperature, the blowing zone is 0～1000mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1500m/min, be in 3.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 12～30/25mm, wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 50% of crispation number total distributed ratio, account for 26% less than 15/25mm, greater than 19/25mm account for 25%, 11～19/25mm account for 64%, fibre number is 4.4dtex.The curling elastic recovery rate of described fiber is 92～98%.
Embodiment 16
In PLA melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.4+1.1sin490t.26 ℃ of cooling quench temperature, the blowing zone is 0～1100mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1600m/min, be in 3.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 12～30/25mm, wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 50% of crispation number total distributed ratio, account for 21% less than 15/25mm, greater than 19/25mm account for 26%, 11～19/25mm account for 63%, fibre number is 4.5dtex.The curling elastic recovery rate of described fiber is 90～96%.
Embodiment 17
In PDT melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=0.95+sin400t.21 ℃ of cooling quench temperature, the blowing zone is 0～1000mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1500m/min, be in 4.2 the situation at the total draft multiple, obtaining final fiber roll number of tracks is 8～32/25mm, wherein the distribution number of fiber roll number of tracks in 11～16/25mm scope accounts for 55% of crispation number total distributed ratio, account for 25% less than 11/25mm, greater than 16/25mm account for 20%, 11～19/25mm account for 73%, fibre number is 4.1dtex.The curling elastic recovery rate of described fiber is 89～92%.
Embodiment 18
In PDT melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=0.95+sin450t.16 ℃ of cooling quench temperature, the blowing zone is 0～900mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1300m/min, be in 4 the situation at the total draft multiple, obtaining final fiber roll number of tracks is 8～32/25mm, wherein the distribution number of fiber roll number of tracks in 11～16/25mm scope accounts for 55% of crispation number total distributed ratio, account for 25% less than 11/25mm, greater than 16/25mm account for 20%, 11～19/25mm account for 69%, fibre number is 4.2dtex.The curling elastic recovery rate of described fiber is 89～92%.
Embodiment 19
In PDT melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.1+sin550t.26 ℃ of cooling quench temperature, the blowing zone is 0～1100mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1200m/min, be in 4 the situation at the total draft multiple, obtaining final fiber roll number of tracks is 8～32/25mm, wherein the distribution number of fiber roll number of tracks in 11～16/25mm scope accounts for 55% of crispation number total distributed ratio, account for 25% less than 11/25mm, greater than 16/25mm account for 20%, 11～19/25mm account for 74%, fibre number is 4.2dtex.The curling elastic recovery rate of described fiber is 89～92%.
Embodiment 20
In PE melt spinning process, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.3+0.95sin200t.26 ℃ of cooling quench temperature, the blowing zone is 0～1100mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1580m/min, be in 5.5 the situation at the total draft multiple, obtaining final fiber roll number of tracks is 12～32/25mm, wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 65% of crispation number total distributed ratio, account for 10% less than 15/25mm, greater than 19/25mm account for 25%, 11～19/25mm account for 75%, fibre number is 2.8dtex.The curling elastic recovery rate of described fiber is 88～93%.
Embodiment 21
Prepare in the doughnut process at the PE melt spinning, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1+0.95sin300t.21 ℃ of cooling quench temperature, the blowing zone is 0～1300mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1720m/min, be in 5.2 the situation at the total draft multiple, obtaining final hollowness of fibre is 6%, crispation number is 10～28/25mm, wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 75% of crispation number total distributed ratio, less than 15/25mm account for 5%, account for 20% greater than 19/25mm, 11～19/25mm accounts for 87%, and fibre number is 2.0dtex.The curling elastic recovery rate of described fiber is 88～92%.
Embodiment 22
Prepare in the doughnut process at the PE melt spinning, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=0.7+0.95sin430t.16 ℃ of cooling quench temperature, the blowing zone is 0～1000mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1720m/min, be in 5.0 the situation at the total draft multiple, obtaining final hollowness of fibre is 6%, crispation number is 10～28/25mm, wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 75% of crispation number total distributed ratio, less than 15/25mm account for 5%, account for 20% greater than 19/25mm, 11～19/25mm accounts for 87%, and fibre number is 2.0dtex.The curling elastic recovery rate of described fiber is 88～92%.
