CN108728968A

CN108728968A - Multicolor segments coloured silk flax, the processing method of chemical-fibres filaments enveloped composite yarn and composite yarn and equipment

Info

Publication number: CN108728968A
Application number: CN201810728922.2A
Authority: CN
Inventors: 敖利民; 唐雯
Original assignee: Jiaxing University
Current assignee: Zhejiang Saurer New Materials Technology Co ltd
Priority date: 2018-07-05
Filing date: 2018-07-05
Publication date: 2018-11-02
Anticipated expiration: 2038-07-05
Also published as: CN108728968B

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 method, 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, it is distributed in line plucked 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 using the grip hold arc that heart yarn is formed in hollow ingot central tube lower end, 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, the good long filament of transparency（Monofilament or low radical multifilament）Outer 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 technology

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 flow can be divided into long bast fibre spinning and short Bast fibre spinning, wherein long bast fibre spinning it is raw materials used for flax raw ramie through preliminary working（Half deguming）Prepared by scutched line（Process of fiber, it is long fine Dimension）；The raw materials used cast tow to be generated during raw ramie preliminary working of tow system（One is thick, two thick）And during scutched line hackling 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 using process of fiber because being spinned（Long fiber crops）, resultant yarn filoplume is apparent Less than tow system.But since flaxen fiber is firm, obvolvent force difference, resultant yarn filoplume is still more, is rubbed by parts in following process It wipes, filoplume can also regenerate, that is, generate new filoplume.Yarn filoplume, especially long filoplume can give weaving preparation and woven strip to be stranded It is difficult.Dimity filoplume is more, can also increase prodding and itching feeling when fabric is worn next to the skin（Caused by flax fiber is firm）.

It, can item processed, then the method progress spinning processing using sliver blending respectively when flax is with other fiber blends；? Flax fiber can be cut into length corresponding with mixed fiber, and kiering and bleaching, the method for then using staple in bulk blended It spins on cotton spinning, middle long spinning, silk spinning or wool spinning equipment.

Flax and other fiber blends, can improve 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 two kinds of beyber yarn and bleached yarn, the long bast fibre spinning spinning of wet method is still used substantially It forms（This is because the long bast fibre spinning resultant yarn of wet method is fewer than tow system Yarn filoplume, any surface finish）Difference lies in rove for the two Kiering process, for beyber yarn without bleaching, resultant yarn keeps the original light brown of flax（The Asia of different sources, kind, batch Numb color has different）.

The long bast fibre spinning line of wet method has distinct plucked feature（Yarn unevenness is 30% or more, thickness section diameter Than at 8 times or more）, assign 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 on length of yarn direction, different yarn sections are different face Color, an one thread there are two types of or more color, not homochromy section is spaced but different in size（Color section is non-isometric）.

Traditional section coloured yarn production technology is the segmental dyeing of yarn（Red ink paste used for seals）, make yarn that difference be presented along its length The segment of color, due to technical sophistication, segment Color control is difficult, has tended to now superseded.Present section coloured yarn mainly uses Color is spun（It spins again after stock-dye）Technology controls different colours yarn by the transformation to drafting systems such as drawing frame, spinning frames 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, also may be used To be equal line densities section coloured yarn.Particular technique is as follows：

Section colour bar method：By feeding control device in the upper installation of grilling drawing frame or common drawing frame, interruption feeds different face The colored strip of color is made section colour bar, then forms section coloured yarn through draw twisting, is mainly used for the spinning of wool type fiber section coloured yarn System, gained yarn line segment coloured silk fragment length are long.

Colored rove method：Rove is respectively prepared in 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 determining deviation to feed draft area, and feeding position can be identical It can be different（Rear roller is fed or middle roller feeding）, the feeding of different colours rove, include whether feeding and feeding speed list Solely control can be coupling（Resultant yarn is quantitative constant）Can also be non-coupled（Resultant yarn quantitatively changes, ring effect）, each face Color rove, by collector set, the yarn with section color effect is twisted together into 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 （Filament yarn or spun yarn）Spiral wound is to another one thread（Filament yarn or spun yarn）On, being formed has looping structure（It twines It twists）Complex yarn.

