CN108728968B - Multicolor segments coloured silk flax, the processing method of chemical-fibres filaments enveloped composite yarn and composite yarn and equipment - Google Patents

Multicolor segments coloured silk flax, the processing method of chemical-fibres filaments enveloped composite yarn and composite yarn and equipment Download PDF

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CN108728968B
CN108728968B CN201810728922.2A CN201810728922A CN108728968B CN 108728968 B CN108728968 B CN 108728968B CN 201810728922 A CN201810728922 A CN 201810728922A CN 108728968 B CN108728968 B CN 108728968B
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yarn
heart
heart yarn
hollow ingot
twist
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CN108728968A (en
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敖利民
唐雯
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Zhejiang Saurer New Materials Technology Co ltd
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Jiaxing University
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    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/02Yarns or threads characterised by the material or by the materials from which they are made
    • D02G3/04Blended or other yarns or threads containing components made from different materials
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/34Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
    • D02G3/343Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns using hollow spindles
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02GCRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G3/00Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
    • D02G3/22Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
    • D02G3/34Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns
    • D02G3/346Yarns or threads having slubs, knops, spirals, loops, tufts, or other irregular or decorative effects, i.e. effect yarns with coloured effects, i.e. by differential dyeing process
    • DTEXTILES; PAPER
    • D10INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10BINDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01Natural vegetable fibres
    • D10B2201/04Linen

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

The present invention provides a kind of Multicolor segments coloured silk flax, the processing method and composite yarn and equipment of chemical-fibres filaments enveloped composite yarn, with the long bast fibre spinning creamed linen yarn of wet process, two and the above colored filaments yarn yarn are simultaneously combined into heart yarn, utilize the distinctive heart yarn false twisting of hollow ingot wraping spinning-looping concretion technology feature, linen plucked is distributed in using the heart yarn twist, wave phenomenon under outer looping yarn tension fluctuation and heart yarn tension fluctuation collective effect, and false twist effect is generated in the grip hold arc that hollow ingot central tube lower end is formed using heart yarn, in conjunction with using parallel-moving type twizzle or tandem twizzle or notch type sleeve scroll tube active accommodation false twist effect, aggravate irregular variation and the Twist Unevenness of the heart yarn twist, heart yarn is set to generate irregular section of color effect, and using colourless, good long filament (the monofilament of transparency, or low radical multifilament) outside Fasciated yarn carries out looping consolidation, obtains flax composite yarn with Multicolor segments coloured silk feature.

Description

Multicolor segments coloured silk flax, the processing method of chemical-fibres filaments enveloped composite yarn and composite yarn and Equipment
Technical field
The present invention relates to pattern flax complex yarn manufacture fields, and in particular to a kind of Multicolor segments coloured silk flax, chemical-fibres filaments The processing method and composite yarn and equipment of enveloped composite yarn.
Background technique
Flax fiber is a kind of biomass fiber (native cellulose fibre) and a kind of rare natural fiber, yield Only account for 1.5% or so of natural fiber total amount.Flax fiber textile have good cooling feeling, straightening sense and clean sense and Have the function of gas permeability and wet guilding it is good, it is resistance to it is mould, resistance to damage by worms, uvioresistant, the excellent performances such as antistatic and, this is other natural fibres Dimension is not available and can not replace, and is less that chemical fibre is incomparable.
But the inherent shortcoming of flaxen fiber such as rigidity is big, poor flexibility, dyeability difference result in its textile process performance compared with Difference also affects the wearability of its fabric.
Flax spinning can be divided into pure flax spinning and linen blend spinning.Pure flax spinning process can be divided into long bast fibre spinning and short Bast fibre spinning, wherein it is flax raw ramie through scutched line prepared by preliminary working (half deguming) (process of fiber, long fibre that long bast fibre spinning is raw materials used Dimension);During tow system raw materials used cast tow (one is thick, two thick) and scutched line hackling to generate during raw ramie preliminary working The cast tow of generation.Long bast fibre spinning and tow system can be divided into wet spinning and dry method spinning again.The characteristics of wet spinning, is: in spinning frame On, rove, which first passes through sink and soaks, enters back into draft area.Rove after soaking, inoglia softening, is conducive to drawing-off, Er Qieyou Keep resultant yarn bright and clean in the patch volt effect of water, filoplume is less.Long bast fibre spinning is because using process of fiber spinning (long fiber crops), resultant yarn filoplume is obvious Less than tow system.But since flaxen fiber is firm, cohesive force is poor, and resultant yarn filoplume is still more, is rubbed in following process by parts It wipes, filoplume can also regenerate, that is, generate new filoplume.Yarn filoplume, especially long filoplume can be stranded to weaving preparation and woven strip It is difficult.Dimity filoplume is more, also will increase the prodding and itching feeling (being caused by flax fiber is firm) when fabric is worn next to the skin.
It, can item processed, then the method progress spinning processing using sliver blending respectively when flax and other fiber blends;? Flax fiber can be cut into length corresponding with mixed fiber, and kiering and bleaching, then the method blended using staple in bulk It spins on cotton spinning, middle long spinning, silk spinning or wool spinning equipment.
Flax and other fiber blends, can be improved the spinnability and weavability of flax fiber, can also keep flax On the basis of Fabric Style feature, improve the performance of sodolin, such as elasticity, wrinkle resistance.
Currently, the pure flax yarn line in market has beyber yarn and two kinds of bleached yarn, substantially still using the long bast fibre spinning spinning of wet process Difference into both (this is because the long bast fibre spinning resultant yarn of wet process is fewer than tow system Yarn filoplume, any surface finish) is, in rove Kiering process, for beyber yarn without bleaching, resultant yarn keeps the original light brown of flax (Asia of different sources, kind, batch Numb color has different).
The long bast fibre spinning linen of wet process have distinct plucked feature (yarn unevenness 30% or more, thickness section diameter Than at 8 times or more), it assigns its fabric distinctive rough style, there is distinct identifiability.
Section coloured yarn is a kind of FANCY YARNS of classics, it is characterized in that different yarn sections are different face on length of yarn direction Color, an one thread there are two types of or more color, not homochromy section spaced but different in size (color section is non-isometric).
Traditional section coloured yarn production technology is the segmental dyeing (red ink paste used for seals) of yarn, makes yarn that difference be presented along its length The segment of color, due to technology complexity, segment Color control is difficult, has tended to now superseded.Present section coloured yarn mainly uses Color spins (spinning again after stock-dye) technology, by the transformation to drafting systems such as drawing frame, spinning frames, controls different colours yarn The feed quantity and drafting multiple of item make final resultant yarn that section color effect be presented, and gained section coloured yarn line can be a section color bunchy yarn, can also To be equal line densities section coloured yarn.Particular technique is as follows:
Section colour bar method: control device is fed by the upper installation in grilling drawing frame or common drawing frame, interruption feeding is not With the colored strip of color, section colour bar is made, then form section coloured yarn through draw twisting, is mainly used for wool type fiber section coloured yarn Spinning, gained yarn line segment coloured silk fragment length are long.
Colored rove method: being respectively prepared rove for the fiber of different colours, in ring spindle yarn of the drafting system by transformation Spinning forms section coloured yarn on machine.The rove of different colours keeps a fixed spacing to feed draft area, and feeding position can be identical Can different (rear rollers feeding or middle roller feedings), the feeding of different colours rove includes whether feeding and feeding speed list Solely control, (resultant yarn is quantitative constant) that can be coupling are also possible to non-coupled (resultant yarn quantitatively changes, ring effect), each face Color rove, by collector set, is twisted together into the yarn with section color effect after front roller nip output after drawing-off.It is raw at present The mainly latter technique applied in production.
The section coloured yarn applied in industry, external appearance characteristic and technological core be on the length direction of yarn, different face Randomness, the irregularities of dyed yarn section distribution, i.e., each color yarn segment length are short different and irregular.
Hollow ingot wraping spinning is a kind of technology of special production composite construction yarn, and technical characteristic is with an one thread On (filament yarn or spun yarn) spiral wound to another one thread (filament yarn or spun yarn), being formed, there is looping structure (to twine Twist) complex yarn.
The core of hollow ingot wraping spinning technology is hollow ingot wrapping technique, and the technology is in parallel spinning technique (machine), sky Heart spidle type, which is twisted thread on technology (machine), also application, the former is used to spin short fine fasciated yarn, and (heart yarn is the short fine palpus after drawing-off Item), the latter is exclusively used in spinning flame, and (heart yarn is for the staple fiber yarn or staple fiber yarn and long filament after drawing-off and after closing Filament short-fiber composite construction sliver).Currently, in industry it is used spinning fasciated yarn special equipment be hollow ingot embedding spinning machine, (referred to as " machine packet " is the address for air network cladding to also known as mechanical coating machine, and air network coats in the industry As " sky packet ").
Hollow ingot wraping spinning is divided into single packet (looping) and double-contracting (looping twice).