Embodiment 23
Prepare in the doughnut process at the PP melt spinning, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.1+0.95sin400t.21 ℃ of cooling quench temperature, the blowing zone is 0～1100mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1600m/min, be in 3 the situation at the total draft multiple, obtaining final hollowness of fibre is 32～70%, crispation number is 7～29/25mm, wherein the distribution number of fiber roll number of tracks in 11～16/25mm scope accounts for 60% of crispation number total distributed ratio, less than 11/25mm account for 15%, account for 25% greater than 16/25mm, 11～19/25mm accounts for 72%, and fibre number is 2.3dtex.The curling elastic recovery rate of described fiber is 89～95%.
Embodiment 24
Prepare in the doughnut process at the PET melt spinning, adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.1+0.95sin500t.21 ℃ of cooling quench temperature, the blowing zone is 20～1000mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1500m/min, be in 3.2 the situation at the total draft multiple, obtaining final hollowness of fibre is 70%, crispation number is 9～29/25mm, wherein the distribution number of fiber roll number of tracks in 11～16/25mm scope accounts for 65% of crispation number total distributed ratio, less than 11/25mm account for 10%, account for 25% greater than 16/25mm, 11～19/25mm accounts for 81%, and fibre number is 2.0dtex.The curling elastic recovery rate of described fiber is 92～96%.
Embodiment 25
Prepare in the profiled filament process at the PET melt spinning, wherein profiled fibre cross-section is pancake.Adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=0.95+sin400t.21 ℃ of cooling quench temperature, the blowing zone is 0～800mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1700m/min, be in 4 the situation at the total draft multiple, obtaining final hollowness of fibre is 32%, the fiber degree of profile is 20～60%, and crispation number is 10～33/25mm, and wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 75% of crispation number total distributed ratio, account for 5% less than 15/25mm, greater than 19/25mm account for 20%, 11～19/25mm account for 85%, fibre number is 2.4dtex.The curling elastic recovery rate of described fiber is 90～95%.
Embodiment 26
Prepare in the profiled filament process at the PP melt spinning, wherein profiled fibre cross-section is cross.Adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.1+0.95sin500t.21 ℃ of cooling quench temperature, the blowing zone is 0～1100mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1700m/min, be in 5 the situation at the total draft multiple, obtaining final fiber degree of profile is 30～70%, crispation number is 9～35/25mm, wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 70% of crispation number total distributed ratio, less than 15/25mm account for 10%, account for 20% greater than 19/25mm, 11～19/25mm accounts for 85%, and fibre number is 2.4dtex.The curling elastic recovery rate of described fiber is 85～98%.
Embodiment 27
Prepare in the profiled filament process at the PET melt spinning, wherein profiled fibre cross-section is petal.Adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.1+0.95sin600t.21 ℃ of cooling quench temperature, the blowing zone is 0～1100mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1700m/min, be in 4.5 the situation at the total draft multiple, obtaining final fiber degree of profile is 10-65%, crispation number is 13～35/25mm, wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 75% of crispation number total distributed ratio, less than 15/25mm account for 5%, account for 20% greater than 19/25mm, 11～19/25mm accounts for 85%, and fibre number is 2.8dtex.The curling elastic recovery rate of described fiber is 85～98%.
Embodiment 28
Prepare in the profiled filament process at the PET melt spinning, wherein profiled fibre cross-section is trilobal.Adopt the flexible blowing method, wherein the wind speed of cooling quench is changed by rule by pulse signal control, and described rule refers to that described wind speed satisfies equation V (t)=1.1+0.95sin500t.21 ℃ of cooling quench temperature, the blowing zone is 0～1100mm, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, winding speed is 1700m/min, be in 4.5 the situation at the total draft multiple, obtaining final fiber degree of profile is 40-70%, crispation number is 12～35/25mm, wherein the distribution number of fiber roll number of tracks in 15～19/25mm scope accounts for 70% of crispation number total distributed ratio, less than 15/25mm account for 10%, account for 20% greater than 19/25mm, 11～19/25mm accounts for 83%, and fibre number is 2.9dtex.The curling elastic recovery rate of described fiber is 85～90%.
