CN108360104A - Three section chief's silk threads with drawn expanded performance and its manufacturing method - Google Patents
Three section chief's silk threads with drawn expanded performance and its manufacturing method Download PDFInfo
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- CN108360104A CN108360104A CN201810128206.0A CN201810128206A CN108360104A CN 108360104 A CN108360104 A CN 108360104A CN 201810128206 A CN201810128206 A CN 201810128206A CN 108360104 A CN108360104 A CN 108360104A
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- Prior art keywords
- twist
- texturing
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- tow
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Classifications
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/26—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre with characteristics dependent on the amount or direction of twist
- D02G3/28—Doubled, plied, or cabled threads
- D02G3/281—Doubled, plied, or cabled threads using one drawing frame for two slivers and twisting of the slivers to a single yarn, i.e. spin-twisting
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/045—Blended or other yarns or threads containing components made from different materials all components being made from artificial or synthetic material
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/46—Sewing-cottons or the like
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
Three section chief's silk threads with drawn expanded performance, including the second twist strand mutually kinked, air-texturing tow, second twist strand, air-texturing tow is in parallel construction between each other, second twist strand includes two strands and mutually kinks, and the first twist multifilament that structure is consistent, first twist multifilament is made for FDY filament, air-texturing tow is that POY long filaments are made, second twist strand, air-texturing tow is wavy shaped configuration, the diameter of second twist strand is the 75% -125% of air-texturing strand diameters, the intensity of second twist strand is more than air-texturing tow, the flexibility of second twist strand is less than air-texturing tow, and three section chief's silk thread Poisson's ratio be less than 0 be more than or equal to 0.5.The design not only has drawn expanded performance, can be gone out by actual fabrication, can carry out large-scale production, and sutures product not easy glide, and no filoplume is conducive to puncture suture, and intensity is high, high speed is suitble to sew.
Description
Technical field
The present invention relates to a kind of sewing thread, belong to field of textiles more particularly to a kind of three strands with drawn expanded performance
Long silk thread and its manufacturing method it is particularly applicable to will be provided with the sewing thread actual fabrication of drawn expanded performance to go out, and can realize rule
Modelling produces.
Background technology
Sewing thread is the suture material in fabrics for industrial use processing, the effects that playing suture, connection, reinforce.Sewing thread matter
The quality of amount not only influences sewing efficiency and processing cost, also influences the stable structure and presentation quality of suture product.Industry is stitched
Line of threading is generally divided into natural fiber sewing thread, synthetic fibers sewing thread and mixing sewing thread three categories by raw material.In sewing, need
Want sewing thread frictional resistance small, it is soft；After it has been gathered, need product secured, sewing thread does not slide.
Extension strain that Poisson ratio material, which refers to material, to be generated when being acted on by the tensile load of a direction and perpendicular to
The ratio between contraction strain of draw direction.Under normal circumstances, when most material is stretched, the Poisson ratio measured is all
One positive value, and negative poisson's ratio（Negative Poisson’s Ratio）Phenomenon is then completely on the contrary, when material is in a direction
On be stretched load effect when, expansion can be generated to a certain extent instead on the direction perpendicular to drawing force.It is negative
Poisson's ratio yarn it is simple definition be：When outer force effect is axially stretched, diameter increased yarn instead.Negative poisson's ratio yarn
Design although have existed, but be limited to its constitute and composition material, currently, just material object for, there is no negative poisson's ratio structure
Yarn gone out by actual fabrication, be not more put into production, carry out scale making.
The information for disclosing the background technology part is merely intended to increase the understanding to the general background of present patent application, without
It should be considered as recognizing or implying in any form that information composition has been the existing skill well known to persons skilled in the art
Art.
Invention content
The purpose of the present invention is overcome existing in the prior art not gone out by actual fabrication, can not carry out large-scale production
Defect and problem, provide it is a kind of can be gone out by actual fabrication, can carry out large-scale production with drawn expanded performance
Three section chief's silk threads and its manufacturing method.