The core of hollow ingot wraping spinning technology is hollow ingot wrapping technique, and the technology is in parallel spinning technique（Machine）, it is empty Heart spidle type is twisted thread technology（Machine）On also have application, the former is for spinning short fine fasciated yarn（Heart yarn is the short fine palpus after drawing-off Item）, the latter be exclusively used in spinning flame（After heart yarn is staple fiber yarn after drawing-off or staple fiber yarn and long filament and closes Filament short-fiber composite construction sliver）.Currently, in industry it is used spinning fasciated yarn special equipment be hollow ingot embedding spinning machine, Also known as mechanical coating machine（Referred to as " machine packet " is the address for air network cladding, and air network coats in the industry As " sky packet "）.

Hollow ingot wraping spinning has single packet（Looping）And double-contracting（Looping twice）Point.

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（Twist direction）Can be identical with a looping, it may be reversed, that is, form 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 forms, 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 It includes heart yarn and outer fasciated yarn to have opened a kind of Itch-preventing hemp core wrap yarn and its processing method, the wrap 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：Four step of yarn, looping and winding shaping is drawn in heart yarn unwinding.

Chinese patent CN201621446891.4 discloses a kind of wrap yarn 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 Negative direction twisting is carried out with the second long filament and is coated in the shape of a spiral on the outside of staple fiber yarn core.

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 that a kind of fiber crops wash twisted yarn and its fiber crops forging fabric of preparation, the fiber crops are washed Twisted yarn is twisted to obtain by linen thread and yarn with fine-denier polyester yarns, wherein：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 30D/12F semi-dulls Low elastic polyester filament；The twist TPI that the fiber crops wash twisted yarn is 7-13.

The above correlation skill patent is 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 line, reaches the mesh for improving line machinability and fabric product performance 's.

Invention content

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 being wound to heart yarn 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 provide a kind of Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn processing method, its step are as follows：

1）Using line and the filament yarn of at least two colors as heart yarn, respectively from respective core in such a way that passiveness is fed It is unwound on tube, and merges the filament yarn of line 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 line；

2）After multicore yarn passes through spring tensioner, and it is fed to hollow ingot, and is arranged in kink in hollow ingot with winding On aluminium ingot pipe outside outer fasciated yarn merge at congregation twizzle, wherein multicore yarn pass through spring tensioner after feed There is the angle less than 90 ° between the route of hollow ingot and the central tube axis of hollow ingot；

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 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 notable plucked feature of line 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, irregular section of color effect of fixed multicore yarn, obtaining has irregular section of color effect Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn.

Step 2）In, 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 and the axis of central tube of yarn hook.

Step 2）In, 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 have less than 90 degree of angle.

After making the yarn of two or more different colours and being combined, and doubling is twisted, makes yarn around it Body axis are turned round so that for each one thread twist/twirl being arranged parallel to each other originally together into cylindrical yarn body, doubling is each Relative torsion occurs between section, the equal helically line morphology per one thread 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, it is realized again by changing the color configuration for the filament yarn for being used as heart yarn and the line density of line, color polyester yarn It closes yarn and extends adjustment.

The composite yarn that a kind of processing method using above-mentioned Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn is processed, Filament yarn including line 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 is colourless, transparent long filament, and so that multicore yarn is generated in outer fasciated yarn looping Irregular section color effect, and be outsourced and twine yarn looping and fix.

The equipment that a kind of 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 is set positioned at the point of intersection of each twizzle central ray 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 the central tube of hollow ingot between formed less than 90 degree of angles eccentric stiffener, Aluminium ingot pipe of the outer kink 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 described sleeve pipe formula scroll tube can be sleeved on central tube lower end, the set The diameter of bore of tubular type scroll tube is consistent with the diameter of bore of lower bushing pipe of central tube lower end, and its lower face is that arc is bent Face, and several cuttings are arranged in radioactivity centered on endoporus.

Thread tube is arranged in the hollow ingot line segment, translatable formula twizzle is arranged between the two, by that can be 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 wrinkle resistance in fabrics woven by line is poor, It is very easy to corrugation, influences the presentation quality and wearability of fabric.By by linen thread and yarn and chemical-fibres filaments yarn（Wherein at least One is 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, line can be reduced Regeneration in filoplume and weaving set-up procedure, 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 water power consumption and the 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 line can be improved, improve yarn Line strength, reduce strength irregularity, to realize line exempt from slurry weaving, save sizing operation slurry, auxiliary agent consumption and Water power vapour consumes.

Description of the drawings

Fig. 1 is 3 different colours yarns and closes the section color effect schematic diagram for adding and being generated after weak twist.

