CN1403639A - Production process of composite Dacron filament with special shape, different fiber and different shrinkage - Google Patents
Production process of composite Dacron filament with special shape, different fiber and different shrinkage Download PDFInfo
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- CN1403639A CN1403639A CN 01126745 CN01126745A CN1403639A CN 1403639 A CN1403639 A CN 1403639A CN 01126745 CN01126745 CN 01126745 CN 01126745 A CN01126745 A CN 01126745A CN 1403639 A CN1403639 A CN 1403639A
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Abstract
In the production process of composite Dacron filament with different titer, special shape and different shrinkage, polyester melt is spun via a jetting board assembly with specially shaped jetting holes as well as large and small circular jetting holes to produce three corresponding kinds of tow and the three kinds of tow are produced into the composite Dacron filament product with different titer, special shape and different shrinkage through drafting in the heat pipes, networking and winding. The coarse and fine filaments have a heteromorphism ratio of 2.0-4.0, the specially shaped filament has a heteromorphism of y=20-55%, the heat pipe has temperature controlled in 110-160 deg.c and length of 1000-2000 mm, and the spinning winding speed is 3500-5300 m/min. The present invention features the simple technological process.
Description
Technical field
The present invention relates to the manufacture method of polyester filament, the manufacture method of the special-shaped different contraction three different polyester composite filaments of particularly different fibre.
Background technology
The special-shaped different contraction three different polyester composite filaments of different fibre are a kind of compound polyester filaments that odd-shaped cross section three kinds of terylene threads of different filament number circular cross-sections with two kinds and three have different hot water shrinkages that comprise, and the heavy denier yarn in the circular wire be highly to shrink other two kinds and be low contraction usually.This polyester composite filament is when heat treatments such as back road dyeing and finishing processing, because of thick dawn circular wire produces more the contraction than shaped filaments and thin dawn circular wire, shaped filaments and thin dawn circular wire produce the trickle natural curling tow surface that floats on, the tow cross section presents multi-level fluffy structure, produces the disorder of appropriateness.Its fabric has plentiful appearance style, the soft heavy feel of hanging down, good resilience and desirable dyeability.In addition, the cross sectional shape of general shaped filaments has triangle or trilobal and cross etc., wherein the silk of triangle or trilobal can be given fabric gloss preferably, be usually used in spinning silk fabric, and criss-cross silk has moisture absorption preferably and hydrofuge performance, and is present also very popular as a kind of functional fiber.
In the special-shaped different contraction three different polyester composite filament manufacturing technique of existing different fibre, the silk that obtain odd-shaped cross section and different filament numbers generally is to adopt the spinneret component of corresponding spinneret orifice to carry out spinning.And, need to adopt the spinning material of the polyester of different qualities viscosity usually for both in order to obtain different shrinkage factors, and when the drawing-off of tow, can adopt identical or different drafting multiple, it is poor to adopt different drafting multiples can obtain bigger different contraction.Also can adopt identical polyester in addition is spinning material, just obtains different hot water shrinkages by the drawing-off of carrying out different multiples.Usually the drawing-off that two kinds of tow are carried out different multiples is to adopt different technology to carry out respectively on each comfortable draft apparatus, the whole like this journey more complicated that just seems of spinning, adopt two kinds of polyester raw materials then to need two and overlap the system that polyester fondant is provided to spinning part separately, this has more increased the manufacturing cost of product undoubtedly.
Summary of the invention
Technical problem to be solved by this invention provides a kind of simple relatively method and makes the special-shaped different contraction three different polyester composite filaments of different fibre, it adopts single polyester raw material of planting, and the drafting process of different hot water shrinkage's silks adopts identical technology, and the different contraction difference that makes bicomponent filament yarn can reach 10%～40%.
The manufacture method of the special-shaped different contraction three different polyester composite filaments of different fibre provided by the invention presents by following technical proposals:
Polyester fondant obtains containing the tow of three kinds of corresponding spun filament by a spinneret component spinning that has the circular spinneret orifice of special-shaped spinneret orifice and two kinds of apertures of size, tow carries out drawing-off by heat pipe, obtain the special-shaped different contraction three different polyester composite filament products of different fibre through network and coiling then, thick dawn circular wire wherein and thin dawn circular wire filament number different fine than being 2.0～4.0, the filament number of shaped filaments is less than the filament number of thick dawn circular wire, degree of profile y=20～55% of shaped filaments, the temperature of heat pipe is controlled at 110～160 ℃, heat pipe length is 1000～2000mm, spinning silk winding speed is 3500～5300 meters/minute, and described degree of profile is expressed from the next:
Wherein r is a shaped filaments cross section inscribed circle radius, and R is a circumradius.