In order to achieve the above object, technical solution of the invention is：A kind of three section chiefs silk with drawn expanded performance
Line；The three section chiefs silk thread includes the second twist strand mutually kinked, air-texturing tow, second twist strand, air-texturing tow phase
It is in parallel construction between mutually；The second twist strand includes first twist multifilament that two strands mutually kink and that structure is consistent, and the first twist is multiple
Silk is made for FDY filament, and the air-texturing tow is the tow that AIRJET TEXTURING YARN is made, and AIRJET TEXTURING YARN is
POY long filaments are formed through deformation processing；The second twist strand, air-texturing tow are wavy shaped configuration, the diameter of second twist strand
It is the 75% -125% of air-texturing strand diameters, the intensity of second twist strand is more than air-texturing tow, and the flexibility of second twist strand is small
In air-texturing tow；The twist direction of the first twist multifilament is twisted for Z, and the twist direction of second twist strand is twisted for S, and the twist direction of three section chief's silk threads is
Z is twisted, and the Poisson's ratio of three section chief's silk threads is less than 0 and is more than or equal to -0.5.
The diameter of the second twist strand is the 100% of air-texturing strand diameters.
The fracture strength of the FDY filament is 5.2 cN/dtex -12.0 cN/dtex, and elongation at break is 7% -23%.
The FDY filament is FDY polyester industrial filaments or FDY polyamide industrial filaments.
The elongation at break of the POY long filaments be 30% -60%, POY long filaments through deformation processing at AIRJET TEXTURING YARN when it is super
The rate of feeding is 25% -50%.
The POY long filaments are POY polyester industrial filaments or POY polyamide industrial filaments.
A kind of manufacturing method of above-mentioned three section chief's silk threads with drawn expanded performance, the manufacturing method includes following step
Suddenly：
First make second twist strand, air-texturing tow respectively, then by second twist strand, air-texturing tow simultaneously by doubling frame or
Two-for-one twister increases 10T/10cm -40T/10cm's so that second twist strand, air-texturing tow mutually kink as primary filaments line
The twist, twist direction are twisted for Z, then carry out high-temperature shaping to primary filaments line to obtain three section chief's silk threads；Wherein, retwist stock
Before by two-for-one twister, second twist strand, air-texturing tow first undergo doubling process to obtain and close for line, air-texturing tow
Yarn, then by multi-folded yarn by two-for-one twister to produce primary filaments line.
The doubling process refers to：Second twist strand, air-texturing tow are first undergone into twizzle, guide porcelain road, slot successively
To obtain multi-folded yarn after cylinder, and yarn tension is 3-8cN, then by multi-folded yarn through winding procedure around multi-folded yarn cylinder, then will and close
Tube is placed on two-for-one twister to produce primary filaments line；Guide porcelain road is hollow circular cone structure, guide porcelain road
Input terminal width is more than the output end width in guide porcelain road.
The making second twist strand refers to：First by selected FDY filament by boundling and wire process is to obtain non-twist multifilament,
Non-twist multifilament is increased to the twist of 5T/10cm -30T/10cm by first twist process again, twist direction is twisted for Z, to obtain first twist
Then the consistent first twist multifilament of two bursts of structures is undergone and silk, multifilament twisting process is to increase 5T/10cm -20T/ by multifilament successively
The twist of 10cm, twist direction is twisted for S, to obtain second twist strand；The fracture strength of the FDY filament is 5.2 cN/dtex -12.0
CN/dtex, elongation at break are 7% -23%.
The making air-texturing tow refers to：First by selected POY long filaments, by boundling, simultaneously wire process is non-twist to obtain
Multifilament, then non-twist multifilament is passed sequentially through into precursor stretching, deformation, thermostabilization, sizing, rolling step, to obtain AIRJET TEXTURING YARN
Beam；The over feed rate(OFR) when elongation at break of the POY long filaments is 30% -60%, POY long filaments experience deformation processing is 25% -
50%。
Compared with prior art, beneficial effects of the present invention are：
1, the present invention has in three section chief's silk threads and its manufacturing method of drawn expanded performance, and three section chief's silk threads include mutually kinking
Second twist strand, air-texturing tow, second twist strand includes first twist multifilament that two strands mutually kink and that structure is consistent, this is first
It twists multifilament to be made for FDY filament, air-texturing tow is that POY long filaments are process, and second twist strand, air-texturing tow are equal
For wavy shaped configuration, the diameter of second twist strand is the 75% -125% of air-texturing strand diameters, when making, second twist strand, air
The diameter of deformation tow is not much different, and the twist contraction generated when twisting side by side is almost the same so that three section chief's silk thread twists of formation
Stablize, so as to put into actual production using twisted construction arranged side by side, carries out scale making, be readily produced and apply, apply
When, since the intensity of second twist strand is more than air-texturing tow, the flexibility of second twist strand is less than air-texturing tow, as three section chiefs
Silk thread in an axial direction by force-extension when, second twist strand is tightened, and sandwich layer yarn, and the retwist that air-texturing tow can then be stretched are formed
Strand squeezes and buckling, forms yarn helix and is wrapped in outside second twist strand, fasciated yarn is formed, at this point, three section chief's silk threads is straight
Diameter is more than stretch before, therefore it is with drawn expanded performance.Therefore, the present invention can not only be gone out by actual fabrication, and can
Carry out large-scale production.