Fig. 2（1）（2）（3）（4）False twist effect principle signal when being wound to heart yarn for fasciated yarn outside hollow ingot fasciated yarn spinning 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）For bushing type scroll tube structural schematic diagram.

Fig. 6（2）Scheme of installation for bushing type 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 close-up schematic view of Figure 10.

Figure 12 is the black board draft of red, the blue terylene section coloured silk fasciated yarns of flax -70D.

Figure 13 is the close-up schematic view of Figure 12.

Figure 14 is the black board draft of red, blue, the green terylene section coloured silk fasciated yarns of flax -150D.

Figure 15 is the close-up schematic view of Figure 14.

Specific implementation mode

Embodiments of the present invention is further illustrated below in conjunction with the accompanying drawings：

With the long bast fibre spinning creamed linen yarn of wet method, two and the above colored filaments yarn yarn and it is combined into heart yarn, utilizes hollow ingot packet The distinctive heart yarn false twisting-looping concretion technology feature of spinning is twined, line plucked, outer looping are distributed in using the heart yarn twist Wave phenomenon under yarn tension fluctuation and heart yarn tension fluctuation collective effect, and formed in hollow ingot central tube lower end using heart yarn Grip hold arc generate false twist effect, in conjunction with use tandem twizzle or notch type sleeve scroll tube active accommodation false twist effect, Irregular variation and the Twist Unevenness for aggravating the heart yarn twist make heart yarn generate irregular section of color effect, and using colourless, saturating The good long filament of lightness（Monofilament or low radical multifilament）Outer fasciated yarn carries out looping consolidation, obtains the Asia with Multicolor segments coloured silk feature Numb composite yarn.

When two and the yarn of the above different colours（Filament yarn or spun yarn）And after being combined, if carried out to doubling Twisting（Yarn is set to be turned round around itself axis）, each one thread twist for being arranged parallel to each other originally（It is twisted）Become circle together Between each section relative torsion occurs for cylindricality yarn body, doubling, the equal helically line morphology per one thread.It is this each caused by twisting 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 is smaller（Add weak twist）When, 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）It 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, fasciated yarn is formed（Resultant yarn）.When outer fasciated yarn is wound heart yarn, outer fasciated yarn has certain Tension, tension is mainly produced from unwinding point of the outer fasciated yarn on aluminium ingot pipe and the yarn section between heart yarn looping point（Referred to as gas Enclose section）Gravity and with air drag, centrifugal force, coriolis force caused by hollow ingot revolution at a high speed（Yarn both does circumference Revolution, also axially moves, and there are Corioli inertial force, similar air ring section yarns between Twizzle for ring throstle and wire loop Stress）Deng.At winding point of the outer fasciated yarn to heart yarn, action direction such as Fig. 2 of the tension T of outer fasciated yarn（2）It is shown, it is edge 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 negative 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, such as Fig. 2（3）Shown, on the one hand function and effect are that heart yarn is pulled away from axial location, are on the one hand to generate torsional moment （The product of tangential force T2 and heart yarn radius r）, so that heart yarn is axially turned round 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 both sides, It will generate that quantity is identical, the opposite turn in direction, such as Fig. 2（4）It is shown.In winding or more, the twist direction 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 in certain turn.It is theoretical according to false twisting, added turn on heart yarn, by winding point（False twisting acts on Point）Afterwards, 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 It twists, and the reversed turn of heart yarn cannot be offset（If the looping without outer fasciated yarn consolidates, the heart yarn that winding or less generates is twisted Return can by winding point after be wound point or more generation negative direction turn offset, it is non-twist on final heart yarn）.Backtwisting acts on Lead to the resultant yarn not theoretical twist in looping（Looping gyratory directions are consistent with false twisting gyratory directions, and a part of looping turns round revolution It is balanced out by false twisting revolution revolution）.That is, due to the action character of wraping spinning, generated on heart yarn 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 size and the heart yarn for depending on the torsional moment of the tension generation of outer fasciated yarn are antitorque just 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）Size. Identical in 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 outer fasciated yarn section between unwinding point and looping point（Air ring section）Length 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）The yarn and line density that are spun into are 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 rotating 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 rotating 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 cannot be normally carried out, general heart yarn Apply larger tension, heart yarn is caused to show larger 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 Twirl torsional moment absolute value is smaller, and after heart yarn twists in addition, torsional rigidity also can be with heart yarn windup-degree（The number of turns） 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 acts 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 all factors related with the two are all 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 the vibrations of machinery, heart yarn unwinding tension Stick-slip effect when the parts such as unstable and heart yarn and lever jack rub（Yarn is visco-elastic body）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, with the high and low position of unwinding point（Unwinding point is along aluminium when unwinding warp layer Change from top to bottom, from bottom to top between the axial two side disks of bolster）With unwinding diameter（In entire spinning process, aluminium Outer fasciated yarn on bolster is unwound from full packages to blank pipe, often unwinds warp layer, and unwinding diameter reduces an outer looping yarn diameter）'s 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 the fixation of outer fasciated yarn looping for this irregular section of color effect of heart yarn It sees.

