CN107829190B

CN107829190B - Ultra-smooth enhancement treatment method for multi-feather yarns

Info

Publication number: CN107829190B
Application number: CN201711141656.5A
Authority: CN
Inventors: 夏治刚; 许燕; 徐卫林
Original assignee: Wuhan Textile University
Current assignee: Wuhan Textile University
Priority date: 2017-11-17
Filing date: 2017-11-17
Publication date: 2020-05-19
Anticipated expiration: 2037-11-17
Also published as: CN107829190A

Abstract

The invention relates to a method for ultra-smooth enhancement of a hairy yarn, and belongs to the technical field of textile processing. According to the invention, the ultra-smooth enhancement treatment device is arranged on the running route of each hairy feather yarn, so that the hairy feather yarns are firstly infiltrated and then drawn, the mechanical structure of the yarns is optimized in a multi-scale manner, and the yarn strength is greatly improved; meanwhile, silk screen spraying and eddy current wrapping treatment are carried out on the surface hairiness of the yarn in the drafting process to form a silk screen consolidation self-locking type hairiness wrapping structure, a plurality of silk screen composite wrapping units are arranged according to needs, the yarn hairiness is wrapped intensively for a plurality of times, and the problem of rebounding of the yarn and the corresponding fabric due to subsequent friction hairiness is solved; the invention integrates the drafting enhancement, the silk screen coating and the eddy current wrapping and winding into a whole to be applied to the treatment of various hairy-feather yarns, effectively integrates the enhancement, the smoothness, the consolidation and the like, synergistically improves the surface and the internal structure of the yarns and realizes the consolidated ultra-smooth enhancement treatment effect of the hairy-feather yarns. The invention has convenient operation and easy popularization.

Description

Ultra-smooth enhancement treatment method for multi-feather yarns

Technical Field

The invention relates to a method for ultra-smooth enhancement of a hairy yarn, and belongs to the technical field of textile processing.

Technical Field

The hairiness is one of important indexes for measuring the quality of the yarn. The yarn hairiness not only affects the production efficiency of the post-processes of weaving, knitting and the like, but also affects the appearance quality of the final product, and especially at present, the yarn hairiness is greatly reduced and the ultra-clean forming of the surface layer structure of the spun staple yarn is realized by using a high-speed shuttleless loom and a high-speed warp knitting machine widely, so that the method has very important significance.

Staple yarns are mainly of the grip end spinning and the open end spinning, wherein the grip end spinning is represented by ring spinning. The hairiness of ring spun yarn is generated in the spinning process, and the mechanism is that the head end of the fiber which is transferred inside and outside is exposed out of the yarn body, and then the fiber can not enter or wrap the main body of the yarn body again under the holding action of a jaw to form the hairiness. The open-end spinning is represented by rotor spinning, the yarn forming mechanism is fiber lap joint layer twisting type twisting spinning, the surface layer structure of the yarn is loose, and the fiber head end is easily exposed to be in a free state to form hairiness. The yarn hairiness is increased in the winding and warping processes, and the root causes are as follows: the yarn has more hairiness on the surface and loose structure, and in the high-speed running process of the yarn such as spooling, warping and the like, the yarn is subjected to intense friction through parts such as a yarn guide part, a tension part and the like, so that the fiber head end in the yarn body is seriously drawn and dissociated on the surface of the yarn body, the hairiness is greatly increased, and the surface layer structure is seriously damaged. In order to reduce yarn hairiness and realize smooth weaving of yarns, textile enterprises generally carry out slashing treatment on warped yarns, attach the yarn hairiness, and simultaneously carry out enhancement, stretch protection and wear resistance on the yarns. However, the warping usually adopts slice yarn sizing, which causes the yarns to adhere to each other, and needs wet and dry split twisting, and the yarns are torn to destroy the surface serous membrane of the yarn body and generate secondary hairiness when split twisting. Although single yarn sizing can solve the problems of serosa damage and secondary hairiness caused by leasing, the single yarn sizing still faces the problems of secondary desizing and environmental pollution. Therefore, the hairiness of the yarn is eliminated, and the density of the surface layer structure of the yarn is increased before sizing.

For the ring spinning process, a great deal of research has been done by scholars at home and abroad. Two approaches are usually adopted, one is to optimize the common ring spinning process by adopting a conventional method, the method can only reduce yarn hairiness to a certain extent, and the action effect is limited; the other method adopts a novel spinning technology or a special hairiness eliminating device to eliminate hairiness, and can greatly reduce the hairiness of the ring yarn. A novel ring spinning technology or a special hairiness eliminating device is a hot point of the current ring spinning technology research. The current novel ring spinning technology represents a compact spinning technology, such as the invention patent of Device for spinning, condensing and transmitting a love of fibers spinning operation, which is disclosed by the intellectual property office of the United states in 1984, 12-18.7, patent No. US 4488397; the invention patent "Device for condensing a draft fiber strand", published by the intellectual property office of america at 2000, 6/13, patent No. 6073314; the invention patent "Arrangement for condensing a draft fiber strand" published by the intellectual property office of the united states at 2000, 7, 4, patent No. 6082089; the invention patent "Transport for transporting a fiber strand to be condensed" disclosed by the intellectual property office of the united states on day 1, month 9, 2001, patent No. US 6170126B 1; the United states intellectual Property office 2001, 7, 24, patent number US6263656B 1; the invention patent "Apparatus for contracting a draft strand" published by the intellectual property office 2001, 8/14/2001, patent number US 6272834B 1; the invention patent "Condensing zone for a spinning machine" disclosed in 29.5.2001 of the intellectual property office of the United states, patent number US 6237317B 1. The core principle of the compact spinning technical patent publication is a needle ring spinning process, fiber strands in a spinning triangular area are gathered, control over fibers at the edge of the fiber strands is enhanced, exposure of fiber head ends in the spinning process is effectively reduced, and yarn hairiness is reduced; however, compact spinning eliminates a spinning triangular space, the internal and external transfer of fibers in a yarn body is insufficient, the cohesive force is insufficient, the hair feather is still exposed at the outer layer, and the hair feather is still increased after the yarn body is subjected to friction; especially, the current compact spinning technology by airflow gathering has obvious effect on reducing hairiness of high count yarns and poor effect on reducing hairiness of thick and extra yarns.

