CN108930079B - Ecological blended yarn production method - Google Patents
Ecological blended yarn production method Download PDFInfo
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- CN108930079B CN108930079B CN201811179471.8A CN201811179471A CN108930079B CN 108930079 B CN108930079 B CN 108930079B CN 201811179471 A CN201811179471 A CN 201811179471A CN 108930079 B CN108930079 B CN 108930079B
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/38—Threads in which fibres, filaments, or yarns are wound with other yarns or filaments, e.g. wrap yarns, i.e. strands of filaments or staple fibres are wrapped by a helically wound binder yarn
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/20—Cellulose-derived artificial fibres
- D10B2201/22—Cellulose-derived artificial fibres made from cellulose solutions
- D10B2201/24—Viscose
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
The invention provides an ecological blended yarn production method, which comprises the steps of selecting natural cellucotton, cellulose fiber modal and viscose as raw materials, randomly distributing and arranging the cotton fiber, the modal fiber and the viscose in the cross section of the ecological blended yarn, processing the cotton fiber to obtain combed sliver, processing the modal fiber and the viscose respectively to obtain corresponding raw slivers, processing the obtained modal raw slivers and the viscose raw slivers together through a drawing frame to obtain modal/viscose mixed pre-drawing, mixing the combed sliver, the modal/viscose mixed pre-drawing and the combed sliver through the drawing frame to obtain cotton/modal/viscose mixed slivers, and processing the obtained cotton/modal/viscose mixed slivers through a roving frame and a spinning frame to obtain the final raw sliver blended yarn.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to an ecological blended yarn production method.
Background
With the continuous progress of the times, the requirements of people on the garment materials are continuously improved, and the textile garment industry is in an age of pursuing fashion, diversification and high quality at present. Therefore, new requirements are also put forward on the development of textile raw materials and textile processes. Among them, the high quality and performance of textiles and the cleanliness of production and processing become the main development directions of modern textile industry, and are also effective ways to improve the grade and added value of products. With the improvement of modern living standard, the demand of people for healthy and environment-friendly ecological textiles is continuously rising, and therefore, the processing of ecological textiles, especially ecological yarns, has been gradually paid attention to. Since the ecological characteristics of the yarn are directly determined by the characteristics of the fiber of the spun yarn, blending with a plurality of ecological fibers realizes the ecological characteristics of the spun yarn and realizes a plurality of functionalities of the spun yarn by mixing various fibers, which is a popular problem in the field of spinning. However, due to the large difference in properties between different types of ecological fibers, the uniformity of mixing when mixing with each other is still difficult to control, and the final yarn quality is affected.
Aiming at the problems, the invention provides an ecological blended yarn production method, which comprises the steps of selecting natural fiber cotton, cellulose fiber modal and viscose as raw materials, processing the cotton fibers to obtain combed cotton slivers, respectively processing the modal fibers and the viscose to obtain corresponding raw slivers, processing the obtained modal raw slivers and the viscose raw slivers together through a drawing frame to obtain modal/viscose mixed pre-drawing, mixing the combed cotton slivers, the modal/viscose mixed pre-drawing and the combed cotton slivers through the drawing frame to obtain cotton/modal/viscose mixed slivers, and processing the obtained cotton/modal/viscose mixed slivers through a roving frame and a spinning frame to obtain the final raw sliver blended yarn.
Disclosure of Invention
The invention aims to provide an ecological blended yarn production method, which is used for producing blended yarns with ecological characteristics and uniformly mixed various ecological fibers.