Claims (6)
1. the method for a fibers melt spinning flexible blowing, it is characterized in that: in the melt spinning process, the wind speed of cooling quench is changed by rule by pulse signal control, described rule refers to that described wind speed satisfies wave equation V (t)=S+Asin ω t, wherein V (t) is wind speed, and S is fixed constant, and A is the peak swing of pulse signal fluctuation, ω is the pulse signal angular frequency, and t is the blowing burst length;
The melt feed of described melt spinning is PET, PA, PP, PE, PLA, PBT or PDT;
Described fixed constant S mainly is the fixed constant of determining according to the used melt feed kind of spinning, and the corresponding S of PET, PA, PP, PE, PLA, PBT and PDT is followed successively by respectively 0.8～1.1,0.6～1.2,0.9～1.3,0.7～1.3,0.8～1.4,0.8～1.1 and 0.8～1.1;
The peak swing A of described pulse signal determines constant for the kind according to melt feed, and the corresponding A of PET, PA, PP, PE, PLA, PBT and PDT is followed successively by respectively 1.0,1.0,0.95,0.95,1.1,1.0 and 1.0;
Angular frequency is 60～600 according to the curling number of fiber product in the described pulse signal fluctuation equation; When the fiber roll number of tracks is 11-16/25mm, account for crispation number total distributed ratio 40%～55% the time, ω is 60～400; As 15～19/25mm of crispation number, account for crispation number total distributed ratio 50～80% the time, ω is 250～600.
2. the method for a kind of fibers melt spinning flexible blowing according to claim 1 is characterized in that, described cooling quench is ring blowing, lateral blowing or radial outflow; The blowing zone of described cooling quench is spinnerets below 0～1100mm.
3. the prepared fiber of method of a kind of fibers melt spinning flexible blowing as claimed in claim 1, it is characterized in that: the curling elastic recovery rate of described fiber is 85～98%, behind the as-spun fibre drawn, fiber presents three-dimensional crimp, be in 3.5～5.5 situations at the total draft multiple, obtaining final fiber roll number of tracks is 7～35/25mm, and wherein the distribution number of fiber roll number of tracks in 11～19/25mm scope accounts for more than 50% of crispation number total distributed ratio.
4. a kind of fiber according to claim 3 is characterized in that, the filament number of described fiber is 2.0～4.5dtex.
5. a kind of fiber according to claim 3 is characterized in that, described fibre section is circular, hollow or odd-shaped cross section, and described odd-shaped cross section is flat, cross, petal, trilobal, triangle or star; The degree of profile of the fiber of described odd-shaped cross section is 10～70%.
6. a kind of fiber according to claim 5 is characterized in that, the degree of hollowness of the fiber of described hollow section is 6～32%; The fiber of described hollow section is many central hole structures of single fiber single hole concentric structure or eccentric structure or single fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110191778 CN102242410B (en) | 2011-07-10 | 2011-07-10 | Method for melting spinning and flexible blowing of fibers and product thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110191778 CN102242410B (en) | 2011-07-10 | 2011-07-10 | Method for melting spinning and flexible blowing of fibers and product thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102242410A CN102242410A (en) | 2011-11-16 |
| CN102242410B true CN102242410B (en) | 2013-10-30 |
Family
ID=44960643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110191778 Active CN102242410B (en) | 2011-07-10 | 2011-07-10 | Method for melting spinning and flexible blowing of fibers and product thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102242410B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106032583A (en) * | 2015-03-12 | 2016-10-19 | 中国石油化工股份有限公司 | A preparing method of a polyethylene fine-denier moisture-conducting fiber |
| CN108842196A (en) * | 2018-08-14 | 2018-11-20 | 太仓荣文合成纤维有限公司 | A kind of preparation method of PBT/PP three-dimensional crimp single hole fiber |