The special hair feather reducing device used at present is in an air jet form, is arranged between a front roller and a yarn guide hook, and utilizes the rotation of air flow to make the formed hair feather attached to the surface of yarn, such as the invention patent 'method and apparatus yarn guide' disclosed by the American intellectual Property office 1979, 4-10, patent No. 41481779, the invention patent 'method and apparatus for modifying yarn guide' disclosed by the American intellectual Property office 1989, 8-22, 5263311. The main difference of the researches is that the fiber stress direction on the surface of the yarn is different due to different air jet devices, so that different winding effects are generated, and the yarn hairiness elimination effect is different. However, the devices can only be installed behind the twisting triangular space (because the fibers in the twisting triangular space are basically in a loose fiber shape, the sprayed air flow can cause the fibers to move disorderly and break ends), the air flow blowing objects are yarns and the hairiness on the surfaces of the yarns, the rotating effects of the air flows of the two objects are different, and the hairiness is retained on the surfaces of the yarns in a simple attaching and loose winding manner; in the subsequent process (such as winding), the machine parts rub and draw out the fibers of the surface layer structure of the yarn, and the loose and wound hairiness is revealed again, so that the effect of really eliminating the hairiness can not be achieved.

Aiming at the problems that the surface structure of the yarn is damaged, the hairiness is greatly increased, the strength is reduced, a matched sizing process is required, the sizing difficulty and the sizing cost are increased and the like due to high-speed friction in a winding process, a hairiness lodging device is arranged in the winding process to inhibit the generation of the hairiness, and the method has very important significance for the production of the subsequent process and the improvement of the quality of a final product. The methods for reducing yarn hairiness that have been studied at present mainly focus on devices for reducing yarn hairiness in spoolers; although there are many related patent documents, the basic principle is the same, that is, the yarn is untwisted and twisted on the advancing yarn on a winder, so that the hairiness on the surface of the yarn is wound on the surface of the yarn, and the purpose of reducing the hairiness is achieved. Representative patent documents are: the European patent number is EP 0866014A 2, published on 23.09.1998, the name of the invention is Auto winter, and the application publication adopts the mechanical action of a rotary false twisting disc in a spooling process flow to ensure that free fibers are attached to a yarn body along the twisting direction of the yarn so as to reduce the hairiness of the yarn; the invention is named as hairless controlling device and windder in US patent No. 6374588B 1, published 2002, 04.23.A published application adopts the mechanical action of a rotary false twisting disc in a spooling process flow to ensure that free fibers are attached to a main stem of a yarn body along the twisting direction of the yarn so as to reduce the hairiness of the yarn; the European patent No. EP 1146002A 2, published 2001, 10.17.titled Automatic winder and hairless covering device, is invented and created, and the application official document utilizes an air vortex tube to wrap hairiness on a yarn body again through the mechanical action of rotating airflow so as to reduce the hairiness, but the wrapping effect is poor only by the wrapping action of the airflow in principle; european patent No. EP 1013803 a2, published 2000, 06, 28, entitled hair styling device for automatic winder, also uses an air vortex tube to rotate a yarn by an air stream, and wraps the fibers around the yarn body as the rotating yarn passes over a regulating plate (regulating plate) to reduce hairiness; the invention provides a hairiness lodging device of an automatic winder, which is called ZL 99127507.1 and published as 07.05.2000.A public application of the device also uses an air vortex tube to rotate yarns through airflow, but the device is additionally provided with controllers at two ends to ensure that the yarns rotate along the axis of the device to generate a false twisting effect and improve the efficiency of reducing the hairiness of the yarns. In addition, the invention provides a method for reducing yarn hairiness in a Chinese patent number ZL 200710052991.8 on 2008/01/23.the application official document provides a method for attaching and wrapping yarn hairiness on line in a winding and knitting process by adopting a false twist ironing mode, and a few of hairiness is involved in a yarn body, so that the aim of inhibiting the growth of the yarn hairiness in the winding or knitting process is fulfilled. The method and the device for reducing the hairiness on the surface of the yarn have the common points that a small amount of untwisted yarn bodies and wrapped partial hairiness are firstly carried out on the running yarn to enter the yarn bodies by means of vortex blowing or mechanical rotation and the like, then the twisted yarn bodies are recovered to be further wrapped with the hairiness, and the random wrapping causes the hairiness to be wrapped on the yarn trunk in a falling and scattering manner; in addition, the hairiness is not actively and effectively held in the lodging and scattering wrapping process, the hairiness lodging and scattering wrapping structure is loose, the densification degree of the surface layer of the yarn is not improved, and the reduced hairiness is easy to rebound again after being subjected to friction; meanwhile, when the hairiness is scattered and wound on the yarn body, yarn defects such as yarn slub, neps and the like after the hairiness is reduced are greatly increased due to fiber aggregation.