In order to achieve the purpose, the invention relates to an ecological blended yarn, which is formed by blending natural fiber cotton, cellulose fiber Modal and viscose as raw materials, wherein the cotton fiber comprises 70% of long stapled cotton fiber and 30% of machine-harvested cotton fiber, the long stapled cotton comprises Aksu cotton 337 with the average length of 37.5mm, the impurity content of 3.3%, the Ma clone value of 4.4 and the short fiber content of 6.2%, Aksu cotton 337 with the average length of 37.3mm, the impurity content of 3.1%, the Ma clone value of 4.5 and the short fiber content of 6.2%, Aksu cotton 336 with the average length of 36.5mm, the impurity content of 2.4%, the Ma clone value of 4.2 and the short fiber content of 8.6%, and the machine-harvested cotton fiber adopts Kanzhi cotton with the average length of 29.1mm, the impurity content of 2.5%, the Ma clone value of 4.4 and the short fiber content of 11.1%; the modal fiber comprises 40% linear density 1.30dtex, average length 36mm, dry break strength 3.48cN/dtex, dry elongation at break 11.09%, wet break strength 1.88cN/dtex, wet elongation at break 12.32% of Lanjing modal, and 56% linear density 1.30dtex, average length 35mm, dry strength at break 3.41cN/dtex, dry elongation at break 12.72%, wet strength at break 2.09cN/dtex, wet elongation at break 12.68% of Lanjing modal, and 4% Modal backset; the viscose fibers comprise 40 percent of Tangshansu viscose with the average length of 37.4mm, the impurity content of 3.1 percent, the dry strength variation coefficient of 10.5 percent, the linear density of 1.66dtex and the defect of 0.5mg/100g, 30 percent of Tangshansu viscose with the average length of 35.1mm, the impurity content of 3.5 percent, the dry strength variation coefficient of 10.5 percent, the linear density of 1.71dtex and the defect of 0.4mg/100g, 30 percent of Tangshansu viscose with the average length of 36.3mm, the impurity content of 3.2 percent, the dry strength variation coefficient of 10.3 percent, the linear density of 1.73dtex and the defect of 0.3mg/100 g; and the average length, the average linear density and the average elastic recovery of the cotton fiber, the viscose fiber and the modal fiber after cotton blending are kept the same; the ecological blended yarn is spun by an ecological blended roving through a spinning machine, the cross section of the ecological blended roving is arranged in a layered structure and totally comprises 108 layers, the 108 layers are cotton fiber layers and Modal/viscose mixed fiber layers which are alternately arranged, the ration of the cotton fiber layers is consistent with that of the Modal/viscose mixed fiber layers, the outmost layer is a cotton fiber layer, the secondary outer layer is a Modal/viscose mixed fiber layer, the two fiber layers are sequentially and alternately arranged, the cotton fibers in the cotton fiber layers are mutually interlaced, the cotton fibers in the outer layers of the cotton fiber layers are mutually interlaced with the cotton fibers in the cotton fiber layers on one hand and the viscose fibers in the inner layers and the outer layers of the Modal/viscose mixed fiber layers on the other hand, the Modal/viscose mixed fiber layers comprise 6 layers, and the 6 layers are alternately arranged of the Modal fiber layers and the viscose fiber layers, the quantification of the modal fiber layer and the viscose mixed fiber layer is kept consistent, wherein the outermost layer is a viscose fiber layer, the second outer layer is a modal fiber layer, and then the two fiber layers are arranged alternately in sequence; the cross section of the ecological blended yarn is randomly distributed and arranged by cotton fibers, modal fibers and viscose fibers.