Double-contracting spinning is that looping is primary again on the basis of Dan Bao, i.e., installs a set of hollow ingot-aluminium ingot pipe additional again in equipment System carries out secondary looping by another motor drive.In order to obtain stable yarn texture, the winding screw of secondary looping Line direction (orientation) can be identical with a looping, may be reversed, that is, forms so-called " X " to cladding, realize that three components are compound, Or obtain better covered effect.
Currently, hollow ingot wraping spinning method is mainly used for the production of elastic fasciated yarn, (this is that fasciated yarn spinning equipment is set The original intention of meter, core filaments feeding part are designed by elastic core filaments feeding), i.e., using the polyurethane elastic filament of different line densities as core Silk, with the long filaments such as terylene, polyamide fibre or various short fiber yarns for outer fasciated yarn, to apply the elastic force core filaments of certain drafting multiple into Elastic force fasciated yarn is made in row looping, for woven and knitted elastic fabric production.
Chinese patent CN201220494508.8 discloses a kind of numb fasciated yarn, has specifically opened a kind of sack and has twined Yarn selects flaxen fiber long filament as inner core material, by wraping spinning technology in the surface of flaxen fiber long filament spirally looping Silk fiber.
Chinese patent CN201220718329.8 discloses a kind of compound fasciated yarn of knitting linen blend, by heart yarn and two Root fasciated yarn composition, the fasciated yarn spiral wound on the heart yarn, and respectively according to s and z twist direction be wrapped in it is described On heart yarn, the fasciated yarn is that can dye long filament, and the fineness ratio of the heart yarn and fasciated yarn is 3:1-4:1.
Chinese patent CN201310338357.6 discloses a kind of Itch-preventing hemp core wrap yarn and its processing method, specific public Having opened a kind of Itch-preventing hemp core wrap yarn and its processing method, the wrap yarn includes heart yarn and outer fasciated yarn, wherein the heart yarn For crudefiber crop yarn, the outer fasciated yarn is spun yarn or filament yarn, and the spun yarn or filament yarn are wrapped in outside crudefiber crop yarn simultaneously Envelope crudefiber crop yarn;Its processing method includes: heart yarn unwinding, draws four step of yarn, looping and winding shaping.
Chinese patent CN201621446891.4 discloses a kind of wrap yarn for reducing filoplume, the packet on the outside of yarn core and yarn core Coating, the yarn core are staple fiber yarn core, and the clad includes the first long filament and the second long filament, first long filament Opposite direction twisting is carried out with the second long filament and is coated on the outside of staple fiber yarn core in the shape of a spiral.
Chinese patent CN201711398877.0 discloses a kind of linen thread and yarn, and discloses a kind of linen thread and yarn, including Yarn body, yarn body include yarn core, and stretch yarn, flax fiber and single, the appearance of yarn core are respectively arranged with inside yarn core Face is wound with flax yarn layer, and the outer surface of flax yarn layer is wound with elastic filament layer, and the outer surface of elastic filament layer is fixedly connected with table Skin yarn, the outer surface of yarn body, which is respectively screw to be twisted together, polyester fiber, viscose rayon, cellucotton and fire-retardant cotton thread.
Chinese patent CN201510407962.3 discloses the fiber crops forging fabric that a kind of fiber crops wash twisted yarn and its preparation, which washs Twisted yarn is twisted by linen thread and yarn and fine-denier polyester yarns, in which: the content of flax is in the linen thread and yarn 100%, the number of the linen thread and yarn is 28-36Nm, and twist TPI is 9-13.5;The fine-denier polyester yarns are that 30D/12F is semi-dull Low elastic polyester filament;The twist TPI that the fiber crops wash twisted yarn is 7-13.
It is above correlation skill patent using " looping (hollow ingot looping) " and " and twist (after doubling winder and conjunction, two-for-one twister Twisting) " processing method, Compound Machining is carried out to linen, reaches the mesh for improving linen machinability and fabric product performance 's.
Summary of the invention
The present invention is using different colours threads and closes the outer fasciated yarn of the section coloured silk effect principle of twisting, hollow ingot fasciated yarn spinning The specific false twist effect of heart yarn and its unstable principle of the twist, the twist are uneven on plucked yarn when to heart yarn winding The false twisting disturbance theory of Distribution Principle and the heart yarn twist specifically discloses a kind of polychrome using hollow ingot wraping spinning technology The color flax of section, chemical-fibres filaments enveloped composite yarn processing method and composite yarn.
The present invention provides the processing method of a kind of Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn, and its step are as follows:
1) using linen and the filament yarn of at least two colors as heart yarn, respectively from respective by the way of passiveness feeding Heart yarn cylinder on unwind, and merge the filament yarn of linen and at least two colors to form multicore yarn, wherein different colours Filament yarn is separately positioned on the both ends of linen;
2) after multicore yarn passes through spring tensioner, and it is fed to hollow ingot, and be arranged in loop with winding in sky The outer fasciated yarn outside aluminium ingot pipe on heart ingot merges at congregation twizzle, after wherein multicore yarn passes through spring tensioner Feed the angle having between the route of hollow ingot and the central tube axis of hollow ingot less than 90 °;
3) aluminium ingot pipe revolution at a high speed together with hollow ingot drives outer fasciated yarn revolution at a high speed, outer fasciated yarn is wound into more On heart yarn, and multicore yarn is located at the grip hold arc of the surface formation certain angle of bushing pipe under central tube, and bushing pipe is in axis under central tube It is upwardly formed the friction to multicore yarn, false twisting perturbed force;
4) point and outer fasciated yarn are wound from the outsourcing between the unwinding point on aluminium ingot pipe to multicore yarn in outer fasciated yarn It twines yarn and forms air ring, and generate tension;
5) multicore yarn under tension, is acted on by torsional moment at winding point and generates torsion turn, and make Twin-core yarn generates section color effect under the action of false twisting turn;
6) simultaneously under the action of outer fasciated yarn tension fluctuation and heart yarn tension fluctuation, the significant plucked feature of linen And under hollow ingot bottom center pipe bushing pipe false twisting perturbed force so that section color effect shows as irregularities;
7) and under the looping of outer fasciated yarn, the color effect of irregular section of fixed multicore yarn, obtaining has irregular section of coloured silk Multicolor segments coloured silk flax of effect, chemical-fibres filaments enveloped composite yarn.
In step 2, tandem twizzle is installed between spring tensioner and hollow ingot, and lead across tandem The angle less than 90 degree is formed between the multicore yarn of yarn hook and the axis of central tube.
In step 2, it is arranged telescopic scroll tube in the central tube lower end of hollow ingot, makes to be come out by spring tensioner The path of multicore yarn feeding central tube there is angle less than 90 degree.
After making the yarn of two or more different colours and being combined, and doubling is twisted, makes yarn around it Body axis revolution, so that each one thread twist/twirl being arranged parallel to each other originally is together into cylindrical yarn body, doubling is each Occur relative torsion between section, every one thread helically line morphology, so that the torsional variation of each one thread relative position, by yarn Line appearance along its length on be divided into spaced color color lump.
The processing method further includes resultant yarn color adjustment method, and resultant yarn color adjustment method is as follows:
One, the section coloured silk Character adjustment of composite yarn is realized by adjusting the twist size of heart yarn and irregular degree;
Two, by changing the color configuration of the filament yarn as heart yarn and the line density reality of linen, color polyester yarn Existing composite yarn extends adjustment.
A kind of composite yarn that the processing method using above-mentioned Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn is processed, Filament yarn including linen and Duo Gen different colours simultaneously closes the multicore yarn with section color effect that twisting is formed, and in multicore yarn The outer fasciated yarn of outside looping, the outer fasciated yarn are colourless, transparent long filament, and generate multicore yarn in outer fasciated yarn looping Irregular section color effect, and be outsourced and twine yarn looping and fix.
A kind of equipment that the processing method for above-mentioned Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn is processed, packet Several heart yarn cylinders are included, each heart yarn cylinder upper end is correspondingly provided with twizzle, and the point of intersection for being located at each twizzle central ray is set Spring tensioner is set, the exit of spring tensioner is equipped with hollow ingot, the spring tensioner and hollow ingot Between be equipped with make heart yarn feeding hollow ingot path and hollow ingot central tube between formed less than 90 degree of angles eccentric stiffener, Aluminium ingot pipe of the outer loop setting of the hollow ingot for the outer fasciated yarn of looping, and the aluminium ingot pipe is linked with hollow ingot, institute The upper end setting congregation twizzle of hollow ingot is stated, yarn forming device is arranged in the upper end of the congregation twizzle.
The eccentric stiffener is tandem twizzle comprising several twizzles arranged side by side.
The eccentric stiffener is telescopic scroll tube, and the telescopic scroll tube can be sleeved on central tube lower end, the set The diameter of bore of cartridge type scroll tube is consistent with the diameter of bore of lower bushing pipe of central tube lower end, and its lower end surface is that arc is bent Face, and several cuttings are set by center radioactivity of inner hole.