Therefore, the yarn hairiness control in the yarn using process of spooling, warping, knitting and the like is shown, and the common points of the existing methods are as follows: under the condition that the head end of the hairiness is not positively held, false twisting or air flow blowing wrapping is carried out on the yarn, most of the hairiness extending out of the surface of the yarn is wound in a loose form and is attached to the surface of the yarn, compact structural relation cannot be formed between hairiness fibers and a yarn body, and hairiness reduction is realized only visually; aiming at the problem that in the process of attaching hairiness in the untwisting-twisting mode, the local twist of the yarn is dynamically transferred and redistributed, and a part with weak twist appears, so that the main evenness of the yarn body is easily deteriorated due to the tension and the stretching of the yarn. More importantly, in the subsequent process, as the yarn is rubbed by the machine element, the fibers which are loosely wound and attached to the surface of the yarn are easy to extend out of the surface of the yarn again to form hairiness, and the subsequent process of the yarn and the quality of the final product are not substantially improved.

Aiming at the problems, the Chinese patent No. ZL 201410204503.0, published 2014, 05 and 15 is invented and created as a method for improving the surface layer structure of the yarn in a positive holding and rotating way, and the application official case provides a method for holding the surface layer hairiness of the yarn by adopting negative pressure adsorption and simultaneously winding the held hairiness on the main stem of the yarn tightly in a rotating way; however, the conical holding surface has a negative pressure holding effect along the whole circumference, so that the coarse and hard yarn hairiness which is fragile and easy to break at the connection part of the hairiness and the yarn body main body are always blocked by broken coarse and hard fibers in the treatment process, and workshop flying flowers are attached to the meshes, so that the holding effect of the conical holding surface on the yarn surface is greatly weakened or even lost, and the effect of continuously and effectively holding and wrapping the hairiness on the yarn surface cannot be met; on the other hand, when the hairiness is wound on the yarn body, the hairiness is wound on the yarn trunk in a high-speed rotating mode in a mode of being perpendicular to the yarn trunk at the winding position, so that the hairiness cannot be wound on the yarn body in a large thread pitch, the yarn strength cannot be improved, yarn defects such as yarn slubs and neps are increased greatly due to the fact that the yarn hairiness is wound on the yarn body in a gathering mode, and corresponding fabric appearance defects are increased; especially, the tapered holding surface rotates for a circle, only the filoplume can be wound on the yarn body for a circle, if the filoplume wrapping efficiency is improved, the rotating speed of the tapered holding surface needs to be greatly improved, the energy consumption and the abrasion of a rotating part are increased, and the technical purpose of ultra-smooth yarn treatment for winding the filoplume at high speed and high efficiency cannot be realized. The invention provides an ultra-smooth warping method for a multi-feather yarn, which is invented and created by the Chinese patent number ZL201510700297.7 on the publication date 2015, 10 months and 26 days, and provides a method for performing ultra-smooth processing on the multi-feather yarn in the warping process; the invention provides a super-smooth and clean weft knitting method of a multi-feather down yarn, which is invented and created by the Chinese patent number ZL201510700297.7 on the publication date 2015, 10 months and 26 days, and provides a method for carrying out super-smooth treatment on the multi-feather down yarn in the weft knitting process; the invention provides a method for directionally stretching and softening wound yarn hairiness in coordination with Chinese patent number ZL 201510700161.6 on 2015 for 26 months, provides a directional stretching type orderly wrapping method for preventing hairiness from being wrapped to form yarn defects, and can be used for spinning, spooling, warping, knitting and other processes. Although the three applications can wind yarn hairiness at a high speed and high efficiency to realize the ultra-smooth processing of multi-hairiness yarn, the fiber head end wrapped on the outermost layer of the ultra-smooth yarn processed by the three applications still presents a free section state, a fixed connection type self-locking structure is not formed, and after the subsequent yarn is rubbed, washed by corresponding loose fabric and rubbed for multiple times, the hairiness head end is still easy to be unwound, drawn out and formed with more hairiness again. Therefore, how to perform high-speed and high-efficiency consolidation type ultra-smooth treatment on the multi-hairiness yarn is the most key technical problem for solving the hairiness defect of the yarn once and for all.

The vortex spinning machine adopts vortex airflow to wrap fiber into yarn, is the most effective technology for producing high-cleanness spun staple yarn at present, and has high automation degree of technical equipment, high yarn forming speed and spinning speed of up to 450 m/min; the technical representatives are MJS type and Japan village MVS type vortex spinning machines of Switzerland company, and the vortex spinning principle is as follows: the vortex spinning device is composed of a fiber conveying pipeline, a fiber flow guider, an outer pipe, a static spindle (also called a core pipe) and the like; the outer pipe is provided with 3 or 4 tangential air inlets, the lower end of the outer pipe is connected with a blower, the blower continuously extracts air from the pipe, and the outside air enters the vortex pipe along the air inlets to generate vortex-shaped airflow; the fiber strips are fed into a drafting system of the vortex spinning machine by a cotton feeding roller, and the fiber strands output by drafting are fed into the vortex spinning machine at a high speed from a cotton conveying pipeline by virtue of the action of air flow; when the upward rotating airflow reaches the core tube, the upward rotating airflow is combined with the fiber conveyed by the fiber conveying pipeline and guided by the fiber flow guider to enter, a condensed fiber ring is formed along the inner wall of the vortex tube, stably surrounds the axis of the static spindle, and rotates at high speed to wrap and twist the fiber into yarn. As the vortex spinning belongs to the wrapping and winding yarn, the surface structure of the yarn is densely wound, and the surface is smooth and clean. However, because the internal and external transfer of fibers in the vortex yarns is insufficient, the cohesion of the fibers in the yarn body is poor, and the smooth yarn surface cannot make up for the defect of the yarn body structure, the vortex yarns have low strength and poor stability and wear resistance of the yarn body. Therefore, the vortex spinning machine is mostly used for processing and producing viscose fiber yarns with large cohesive force and very softness, is not suitable for spinning difficult-to-spin fibers such as high-rigidity hemp fibers, high-resilience high-crimp wool fibers and the like, and further has no capability of producing and processing high-strength high-smoothness conventional fine yarns. Therefore, how to use the vortex wrapping principle to efficiently and ultra-cleanly and strongly process the difficult-to-spin fiber high-count yarns such as high-rigidity hemp fibers, high-resilience high-crimp wool fibers and the like is a bottleneck problem to be solved urgently.