Above-mentioned special-shaped spinneret orifice shape can be triangle or trilobal, perhaps is cross; The degree of profile y of shaped filaments is preferably 40～50%; The filament number of thick dawn circular wire and thin dawn circular wire different fine than being preferably 2.5～4.0; Heat pipe length is preferably 1000～1400mm; Spinning silk winding speed is preferably 4000～4500 meters/minute; Shaped filaments, thin dawn circular wire, thick dawn circular wire three's is mixed fine than being 1: (0.8～1.2): (0.8～1.0); The filament number of shaped filaments can be 0.8～1.5dtex, and the filament number of thin dawn circular wire can be 0.8～1.5dtex, and the filament number of thick dawn circular wire can be 2.0～4.0dtex.
In the prior art, hot-pipe spinning process is applied to the suitability for industrialized production of terylene maturely, is proved to be a kind of advanced person's terylene spinning production technology in recent years.From the whole journey of spinning, general hot-pipe spinning process roughly comprises two parts: the polyester fondant thread goes out spinnerets after air-cooled solidification forming is a spun filament; Spun filament directly enters heat pipe then, because tow is subjected to the effect of static and fluffy, the whole zone in heat pipe is by the effect of air, and tow produces stepless continuous drafting.Therefore the heat pipe drawing-off is different from the hot-rolling drawing-off, is a kind of even, soft drawing-off.
The mechanism of heat pipe drawing-off is unique, and tow is realized hot-stretch by means of the resistance of air, so the drafting multiple that tow is realized in heat pipe depends on the air drag that tow is subjected to, and the size of air drag depends on the size of monofilament specific surface to a great extent.Filament number is littler, and specific surface is bigger, even simultaneously when filament number is identical, shaped filaments has bigger specific surface than circular wire, and the heal specific surface of big silk of degree of profile is bigger.Therefore be all circular wire, fine denier filament is subjected to bigger air drag, and filament number is subjected to bigger air drag smaller or equal to the shaped filaments of circular wire than circular wire, and is subjected to the drawing-off that bigger air drag means the bigger multiple of generation.The present invention has utilized this unique mechanism of heat pipe drawing-off dexterously, and three kinds of spun filament are realized the heat pipe drawing-off in same heat pipe, owing to be subjected to different air drag separately, even if thermal management built in identical temperature, also can be finished the drawing-off of different multiples.Finish degree of molecular orientation height in the silk of higher multiple drawing-off, have higher degree of crystallinity after the cooling, the hot water of silk shrinks just relatively little, finally like this makes that abnormity and thin dawn circular wire just have littler hot water shrinkage than thick dawn circular wire in the tow.The contraction difference that it has been generally acknowledged that two kinds of hot water shrinkages in the special-shaped different contraction three different polyester composite filaments of different fibre is 10%～40%, and is suitable, difference in shrinkage contractive effect less than 10% will be difficult to embody, and be higher than at 40% o'clock, tow after thermal contraction is too fluffy, and the yarn shape of making is also with variation.The inventor finds through a large amount of experiments, the filament number of thick dawn circular wire and thin dawn circular wire different fine than being 2.0～4.0, the filament number of shaped filaments is less than the filament number of circular wire, degree of profile y=20～55% of shaped filaments, two kinds of hot water shrinkages' contraction difference can reach 10%～40% in the special-shaped different contraction three different polyester composite filaments of different fibre.
Compared with the prior art, the special-shaped different contraction three different polyester composite filament manufacture methods of different fibre provided by the invention not only different hot water shrinkages' silk adopt a kind of polyester raw material spinning, and draft process also can be identical, whole technical process and normal polyester long filament hot-pipe spinning process are basic identical, make the special-shaped different contraction three different polyester composite filament manufacturing technique of different fibre become very easy, the relative normal polyester long filament of manufacturing cost does not almost increase, and product has higher added value.
The specific embodiment
Embodiment 1～12:
Adopt screw extruder, polyester fondant is obtained containing the tow of three kinds of corresponding spun filament by a spinneret component spinning that has the circular spinneret orifice of special-shaped spinneret orifice and two kinds of apertures of size, tow carries out drawing-off by heat pipe, obtains the special-shaped different contraction three different polyester composite filament products of different fibre through network and coiling then.
The spinnerets specification:
0.18 * 0.54 * 24f+0.25 * 0.72 * 18f+ abnormity * 0.5 * 24f
(special-shaped, the thin dawn, circular and thick circular spinneret orifice of dawn was in respectively on the concentric circles that circulates successively alternately.)