2, the present invention has in three section chief's silk threads and its manufacturing method of drawn expanded performance, and three section chief's silk threads are not only negative
Poisson's ratio yarn has drawn expanded performance, moreover, three section chief's silk threads are made of second twist strand, air-texturing tow, retwist stock
Line, air-texturing tow are made of filament fiber, and advantage includes：First, drawn expanded performance to use three section chief
The product of silk suture not easy glide；Secondly, the characteristics of being made of filament fiber makes three final section chief's silk threads not have hair
Plumage has the advantages that intensity is high, item is dry uniformly, the twist is stablized, is conducive to puncture suture；Again, the intensity of second twist strand is high, is suitble to
High speed sewing processing, suture fastness are high.Therefore, the present invention not only has drawn expanded performance, sutures product not easy glide, and
Without filoplume, it is conducive to puncture suture, intensity is high, and high speed is suitble to sew.
3, the present invention has in three section chief's silk threads and its manufacturing method of drawn expanded performance, is realizing second twist strand, sky
Gas deforms when kinking of tow, both can directly be realized by doubling frame, can also be realized by doubling process+two-for-one twister, no
Only can actual fabrication go out this product, and actual production can be put into, it is suitable for scale production.Therefore, the present invention is not only
It can be gone out by actual fabrication, and large-scale production can be carried out.
Description of the drawings
Fig. 1 is the structural schematic diagram of three section chief's silk threads before the stretching in the present invention.
Fig. 2 is the structural schematic diagram of three section chief's silk threads after the stretch in the present invention.
Fig. 3 is the equipment process chart that multi-folded yarn makes in the present invention.
Fig. 4 is the structural schematic diagram in guide porcelain road in Fig. 3.
Specific implementation mode
Below in conjunction with description of the drawings, the present invention is described in further detail with specific implementation mode.
Referring to Fig. 1 to Fig. 4, a kind of three section chief's silk threads with drawn expanded performance；The three section chiefs silk thread includes mutual
Second twist strand, the air-texturing tow kinked, second twist strand, air-texturing tow are in parallel construction between each other；The retwist
Strand includes first twist multifilament that two strands mutually kink and that structure is consistent, which is made for FDY filament, described
Air-texturing tow is the tow that AIRJET TEXTURING YARN is made, and AIRJET TEXTURING YARN is that POY long filaments are formed through deformation processing；It is described
Second twist strand, air-texturing tow are wavy shaped configuration, and the diameter of second twist strand is the 75%-of air-texturing strand diameters
125%, the intensity of second twist strand is more than air-texturing tow, and the flexibility of second twist strand is less than air-texturing tow；The first twist is multiple
The twist direction of silk is twisted for Z, and the twist direction of second twist strand is twisted for S, and the twist direction of three section chief's silk threads is twisted for Z, and the Poisson's ratio of three section chief's silk threads
It is more than or equal to -0.5 less than 0.
The diameter of the second twist strand is the 100% of air-texturing strand diameters.
The fracture strength of the FDY filament is 5.2 cN/dtex -12.0 cN/dtex, and elongation at break is 7% -23%.
The FDY filament is FDY polyester industrial filaments or FDY polyamide industrial filaments.
The elongation at break of the POY long filaments be 30% -60%, POY long filaments through deformation processing at AIRJET TEXTURING YARN when it is super
The rate of feeding is 25% -50%.
The POY long filaments are POY polyester industrial filaments or POY polyamide industrial filaments.