Thread tube is arranged in the hollow ingot line segment, and translatable formula twizzle is arranged between the two, by that can put down described in translation The yarn poteye of shifting formula twizzle makes heart yarn moving line deviate hollow ingot center line.
Beneficial effects of the present invention:
(1) improve the wrinkle resistance of sodolin.Because flax fiber is firm, poor flexibility, the fabric woven by linen is crease-resistant Property it is poor, be very easy to corrugation, influence the presentation quality and wearability of fabric.By by linen thread and yarn and chemical-fibres filaments yarn (its Middle at least one be Polyester Yarns) Compound Machining, the wrinkle resistance of fabric can be improved under the premise of keeping sodolin style.
(2) Yarn filoplume is reduced, filoplume regeneration is reduced, improves weavability.And close and processed with looping, it can be reduced linen Regeneration in filoplume and weaving preparation process, keeps fabric surface bright and clean, reduces the prodding and itching feeling of fabric.
(3) it assigns yarn and its fabric Multicolor segments coloured silk appearance, fabric exempts to contaminate.By adding with the compound of colored chemical fibre filament yarn Work, can assign linen thread and yarn and its fabric color appearance, and fabric product no longer carries out dyeing or stamp processing, it is only necessary to necessary whole Reason processing can save the water power consumption and dyestuff consumption of dyeing and printing process, substantially reduce the pollution of product.
(4) exempt from slurry weaving.By compound with chemical-fibres filaments yarn, the strength and wearability of linen can be improved, improve yarn Line strength, reduce strength irregularity, thus realize linen exempt from slurry weaving, save sizing operation slurry, auxiliary agent consumption and The consumption of water power vapour.
Detailed description of the invention
Fig. 1 is 3 different colours yarns and closes the section color effect schematic diagram for adding and generating after weak twist.
Fig. 2 (1) (2) (3) (4) is that false twist effect principle when the outer fasciated yarn of hollow ingot fasciated yarn spinning winds heart yarn is illustrated Figure.
Fig. 3 is eccentric feeding schematic diagram of the heart yarn in hollow ingot central tube lower end.
Fig. 4 is that tandem twizzle adjusts heart yarn feeding position schematic diagram.
Fig. 5 is that parallel-moving type twizzle adjusts heart yarn feeding position schematic diagram.
Fig. 6 (1) is telescopic scroll tube structural schematic diagram.
Fig. 6 (2) is scheme of installation of the telescopic scroll tube in hollow ingot central tube lower end.
Fig. 7 is three core flax section coloured yarn spinning technique schematic diagrams (tandem twizzle controls heart yarn false twisting).
Fig. 8 is three core flax section coloured yarn spinning technique schematic diagrams (telescopic scroll tube controls heart yarn false twisting).
Fig. 9 is four core flax section coloured yarn spinning technique schematic diagrams (tandem twizzle controls heart yarn false twisting).
Figure 10 is flax heart yarn black board draft.
Figure 11 is the partial enlargement diagram of Figure 10.
Figure 12 is the black board draft of red, the blue terylene section coloured silk fasciated yarn of flax -70D.
Figure 13 is the partial enlargement diagram of Figure 12.
Figure 14 is the black board draft of red, blue, the green terylene section coloured silk fasciated yarn of flax -150D.
Figure 15 is the partial enlargement diagram of Figure 14.
Specific embodiment
Embodiments of the present invention is further illustrated with reference to the accompanying drawing:
With the long bast fibre spinning creamed linen yarn of wet process, two and the above colored filaments yarn yarn and it is combined into heart yarn, utilization is hollow The distinctive heart yarn false twisting of ingot wraping spinning-looping concretion technology feature is distributed in linen plucked, outer using the heart yarn twist Wave phenomenon under fasciated yarn tension fluctuation and heart yarn tension fluctuation collective effect, and using heart yarn in hollow ingot central tube lower end The grip hold arc of formation generates false twist effect, in conjunction with using tandem twizzle or the telescopic scroll tube active accommodation false twisting of notch type Effect aggravates irregular variation and the Twist Unevenness of the heart yarn twist, so that heart yarn is generated irregular section of color effect, and use nothing The outer fasciated yarn of the good long filament of color, transparency (monofilament or low radical multifilament) carries out looping consolidation, and obtaining has Multicolor segments coloured silk feature Flax composite yarn.
When two and the above different colours yarn (filament yarn or spun yarn) and after be combined, if carried out to doubling Twisting (turns round yarn around itself axis), and each one thread twist (twisted) being arranged parallel to each other originally becomes circle together Cylindricality yarn body, occurs relative torsion between each section of doubling, every one thread helically line morphology.It is this because twisting caused by each The torsional variation of yarn relative position makes yarn appearance that section color effect be presented, i.e., the torsional variation of each one thread relative position will Yarn appearance along its length on be divided into spaced color color lump.When doubling institute amount of twist smaller (adding weak twist), The phase secondary color segment length that each one thread relative torsion is formed is long, due to yarn diameter very little, in the vision of human eye, yarn appearance It tends to assume that as section color effect.After Fig. 1 show 3 different colours yarns and conjunction plus weak twist, the schematic diagram of section color effect is generated.
Fig. 2 (1) show hollow ingot looping resultant yarn action principle schematic diagram.Outer fasciated yarn is turned round with hollow ingot, to heart yarn Zigzag shape winding is carried out, is formed fasciated yarn (resultant yarn).When outer fasciated yarn is wound heart yarn, outer fasciated yarn has certain Tension, tension is mainly produced from outer fasciated yarn in the unwinding point on aluminium ingot pipe and to yarn section (referred to as gas between heart yarn looping point Enclose section) gravity and with air drag caused by hollow ingot revolution at a high speed, centrifugal force, coriolis force, (yarn both does circumference Revolution, also axially moves, the air ring section yarn there are Corioli inertial force, between similar Twizzle for ring throstle and wire loop Stress) etc..It is edge shown in action direction such as Fig. 2 (2) of the tension T of outer fasciated yarn at winding point of the outer fasciated yarn to heart yarn Outer fasciated yarn is away from winding point direction.According to mechanics analysis theory, the outer looping yarn tension T at point is wound, can be decomposed into Be parallel to heart yarn and component T1 and T2 perpendicular to heart yarn both direction, the effect of T1 be make the winding screw line of outer fasciated yarn to The opposite direction of the heart yarn direction of motion moves, i.e. winding downwards;The component T2 of vertical direction is tangentially acted on along heart yarn circular cross-section On heart yarn, as shown in Fig. 2 (3), on the one hand function and effect are that heart yarn is pulled away to axial location, are on the one hand to generate torsional moment (product of tangential force T2 and heart yarn radius r) turns round heart yarn axially around it, even if heart yarn torsion, twisting.
It is theoretical according to twisting, when sliver both ends are held, centre is twisted, as false twisting.False twisting acts on winding point two sides, It will generate that quantity is identical, contrary turn, as shown in Fig. 2 (4).In winding or more, the orientation of false twisting and outer fasciated yarn It is consistent to the winding direction of heart yarn, it in the case of as shown in the figure, is twisted for Z, in winding point hereinafter, being twisted for S.Winding or less is false Twist generate turn, so that heart yarn is twisted, i.e., winding point at, when outer fasciated yarn is wound heart yarn, heart yarn because False twisting effect has been applied certain turn.It is theoretical according to false twisting, added turn on heart yarn, by (the false twisting effect of winding point Point) after, it can be offset by added reversed turn, but heart yarn has been outsourced and twines yarn and wound at this time, added turn therefore be consolidated thereon Knot, the false twisting turn of winding or more, which acts on, to be completed on the yarn of looping, and effect is to make the looping twist solution of fasciated yarn Twist, and cannot offset heart yarn reversed turn (if the looping without outer fasciated yarn consolidates, the heart yarn twirl of the following generation of winding point Return can by winding point after be wound point or more generation opposite direction turn offset, it is non-twist on final heart yarn).Backtwisting effect Leading to resultant yarn, (looping gyratory directions are not consistent with false twisting gyratory directions, a part of looping revolution revolution for the theoretical twist in looping It is balanced out by false twisting revolution revolution).That is, being generated on heart yarn due to the action character of wraping spinning by outer looping yarn tension False twist effect, certain turn is kept when can make heart yarn by looping, and be outsourced and twine yarn looping and fix, cannot offset.
How much is turn added by heart yarn, and the size and heart yarn for the torsional moment that the tension depending on outer fasciated yarn generates are antitorque just The size of degree (yarn resists the ability of torsional deflection, is the product of the polar moment of inertia of fiber cutting elasticity modulus and fiber interface). In the identical situation of other conditions, outer looping yarn tension is bigger, and the torsional moment of generation is bigger, and heart yarn torque-turns are more, core Yarn turn is more;Heart yarn torsional rigidity is big, and heart yarn torsion is difficult, and added turn is few.