But when heart yarn line density is larger（And it is more to close heart yarn radical）Or certain root heart yarn torsional rigidity itself is 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 twining It is heart yarn generated turn under outer fasciated yarn tension force effect around the torsional moment generated（Or the twist）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 to feeding point direction along heart yarn, winding point heart yarn below made to generate reel-twist, torsional moment It transmits downwards, it is downward by winding point to show as turn（Point is fed to heart yarn）It transmits.If heart yarn is isodiametric, even thickness , although since the increase of heart yarn diameter causes torsional moment to increase, heart yarn diameter increases, under equal conditions, heart yarn it is antitorque Rigidity also will increase（Yarn is thicker, and the ability for resisting torsion increases）, heart yarn institute amount of twist is to increase or reduce, and depends 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, if heart yarn itself is plucked, that is, the segment having is thick, and some yarn sections are thin, then will produce different As a result.

Theoretical according to twisting, in Yarn twisting, if yarn itself is plucked, torsional moment is in twisted yarn section On transmission, lead to turn（The twist）It 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 to yarn from twisting point and transmits, 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 direction is fed to heart yarn（Downwards）It transmits, 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 is 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）Since diameter increase causes torsional rigidity to increase, added turn may not increase place's heart yarn, but what is transmitted when Yarn twisting is to turn round Torque can make the minor diameter yarn section production that torsional rigidity is small when increased torsional moment feeds point transmission from winding point to heart yarn The torsion of raw more number of turns, in addition more turns.That is, for the heart yarn of plucked, increased torsional moment 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, for the heart yarn of plucked, when at major diameter slubbing by winding point, outer looping yarn tension is made With the heart yarn torsional moment of generation because acting on square（Heart yarn radius）Increase and increase, outer looping yarn tension make heart yarn winding point Locate the torsion generated, the revolution number of turns increases, heart yarn institute 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, leads 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 be reduced integrally（Turn total amount is reduced）.

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 apparent.The long bast fibre spinning line of wet method is that thickness is not in common yarn One of even most significant yarn of feature uses line 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, makes heart yarn twist 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 as one of heart yarn using the yarn of plucked, such as long bast fibre spinning line of wet method 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 The interference effect of heart yarn tension fluctuation and the fluctuation of outer looping yarn tension to heart yarn twist distributing homogeneity can be weakened.At this point, to It is further exacerbated by the fluctuation of the heart yarn twist, a section color effect is made to show better randomness（The external appearance characteristic of section coloured yarn and processing Technology requirement, is on the length direction of yarn, randomness, the irregularities of the distribution of different colours yarn section.）, 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 fully 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 twist directions in heart yarn different fragments, will be with The heart yarn turn superposition that outer looping tension force effect generates, makes the distributing homogeneity of heart yarn turn be destroyed, aggravates the heart yarn twist Irregularities.False twist effect is stronger, and false twisting residual turn is bigger in each segment of heart yarn, is done to heart yarn turn distributing homogeneity Disturb bigger, the irregularities of the heart yarn twist are more apparent, Twist Unevenness is bigger.