Disclosure of Invention

Aiming at the technical problems that the prior wrapping method cannot treat the multi-hairiness yarn in a high-speed and high-efficiency consolidation type ultra-smooth and clean manner once and for all, the vortex spinning cannot realize the high-cleanness synergistic enhancement of fiber to form a yarn body structure, and the varieties of the fiber and the yarn are limited, the invention aims to provide a method for ultra-smooth and enhanced treatment of the multi-hairiness yarn, and the technical solution is as follows:

a method for ultra-bright and clean enhancement treatment of multi-feather yarns comprises the steps of arranging an ultra-bright and clean enhancement treatment device on the running route of each multi-feather yarn, wherein the ultra-bright and clean enhancement treatment device consists of a base plate, an infiltration groove, an input roller jaw, a silk screen composite wrapping unit and an output roller jaw, the infiltration groove, the input roller jaw, the silk screen composite wrapping unit and the output roller jaw are sequentially and fixedly arranged on the surface of the base plate, a first infiltration sheave and a second infiltration sheave are arranged in the infiltration groove, the upper end of the infiltration groove is provided with a yarn inlet and a yarn outlet, the yarn inlet is provided with a yarn inlet sheave, the yarn outlet is provided with a yarn outlet sheave, the first infiltration sheave, the second infiltration sheave, the yarn inlet sheave and the yarn outlet sheave are parallel to each other and are arranged on the same vertical plane, the input roller jaw is formed by the engagement of an input roller and an input rubber roller which are vertically arranged on the surface of the base, the output roller jaw is formed by meshing an output roller and an output rubber roll which are vertically arranged on the surface of a base plate, the input roller jaw and the output roller jaw are on the same plane, a silk screen composite wrapping unit is positioned between the input roller jaw and the output roller jaw, at least 1 silk screen composite wrapping unit is provided, the silk screen composite wrapping unit is composed of a silk screen spraying device and a vortex wrapping device, the vortex wrapping device is composed of a directional air jet tube and a vortex device, the vortex device is composed of a yarn leading tube, a static spindle and a vortex tube, the front end of the vortex tube is provided with a yarn leading tube, the yarn leading tube is provided with a yarn inlet channel, the static spindle is embedded into the rear end of the vortex tube, the front end of the static spindle is in a cone shape, the front end of the static spindle corresponds to the yarn leading tube, a vortex chamber is formed between the front end of the static spindle and the inner wall of the vortex tube, the static spindle is, the air inlet channel and the air outlet channel are communicated with the vortex chamber, the air outlet of the air inlet channel corresponds to the front end of a static ingot, the air inlet of the air outlet channel corresponds to the rear end of the static ingot, the air outlet channel on the vortex tube is communicated with a directional air jet tube, the air outlet of the directional air jet tube is in a horn mouth shape, the air outlet of the directional air jet tube is positioned between a vortex device and a silk screen spraying device, the end surface of the air outlet of the directional air jet tube is parallel to the plane where the input roller jaw and the output roller jaw are positioned, the distance between the two planes is 2-10 mm, the silk screen spraying device is positioned between the vortex wrapping device and the input roller jaw, and the silk screen spraying device is composed of a metering pump, a first nanometer electrostatic spinning nozzle, a second nanometer electrostatic spinning nozzle and a receiving plate, the receiving plate is parallel to the plane where the input roller jaw and the output roller jaw are located, and is positioned below the plane, the first nanometer electrostatic spinning nozzle and the second nanometer electrostatic spinning nozzle are positioned above the plane where the input roller jaw and the output roller jaw are located, a silk screen spraying area is formed among the receiving surfaces of the first nanometer electrostatic spinning nozzle, the second nanometer electrostatic spinning nozzle and the receiving plate, and the first nanometer electrostatic spinning nozzle and the second nanometer electrostatic spinning nozzle are respectively connected to the metering pump through communicating pipes;