Outer looping yarn tension size depends primarily on the length of outer fasciated yarn section (air ring section) between unwinding point and looping point And yarn linear density, the outer looping yarn length of air ring section is longer, and yarn linear density is bigger, and the outer fasciated yarn gravity of air ring section is bigger, high Centrifugal force, air drag, the coriolis force of speed revolution are also bigger, and the tension of outer fasciated yarn is bigger at looping point.
The size of heart yarn torsional rigidity depends primarily on the torsional rigidity of yarn itself and the size of heart yarn tension, right In same heart yarn, tension is bigger, and as the thread material of viscoelastic material, heart yarn shows firmer, it is difficult to reverse.Heart yarn sheet The torsional rigidity of body, then it is related with the factors such as thread material, line density, the twist, yarn texture, by stiff fibers (such as fiber crops Fiber) yarn that is spun into and line density is big, the twist is big and the close yarn of yarn texture (such as Compact-spun Yarn), resist It is big to turn round rigidity, it is difficult to reverse.In theory, heart yarn diameter is bigger, and the torsional moment of outer fasciated yarn is also bigger, but heart yarn is straight Diameter is big, and torsional rigidity is also bigger, causes reel-twist difficult.
Winding or less heart yarn institute amount of twist (number of twists on unit length yarn) size, according to permanent twist theorem, Then related with the movement velocity of heart yarn, the heart yarn twist is equal to the ratio between revolving speed and heart yarn movement velocity of heart yarn false twisting.Due to twining Around at outer fasciated yarn tension continuous action make on heart yarn its generate torsion turn, heart yarn false twisting revolving speed is heart yarn false twisting Torque overcomes yarn torsional rigidity to be allowed to generate the number of twists of torsion, when the number of twists of heart yarn torsion is constant, institute's amount of twist The movement velocity of heart yarn is then depended on, heart yarn movement velocity is faster, and the twist of winding or less heart yarn is with regard to smaller.
From the point of view of from actual production process, the heart yarn twist is smaller.The reason is that on the one hand, spinning Cheng Zhong, in order to avoid heart yarn drawing is deviated to bending by the effect of outer looping yarn tension, winding effect be cannot proceed normally, general heart yarn Apply biggish tension, heart yarn is caused to show biggish bending stiffness;On the other hand, since the tension of outer fasciated yarn is main Centrifugal force, air drag, the coriolis force etc. for resulting from the outer fasciated yarn of aforementioned air ring section, on absolute figure and less, thus it is false It is smaller to twist torsional moment absolute value, after heart yarn twists in addition, torsional rigidity also can be with heart yarn windup-degree (circle number) Increase and increase, also make heart yarn torsion it is more and more difficult.
In view of the heart yarn weak twist effect of hollow ingot fasciated yarn spinning, when the threads composition heart yarn using two kinds and the above color And when closing feeding, the false twisting of outer looping yarn tension is acted on, and heart yarn will be made to generate section coloured silk effect.
As previously mentioned, the false twist effect that outer looping yarn tension generates depends on the tension and yarn of outer fasciated yarn at winding point Torsional rigidity.If it is all with both related all factors be all it is constant, heart yarn will keep the stable twist, i.e., The turn of even distribution.But in actual production, following factor results in the unstability of heart yarn false twisting effect, so that heart yarn turn With unstability, irregular fluctuation.First, heart yarn tension is unstable.Due to mechanical vibration, heart yarn unwinding tension Stick-slip effect (yarn is visco-elastic body) when the parts such as unstable and heart yarn and lever jack rub, so that heart yarn tension It is to fluctuate in a certain range rather than constant, and the size of tension is an important factor for influencing heart yarn torsional rigidity, The unstability of power results in the unstable of heart yarn false twisting turn.Second, outer looping yarn tension is unstable.Due to outer fasciated yarn Unwinding point on aluminium ingot pipe is not fixed, as the high and low position of unwinding point (unwinds point along aluminium when unwinding warp layer Change from top to bottom, from bottom to top between the axial two side disks of bolster) and unwinding diameter (in entire spinning process, aluminium Outer fasciated yarn on bolster is unwound from full packages to blank pipe, every unwinding warp layer, and unwinding diameter reduces an outer looping yarn diameter) Change and constantly changing, two factors act on superposition, and outer fasciated yarn is caused to unwind the length for extremely winding point yarn section also just It is constantly changing, is determining the yarn gravity of Tensity size, air drag, centrifugal force, coriolis force etc. also just with the yarn section The variation of length and change so that the size of outer looping yarn tension is in continuous fluctuation.The complicated fluctuation of outer looping yarn tension, leads The fluctuation for causing false twisting torque, causes the unstable of heart yarn turn.Heart yarn tension is unstable unstable with outer looping yarn tension, and two Person's effect is overlapping, and heart yarn false twisting turn is made to show a degree of irregularities.Heart yarn tension and outer looping yarn tension are not Degree of stability determines the irregular degree of heart yarn false twist effect.
This is also just determined, when using the multicore yarn of two kinds and the above color, the section color effect of generation has certain journey The irregularities of degree.It is color outer can to assign composite yarn section after outer fasciated yarn looping is fixed for this irregular section of color effect of heart yarn It sees.
But when larger (and it is more to close heart yarn radical) of heart yarn line density or certain root heart yarn torsional rigidity itself are larger When, the irregular degree that heart yarn tension causes the heart yarn twist to be distributed with the fluctuation of outer looping yarn tension can be declined, and be needed at this time The technical measures taken the initiative interfere the distribution of the heart yarn twist.
As described in false twist effect principle when fasciated yarn winds heart yarn outside hollow ingot fasciated yarn spinning, outer looping yarn tension is being twined Around generate torsional moment be heart yarn generated turn (or twist) under outer fasciated yarn tension force effect determinant it One.Torsional moment is equal to the product of outer looping yarn tension and heart yarn radius, it is assumed that and outer looping yarn tension is constant, and heart yarn radius is bigger, The torsional moment that outer looping yarn tension generates at winding point is bigger.The position of torsional moment twines heart yarn in outer fasciated yarn It around Dian Chu, but can be transmitted along heart yarn to feeding point direction, winding point heart yarn below is made to generate reel-twist, torsional moment Transmitting downwards shows as turn from downward (feeding point to the heart yarn) transmitting of winding point.If heart yarn is isodiametric, even thickness , although heart yarn diameter increases since the increase of heart yarn diameter causes torsional moment to increase, under equal conditions, heart yarn it is antitorque Rigidity also will increase (yarn is thicker, and the ability for resisting torsion increases), and heart yarn institute amount of twist is to increase or reduce, and depend on turning round Torque increases and which heart yarn torsional rigidity increases and occupy an leading position, if the former occupies an leading position, the heart yarn twist can increase Greatly, if the latter plays a leading role, the heart yarn twist reduces.
However, the segment having is thick if heart yarn itself is plucked, some yarn sections are thin, then can generate different As a result.
Theoretical according to twisting, in Yarn twisting, if yarn itself is plucked, torsional moment is in twisted yarn section On transmitting, leading to turn (twist) is uneven distribution on length of yarn between feeding point and twisting point: yarn is adding It twists point to be acted on by twisting, moment of twist insertion feeds point transmitting from twisting point to yarn, and the thin yarn section of diameter, torsional rigidity is small, institute It twists back more;The thick yarn section of diameter, torsional rigidity is big, and added turn is few.
Therefore, if heart yarn is plucked, the torsional moment caused by the outer looping yarn tension is in winding point effect When on heart yarn, overcome heart yarn torsional rigidity that heart yarn is made to generate turn, and to (downward) transmitting in heart yarn feeding direction, turn can be more It mostly is distributed in the thin segment of diameter, the thick local turn of diameter is few.The plucked rate of heart yarn bigger (major diameter and minor diameter Difference is bigger), the distribution of heart yarn turn is more irregular, and Twist Unevenness is bigger.
For the heart yarn of plucked, when the big slubbing of diameter is by winding point, yarn diameter increases, it is assumed that appearance packet Twine that yarn tension is constant, the torsional moment that outer looping yarn tension generates increases because acting on the increase of square.Although in twisting point (winding Point) at heart yarn due to diameter increase cause torsional rigidity to increase, added turn may not increase, but transmitted when Yarn twisting be turn round Torque, when the torsional moment of increase feeds point transmitting to heart yarn from winding point, the minor diameter yarn section that torsional rigidity can be made small is produced The torsion of raw more multi-turn number, in addition more turns.That is, for the heart yarn of plucked, the torsional moment of increase can make heart yarn In addition more turns, the heart yarn twist increases, but is more distributed at the details of heart yarn minor diameter due to turn, twist irregularity It further increases.
To sum up, when at major diameter slubbing by winding point, outer looping yarn tension is made for the heart yarn of plucked Increased with the heart yarn torsional moment of generation because acting on the increase of square (heart yarn radius), outer looping yarn tension makes heart yarn in winding point Locate the torsion generated, turning circle number increases, heart yarn institute's amount of twist increases, although at winding point at heart yarn major diameter slubbing turn because Torsional rigidity is larger to be increased, and turn is more generated, is distributed at the small heart yarn minor diameter of torsional rigidity, lead to the heart yarn twist Unevenly distributed rate increases.