The invention relates to a production method of ecological blended yarn, which specifically comprises the following steps:
the first step is as follows: preparing combed cotton slivers from cotton fibers by sequentially adopting an FA009 reciprocating type bale plucker, an FA125 weight separator, an FA105 single axial flow cotton opener, an FA029 multi-bin cotton blender, an FA116 cotton cleaner, an FA179B cotton box, an FA203A cotton carding machine, an FA320A drawing frame, an E32 drawing frame and a JSOF 286 combing machine;
the second step is that: preparing viscose raw sliver by sequentially adopting an FA009 reciprocating type bale plucker, an FA156 dust removal machine, an FA105 single axial flow cotton opener, an FA029 multi-bin cotton mixer, an FA116 cotton cleaner, an FA179B cotton box and an FA203A cotton carding machine;
the third step: preparing the modal fibers into modal slivers by sequentially adopting an FA009 automatic bale plucker, an FA125 weight separator, an FA105A single-axial flow cotton opener, an FA029 multi-bin cotton mixer, an FA179 cotton box, an FA116-165 main impurity remover, an FA156 micro-dust remover, an JWF1171 cotton box and an FA203C type cotton carding machine;
the fourth step: preparing modal/viscose mixed pre-drawing by using viscose raw slivers and modal raw slivers by using a JWF1310 drawing frame, wherein the prepared modal/viscose mixed pre-drawing is the same as the fixed quantity of a combed cotton sliver, the fixed quantity of the viscose raw slivers and the fixed quantity of the modal raw slivers are kept the same, six raw slivers are fed into the drawing frame and comprise three viscose raw slivers and three modal raw slivers, the viscose raw slivers and the modal raw slivers are fed in a staggered mode, the six raw slivers are sequentially arranged into the viscose raw slivers, the modal raw slivers, the six raw slivers are directly stretched to obtain the modal/viscose mixed pre-drawing after being fed into the 1310 drawing frame, mutual slippage occurs between the viscose raw slivers and fibers in the modal raw slivers in the stretching process, so that the viscose raw slivers are stretched to obtain a viscose fiber bundle, the modal raw slivers are stretched to obtain a modal fiber bundle, the fibers in the viscose and modal slivers are slightly transferred in the respective slivers, but mutual transfer does not occur between the two slivers, so that the prepared modal/viscose mixed pre-drawing is layered and staggered arrangement of viscose fiber bundles and modal fiber bundles, and comprises six layers, wherein the six layers are sequentially arranged into viscose fiber bundles, modal fiber bundles, viscose fiber bundles and modal fiber bundles, and the viscose fiber bundles and the modal fiber bundles have the same quantitative amount and have extremely weak twist;
the fifth step: the modal/viscose mixed pre-drawing and the combed cotton sliver are jointly drawn by an FA326A drawing machine to obtain a cotton/modal/viscose first mixed sliver; six slivers are fed into a drawing frame and comprise three modal/viscose mixed pre-drawing strips and three combed cotton slivers, the modal/viscose mixed pre-drawing strips and the combed cotton slivers are fed in a staggered mode, the six slivers are sequentially arranged into the combed cotton slivers, the modal/viscose mixed pre-drawing strips, the combed cotton slivers and the modal/viscose mixed pre-drawing strips, the six slivers are fed into an FA326A drawing frame and then are directly drawn to obtain a cotton/modal/viscose first mixed sliver, the modal/viscose mixed pre-drawing strips fed in the drawing process and fibers in the combed cotton slivers slide mutually, so that the combed cotton slivers are drawn to obtain a first cotton fiber bundle, the modal/viscose mixed pre-drawing strips are drawn to obtain a first modal/viscose fiber bundle, the fibers in the modal/viscose mixed pre-drawing sliver and the combed cotton sliver are slightly transferred in the respective sliver, but the fibers are not mutually transferred between the two slivers, so that the prepared cotton/modal/viscose first mixed sliver is in a layered staggered arrangement of modal/viscose fiber bundles and cotton fiber bundles, comprises six layers, and the six layers are sequentially arranged into a first cotton fiber bundle, a first modal/viscose fiber bundle, a first cotton fiber bundle and a first modal/viscose fiber bundle, and the first cotton fiber bundle and the first modal/viscose fiber bundle have the same quantitative quantity and have extremely weak twist;