when the on-line operation multi-feather down spinning machine works, the multi-feather down spinning passes through a yarn inlet grooved pulley on an infiltration groove, enters the infiltration groove containing a penetrant KFC solution with the concentration of 0.1-0.5% from a yarn inlet, sequentially winds around a first infiltration grooved pulley and a second infiltration grooved pulley, is completely infiltrated in the solution, passes through a yarn outlet grooved pulley on the infiltration groove, is output from a yarn outlet, is input into a silk screen injection area through an input roller jaw, the spinning speeds of a first nano electrostatic spinning nozzle and a second nano electrostatic spinning nozzle, the first nano electrostatic spinning nozzle and the second nano electrostatic spinning nozzle are externally connected with a high-voltage direct-current power supply of 10-100 KV, a receiving plate is grounded, a high-voltage static pressure field is formed between the first nano electrostatic spinning nozzle, the second nano electrostatic spinning nozzle and the receiving plate, and the first nano electrostatic spinning nozzle and the second nano electrostatic spinning nozzle continuously spray a nano electrostatic spinning screen to the surface of the multi-feather down spinning machine under the control action of a metering pump, covering the hairiness of the main body of the multi-hairiness yarn, enabling 4-7MPA compressed airflow to enter an air inlet pipeline of a vortex device, spraying the compressed airflow into a vortex chamber to form airflow vortex, enabling the airflow to enter an air spraying pipe through an air outlet channel, spraying the airflow directionally from an air outlet of the air spraying pipe, running to the multi-hairiness yarn covered with a nano-micro silk screen below an air outlet, enabling the hairiness and the micro-nano silk screen to extend synchronously along the airflow direction under the action of the airflow, enabling the multi-hairiness yarn to enter the vortex device of a vortex wrapping device, enabling the multi-hairiness yarn to be subjected to network consolidation wrapping on the surface of the yarn under the combined action of the airflow vortex and the nano-micro silk screen, enabling the yarn to be subjected to 1.5 times of drafting treatment of an input roller jaw and an output roller jaw simultaneously, exciting the twist readjustment of a yarn main body, causing the slip extension of hook fibers in the yarn, the yarn after being wrapped and enhanced is output from a nip of an output roller.

Due to the adoption of the technical scheme, compared with the prior art, the method for ultra-smooth enhancement treatment of the hairy-feather yarns has the advantages that: the invention adopts the technical scheme that an ultra-clean enhancement treatment device is arranged on each hairy-feather yarn running line, the ultra-clean enhancement treatment device consists of a substrate, and an infiltration groove, an input roller jaw, a silk screen composite wrapping unit and an output roller jaw which are sequentially arranged on the substrate, wherein the 'drafting process arrangement that yarns are infiltrated by the infiltration groove firstly and then are drafted by the input roller jaw and the output roller jaw' is adopted, the yarn body is excited to twist and readjust, the extension of bent fibers in the yarn body is caused, the internal part of fully-extended fibers in the yarn body is induced to be subjected to oriented crystallization, the mechanical structure of the yarns is optimized in a multi-scale manner so as to enhance the yarn body, the tensile breaking strength of the yarns is greatly improved, the mechanical properties of various hairy-feather yarns are effectively improved, and the technical problem that the yarn strength lifting space is limited when the hairy-feather yarns are subjected; the method comprises the following steps of adopting at least one silk screen composite wrapping unit, carrying out nano-microfiber net covering on a multi-feather yarn by a silk screen spraying device of the silk screen composite wrapping unit, carrying out network consolidation wrapping on the multi-feather yarn by an eddy wrapping device of the silk screen composite wrapping unit to form a silk screen consolidation self-locking type ultra-smooth feather wrapping structure, arranging 2 or more silk screen composite wrapping units according to different requirements of processes and models, carrying out multiple strengthening wrapping on the yarn feather, avoiding the phenomenon that the head end of the feather is still easy to be unwound and pulled out after the yarn is subjected to subsequent friction, washing corresponding to loose fabric and rubbing for multiple times, and forming more feathers again, and solving the technical problems of how to carry out high-speed and high-efficiency consolidation type ultra-smooth processing on the multi-feather yarn and how to repair the surface structure defects of the multi-feather yarn once for all; the invention is characterized in that the drawing enhancement, the silk screen coating and the eddy current wrapping are applied to the consolidation type ultra-smooth and clean enhancement treatment of various multi-hairiness yarns (including difficult-to-spin fiber yarns such as ramie, wool and the like) in an integrated manner, so that the enhancement, the smoothness, the consolidation and the like are effectively fused, the cooperative optimization and the improvement of a hairiness structure on the surface layer of the yarn and a main body structure inside a yarn body are realized, and the technical problem that the eddy current spinning machine cannot manufacture ultra-clean enhanced high count yarns of difficult-to-spin fibers such as high-rigidity hemp, high-resilience high-crimp wool and the like is solved. The method has the advantages of simple equipment modification, convenient operation, suitability for processing various hairy-feather yarns and easy large-area popularization and use.

Drawings

Fig. 1 is a schematic diagram of the working principle of the present invention.

Detailed Description

The method of the present invention for ultra-smooth enhancement of a hairy yarn will be described in detail with reference to the accompanying drawings.

See the attached drawings.