As shown in Figure 7 and Figure 8, the present invention provides a kind of processing of Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn Method, its step are as follows：

Three heart yarns are unwound from heart yarn cylinder respectively under the guiding of twizzle 4（Twizzle 4 must be located at bobbin central axis Surface, to ensure that yarn is smoothly unwound, twizzle is enclosed type, imperforation, to avoid yarn since shake is de- from opening From twizzle, the normal unwinding of yarn is influenced）, wherein line heart yarn cylinder 2 is centrally located, colored filaments yarn core tube 1, 3 are located at line heart yarn cylinder both sides, the purpose for the arrangement is that when in order to ensure that heart yarn is acted on by false twisting, two colored filaments yarns Line both sides are distributed in, ensures 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 is arranged in kink in sky with winding The outer fasciated yarn outside aluminium ingot pipe on heart ingot merges at congregation twizzle, after wherein multicore yarn passes through spring tensioner There is the angle less than 90 ° between the route and the central tube axis of hollow ingot of feeding hollow ingot；

Wherein can be：Multicore yarn enters the rear porcelain eye of adjustable spring-tension chip yarn tensioner 5, then from two panels tension It passes through between piece, is pierced by from preceding yarn poteye.Spring applies tension piece certain pressure, ensures heart yarn certain feeding Power, heart yarn pass through the porcelain eye of tandem twizzle 6, heart yarn to enter along the central tube of trailer of hollow ingot 7, and tandem twizzle does not exist On the axis of central tube, but deviate certain distance, keep heart yarn at a certain angle with central tube, heart yarn passes through tandem guide Different yarn poteye on hook, guide route change, and surrounded by angle of the heart yarn on lower bushing pipe is also just different, friction false twist Effect is also just different；

Or multicore yarn enters the rear porcelain eye of adjustable spring-tension chip yarn tensioner 5, then worn between two panels tension piece It crosses, is pierced by from preceding yarn poteye.Spring applies tension piece certain pressure, ensures the certain feeding tension of heart yarn, passes through set The mode of cartridge type scroll tube adjustment heart yarn feeding position realizes the bias between the feeding route of heart yarn and central tube；

Heart yarn passes through central tube to be drawn from upper end, merges with outer fasciated yarn at congregation twizzle 10.Aluminium ingot pipe kink is hollow On ingot, it is used in combination lower holder to be fixed on hollow ingot with spindle top, so that it is turned round together with hollow ingot, hollow ingot lower end passes through motor The spindle band frictional drive of transmission.Outer fasciated yarn is wound on aluminium ingot pipe 8, outer fasciated yarn is drawn from aluminium ingot pipe, in congregation guide It merges with heart yarn at hook, 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 Onto heart yarn, while heart yarn forms the grip hold arc of certain angle in lower liner surface, when bushing pipe is with hollow ingot revolution at a high speed instantly, Friction is formed to heart yarn in an axial direction, false twisting acts on；

4）In outer fasciated yarn to heart yarn winding point and outer fasciated yarn from aluminium ingot pipe unwinding point between outer fasciated yarn, Under the action of the effects that yarn gravity, the centrifugal force of revolution at a high speed, air drag, coriolis force power, air ring 9 is formed, and generate one Fixed 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 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 caused by the false twisting disturbance of bushing pipe, makes under the notable plucked feature of line and hollow ingot bottom center pipe Section color effect shows as irregularities；

7）And under the looping of outer fasciated yarn, irregular section of color effect of fixed multicore yarn, obtaining has irregular section of color effect Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn,

Resultant yarn is guided through delivery roller 11 and is exported, the guiding through lever jack 12, passes through the yarn poteye on traverse guide 13, Under the guiding of traverse guide, it is wound up into a manner of cross winding in the cylinder yarn package 15 for being wound 14 frictional drive of roller, winding At yarn bobbin.

And when for 3 colored filaments yarns, three colored filaments yarns it is as shown in Figure 9 with the feeding mode of line：Two Root long gauze is arranged in line both sides, and third root long gauze is fed from another row, after being unwound from bobbin, passes through above bobbin Closing twizzle, the twizzle being then passed through above flax yarn bobbin feeds forward together with line, the porcelain eye after tensioner Place with other two root longs gauzes and close.The purpose for the arrangement is that position configuration when controlling each heart yarn and closing, in heart yarn in When the false twisting effect of heart tube bottom end is twisted together together, three root long gauzes are distributed as far as possible uniformly around line, avoid three root longs Gauze stick to each other influences the section color effect of final resultant yarn.

Heart yarn Tensity size, to ensure that outer fasciated yarn is wound up as primarily ensureing to the normal of 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 normal operation 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 between congregation twizzle to operate to straight line upward.And in adjustment, the spinning of the spring tensioner adjustment Tension, which is greater than or equal to, makes multicore yarn in the spinning that hollow ingot to the traffic direction between congregation twizzle is when straight line is upward Power.