Similarly, when the minor diameter details thinner than normal diameter is by winding point, outer looping yarn tension generates torsional moment Reduce due to acting on square and reducing, under heart yarn reverse lay moment loading, the heart yarn twist can integrally reduce (reduction of turn total amount).
As a result, if forming twin-core yarn using the yarn of two different colours, and wherein at least one has significantly slightly Thin irregular feature, heart yarn can add weak twist to generate section color effect because outer looping yarn tension acts on, and can be because of the plucked of heart yarn Make the section color effect of heart yarn that erratic behavior be presented (this is exactly required by section coloured yarn).Plucked difference is bigger, and nothing is got in distribution Rule, heart yarn twist irregularity is bigger, and the erratic behavior of section coloured silk is more obvious.The long bast fibre spinning linen of wet process is that thickness is not in common yarn One of even most significant yarn of feature uses linen as one of heart yarn, the uneven twist effect of heart yarn may be implemented.
As previously mentioned, tension force effect of the heart yarn because of outer fasciated yarn, can keep certain twirl when by outer fasciated yarn looping Degree, and be able to be fixed in resultant yarn yarn body by the winding of outer fasciated yarn.The fluctuation of heart yarn and outer looping yarn tension, twists heart yarn Degree shows a degree of irregularities.Using the principle, the multicore yarn production of two kinds and above color yarn composition can be made Raw irregular section of color effect.It can also be shown using the yarn of plucked, such as long bast fibre spinning linen of wet process as one of heart yarn Write the regularity for destroying the distribution of the heart yarn twist, the irregularity of increased core twist per unit distribution.But to assign heart yarn Multicolor segments coloured silk effect Fruit needs to use threads and cooperates as heart yarn, and and close effect and can weaken the plucked of heart yarn, mostly with heart yarn and conjunction Heart yarn tension fluctuation and the fluctuation of outer looping yarn tension can be weakened to the interference effect of heart yarn twist distributing homogeneity.At this point, to It is further exacerbated by the fluctuation of the heart yarn twist, section color effect is made to show better randomness (external appearance characteristic of section coloured yarn and processing Technical requirements are on the length direction of yarn, randomness, the irregularities of the distribution of different colours yarn section.), it can be used pair The heart yarn twist is distributed the method interfered.Interfere the distributing homogeneity of heart yarn twisting turn, the method that false twisting can be used.
In the movement of heart yarn from bottom to top, if period is acted on by false twisting, on the final twist of heart yarn without influence.But such as Fruit heart yarn by two or more yarn and close, because yarn is viscous elastomer, after false twisting acts on, false twisting turn is simultaneously It cannot sufficiently eliminate, but the false twisting turn of irregular even distribution can be remained in different fragments, i.e., the turn in different fragments is twisted To on the contrary, Z-direction turn is equal to turn quantity with S.These are distributed in the turn of the different orientations in heart yarn different fragments, will be with The heart yarn turn superposition that outer looping tension force effect generates, destroys the distributing homogeneity of heart yarn turn, aggravates the heart yarn twist Irregularities.False twist effect is stronger, and false twisting residual turn is bigger in each segment of heart yarn, does to heart yarn turn distributing homogeneity Disturb bigger, the irregularities of the heart yarn twist are more obvious, Twist Unevenness is bigger.
As shown in Figure 7 and Figure 8, the present invention provides the processing of a kind of Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn Method, its step are as follows:
1) using linen and the filament yarn of at least two colors as heart yarn, respectively from respective by the way of passiveness feeding Heart yarn cylinder on unwind, and merge the filament yarn of linen and at least two colors to form multicore yarn, wherein different colours Filament yarn is separately positioned on the both ends of linen;
Three heart yarns unwind that (twizzle 5 must be located at bobbin center from heart yarn cylinder respectively under the guidance of twizzle 5 Right above axis, to guarantee that yarn is smoothly unwound, twizzle is enclosed type, imperforation, to avoid yarn due to shaking from opening Place is detached from twizzle, influences the normal unwinding of yarn), wherein 2 heart yarn cylinder of linen is centrally located, colored filaments yarn 1,3 Heart yarn cylinder is located at linen heart yarn cylinder two sides, the purpose for the arrangement is that when in order to guarantee that heart yarn is acted on by false twisting, two colours Filament yarn is distributed in linen two sides, guarantees section color effect, avoids two root long gauzes from shifting to an earlier date adhesion, influence a section color effect.
2) after multicore yarn passes through spring tensioner, and it is fed to hollow ingot, and be arranged in loop with winding in sky The outer fasciated yarn outside aluminium ingot pipe on heart ingot merges at congregation twizzle, after wherein multicore yarn passes through spring tensioner Feed the angle having between the route of hollow ingot and the central tube axis of hollow ingot less than 90 °;
It wherein may is that multicore yarn enters the rear porcelain eye of spring tensioner 6, then passed through between two panels tension piece, It is pierced by from preceding yarn poteye.Spring applies certain pressure to tension piece, guarantees that the certain feeding tension of heart yarn, heart yarn pass through string The porcelain eye of connection formula twizzle 7, heart yarn enter along the central tube of trailer of hollow ingot 8, and tandem twizzle is not in the axis of central tube On, but deviate certain distance, keep heart yarn at a certain angle with central tube, heart yarn passes through different on tandem twizzle lead Yarn porcelain eye, guide route change, and predetermined curvature of the heart yarn on lower bushing pipe is also just different, and friction false twist effect is just not yet Together;
Or multicore yarn enters the rear porcelain eye of spring tensioner 6, then passes through between two panels tension piece, from preceding guide Porcelain eye is pierced by.Spring applies certain pressure to tension piece, guarantees the certain feeding tension of heart yarn, passes through telescopic scroll tube 17 The mode of adjustment heart yarn feeding position realizes the bias between the feeding route of heart yarn and central tube;
3) aluminium ingot pipe revolution at a high speed together with hollow ingot drives outer fasciated yarn revolution at a high speed, outer fasciated yarn is wound into more On heart yarn, and multicore yarn is located at the grip hold arc of the surface formation certain angle of bushing pipe under central tube, and bushing pipe is in axis under central tube It is upwardly formed the friction to multicore yarn, false twisting perturbed force;
Heart yarn passes through central tube and draws from upper end, merges at congregation twizzle 11 with outer fasciated yarn.Aluminium ingot pipe loop exists It on hollow ingot, and is fixed on hollow ingot with lower holder and spindle top, turns round it together with hollow ingot, hollow ingot lower end passes through The spindle band frictional drive of motor drive.Outer fasciated yarn is wound on aluminium ingot pipe 9, outer fasciated yarn is drawn from aluminium ingot pipe, is being merged It merges at twizzle with heart yarn, aluminium ingot pipe revolution at a high speed together with hollow ingot drives outer fasciated yarn revolution at a high speed, by outer fasciated yarn It is wound on heart yarn, while heart yarn forms the grip hold arc of certain angle in lower liner surface, bushing pipe is returned with hollow ingot high speed instantly When turning, i.e., friction is formed to heart yarn along axial direction, false twisting acts on;
4) point and outer fasciated yarn are wound from the outer looping between the unwinding point on aluminium ingot pipe to heart yarn in outer fasciated yarn Yarn yarn gravity, the centrifugal force of revolution at a high speed, the air drag, coriolis force the effects of under the action of power, forms air ring 10, and Generate certain tension;
5) due to the tension force effect of outer fasciated yarn, so that heart yarn is acted on by torsional moment at winding point and generates torsion Turn, multicore yarn generate section color effect under the action of false twisting turn, and due to the fluctuation of outer looping yarn tension, heart yarn tensile wave Heart yarn caused by the false twisting of bushing pipe disturbs under dynamic, the significant plucked feature of linen and hollow ingot bottom center pipe is twisted not It is even, so that a section color effect is shown as irregularities;
6) simultaneously under the action of outer fasciated yarn tension fluctuation and heart yarn tension fluctuation, the significant plucked feature of linen And under hollow ingot bottom center pipe bushing pipe false twisting perturbed force so that section color effect shows as irregularities;
7) and under the looping of outer fasciated yarn, the color effect of irregular section of fixed multicore yarn, obtaining has irregular section of coloured silk Multicolor segments coloured silk flax of effect, chemical-fibres filaments enveloped composite yarn,
Resultant yarn is guided through delivery roller 12 and is exported, the guiding through lever jack 13, the guide porcelain on traverse guide 14 Eye is wound up into the cylinder yarn package 16 for being wound 15 frictional drive of roller under the guidance of traverse guide in a manner of cross winding, It is wound into yarn bobbin.