A method for ultra-bright and clean enhancement treatment of multi-feather down yarns comprises the steps of arranging an ultra-bright and clean enhancement treatment device on the running route of each multi-feather down yarn, wherein the ultra-bright and clean enhancement treatment device consists of a base plate 1, an infiltration groove 7, an input roller jaw, a silk screen composite wrapping unit and an output roller jaw, the infiltration groove 7, the input roller jaw, the silk screen composite wrapping unit and the output roller jaw are sequentially and fixedly arranged on the plate surface of the base plate (1), a first infiltration sheave 8 and a second infiltration sheave 10 are arranged in the infiltration groove 7, the upper end of the infiltration groove 7 is provided with a yarn inlet and a yarn outlet, the yarn inlet is provided with a yarn inlet sheave 6, the yarn outlet is provided with a yarn outlet sheave 9, the first infiltration sheave 8, the second infiltration sheave 10, the yarn inlet sheave 6 and the yarn outlet sheave 9 are mutually parallel and are arranged on the same vertical plane, the input roller jaw is formed by meshing an input rubber roller 12 and an input rubber roller 11 which are vertically arranged on the plate surface of the base plate 1, the output roller jaw is formed by the engagement of an output roller 21 and an output rubber roll 20 which are vertically arranged on the surface of the base plate 1, the input roller jaw and the output roller jaw are on the same plane, a silk screen composite wrapping unit is positioned between the input roller jaw and the output roller jaw, at least 1 silk screen composite wrapping unit is provided, in order to realize better implementation effect, 2 or more silk screen composite wrapping units are arranged between the input roller jaw and the output roller jaw according to the variety of the processed yarn, the type of the used machine and the running speed, the silk screen composite wrapping unit is composed of a silk screen spraying device and a vortex wrapping device, the vortex wrapping device is composed of a directional air jet pipe 14 and a vortex device, the vortex device is composed of a yarn-leading pipe 16, a static ingot 19 and a vortex pipe 18, the front end of the vortex pipe 18 is provided with the yarn-leading pipe 16, the yarn-entering channel is opened in the yarn-leading pipe, a static spindle 19 is embedded in the other rear end of the vortex tube 18, the front end of the static spindle 1) is in a cone shape, the front end of the static spindle 19 corresponds to a yarn guiding tube 16, a vortex chamber is formed between the front end of the static spindle 19 and the inner wall of the vortex tube 18, a yarn outlet channel is arranged in the static spindle 19, the central axis of the yarn outlet channel is superposed with the central axis of the yarn inlet channel and is positioned on the plane where a jaw of an input roller and a jaw of an output roller are positioned, an air inlet channel 17 and an air outlet channel 15 are arranged on the vortex tube 18, the air inlet channel 17 and the air outlet channel 15 are communicated with the vortex chamber, the air outlet of the air inlet channel 17 corresponds to the front end of the static spindle 19, the air inlet of the air outlet channel 15 corresponds to the rear end of the static spindle 19, the air outlet channel 15 on the vortex tube 18 is communicated with a directional air jet tube 14, the air outlet of the, the end face of the air outlet of the directional air injection pipe 14 is parallel to the plane of the input roller jaw and the output roller jaw, the distance between the two planes is 2-10 mm, the silk screen spraying device is positioned between the vortex wrapping device and the input roller jaw, the silk screen spraying device is composed of a metering pump 4, a first nanometer electrostatic spinning nozzle 3, a second nanometer electrostatic spinning nozzle 5 and a receiving plate 13, the receiving plate 13 is parallel to the plane of the input roller jaw and the output roller jaw, and is located below the plane, the first nanometer electrostatic spinning nozzle 3 and the second nanometer electrostatic spinning nozzle 5 are located above the plane where the input roller jaw and the output roller jaw are located, a silk screen spraying area is formed among the receiving surfaces of the first nanometer electrostatic spinning nozzle 3, the second nanometer electrostatic spinning nozzle 5 and the receiving plate 13, and the first nanometer electrostatic spinning nozzle 3 and the second nanometer electrostatic spinning nozzle 5 are respectively connected to the metering pump 4 through communicating pipes;

when the on-line operation multi-feather down spinning machine works, the on-line operation multi-feather down spinning yarn enters the infiltration tank 7 containing a penetrant KFC solution with the concentration of 0.1-0.5% from a yarn inlet through a yarn inlet groove wheel 6 on the infiltration tank 7, the multi-feather down spinning yarn sequentially winds the first infiltration sheave 8 and the second infiltration sheave 10, after being completely infiltrated in the solution, the multi-feather down spinning yarn passes through a yarn outlet sheave 9 on the infiltration tank 7, is output from a yarn outlet, and is input into a silk screen injection area through an input roller jaw, the spinning speeds of the first nano electrostatic spinning nozzle 3 and the second nano electrostatic spinning nozzle 5, the first nano electrostatic spinning nozzle 3 and the second nano electrostatic spinning nozzle 5 are externally connected with a high-voltage direct-current power supply 2 of 10KV-100KV, a receiving plate 13 is grounded, a high-voltage field is formed among the first nano electrostatic spinning nozzle 3, the second nano electrostatic spinning nozzle 5 and the receiving plate 13, and the first nano electrostatic spinning nozzle 3 and the second nano electrostatic spinning nozzle 5 continuously spray nano electrostatic spinning nano fine nano electrostatic spinning silk screen to the surface, covering the hairiness of the main part of the multi-hairiness yarn, wherein the nano-micro silk net cannot be in close contact with the main part of the yarn and is not in full mixed contact with the hairiness of the yarn, and the nano-micro silk net is easy to fall off by external force; 4-7MPA compressed airflow enters an air inlet pipeline 17 of a vortex device, is sprayed into a vortex chamber to form airflow vortex, enters an air jet pipe 14 through an air outlet channel 15, is directionally sprayed out from an air outlet of the air jet pipe 14, runs to multi-hairiness yarns covered with a nano-micro silk screen below the air outlet, under the action of the airflow, hairiness and the micro-nano silk screen synchronously extend along the airflow direction, at the moment, the micro-nano silk screen is tightly contacted with a yarn main body and is fully mixed and contacted with yarn hairiness, then the multi-hairiness yarns enter the vortex device of a vortex wrapping device, under the combined action of the airflow vortex and the nano-micro silk screen, network consolidation wrapping is carried out on the hairiness on the surface of the yarns, the yarns are simultaneously subjected to 1.5 times of drafting treatment of an input roller jaw and an output roller jaw, the twist readjustment of a yarn main body is stimulated, the slip extension of hook fibers in the yarn, the mechanical structure of the yarn is optimized in multiple scales to strengthen the yarn body, and the yarn after being wrapped and strengthened is output from a nip of an output roller.

The following description is provided for further details of the invention with reference to the post-processing of different types of yarn.