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.Determining the looping twist（Draw yarn to hasten）When, 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 method（Plucked feature is apparent）With two and to enamel Chemical-fibres filaments yarn（It is required that be multifilament wherein at least one being 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 want that the tensile requirements in processing, main work(can be met There can be certain influence to resultant yarn mechanical and physical performance to fix heart yarn section color effect by looping.Line 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, realizes hollow ingot central tube bottom end friction false twist, increase When the unevenly distributed rate of the heart yarn twist, there are multiple yarn poteyes on tandem twizzle, select different yarn poteyes, the fortune of heart yarn Walking along the street line changes, and influences the surrounded by angle of heart yarn bushing pipe cambered surface under central tube bottom end, and then influence the false twist effect at this.It is false Twist the false twisting residual that effect generates has interference to the final heart yarn twist, thus influences the irregular degree of heart yarn twist variation.Choosing Select porcelain eye, heart yarn surrounds that radian is big, and heart yarn false twisting effect is strong at lower bushing pipe, and the interference that the final twist distribution of heart yarn is subject to is just Greatly, twist irregularity is also big.Conversely, selection top porcelain eye, it is small that heart yarn surrounds radian at lower bushing pipe, weak, the core of heart yarn false twisting effect With regard to small, twist irregularity is also small for the interference that the final twist distribution of yarn is subject to.Resultant yarn Duan Caixiao when can be by selecting different yarn poteyes The comparison of fruit, 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 notch type sleeve scroll tube, hollow ingot central tube bottom end friction false twist is realized, When the unevenly distributed rate of increased core twist per unit, there is the sleeve scroll tube of different cutting numbers available, select the vacation of different cutting numbers Twister, influences the friction coefficient of heart yarn and scroll tube cambered surface, and then influences the false twist effect at this.The false twisting that false twist effect generates Residual has interference to the final heart yarn twist, thus influences the irregular degree of heart yarn twist variation.Select the false twisting more than cutting number Device, heart yarn and scroll tube cambered surface friction coefficient are big, and heart yarn false twisting effect is strong, the interference that the final twist distribution of heart yarn is subject to regard to big, 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, and heart yarn false twisting is made With weak, with regard to small, twist irregularity is also small for the interference that the final twist distribution of heart yarn is subject to.When can be by selecting different cutting number scroll tubes The comparison of resultant yarn section color effect determines selection bushing type scroll tube specification, once it is determined that, it is no longer adjusted in spinning process.

The present invention also provides a kind of processing using above-mentioned polychrome Multicolor segments coloured silk flax, chemical-fibres filaments enveloped composite yarn Method processing composite yarn comprising the filament yarn of line and Duo Gen different colours and close twisting formed have section color effect Multicore 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 looping So that multicore yarn is generated irregular section color effect when yarn looping, and is outsourced and twines yarn looping and fix.

Wherein long bast fibre spinning creamed linen yarn of wet method with apparent plucked feature itself may be used in line, and Two and above colored filaments yarn composition multicore yarn, with long filament colourless, that transparency is good（Monofilament or low radical multifilament）For 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 Lightness is good（Monofilament or low radical multifilament）The outer fasciated yarn looping to heart yarn of long filament on after, form " white+colour 1+ colours 2 + ... " 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, is not significantly affected 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 during yarn（I.e. resultant yarn draws yarn speed）It realizes.Draw the increase of yarn speed, heart yarn false twisting is twisted Degree declines, and color section segment length increases, and color segment number is reduced in unit length yarn.The irregularities of the heart yarn twist, pass through line 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 line plucked and central tube bottom The heart yarn twist is unevenly distributed caused by holding false twisting disturbance.

Composite yarn face can be realized by changing the color configuration of long filament heart yarn and the line density of line, 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 resultant yarn color and colored ratio.

The invention also discloses a kind of for above-mentioned polychrome Multicolor segments coloured silk flax, the processing side of chemical-fibres filaments enveloped composite yarn The equipment of method processing comprising several heart yarn cylinders, each heart yarn cylinder upper end are correspondingly provided with twizzle, and in each twizzle Spring tensioner is arranged in the point of intersection of heart ray, and the exit of spring tensioner is equipped with hollow ingot, the spring Formation is less than 90 between being equipped with the path and the central tube of hollow ingot for making heart yarn feeding hollow ingot between tensioner and hollow ingot Spend the eccentric stiffener of angle, aluminium ingot pipe of the outer kink setting of the hollow ingot for the outer fasciated yarn of looping, and the aluminium ingot pipe with Hollow ingot is linked, and congregation twizzle is arranged in the upper end of the hollow ingot, and resultant yarn machine is arranged in the upper end of the congregation twizzle Structure.