A kind of manufacturing method of above-mentioned three section chief's silk threads with drawn expanded performance, the manufacturing method includes following step
Suddenly：
First make second twist strand, air-texturing tow respectively, then by second twist strand, air-texturing tow simultaneously by doubling frame or
Two-for-one twister increases 10T/10cm -40T/10cm's so that second twist strand, air-texturing tow mutually kink as primary filaments line
The twist, twist direction are twisted for Z, then carry out high-temperature shaping to primary filaments line to obtain three section chief's silk threads；Wherein, retwist stock
Before by two-for-one twister, second twist strand, air-texturing tow first undergo doubling process to obtain and close for line, air-texturing tow
Yarn, then by multi-folded yarn by two-for-one twister to produce primary filaments line.
The doubling process refers to：Second twist strand, air-texturing tow are first undergone into twizzle, guide porcelain road, slot successively
To obtain multi-folded yarn after cylinder, and yarn tension is 3-8cN, then by multi-folded yarn through winding procedure around multi-folded yarn cylinder, then will and close
Tube is placed on two-for-one twister to produce primary filaments line；Guide porcelain road is hollow circular cone structure, guide porcelain road
Input terminal width is more than the output end width in guide porcelain road.
The making second twist strand refers to：First by selected FDY filament by boundling and wire process is to obtain non-twist multifilament,
Non-twist multifilament is increased to the twist of 5T/10cm -30T/10cm by first twist process again, twist direction is twisted for Z, to obtain first twist
Then the consistent first twist multifilament of two bursts of structures is undergone and silk, multifilament twisting process is to increase 5T/10cm -20T/ by multifilament successively
The twist of 10cm, twist direction is twisted for S, to obtain second twist strand；The fracture strength of the FDY filament is 5.2 cN/dtex -12.0
CN/dtex, elongation at break are 7% -23%.
The making air-texturing tow refers to：First by selected POY long filaments, by boundling, simultaneously wire process is non-twist to obtain
Multifilament, then non-twist multifilament is passed sequentially through into precursor stretching, deformation, thermostabilization, sizing, rolling step, to obtain AIRJET TEXTURING YARN
Beam；The over feed rate(OFR) when elongation at break of the POY long filaments is 30% -60%, POY long filaments experience deformation processing is 25% -
50%。
The principle of the present invention is described as follows：
FDY filament：Refer to FDY（FULLY DRAWN YARN）Fully drawn yarn introduces stretching action in spinning process, can obtain
Obtain the undrawn yarn with high-orientation and crystalline medium degree, as fully drawn yarn.The conventional fully drawn yarn for having terylene and polyamide fibre,
Belong to chemical-fibres filaments.
POY long filaments：Refer to POY（Pre-oriented yarn）Preoriented yarn.
AIRJET TEXTURING YARN：Using compressed air, make the long filament of chemical fibre that air jet texturing occur, tow outer ring is locally risen small
Volume, then make its portion fractures, it forms several ends and is exposed, can preferably be suitable for sewing thread field.AIRJET TEXTURING YARN
It is a kind of processing method, feedstock property is not changed.The present invention uses POY long filaments for raw material, makes AIRJET TEXTURING YARN, makes
When, over feed rate(OFR) is 25% -50%, meanwhile, the elongation at breaks of POY long filaments is limited as 30% -60%.
The diameter of second twist strand is the 75% -125% of air-texturing strand diameters：Optimal selection is second twist strand, air change
The diameter of shape tow is consistent, and such most convenient is manufactured.Because when processing, with two root unit body feeding speed of thickness
Unanimously, when twisting, two root unit bodies generate identical twist contraction, and the structure of two root unit body loopings arranged side by side is just stablized, just suitable for this
The actual fabrication of sewing thread and large-scale production in invention.
Three section chief's silk threads in the present invention, referring to Fig. 1 and Fig. 2, when in an axial direction by force-extension, second twist strand by
It is relatively poor in its resilience, it is not likely to produce deformation, is tightened under the effect of external force, formation sandwich layer yarn, and air-texturing tow
The second twist strand that can be then stretched squeezes and buckling, forms yarn helix and is wrapped in outside second twist strand, forms fasciated yarn.Assuming that
The width of single thread（Diameter）For D, before stretching, the width of three section chief's silk threads be second twist strand, air-texturing tow diameter it
With, as 2D, after air-texturing tow translates into looping structure after three section chief's silk threads are stretched, the width change of three section chief's silk threads
At 3D, i.e. three section chief's silk threads produce drawn expanded.Three section chief's silk threads obtained through the invention have and adapt to high speed seam
Thread and suture secured feature：On the one hand, in sewing, since sewing cable architecture is uniformly without filoplume, it is conducive to puncture suture, meanwhile,
Has high intensity, the second twist strand of high rigidity feature undertakes the effect of stitch tension, suitable high speed sewing processing；On the other hand,
The product of suture, stretches under external force, has high flexibility, the air-texturing tow of high resiliency feature will produce winding effect
It answers, sewing thread generates lateral expansion because of stretching, and prevents the sliding of sewing thread.