And when being directed to 3 colored filaments yarns, three colored filaments yarns it is as shown in Figure 9 with the feeding mode of linen: two Root long gauze 1,3 is arranged in 2 two sides of linen, and third root long gauze 4 is fed from another row, after unwinding from bobbin, passes through cylinder The closing twizzle 5 of sub- top, the twizzle 5 being then passed through above flax yarn bobbin are fed forward with linen 2, together in bullet After spring formula tensioner 6 at porcelain eye with other two root longs gauzes and close.The purpose for the arrangement is that position when controlling each heart yarn and closing Configuration is set, when heart yarn is twisted together together by central tube bottom end false twisting effect, three root long gauzes are distributed to the greatest extent around linen May uniformly three root long gauze stick to each others be avoided, the section color effect of final resultant yarn is influenced.Multicore yarn enters spring tension dress 6 rear porcelain eye is set, then is passed through between two panels tension piece, is pierced by from preceding yarn poteye.Spring applies certain pressure to tension piece Power guarantees that the certain feeding tension of heart yarn, heart yarn pass through the porcelain eye of tandem twizzle 7, and heart yarn is under the central tube of hollow ingot 8 Side enters, and tandem twizzle deviates certain distance not on the axis of central tube, makes heart yarn and central tube at certain Angle, heart yarn pass through yarn poteye different on tandem twizzle, and guide route changes, packet of the heart yarn on lower bushing pipe It is also just different to enclose angle, friction false twist effect is also just different;Aluminium ingot pipe revolution at a high speed together with hollow ingot drives outer fasciated yarn high Speed revolution, outer fasciated yarn is wound on multicore yarn, and the surface that multicore yarn is located at bushing pipe under central tube forms certain angle Grip hold arc, and bushing pipe forms the friction to multicore yarn, false twisting perturbed force in the axial direction under central tube;Heart yarn pass through central tube from Upper end is drawn, and is merged at congregation twizzle 11 with outer fasciated yarn.Aluminium ingot pipe loop is on hollow ingot, and with lower holder and ingot Cap is fixed on hollow ingot, turns round it together with hollow ingot, and hollow ingot lower end passes through the spindle band frictional drive of motor drive.Aluminium Outer fasciated yarn is wound on bolster 9, outer fasciated yarn is drawn from aluminium ingot pipe, it merges at congregation twizzle with heart yarn, aluminium ingot pipe The revolution at a high speed together with hollow ingot drives outer fasciated yarn revolution at a high speed, outer fasciated yarn is wound on heart yarn, while heart yarn is under Liner surface forms the grip hold arc of certain angle, when bushing pipe is with hollow ingot revolution at a high speed instantly, i.e., rubs along axial direction to heart yarn formation It wipes, false twisting effect;Point and outer fasciated yarn are wound from the outsourcing between the unwinding point on aluminium ingot pipe to heart yarn in outer fasciated yarn Yarn is twined, yarn gravity, the centrifugal force of revolution at a high speed, the air drag, coriolis force the effects of under the action of power, forms air ring 10, And generate certain tension;
Due to the tension force effect of outer fasciated yarn, so that heart yarn is acted on by torsional moment at winding point and generates torsion and twist Return, multicore yarn generates section color effect under the action of false twisting turn, and due to the fluctuation of outer looping yarn tension, heart yarn tension fluctuation, Heart yarn uneven twist, makes caused by the false twisting of bushing pipe disturbs under the significant plucked feature of linen and hollow ingot bottom center pipe Section color effect shows as irregularities;Simultaneously under the action of outer fasciated yarn tension fluctuation and heart yarn tension fluctuation, linen it is aobvious Write the false twisting perturbed force of bushing pipe under plucked feature and hollow ingot bottom center pipe so that section color effect show as it is irregular Property;And under the looping of outer fasciated yarn, the color effect of irregular section of fixed multicore yarn, obtaining has the more of irregular section of color effect Color section coloured silk flax, chemical-fibres filaments enveloped composite yarn, resultant yarn are guided through delivery roller 12 and are exported, and the guiding through lever jack 13 passes through Yarn poteye on traverse guide 14 is wound up into a manner of cross winding under the guidance of traverse guide and is wound roller 15 In the cylinder yarn package 16 of frictional drive, it is wound into yarn bobbin.
Heart yarn Tensity size, to guarantee that outer fasciated yarn normally is wound up as primarily guaranteeing to heart yarn.If heart yarn tension is small, Under the tension force effect of outer fasciated yarn, heart yarn can be outsourced twines yarn draw deviate operate normally route, at this time winding cannot normally into Row, heart yarn and outer fasciated yarn, which occur to hand over, to be twisted, and non-twined.Therefore when starting spinning, tensioner is adjusted, makes heart yarn in sky Heart ingot 8 between congregation twizzle 11 to operate to straight line upward.And in adjustment, what the spring tensioner 6 adjusted Spinning tension, which is greater than or equal to, makes spinning of the multicore yarn when hollow ingot is upward to the traffic direction straight line between congregation twizzle Yarn tension.
On hollow ingot embedding spinning machine, hollow ingot ingot speed is constant speed, is not adjusted generally, packet of the outer fasciated yarn to heart yarn Twist size is twined, by adjusting yarn velocity interpolation is drawn.Draw yarn speed and determine heart yarn twist size, it is faster to draw yarn speed, and heart yarn is twisted Spend smaller, section color segment is longer, and color segment number is smaller in unit length yarn.Looping twist size also determines composite yarn mechanical property The major parameter of energy, and draw yarn speed and also directly determine spinning production.When determining the looping twist (drawing yarn to hasten), due to multiple Closing yarn mechanical property, there is no problem substantially in terms of meeting following process requirement, therefore answers overriding concern composite yarn appearance Duan Caixiao The requirement of fruit.
Heart yarn is selected as the long bast fibre spinning creamed linen yarn of a wet process (plucked feature is obvious) He Lianggen and to enamel Chemical-fibres filaments yarn (it is required that be multifilament wherein at least one be terylene colored filaments yarn), outer fasciated yarn selection is colourless, transparency is good Long filament (monofilament or low radical multifilament), line density grasp less than normal, but to be able to satisfy processing in tensile requirements, main function There can be certain influence to resultant yarn mechanical and physical performance for by the fixed heart yarn section color effect of looping.Linen and colored filaments yarn Line density is different, and composite yarn external appearance characteristic and performance characteristic are also different, can be reasonably selected according to the purposes of composite yarn.
When controlling heart yarn moving line using tandem twizzle 7, realizes 18 bottom end friction false twist of hollow ingot central tube, increase When the unevenly distributed rate of the big heart yarn twist, there are multiple yarn poteyes on tandem twizzle, select different yarn poteyes, heart yarn Running route changes, and influences the predetermined curvature of heart yarn 19 cambered surface of bushing pipe under central tube bottom end, and then influences the effect of the false twisting at this It answers.The false twisting residual that false twist effect generates has interference to the final heart yarn twist, thus influences the irregular journey of heart yarn twist variation Degree.Porcelain eye in selection, it is big that heart yarn surrounds radian at lower bushing pipe, and heart yarn false twisting effect is strong, and the final twist distribution of heart yarn is subject to Interference is just big, and twist irregularity is also big.Conversely, selection top porcelain eye, it is small that heart yarn surrounds radian at lower bushing pipe, and heart yarn false twisting acts on Weak, with regard to small, twist irregularity is also small for the interference that the final twist distribution of heart yarn is subject to.Resultant yarn section when can be by selecting different yarn poteyes The comparison of color effect, determines which yarn poteye heart yarn walks, once it is determined that, it is no longer adjusted in spinning process.
When controlling heart yarn moving line using the telescopic scroll tube of notch type, realize that the friction of hollow ingot central tube bottom end is false It twists, when the unevenly distributed rate of increased core twist per unit, has the telescopic scroll tube of different cutting numbers available, select different cutting numbers Scroll tube, influence the coefficient of friction of heart yarn Yu scroll tube cambered surface, and then influence the false twist effect at this.What false twist effect generated False twisting residual has interference to the final heart yarn twist, thus influences the irregular degree of heart yarn twist variation.It selects more than cutting number Scroll tube, heart yarn and scroll tube cambered surface friction coefficient are big, and heart yarn false twisting effect is strong, and the interference that the final twist distribution of heart yarn is subject to is just Greatly, twist irregularity is also big.Conversely, the scroll tube that selection cutting number is few, heart yarn and scroll tube cambered surface friction coefficient are small, heart yarn false twisting Act on weak, with regard to small, twist irregularity is also small for the interference that heart yarn final twist distribution is subject to.It can be by selecting different cutting number scroll tubes When resultant yarn section color effect comparison, determine and select telescopic scroll tube specification, once it is determined that, no longer adjusted in spinning process.
The present invention also provides a kind of using above-mentioned Multicolor segments coloured silk flax, the processing method of chemical-fibres filaments enveloped composite yarn The composite yarn of processing comprising the filament yarn of linen and Duo Gen different colours simultaneously closes the more with section color effect of twisting formation Heart yarn, and fasciated yarn, the outer fasciated yarn are colourless, transparent long filament outside looping on the outside of the multicore yarn, and in outer fasciated yarn packet So that multicore yarn is generated irregular section color effect when twining, and is outsourced and twines yarn looping and fix.