| CN111035993A (en) * | 2019-11-27 | 2020-04-21 | 东营俊富净化科技有限公司 | Preparation method of nanofiber composite liquid filtering material |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4241002A (en) * | 1978-05-24 | 1980-12-23 | Standard Oil Company (Indiana) | Process for producing homogeneous curly synthetic polymer fibers |
| JPS5685411A (en) * | 1979-12-06 | 1981-07-11 | Mitsubishi Rayon Co Ltd | Melt forming of hollow fiber |
| KR930000233B1 (en) * | 1990-12-26 | 1993-01-14 | 주식회사 코오롱 | Manufacturing process of polyamide anti-static fiber |
| KR100698003B1 (en) * | 2000-01-07 | 2007-03-23 | 데이진 가부시키가이샤 | Crimped polyester fiber and fibrous structure comprising the same |
| JP2007063679A (en) * | 2005-08-29 | 2007-03-15 | Teijin Fibers Ltd | Device for cooling yarn |
| CN101117732A (en) * | 2007-09-03 | 2008-02-06 | 张家港市龙杰特种化纤有限公司 | Method for manufacturing mono-component latent controlled crimp filament |
| CN101215723A (en) * | 2008-01-11 | 2008-07-09 | 东华大学 | 8-shaped PET/PTT hollow fibre and preparing method thereof |
-
2011
- 2011-07-10 CN CN 201110191778 patent/CN102242410B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102242410A (en) | 2011-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102251324B (en) | Production process of polyamide 6 special-shaped air-textured yarns with high strength and low boiling shrinkage | |
| CN102605444B (en) | Process for producing polyester industrial yarns by liquid-phase tackified melts in multi-end direct spinning manner | |
| CN103437018B (en) | A kind of production technology of super emulation silk type brocade ammonia air-coating silk | |
| CN104294383B (en) | A kind of air-flow rotating disk device for spinning being applied to prepare nanofiber | |
| CN101619505A (en) | Production method of filament for capron 6 one-step full stretching superfine denier socks | |
| CN102560787B (en) | Production method of bi-component composite fibers | |
| CN102242410B (en) | Method for melting spinning and flexible blowing of fibers and product thereof | |
| CN110528092B (en) | One-step production process of superfine nylon and polyester combined filament yarn | |
| CN102747474A (en) | Differential shrinkage composite fiber and processing method thereof | |
| CN102517660A (en) | Manufacture method of super-cotton-feeling super-softness flock fiber of polyester | |
| CN102828262A (en) | Processing method for producing differential shrinkage composite fibers through melt direct spinning | |
| CN102277630B (en) | Preparation method of novel differential polyester fibers | |
| CN204898138U (en) | Wire drawing device and dacron, 6 general types on polyamide fibre divide fine female silk spinning silk system | |
| CN102560701A (en) | Manufacturing method of FDY (fully drawn yarn) fine denier differentiation series products | |
| CN103409828A (en) | Method for preparing high-strength eight-head spinning polyamide-6 lower-middle denier full-drawn yarns | |
| CN203583036U (en) | Spinneret plate for three-leaf bright yarn | |
| CN103849947A (en) | Preparation method of chinlon deglossed FDY (Full Drawn Yarn) fine-denier porous yarn | |
| CN105256398B (en) | It is a kind of from crimping polyester drafting silk and preparation method and application | |
| CN102839435A (en) | Straight saw-toothed polyester fiber and preparation method thereof | |
| CN102277631B (en) | Preparation method of differential polyolefin fibers | |
| CN105063777B (en) | Wire-drawing frame and the female yarn spinning system of 6 universal points of terylene, polyamide fibre fibres | |
| CN109666988B (en) | Preparation method of slub yarn | |
| CN203034157U (en) | Thermoplastic material spinning equipment | |
| CN102242409B (en) | Method for preparing differential polyamide fibers | |
| CN105525374B (en) | A kind of bi-component fully drawn yarn spinning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210423 Address after: 214000 lakes in Jiangsu province Wuxi City foreshore Hu Dai Hongxiang Industrial Park Road No. 18 Patentee after: WUXI JINTONG HIGH FIBER Co.,Ltd. Address before: 201620 No. 2999 North Renmin Road, Xincheng District, Shanghai, Songjiang District Patentee before: DONGHUA University |