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 is entered central tube with hollow ingot center line α in a certain angle, as shown in figure 3, then heart yarn will The bushing pipe under hollow ingot central tube lower end（Wear-resistant ceramic material）Cambered surface on form certain grip hold arc, when hollow ingot revolution at a high speed When, lower bushing pipe cambered surface axially will generate it friction along heart yarn, so that it is turned round around this body axis, generate false twist effect.False twisting Function and effect（The number of twists and heart yarn for making heart yarn revolution remain number of twists after friction point）, depend on heart yarn torsional rigidity, The grip hold arc of hollow ingot rotating speed, the heart yarn speed of service, the friction coefficient 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 friction coefficient or heart yarn of yarn and lower bushing pipe cambered surface change false twist effect, to change vacation in the surrounded by angle 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 and false twist effect is adjusted in the surrounded by angle of hollow ingot central tube bottom end；One is use replaceable cutting bushing type Twister changes heart yarn in the friction coefficient of central tube lower end, production by replacing the bushing type twister of top difference cutting number Raw adjustable false twist effect.

Namely play ingot looping（In production on hollow ingot embedding spinning machine, it is generally provided with two rows spindle, according to It needs, two rows hollow spindle can align arrangement and carry out looping twice, can also a Heterogeneous Permutation looping of progress.Dislocation row When row, it is fitted without the spindle position of hollow ingot, installation is a non-rotating metal tube --- thread tube）, upper and lower tandem leads Yarn hook.As shown in figure 4, heart yarn after tensioner, passes through the porcelain eye of twizzle, enters center from hollow ingot central tube of trailer Pipe.Twizzle is not on the axis of central tube（Twizzle axis and central tube axis runout certain distance）, make heart yarn and center α at a certain angle is managed, heart yarn is the grip hold arc that angle position 90- α are formed in lower liner surface, and bushing pipe is with hollow ingot high speed instantly When revolution, i.e., friction is formed to heart yarn in an axial direction, false twisting acts on.To make false twist effect that there is adjustability, guiding heart yarn to enter The yarn poteye that the twizzle of hollow ingot central tube passes through twizzle different using the concatenated mode of multiple yarn poteyes, heart yarn, Guide route changes, and surrounded by angle of the heart yarn on lower bushing pipe is also just different, and friction false twist effect is also just different.

Hollow ingot central tube lower end bushing type scroll tube is generally used for lower ingot looping.Equally using heart yarn and hollow ingot center The mode of the angled α feedings of line（It is specifically shown in Fig. 8）, false twisting effect is generated to the circumferential friction of heart yarn by lower bushing pipe scroll tube Fruit.Bushing type scroll tube structure and installation cooperation such as Fig. 6（1）With（2）Shown, material is wear-resistant plastic.Its structure and effect class Like flyer roving frame spindle top formula scroll tube.Diameter of bore 8mm always with hollow ingot central tube lower end outer diameter can be sleeved on center Pipe lower end, center opening is consistent with bushing pipe aperture under hollow ingot central tube lower end, is 3mm, lower face is arc-shaped curved surface（With heart 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 bushing type 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 friction coefficient, and cutting number is more, and friction coefficient is bigger, and false twist effect is more notable.This method is by replacing different cuttings Several bushing type scroll tubes adjusts false twisting effect.

Thread tube is arranged in the hollow ingot line segment, translatable formula twizzle is arranged between the two, by that can be put down described in translation The yarn poteye of shifting 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 that radian is surrounded using adjustment heart yarn and lower bushing pipe Method adjusts false twist effect.As shown in figure 5, on hollow ingot embedding spinning machine, when using upper ingot looping, down rail corresponds to Spindle position is thread tube.Install a twizzle additional between thread tube upper end and hollow ingot lower end, the yarn poteye of twizzle can be flat The plane translation in driving face changes heart yarn hollow to change the degree that heart yarn moving line deviates hollow ingot center line Surrounded by angle under 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 are one parameter it is also critically important, hollow ingot lower end to feeding twizzle porcelain eye between Heart yarn length.This section of yarn obtains the stable twist because of the friction false twist effect by central tube bottom end（Stablize false twisting section）. 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 more 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 being twisted at looping point will also decline.The structure ruler of bonding apparatus heart yarn feeding part It is very little to consider, stablize false twisting section heart yarn length general control and 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.