Wherein linen can have the long bast fibre spinning creamed linen yarn of wet process of obvious plucked feature using itself, and Two and above colored filaments yarn composition multicore yarn, to be with long filament colourless, that transparency is good (monofilament or low radical multifilament) Outer fasciated yarn carries out a looping, spins flax composite yarn with Multicolor segments color effect, due to the unstable turn point of heart yarn Cloth, twin-core yarn be outsourced twine yarn winding when, have section color effect, and section color effect have irregular, randomness.It is colourless, saturating After in the outer fasciated yarn looping to heart yarn of the long filament of lightness good (monofilament or low radical multifilament), " white+colour 1+ colour 2 is formed + ... " section coloured silk effect, flax/long filament composite yarn with irregular section of color feature is thus made.It is colourless, transparency is good The outer fasciated yarn of long filament plays fixed heart yarn section color effect, does not significantly affect to the generation of heart yarn section color effect, but can be to resultant yarn Performance has certain influence.
The adjustment that the section coloured silk feature of composite yarn can be realized by adjusting the twist size of heart yarn and irregular degree, is spinning It is by adjusting heart yarn movement velocity (i.e. resultant yarn draws yarn speed) realization during yarn.Draw the increase of yarn speed, heart yarn false twisting is twisted Degree decline, color section segment length increase, and color segment number is reduced in unit length yarn.The irregularities of the heart yarn twist, pass through linen Plucked, hollow ingot central tube bottom end false twisting disturbance and outer looping yarn tension, heart yarn tension fluctuation common guarantee, due to flax Yarn is thick and stiff, and heart yarn plucked effect declines after conjunction, wherein what is played a major role is linen plucked and central tube bottom The heart yarn twist caused by holding false twisting to disturb is unevenly distributed.
It can be by changing the color configuration of long filament heart yarn and the line density realization composite yarn face of linen, color polyester yarn The adjustment of color, linen thread and yarn density increase, and resultant yarn white proportion increases;Colored filaments yarn color and line density change, and can change Become yarn color and colored ratio.
The invention also discloses a kind of processing methods for above-mentioned Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn to add The equipment of work comprising several heart yarn cylinders, each heart yarn cylinder upper end are correspondingly provided with twizzle, and are located at each twizzle center and penetrate Spring tensioner is arranged in the point of intersection of line, and the exit of spring tensioner is equipped with hollow ingot, the spring tension It is equipped with to make to be formed between the path of heart yarn feeding hollow ingot and the central tube of hollow ingot between device and hollow ingot and be pressed from both sides less than 90 degree The eccentric stiffener at angle, aluminium ingot pipe of the outer loop setting of the hollow ingot for the outer fasciated yarn of looping, and the aluminium ingot pipe with it is hollow Ingot is linked, and congregation twizzle is arranged in the upper end of the hollow ingot, and yarn forming device is arranged in the upper end of the congregation twizzle.
Under normal circumstances, heart yarn is to enter central tube from central tube lower end along hollow ingot centerline direction.If changed Become heart yarn and feed direction, so that heart yarn and hollow ingot center line α in a certain angle is entered central tube, as shown in figure 3, then heart yarn will Certain grip hold arc is formed in the cambered surface of bushing pipe (wear-resistant ceramic material) under hollow ingot central tube lower end, when hollow ingot revolution at a high speed When, lower bushing pipe cambered surface axially will generate friction to it along heart yarn, turn round it around this body axis, generate false twist effect.False twisting Function and effect (make heart yarn turn round number of twists and heart yarn number of twists is remained after friction point), depend on heart yarn torsional rigidity, The grip hold arc of hollow ingot revolving speed, the heart yarn speed of service, the coefficient of friction of heart yarn and lower liner surface and heart yarn in lower bushing pipe cambered surface Angle.Constant in ingot speed, the heart yarn speed of service is constant, can be by adjusting core in the case that heart yarn torsional rigidity is unable to adjust The coefficient of friction or heart yarn of yarn and lower bushing pipe cambered surface change false twist effect, to change vacation in the predetermined curvature of lower bushing pipe cambered surface Twist the disturbance effect to heart yarn.
There are two types of the specific implementation methods that the present invention designs: one is adjustable feeding twizzle is used, by adjusting core Yarn generates adjustable false twist effect in the predetermined curvature of hollow ingot central tube bottom end;One is use replaceable cutting bushing type Twister changes heart yarn in the coefficient of friction of central tube lower end, produces by replacing the bushing type twister of top difference cutting number Raw adjustable false twist effect.
The eccentric stiffener is tandem twizzle comprising several twizzles arranged side by side.
Namely play ingot looping (in production on hollow ingot embedding spinning machine, be generally provided with two rows spindle, according to It needs, two rows hollow spindle can align arrangement and carry out looping twice, can also carry out a looping with Heterogeneous Permutation.Dislocation row When column, it is fitted without the spindle position of hollow ingot, installation is a non-rotating metal tube --- thread tube), upper and lower tandem is led Yarn hook.As shown in figure 4, heart yarn is after tensioner, across the porcelain eye 23 of twizzle, from the entrance of hollow ingot central tube of trailer Heart pipe.Twizzle (twizzle axis and central tube axis runout certain distance) not on the axis of central tube, makes heart yarn in Heart pipe α at a certain angle, heart yarn are to form the grip hold arc of angle position 90- α in lower liner surface, and bushing pipe is with hollow ingot height instantly When speed revolution, i.e., friction is formed to heart yarn along axial direction, false twisting acts on.For make false twist effect have adjustability, guidance heart yarn into Enter the twizzle of hollow ingot central tube using the concatenated mode of multiple yarn poteyes, heart yarn passes through the different guide porcelain of twizzle Eye, guide route change, and predetermined curvature of the heart yarn on lower bushing pipe is also just different, and friction false twist effect is also just different.
The eccentric stiffener is telescopic scroll tube, and the telescopic scroll tube can be sleeved on central tube lower end, the set The diameter of bore of cartridge type scroll tube is consistent with the diameter of bore of lower bushing pipe of central tube lower end, and its lower end surface is that arc is bent Face, and several cuttings are set by center radioactivity of inner hole.
Hollow ingot central tube lower sleeve formula scroll tube is generally used for lower ingot looping.Equally using heart yarn and hollow ingot center The mode (being specifically shown in Fig. 8) of the angled α feeding of line generates false twisting to the circumferential friction of heart yarn by the scroll tube of lower bushing pipe Effect.As shown in Fig. 6 (1) and (2), material is wear-resistant plastic for telescopic scroll tube structure and installation cooperation.Its structure and effect Similar flyer roving frame spindle top formula scroll tube.Diameter of bore 8mm can with hollow ingot central tube lower end outer diameter be always sleeved on Heart pipe lower end, center opening is consistent with bushing pipe aperture under hollow ingot central tube lower end, is 3mm, and lower end surface is arc-shaped curved surface (with core Yarn contact surface), along centre bore to radioactivity cutting around, cutting number is 4,8,12 3 kind (cutting number as shown in the figure is 8), groove depth 0.5mm.After set is attached to central tube lower end, heart yarn enters hollow ingot centre bore along its arc-shaped curved surface, and telescopic scroll tube is with hollow Ingot turns round together, and arc-shaped curved surface carries out circumferential friction, false twisting to heart yarn.The groove on arc-shaped curved surface surface, increase with heart yarn it Between coefficient of friction, and cutting number is more, and coefficient of friction is bigger, and false twist effect is more significant.This method is by replacing different cuttings Several telescopic scroll tubes adjusts false twisting effect.
Thread tube 21 is arranged in the hollow ingot line segment, and translatable formula twizzle 20 is arranged between the two, by described in translation The yarn poteye of translatable formula twizzle makes heart yarn moving line deviate hollow ingot center line
Such mode then belongs to ingot looping, translatable formula twizzle.It is same to use adjustment heart yarn and lower bushing pipe grip hold arc The method of degree adjusts false twist effect.As shown in figure 5, on hollow ingot embedding spinning machine, when using upper ingot looping, down rail 22 corresponding spindle positions are thread tube.Install a twizzle, the yarn poteye of twizzle additional between thread tube upper end and hollow ingot lower end It can be translated in the plane in parallel vehicle face, to change the degree that heart yarn moving line deviates hollow ingot center line, change heart yarn Predetermined curvature under hollow ingot on bushing pipe, and then change the circumferential friction false twist effect at lower bushing pipe.
In above-mentioned three kinds of schemes, there is a parameter also critically important, hollow ingot lower end is between feeding twizzle porcelain eye Heart yarn length.This section of yarn obtains the stable twist (stablizing false twisting section) due to the friction false twist by central tube bottom end acts on. Since hollow ingot bottom end realizes the false twisting of heart yarn by rubbing action, belong to passive twisting mode, is turned round with the positive yarn that holds Turn twisting difference, when the antitorque moment of heart yarn is greater than the moment of twist insertion that frictional force generates, heart yarn skids at rubbing surface, cannot More twists are added to heart yarn again.And the torsional rigidity of heart yarn increases with the increase and decrease of the twist.If the yarn segment length is too Short, the quantity for accommodating turn is few, and when heart yarn enters hollow pipe by false twisting point, residual number of twists also will be seldom, to heart yarn Twist distribution interference effect caused by twisting at looping point will also decline.The structure ruler of bonding apparatus heart yarn feeding part Very little to comprehensively consider, stablizing false twisting section heart yarn length general control can be obtained the ideal interference heart yarn twist in 10-15cm The effect of distribution consistency degree, too big difference on effect are also little.