Boundling and wire process：Non-twist multifilament is prepared by boundling and wire process, boundling is designed by fineness, to ensure tow
Line density, monofilament tension want uniformity, in favor of the progress of subsequent handling.
Winding procedure：That is reeling process.This process changes package, increases the Rong Siliang of tow package, improves later process
Productivity.When operation, tow is checked using yarn cleaning device, removes fault influential on quality and impurity on tow,
Improve the uniformity and finish of tow.
High-temperature shaping process：Under certain temperature and damp condition, no-station pole canopy heat treatment is carried out to primary filaments line, is eliminated
The internal stress that primary filaments line is generated by twisting stablizes the twist of primary filaments line, the twist contraction shadow for avoiding primary filaments line from generating
Ring sewed product presentation quality.
Doubling process：Referring to Fig. 3 and Fig. 4, if produced with doubling frame, doubling process is not needed, but this method produces
Efficiency is low, and speed is slow.If producing product with two-for-one twister, doubling process is needed, when processing, second twist strand, AIRJET TEXTURING YARN
Beam first merges together to obtain multi-folded yarn, then by multi-folded yarn through winding procedure around multi-folded yarn cylinder, then with two-for-one twister pair and close
" multi-folded yarn " wound on tube carries out high speed（Two times, three times speed, or even more than）Twisting.Cheese is to this section of yarn of guide hook
The tension of line is known as and yarn tension, and size is 3-8cN.
Guide porcelain road：Referring to Fig. 3 and Fig. 4, the main function in guide porcelain road is the big component of two groups of mechanical performance difference
It smoothly and is combined, so that it is guaranteed that the smooth production of the subsequent three section chief's silk threads for having drawn expanded performance.
Embodiment 1：
Make second twist strand：First by selected FDY filament by boundling and wire process to obtain non-twist multifilament, then by non-twist multifilament
By first twist process to increase the twist of 5T/10cm, twist direction is twisted for Z, then that two bursts of structures are consistent to obtain first twist multifilament
First twist multifilament undergo successively and silk, multifilament twisting process are to increase the twist of 20T/10cm, twist direction is S twirls, to obtain retwist
Strand；The fracture strength of the FDY filament is 5.2 cN/dtex, elongation at break 7%.
Make air-texturing tow：First by selected POY long filaments by boundling and wire process to obtain non-twist multifilament, then will
Non-twist multifilament passes sequentially through precursor stretching, deformation, thermostabilization, sizing, rolling step, to obtain air-texturing tow；The POY
The over feed rate(OFR) when elongation at break of long filament is 30% -60%, POY long filaments experience deformation processing is 25% -50%.
Make three section chief's silk threads：First by second twist strand, air-texturing tow simultaneously by doubling frame or two-for-one twister so that multiple
It twists strand, air-texturing tow mutually to kink as primary filaments line, increases the twist of 40T/10cm, twist direction is Z twirls, then to primary
Long silk thread carries out high-temperature shaping to obtain three section chief's silk threads；Wherein, second twist strand, air-texturing tow are passing through double twisting
Before machine, second twist strand, air-texturing tow first undergo doubling process to obtain multi-folded yarn, then by multi-folded yarn by two-for-one twister with
Produce primary filaments line.The Poisson's ratio of three section chief's silk threads of gained be -0.08, in second twist strand diameter be air become
The 100% of shape strand diameters.
Embodiment 2：
Substance with embodiment 1, the difference is that：
It makes in second twist strand：The twist for obtaining increasing when first twist multifilament 30T/10cm, obtains increasing 5T/10cm when second twist strand
The twist；The fracture strength of the FDY filament is 12.0 cN/dtex, elongation at break 23%.
It makes in three section chief's silk threads：Increasing the twist of 10T/10cm, the Poisson's ratio of three section chief's silk threads of gained is -0.09,
The diameter of second twist strand in it is the 75% of air-texturing strand diameters.