Embodiment one：Three heart yarn flax section coloured yarns

Flax heart yarn used is the long bast fibre spinning crofting yarn of 36Nm wet methods, and yarn black is as shown in FIG. 10 and 11.It can from figure To find out the significant plucked feature of yarn（Yarn unevenness 35.65% is surveyed, -50% details reaches 3791.7/km, 400% slubbing reaches 140/km）, and Yarn filoplume is more（It surveys filoplume value H and 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 forms three heart yarns with line and carries out looping processing.

Outer fasciated yarn is polyester monofilament, diameter 0.08mm, line density 69dtex.

Main technique is：Hollow ingot ingot speed 15435r/min draws yarn speed 28m/min, 551 twirls of the looping twist/m, looping Twist direction 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 is 33 with central tube centerlines.

The composite yarn appearance being spun into is as shown in Figures 12 and 13.As can be seen from the figure：White is presented in composite yarn（It is sub- The dimity）With red, blue（Polyester filament yarn）Spaced irregular section coloured silk appearance；Low line density polyester monofilament（It is translucent） The looping of outer fasciated yarn, to heart yarn color section Color influences very little（Notable mixed color effect is not generated）；Due to and close and looping effect, The item of composite yarn is done to have with filoplume and be significantly improved.

Embodiment two：Four heart yarn flax section coloured yarns

Flax heart yarn used is the long bast fibre spinning crofting yarn of above-mentioned 36Nm wet methods, and terylene heart yarn specification used is 150D/48F, product Kind is DTY.Four heart yarns are formed using the terylene colored filaments yarn and line of three kinds of colors of red, blue and green and carry out looping Processing.

False twisting interferes the technology of heart yarn twist distribution to use notch type casing scroll tube, twizzle axis and central tube axis Deviate 10cm, heart yarn is 30 with central tube centerlines, 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：White is presented in composite yarn（It is sub- The dimity）With red, blue, green（Polyester filament yarn）Irregular section coloured silk appearance, since color polyester heart yarn forms line Preferable cladding, is only just presented the white of flax heart yarn at the slubbing of line；Low line density polyester monofilament（It is translucent）Outside The looping of fasciated yarn, to heart yarn color section Color influences very little（Notable mixed color effect is not generated）；Due to and close and looping effect, it is multiple The item of conjunction yarn, which is done to have with filoplume, to be significantly improved.

Embodiment is not construed as limitation of the present invention, any spiritual improvements introduced based on the present invention, all Ying Ben Within the protection domain of invention.

Claims

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：

2. the processing method of Multicolor segments coloured silk flax according to claim 1, chemical-fibres filaments enveloped composite yarn, feature exist In step 2）In, tandem twizzle is installed between spring tensioner and hollow ingot, and across 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 step 2）In, it is arranged telescopic scroll tube in the central tube lower end of hollow ingot, makes the multicore come out by spring tensioner The path that yarn feeds central tube has the angle for being 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 twist/twirl being arranged parallel to each other originally is together into cylindrical yarn body, between each section of doubling Relative torsion occurs, the equal helically line morphology per one thread so that the torsional variation of each one thread relative position, by yarn appearance Spaced color color lump is divided on along its length.

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：

6. a kind of Multicolor segments coloured silk flax using described in the claims 1,2,3,4 or 5, chemical-fibres filaments enveloped composite yarn The composite yarn of processing method processing, it is characterised in that：It includes the filament yarn of line 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 Multicolor segments coloured silk flax for described in the claims 1,2,3,4 or 5, chemical-fibres filaments enveloped composite yarn 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 set positioned at the point of intersection of 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 kink 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, described sleeve pipe Formula scroll tube can be sleeved on central tube lower end, and the diameter of bore of described sleeve pipe formula scroll tube is interior with the lower bushing pipe of central tube lower end Bore dia is consistent, and its lower face is arc-shaped curved surface, and several cuttings are arranged in radioactivity centered on endoporus.

10. equipment according to claim 7, it is characterised in that：Thread tube is arranged in the hollow ingot line segment, sets between the two Translatable formula twizzle is set, it is hollow that the yarn poteye by translating the translatable formula twizzle so that heart yarn moving line deviates Ingot center line.