Other relevant spinning process condition that each embodiment adopts sees Table 1, and product index sees Table 2.
Table 1.
Table 2.
| Embodiment | Irregularly-shaped hole | Mix fine ratio | Heat pipe length (mm) | Heat pipe temperature (℃) | Winding speed (rice/minute) |
| Embodiment 1 | Three leaves | ??24∶24∶18 | ????1100 | ????125 | ????4000 |
| Embodiment 2 | Cross | ??24∶24∶18 | ????1100 | ????125 | ????4000 |
| Embodiment 3 | Triangle | ??24∶24∶18 | ????1100 | ????125 | ????4000 |
| Embodiment 4 | Three leaves | ??24∶24∶18 | ????1100 | ????110 | ????4000 |
| Embodiment 5 | Three leaves | ??24∶24∶18 | ????1100 | ????140 | ????4000 |
| Embodiment 6 | Three leaves | ??24∶24∶18 | ????1100 | ????160 | ????4000 |
| Embodiment 7 | Three leaves | ??24∶24∶18 | ????1100 | ????125 | ????3800 |
| Embodiment 8 | Three leaves | ??24∶24∶18 | ????1100 | ????125 | ????4200 |
| Embodiment 9 | Three leaves | ??24∶24∶18 | ????1100 | ????125 | ????4400 |
| Embodiment 10 | Three leaves | ??24∶24∶18 | ????1100 | ????125 | ????4000 |
| Embodiment 11 | Three leaves | ??24∶24∶18 | ????1100 | ????125 | ????4000 |
| Embodiment 12 | Three leaves | ??24∶24∶18 | ????1100 | ????125 | ????4000 |
| Total fiber number (dtex/f) | Profiled filament degree of profile (%) | Different fine ratio | Fracture strength (cN/dtex) | Extension at break (%) | Hot water shrinks poor (%) | |
| Embodiment 1 | ?111/18+24+24 | ????48 | ??1∶1.3∶2.7 | ??3.86 | ??36.3 | ??19.8 |
| Embodiment 2 | ?111/18+24+24 | ????37 | ??1∶1.3∶2.7 | ??3.82 | ??37.5 | ??17.2 |
| Embodiment 3 | ?111/18+24+24 | ????32 | ??1∶1.3∶2.7 | ??3.74 | ??38.6 | ??14.8 |
| Embodiment 4 | ?111/18+24+24 | ????48 | ??1∶1.3∶2.7 | ??3.61 | ??39.7 | ??27.5 |
| Embodiment 5 | ?111/18+24+24 | ????48 | ??1∶1.3∶2.7 | ??3.84 | ??35.6 | ??17.6 |
| Embodiment 6 | ?111/18+24+24 | ????48 | ??1∶1.3∶2.7 | ??3.88 | ??33.3 | ??9.5 |
| Embodiment 7 | ?111/18+24+24 | ????48 | ??1∶1.3∶2.7 | ??3.70 | ??38.5 | ??22.6 |
| Embodiment 8 | ?111/18+24+24 | ????48 | ??1∶1.3∶2.7 | ??3.87 | ??36.4 | ??18.0 |
| Embodiment 9 | ?111/18+24+24 | ????48 | ??1∶1.3∶2.7 | ??3.89 | ??36.1 | ??14.5 |
| Embodiment 10 | ?111/18+24+24 | ????52 | ??1∶1.3∶2.7 | ??3.88 | ??35.8 | ??20.3 |
| Embodiment 11 | ?111/18+24+24 | ????42 | ??1∶1.3∶2.7 | ??3.80 | ??37.9 | ??18.2 |
| Embodiment 12 | ?111/18+24+24 | ????34 | ??1∶1.3∶2.7 | ??3.74 | ??40.1 | ??16.9 |
In the table 2, total fiber number is formed: the low shaped filaments+low thin dawn circular wire+height that shrinks that shrinks shrinks thick dawn circular wire;
Fracture strength is the average fracture strength of different contraction combined yarn, and method of testing is according to " GB/T 14344-93 synthetic fiber filament and textured filament ultimate strength and extension at break test method ";
Hot water shrinks the boiling water shrinkage difference of difference for high constriction and low constriction in the different contraction combined yarn, and the boiling water shrinkage method of testing is according to " GB 6505-86 synthetic fiber filament and textured filament boiling water shrinkage test method ".