Embodiment 3：
Substance with embodiment 1, the difference is that：
It makes in second twist strand：The twist for obtaining increasing when first twist multifilament 30T/10cm, obtains increasing 20T/ when second twist strand
The twist of 10cm；The fracture strength of the FDY filament is 12.0 cN/dtex, elongation at break 23%.
It makes in three section chief's silk threads：Increasing the twist of 40T/10cm, the Poisson's ratio of three section chief's silk threads of gained is -0.50,
The diameter of second twist strand in it is the 100% of air-texturing strand diameters.
Embodiment 4：
Substance with embodiment 1, the difference is that：
It makes in second twist strand：The twist for obtaining increasing when first twist multifilament 10T/10cm, obtains increasing 8T/10cm when second twist strand
The twist；The fracture strength of the FDY filament is 7.3 cN/dtex, elongation at break 10%.
It makes in three section chief's silk threads：Increasing the twist of 20T/10cm, the Poisson's ratio of three section chief's silk threads of gained is -0.31,
The diameter of second twist strand in it is the 85% of air-texturing strand diameters.
Embodiment 5：
Substance with embodiment 1, the difference is that：
It makes in second twist strand：The twist for obtaining increasing when first twist multifilament 15T/10cm, obtains increasing 10T/ when second twist strand
The twist of 10cm；The fracture strength of the FDY filament is 8.8 cN/dtex, elongation at break 16%.
It makes in three section chief's silk threads：Increasing the twist of 20T/10cm, the Poisson's ratio of three section chief's silk threads of gained is -0.24,
The diameter of second twist strand in it is the 105% of air-texturing strand diameters.
Embodiment 6：
Substance with embodiment 1, the difference is that：
It makes in second twist strand：The twist for obtaining increasing when first twist multifilament 25T/10cm, obtains increasing 16T/ when second twist strand
The twist of 10cm；The fracture strength of the FDY filament is 11.1 cN/dtex, elongation at break 22%.
It makes in three section chief's silk threads：Increasing the twist of 32T/10cm, the Poisson's ratio of three section chief's silk threads of gained is -0.40,
The diameter of second twist strand in it is the 115% of air-texturing strand diameters.
Embodiment 7：
Substance with embodiment 1, the difference is that：
It makes in second twist strand：The twist for obtaining increasing when first twist multifilament 9T/10cm, obtains increasing 9T/10cm when second twist strand
The twist；The fracture strength of the FDY filament is 9.0 cN/dtex, elongation at break 10.6%.
It makes in three section chief's silk threads：Increasing the twist of 16T/10cm, the Poisson's ratio of three section chief's silk threads of gained is -0.18,
The diameter of second twist strand in it is the 110% of air-texturing strand diameters.
Embodiment 8：
Substance with embodiment 1, the difference is that：
It makes in second twist strand：The twist for obtaining increasing when first twist multifilament 28T/10cm, obtains increasing 16T/ when second twist strand
The twist of 10cm；The fracture strength of the FDY filament is 8.1 cN/dtex, elongation at break 13%.
It makes in three section chief's silk threads：Increasing the twist of 28T/10cm, the Poisson's ratio of three section chief's silk threads of gained is -0.36,
The diameter of second twist strand in it is the 80% of air-texturing strand diameters.
Embodiment 9：
Substance with embodiment 1, the difference is that：
It makes in second twist strand：The twist for obtaining increasing when first twist multifilament 12T/10cm, obtains increasing 15T/ when second twist strand
The twist of 10cm；The fracture strength of the FDY filament is 7.8 cN/dtex, elongation at break 20%.
It makes in three section chief's silk threads：Increasing the twist of 35T/10cm, the Poisson's ratio of three section chief's silk threads of gained is -0.26,
The diameter of second twist strand in it is the 90% of air-texturing strand diameters.