Example 1: spooling process, ultra-smooth enhanced treatment of Ne60 English polyester/cotton blended yarn

On a bobbin winder, a screw and nut fixing device is adopted, and the ultra-smooth enhancement processing device is fixedly arranged between a cop package and a yarn guide hook of a 1332M-D100 type domestic bobbin winder through a substrate 1; the concentration of the penetrating agent KFC solution in the infiltration tank 7 is 0.2%, and the temperature of the solution is kept at 70 ℃; the draft multiple between the input roller 12 and the output roller 21 is set to be 1.5 times; 3 silk screen composite wrapping units are arranged between an input roller jaw and an output roller jaw, when a silk screen spraying device conducts nano-spinning, a PVB ethanol solution with the mass concentration of 8% is selected as a nano-spinning solution, the voltage of a high-voltage direct-current power supply 2 is selected as 50KV, the vertical distances between a first nano electrostatic spinning nozzle 3 and a second nano electrostatic spinning nozzle 5 and the receiving surface of a receiving plate 13 are equal, 100 millimeters are selected, the distance between the receiving plate 13 and yarns is 10 millimeters, and the fineness range of PVB fibers in the microfiber net sprayed from the spinning nozzles is 50-170 nanometers; parallelly introducing compressed steam flow with the steam temperature of 130 ℃ and the air pressure of 5.5MPa into an air inlet pipeline 17 of each swirler; the end face of the air outlet of the directional air injection pipe 9 is parallel to the central axis of the yarn inlet channel of the yarn drawing pipe 16, and the distance between the end face and the central axis is 5 mm; during spooling, Ne60 English polyester/cotton blended Z twisted yarn is unwound from a cop package at the speed of 1000 m/min, passes through a yarn guide component and a tension device in sequence in a tensioning state, runs to a yarn inlet grooved wheel 6 on a wetting groove 7, enters the wetting groove 7 from a yarn inlet, sequentially rounds a first wetting grooved wheel 8 and a second wetting grooved wheel 10, is completely wetted in a solution, passes through a yarn outlet grooved wheel 9 on the wetting groove 7, is output from a yarn outlet, enters a first silk screen composite wrapping unit through an input roller jaw, and is sprayed with a micro-nano silk screen on the surface of the yarn in a silk screen spraying area of the first silk screen composite wrapping unit, and the micro-nano silk screen is mixed with a polyester/cotton blended yarn main body and surface wet hairiness; the terylene/cotton blended yarn sprayed with the micro-nano silk screen continuously runs to the lower part of an air outlet of the directional air injection pipe 14, wet hairiness on the surface of the terylene/cotton blended yarn and the micro-nano silk screen are directionally stretched under the action of air flow blowing of the air outlet, the terylene/cotton blended yarn is subjected to uniform silk screen adhesion treatment, the terylene/cotton blended yarn subjected to uniform silk screen adhesion treatment enters a vortex chamber of a vortex device, silk screen consolidation wrapping is carried out on hairiness on the surface of the yarn under the combined action of air flow vortex and the silk screen, a consolidation type self-locking wrapping structure is formed between the silk screen and the hairiness, and the phenomenon that after the subsequent use of friction of the yarn, washing of corresponding loose fabric and multiple times of friction, the head end of the hairiness is still easy to be unwound and pulled out, and more; the yarns subjected to silk screen consolidation wrapping sequentially enter the second silk screen composite wrapping unit and the third silk screen composite wrapping unit, and the hairiness on the surface of the polyester/cotton blended yarn which is not completely wrapped is subjected to silk screen consolidation wrapping treatment again, so that the multi-time reinforced silk screen consolidation wrapping is realized, and the technical problem of how to efficiently and efficiently consolidate the multi-hairiness yarns in a super-smooth manner at high speed and repair the structural defects of the surface layer of the multi-hairiness yarns once for all is solved; meanwhile, the terylene/cotton blended yarn is subjected to 1.5 times of drafting treatment of an input roller jaw and an output roller jaw, so that the twist and the repetition of a yarn main body are excited to adjust, hook fibers in the yarn main body slide and stretch, and the molecules in fully-stretched fibers are induced to be oriented and crystallized, and the mechanical structure of the yarn is optimized in multiple scales to strengthen the yarn body. The yarn after the ultra-smooth enhanced treatment is output through a nip of an output roller, then sequentially passes through a yarn cleaning device, a waxing device and an automatic stop detection device of a bobbin winder, and finally is wound on a copper tube under the action of a grooved drum. The yarn finish degree is expressed by adopting the amount of hairiness on the surface of the yarn in the field of yarn processing, and the lower the hairiness amount is, the higher the finish degree is; the test statistic results show that: the Ne60 English count 60/40 polyester/cotton blended cheese yarn treated by the method has greatly improved hairiness and strength, wherein the hairiness of 3 mm is reduced from 161.20 of original cheese to 10.33, the strength of the yarn is improved from 170.20 cn to 192.00 cn, and the yarn evenness index is slightly improved.