One: three heart yarn flax section coloured yarn of embodiment
Flax heart yarn used is the long bast fibre spinning crofting yarn of 36Nm wet process, and yarn black is as shown in FIG. 10 and 11.From figure In it can be seen that the significant plucked feature of yarn (actual measurement yarn unevenness 35.65%, -50% details reach 3791.7/ Km, 400% slubbing reach 140/km), and Yarn filoplume is more (actual measurement filoplume value H reaches 2.45mm/cm).
Terylene heart yarn specification used is 70D/24F, kind DTY.It is colored using red and two kinds of colors of blue terylene Filament yarn and linen form three heart yarns and carry out looping processing.
Outer fasciated yarn is polyester monofilament, diameter 0.08mm, line density 69dtex.
Main technique are as follows: hollow ingot ingot speed 15435r/min draws yarn speed 28m/min, 551 twirls of the looping twist/m, looping Orientation S is twisted.
False twisting interferes the technology of heart yarn twist distribution using series connection twizzle mode, and twizzle axis and central tube axis are inclined From 12cm, heart yarn and central tube centerlines are 33.
The composite yarn appearance being spun into is as shown in Figures 12 and 13.As can be seen from the figure: it is (sub- that white is presented in composite yarn The dimity) and irregular section coloured silk appearance red, that blue (polyester filament yarn) is spaced;Low line density polyester monofilament (translucent) The looping of outer fasciated yarn, to heart yarn color section Color influences very little (not generating significant mixed color effect);Due to and close and looping effect, The item of composite yarn is done to have with filoplume and be significantly improved.
Two: four heart yarn flax section coloured yarn of embodiment
Flax heart yarn used is the long bast fibre spinning crofting yarn of above-mentioned 36Nm wet process, and terylene heart yarn specification used is 150D/ 48F, kind DTY.Using three kinds of colors of red, blue and green terylene colored filaments yarns and linen four heart yarns of composition into The processing of row looping.
Outer fasciated yarn is polyester monofilament, diameter 0.08mm, line density 69dtex.
Main technique are as follows: hollow ingot ingot speed 15435r/min draws yarn speed 28m/min, 551 twirls of the looping twist/m, looping Orientation S is twisted.
False twisting interferes the technology of heart yarn twist distribution to use the telescopic scroll tube of notch type, twizzle axis and center pipe axle Line deviates 10cm, and heart yarn and central tube centerlines are 30, several 8 slots of scroll tube cutting.
The composite yarn appearance being spun into is as shown in FIG. 14 and 15.As can be seen from the figure: it is (sub- that white is presented in composite yarn The dimity) and red, blue, green (polyester filament yarn) irregular section coloured silk appearance, since color polyester heart yarn forms linen Preferable cladding, is only just presented the white of flax heart yarn at the slubbing of linen;Low line density polyester monofilament (translucent) is outside The looping of fasciated yarn, to heart yarn color section Color influences very little (not generating significant mixed color effect);Due to and close and looping effect, it is multiple The item for closing yarn, which is done to have with filoplume, to be significantly improved.
Embodiment is not construed as limitation of the present invention, any based on spiritual improvements introduced of the invention, all Ying Ben Within the protection scope of invention.

Claims (9)

1. the processing method of a kind of Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn, it is characterised in that: its step are as follows:
1) using linen and the filament yarn of at least two colors as heart yarn, respectively from respective core by the way of passiveness feeding It is unwound on tube, and merges the filament yarn of linen and at least two colors to form multicore yarn, wherein the long filament of different colours Yarn is separately positioned on the both ends of linen;
2) after multicore yarn passes through spring tensioner, and it is fed to hollow ingot, and be arranged in winding outer outside aluminium ingot pipe Fasciated yarn merges at congregation twizzle, and aluminium ingot pipe loop is on hollow ingot, after wherein multicore yarn passes through spring tensioner Feed the angle having between the route of hollow ingot and the central tube axis of hollow ingot less than 90 °;
3) aluminium ingot pipe revolution at a high speed together with hollow ingot drives outer fasciated yarn revolution at a high speed, outer fasciated yarn is wound into multicore yarn On, and the surface that multicore yarn is located at bushing pipe under central tube forms the grip hold arc of certain angle, and bushing pipe is in the axial direction under central tube Form friction to multicore yarn, false twisting perturbed force;
4) point and outer fasciated yarn are wound from the outer fasciated yarn between the unwinding point on aluminium ingot pipe to multicore yarn in outer fasciated yarn Air ring is formed, and generates tension;
5) multicore yarn under tension, is acted on by torsional moment at winding point and generates torsion turn, and make multicore Yarn generates section color effect under the action of false twisting turn;
6) simultaneously under the action of outer fasciated yarn tension fluctuation and heart yarn tension fluctuation, the significant plucked feature of linen and The false twisting perturbed force of bushing pipe under hollow ingot bottom center pipe, so that section color effect shows as irregularities;
7) and under the looping of outer fasciated yarn, the color effect of irregular section of fixed multicore yarn, obtaining has irregular section of color effect Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn.
2. the processing method of Multicolor segments coloured silk flax according to claim 1, chemical-fibres filaments enveloped composite yarn, feature exist In, in step 2, the installing tandem twizzle between spring tensioner and hollow ingot, and pass through tandem twizzle The angle less than 90 degree is formed between multicore yarn and the axis of central tube.
3. the processing method of Multicolor segments coloured silk flax according to claim 1, chemical-fibres filaments enveloped composite yarn, feature exist In being arranged telescopic scroll tube in the central tube lower end of hollow ingot, make the multicore come out by spring tensioner in step 2 The path that yarn feeds central tube has the angle less than 90 degree.
4. the processing method of Multicolor segments coloured silk flax according to claim 1, chemical-fibres filaments enveloped composite yarn, feature exist In after making the yarn of two or more different colours and being combined, and being twisted to doubling, make yarn around itself axis Revolution, so that each one thread being arranged parallel to each other originally is twisted together into cylindrical yarn body, doubling occurs between each section Relative torsion, every one thread helically line morphology, so that the torsional variation of each one thread relative position, by yarn appearance along it Spaced color color lump is divided on length direction.
5. the processing method of Multicolor segments coloured silk flax according to claim 1, chemical-fibres filaments enveloped composite yarn, feature exist In the processing method further includes resultant yarn color adjustment method, and resultant yarn color adjustment method is as follows:
One, the section coloured silk Character adjustment of composite yarn is realized by adjusting the twist size of heart yarn and irregular degree;
Two, it is realized by change as the color configuration and linen of the filament yarn of heart yarn, the line density of color polyester yarn multiple It closes yarn and extends adjustment.
6. a kind of using Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn described in the claims 1,2,3,4 or 5 The composite yarn of processing method processing, it is characterised in that: it includes the filament yarn of linen and Duo Gen different colours and closes twisting shape At the multicore yarn with section color effect, and fasciated yarn, the outer fasciated yarn are colourless, transparent outside looping on the outside of the multicore yarn Long filament, and make multicore yarn generate irregular section color effect in outer fasciated yarn looping, and be outsourced and twine yarn looping and fix.
7. a kind of for Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn described in the claims 1,2,3,4 or 5 The equipment of processing method processing, which is characterized in that it includes several heart yarn cylinders, and each heart yarn cylinder upper end is correspondingly provided with twizzle, And spring tensioner is arranged in the point of intersection for being located at each twizzle central ray, the exit of spring tensioner is equipped with Hollow ingot is equipped with the center in the path and hollow ingot that make heart yarn feeding hollow ingot between the spring tensioner and hollow ingot The eccentric stiffener less than 90 degree of angles, aluminium ingot of the outer loop setting of the hollow ingot for the outer fasciated yarn of looping are formed between pipe Pipe, and the aluminium ingot pipe is linked with hollow ingot, congregation twizzle, the congregation twizzle is arranged in the upper end of the hollow ingot Upper end be arranged yarn forming device.
8. equipment according to claim 7, it is characterised in that: the eccentric stiffener is tandem twizzle comprising if Dry twizzle arranged side by side.
9. equipment according to claim 7, it is characterised in that: the eccentric stiffener is telescopic scroll tube, the sleeve Formula scroll tube is sleeved on central tube lower end, the inner hole of the lower bushing pipe of the diameter of bore and central tube lower end of the telescopic scroll tube Diameter is consistent, and its lower end surface is arc-shaped curved surface, and several cuttings are arranged by center radioactivity of inner hole.
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