Claims (10)
1. a kind of three section chief's silk threads with drawn expanded performance, it is characterised in that：The three section chiefs silk thread includes mutually kinking
Second twist strand, air-texturing tow, second twist strand, air-texturing tow between each other be in parallel construction；The second twist strand
Including the first twist multifilament that two strands mutually kink and structure is consistent, which is made for FDY filament, the air
Deformation tow is the tow that AIRJET TEXTURING YARN is made, and AIRJET TEXTURING YARN is that POY long filaments are formed through deformation processing；The retwist
Strand, air-texturing tow are wavy shaped configuration, and the diameter of second twist strand is the 75% -125% of air-texturing strand diameters,
The intensity of second twist strand is more than air-texturing tow, and the flexibility of second twist strand is less than air-texturing tow；The first twist multifilament
Twist direction is twisted for Z, and the twist direction of second twist strand is twisted for S, and the twist direction of three section chief's silk threads is twisted for Z, and the Poisson's ratio of three section chief's silk threads is less than 0
More than or equal to -0.5.
2. a kind of three section chief's silk threads with drawn expanded performance according to claim 1, it is characterised in that：The retwist
The diameter of strand is the 100% of air-texturing strand diameters.
3. a kind of three section chief's silk threads with drawn expanded performance according to claim 1 or 2, it is characterised in that：It is described
The fracture strength of FDY filament is 5.2 cN/dtex -12.0 cN/dtex, and elongation at break is 7% -23%.
4. a kind of three section chief's silk threads with drawn expanded performance according to claim 1 or 2, it is characterised in that：It is described
FDY filament is FDY polyester industrial filaments or FDY polyamide industrial filaments.
5. a kind of three section chief's silk threads with drawn expanded performance according to claim 1 or 2, it is characterised in that：It is described
The elongation at break of POY long filaments be 30% -60%, POY long filaments through deformation processing at AIRJET TEXTURING YARN when over feed rate(OFR) be 25% -
50%。
6. a kind of three section chief's silk threads with drawn expanded performance according to claim 1 or 2, it is characterised in that：It is described
POY long filaments are POY polyester industrial filaments or POY polyamide industrial filaments.
7. a kind of manufacturing method of three section chief's silk threads described in claim 1 with drawn expanded performance, it is characterised in that institute
Manufacturing method is stated to include the following steps：
First make second twist strand, air-texturing tow respectively, then by second twist strand, air-texturing tow simultaneously by doubling frame or
Two-for-one twister increases 10T/10cm -40T/10cm's so that second twist strand, air-texturing tow mutually kink as primary filaments line
The twist, twist direction are twisted for Z, then carry out high-temperature shaping to primary filaments line to obtain three section chief's silk threads；Wherein, retwist stock
Before by two-for-one twister, second twist strand, air-texturing tow first undergo doubling process to obtain and close for line, air-texturing tow
Yarn, then by multi-folded yarn by two-for-one twister to produce primary filaments line.
8. a kind of manufacturing method of three section chief's silk threads with drawn expanded performance according to claim 7, feature exist
In：The doubling process refers to：First by second twist strand, air-texturing tow undergo successively after twizzle, guide porcelain road, groove drum with
Obtain multi-folded yarn, and yarn tension is 3-8cN, then by multi-folded yarn through winding procedure around multi-folded yarn cylinder, then multi-folded yarn cylinder is put
To produce primary filaments line on two-for-one twister；Guide porcelain road is hollow circular cone structure, the input terminal in guide porcelain road
Width is more than the output end width in guide porcelain road.
9. a kind of manufacturing method of three section chief's silk threads with drawn expanded performance according to claim 7 or 8, feature
It is：
The making second twist strand refers to：First by selected FDY filament by boundling and wire process to obtain non-twist multifilament, then will
Non-twist multifilament increases the twist of 5T/10cm -30T/10cm by first twist process, and twist direction is twisted for Z, to obtain first twist multifilament,
Then the consistent first twist multifilament of two bursts of structures is undergone successively and silk, multifilament twisting process is to increase 5T/10cm -20T/10cm
The twist, twist direction be S twist, to obtain second twist strand；The fracture strength of the FDY filament is 5.2 cN/dtex -12.0 cN/
Dtex, elongation at break are 7% -23%.
10. a kind of manufacturing method of three section chief's silk threads with drawn expanded performance according to claim 7 or 8, special
Sign is：
The making air-texturing tow refers to：First by selected POY long filaments by boundling and wire process is to obtain non-twist multifilament,
Non-twist multifilament is passed sequentially through into precursor stretching, deformation, thermostabilization, sizing, rolling step again, to obtain air-texturing tow；Institute
The over feed rate(OFR) when elongation at break for stating POY long filaments is 30% -60%, POY long filaments experience deformation processing is 25% -50%.
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