Claims

1. A method for ultra-smooth enhancement treatment of a multi-feather yarn is characterized by comprising the following steps: an ultra-smooth enhancement treatment device is arranged on the running route of each hairy yarn, the ultra-smooth enhancement treatment device consists of a base plate (1), a soaking groove (7), an input roller jaw, a silk screen composite wrapping unit and an output roller jaw, the soaking groove (7), the input roller jaw, the silk screen composite wrapping unit and the output roller jaw are sequentially and fixedly arranged on the surface of the base plate (1), a first soaking sheave (8) and a second soaking sheave (10) are arranged in the soaking groove (7), the upper end of the soaking groove (7) is provided with a yarn inlet and a yarn outlet, the yarn inlet is provided with a yarn inlet sheave (6), the yarn outlet is provided with a yarn outlet sheave (9), the first soaking sheave (8), the second soaking sheave (10), the yarn inlet sheave (6) and the yarn outlet sheave (9) are mutually parallel and are arranged on the same vertical plane, an input roller is formed by meshing an input roller (12) and an input rubber roll (11) which are vertically arranged on the surface of the base plate (1), the output roller jaw is formed by meshing an output roller (21) and an output rubber roll (20) which are vertically arranged on the board surface of a base plate (1), the input roller jaw and the output roller jaw are on the same plane, a silk screen composite wrapping unit is positioned between the input roller jaw and the output roller jaw, at least 1 silk screen composite wrapping unit is provided, the silk screen composite wrapping unit is composed of a silk screen spraying device and a vortex wrapping device, the vortex wrapping device is composed of a directional air injection pipe (14) and a vortex device, the vortex device is composed of a yarn guiding pipe (16), a static ingot (19) and a vortex pipe (18), the front end of the vortex pipe (18) is provided with the yarn guiding pipe (16), a yarn inlet channel is arranged in the yarn guiding pipe (16), the static ingot (19) is embedded in the rear end of the vortex pipe (18), the front end of the static ingot (19) is in a conical shape, and the front end of the static ingot (19) corresponds to the yarn guiding pipe, a vortex chamber is formed between the front end of a static spindle (19) and the inner wall of a vortex tube (18), a yarn outlet channel is arranged in the static spindle (19), the central axis of the yarn outlet channel is coincident with the central axis of a yarn inlet channel and is positioned on the plane where an input roller jaw and an output roller jaw are positioned, an air inlet channel (17) and an air outlet channel (15) are arranged on the vortex tube (18), the air inlet channel (17) and the air outlet channel (15) are communicated with the vortex chamber, the air outlet of the air inlet channel (17) is corresponding to the front end of the static spindle (19), the air inlet of the air outlet channel (15) is corresponding to the rear end of the static spindle (19), the air outlet channel (15) on the vortex tube (18) is communicated with a directional air injection tube (14), the air outlet of the directional air injection tube (14) is in a horn mouth shape, the air outlet of the directional air injection tube (14) is positioned between the vortex device and a silk screen spraying device, and the, the distance between the two planes is 2-10 mm, the silk screen spraying device is positioned between the vortex wrapping device and the input roller jaw, the silk screen spraying device is composed of a metering pump (4), a first nanometer electrostatic spinning nozzle (3), a second nanometer electrostatic spinning nozzle (5) and a receiving plate (13), the receiving plate (13) is parallel to the planes of the input roller jaw and the output roller jaw, and is located below the plane, the first nanometer electrostatic spinning nozzle (3) and the second nanometer electrostatic spinning nozzle (5) are located above the plane where the input roller jaw and the output roller jaw are located, a silk screen spraying area is formed among the receiving surfaces of the first nanometer electrostatic spinning nozzle (3), the second nanometer electrostatic spinning nozzle (5) and the receiving plate (13), and the first nanometer electrostatic spinning nozzle (3) and the second nanometer electrostatic spinning nozzle (5) are respectively connected to the metering pump (4) through communicating pipes;

when the on-line operation type electrostatic spinning device works, a multi-feather yarn enters the soaking tank (7) containing a penetrant KFC solution with the concentration of 0.1-0.5% from a yarn inlet through a yarn inlet grooved pulley (6) on the soaking tank (7), sequentially winds around a first soaking grooved pulley (8) and a second soaking grooved pulley (10), is completely soaked in the solution, passes through a yarn outlet grooved pulley (9) on the soaking tank (7), is output from a yarn outlet, and is input into a silk screen spraying area through an input roller jaw, the spinning speeds of a first nano electrostatic spinning nozzle (3) and a second nano electrostatic spinning nozzle (5), a high-voltage direct-current power supply (2) of 10KV-100KV is externally connected with the first nano electrostatic spinning nozzle (3) and the second nano electrostatic spinning nozzle (5), a receiving plate (13) is grounded, and a high-voltage static field is formed among the first nano electrostatic spinning nozzle (3), the second nano electrostatic spinning nozzle (5) and the receiving plate (13), under the control of a metering pump (4), a first nano electrostatic spinning nozzle (3) and a second nano electrostatic spinning nozzle (5) continuously spray a nano-micro screen to the surface of a multi-hair-feather yarn to cover the hair feather of the main body of the multi-hair-feather yarn, 4-7MPA compressed air flow enters an air inlet pipeline (17) of a vortex device to be sprayed into the vortex chamber to form air flow vortex, the air flow vortex enters an air spraying pipe (14) through an air outlet channel (15), the air is directionally sprayed out from an air outlet of the air spraying pipe (14), the multi-hair-feather yarn covered with the nano-micro screen runs to the lower part of the air outlet, the hair feather and the micro-nano screen synchronously extend along the air flow direction under the action of the air flow, then the multi-hair-feather yarn enters the vortex device of a vortex wrapping device, under the combined action of the air flow vortex and the nano-micro screen, the network consolidation wrapping is carried out on the hair feather on the surface of the yarn, the twisting readjustment of the yarn main body is excited, the hook fibers in the yarn main body are caused to slide and stretch, the molecular orientation crystallization in the fully-stretched fibers is induced, the mechanical structure of the yarn is optimized in a multi-scale mode to reinforce the yarn body, and the yarn after being wrapped and reinforced is output from a nip of an output roller.