Claims (9)
1, a kind of method of making the special-shaped different contraction three different polyester composite filaments of different fibre, it is characterized in that polyester fondant obtains containing the tow of three kinds of corresponding spun filament by a spinneret component spinning that has the circular spinneret orifice of special-shaped spinneret orifice and two kinds of apertures of size, tow carries out drawing-off by heat pipe, obtain the special-shaped different contraction three different polyester composite filament products of different fibre through network and coiling then, thick dawn circular wire wherein and thin dawn circular wire filament number different fine than being 2.0～4.0, the filament number of shaped filaments is less than the filament number of thick dawn circular wire, degree of profile y=20～55% of shaped filaments, the temperature of heat pipe is controlled at 110～160 ℃, heat pipe length is 1000～2000mm, spinning silk winding speed is 3500～5300 meters/minute, and described degree of profile is expressed from the next:
Wherein r is a shaped filaments cross section inscribed circle radius, and R is a circumradius.
2,, it is characterized in that described special-shaped spinneret orifice is shaped as triangle or trilobal according to the method for the special-shaped different contraction three different polyester composite filaments of the different fibre of the described manufacturing of claim 1.
3,, it is characterized in that described special-shaped spinneret orifice is shaped as cross according to the method for the special-shaped different contraction three different polyester composite filaments of the different fibre of the described manufacturing of claim 1.
4,, it is characterized in that degree of profile y=40～50% of described shaped filaments according to the method for claim 1, the special-shaped different contraction three different polyester composite filaments of the different fibre of 2 or 3 described manufacturings.
5, according to the manufacture method of claim 1,2 or 3 described composite Dacron filament with different fiber and different shrinkage, what it is characterized in that described heavy denier yarn and fine denier filament filament number is different fine than being 2.5～4.0.
6,, it is characterized in that described heat pipe length is 1000～1400mm according to the method for claim 1, the special-shaped different contraction three different polyester composite filaments of the different fibre of 2 or 3 described manufacturings.
7,, it is characterized in that described spinning silk winding speed is 4000～4500 meters/minute according to the method for claim 1, the special-shaped different contraction three different polyester composite filaments of the different fibre of 2 or 3 described manufacturings.
8, according to the method for claim 1, the special-shaped different contraction three different polyester composite filaments of the different fibre of 2 or 3 described manufacturings, what it is characterized in that shaped filaments in the special-shaped different contraction three different polyester composite filament products of described different fibre, thin dawn circular wire, thick dawn circular wire three is mixed fine than being 1: (0.8～1.2): (0.8～1.0).
9, according to the method for claim 1, the special-shaped different contraction three different polyester composite filaments of the different fibre of 2 or 3 described manufacturings, the filament number that it is characterized in that shaped filaments in the special-shaped different contraction three different polyester composite filament products of described different fibre is 0.8～1.5dtex, the filament number of thin dawn circular wire is 0.8～1.5dtex, and the filament number of thick dawn circular wire is 2.0～4.0dtex.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01126745 CN1243138C (en) | 2001-09-13 | 2001-09-13 | Production process of composite Dacron filament with special shape, different fiber and different shrinkage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01126745 CN1243138C (en) | 2001-09-13 | 2001-09-13 | Production process of composite Dacron filament with special shape, different fiber and different shrinkage |
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| CN1403639A true CN1403639A (en) | 2003-03-19 |
| CN1243138C CN1243138C (en) | 2006-02-22 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162143A (en) * | 2011-03-30 | 2011-08-24 | 仪征市中兴涤纶纤维厂 | Preparation method of environment-friendly ultra-supple and ultra-elastic PTT (polytrimethylene terephthalate) fully drawn combined filament yarns by coloring nano-powder before melting |
| CN102181950A (en) * | 2011-03-30 | 2011-09-14 | 仪征市中兴涤纶纤维厂 | Preparation method of super-bright and showy special polyester fully-drawn mixed fiber filament for fabric tape |
| CN101768804B (en) * | 2008-12-26 | 2012-04-18 | 徐州斯尔克纤维科技股份有限公司 | Different shrinkage two-component network composite filament |
-
2001
- 2001-09-13 CN CN 01126745 patent/CN1243138C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101768804B (en) * | 2008-12-26 | 2012-04-18 | 徐州斯尔克纤维科技股份有限公司 | Different shrinkage two-component network composite filament |
| CN102162143A (en) * | 2011-03-30 | 2011-08-24 | 仪征市中兴涤纶纤维厂 | Preparation method of environment-friendly ultra-supple and ultra-elastic PTT (polytrimethylene terephthalate) fully drawn combined filament yarns by coloring nano-powder before melting |
| CN102181950A (en) * | 2011-03-30 | 2011-09-14 | 仪征市中兴涤纶纤维厂 | Preparation method of super-bright and showy special polyester fully-drawn mixed fiber filament for fabric tape |
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| CN1243138C (en) | 2006-02-22 |
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