and a sixth step: the prepared cotton/modal/viscose first mixed sliver is drawn by a FA326A drawing frame to obtain a cotton/modal/viscose second mixed sliver; feeding six cotton/modal/viscose first mixed strips into a drawing frame, feeding the six cotton/modal/viscose first mixed strips into an FA326A drawing frame, directly drawing to obtain cotton/modal/viscose second mixed strips, and mutually sliding fibers in the fed cotton/modal/viscose first mixed strips in the drawing process, so that a first cotton fiber bundle is drawn to obtain a second cotton fiber bundle, the first modal/viscose fiber bundle is drawn to obtain a second modal/viscose fiber bundle, wherein the fibers in the first cotton fiber bundle in the cotton/modal/viscose first mixed strips are weakly transferred in the respective fiber bundles, the modal fibers in the first modal/viscose fiber bundle are weakly transferred in the modal fiber bundle, and the viscose fibers in the viscose fiber bundle are weakly transferred in the viscose fiber bundle, but mutual transfer does not occur between the two fiber bundles, so that the prepared cotton/modal/viscose second mixed strip is formed by staggered arrangement of modal/viscose fiber bundles and cotton fiber bundles in a layered mode, and comprises 36 layers, the 36 layers are sequentially arranged in staggered arrangement of a second cotton fiber bundle and a second modal/viscose fiber bundle, and the second cotton fiber bundle and the second modal/viscose fiber bundle have the same quantitative quantity and have extremely weak twist;
the seventh step: the prepared second cotton/modal/viscose mixed sliver is drawn by a FA326A drawing frame to obtain a third cotton/modal/viscose mixed sliver; feeding six cotton/modal/viscose second mixed strips into a drawing frame, feeding the six cotton/modal/viscose second mixed strips into an FA326A drawing frame, directly drawing to obtain a cotton/modal/viscose third mixed strip, and mutually sliding fibers in the fed cotton/modal/viscose second mixed strips in the drawing process, so that a second cotton fiber bundle is drawn to obtain a third cotton fiber bundle, and the second modal/viscose fiber bundle is drawn to obtain a third modal/viscose fiber bundle, wherein the fibers in the second cotton fiber bundle in the cotton/modal/viscose second mixed strips are weakly transferred in the respective fiber bundles, the modal fibers in the second modal/viscose fiber bundle are weakly transferred in the modal fiber bundles, and the viscose fibers are weakly transferred in the viscose fiber bundles, but mutual transfer does not occur between the two fiber bundles, so that the prepared cotton/modal/viscose third mixed strip is formed by staggered arrangement of modal/viscose fiber bundles and cotton fiber bundles in a layered mode, and comprises 216 layers, the 216 layers are sequentially arranged in a staggered arrangement of a third cotton fiber bundle and a third modal/viscose fiber bundle, and the third cotton fiber bundle and the third modal/viscose fiber bundle have the same quantitative quantity and have extremely weak twist; the cross section of the obtained third cotton/modal/viscose mixed strip is in a cuboid shape, and third cotton fiber bundles and third modal/viscose fiber bundles in the cross section of the third mixed strip are arranged in the mixed strip in a layered and staggered mode along the horizontal direction;
eighth step: preparing cotton/modal/viscose blended roving from the prepared cotton/modal/viscose third mixed sliver by using an JWF1415 roving machine, feeding the cotton/modal/viscose third mixed sliver from a bell mouth through a rear roller, drawing the cotton/modal/viscose blended roving, and stretching the cotton/modal/viscose blended roving to obtain a first cotton/modal/viscose fiber belt with extremely weak twist, wherein the fibers in a third cotton fiber bundle in the cotton/modal/viscose third mixed sliver are weakly transferred in respective fiber bundles in the stretching process to obtain a cotton fiber belt, the modal fibers in the third modal/viscose fiber bundle are weakly transferred in the modal fiber bundle, the viscose fibers are weakly transferred in the viscose fiber bundle to obtain a modal/viscose blended fiber belt, but mutual transfer does not occur between the two fiber bundles, so that the produced first cotton/modal/viscose fiber belt is layered and staggered with the modal/viscose fiber belt and comprises 216 layers, the 216 layers are sequentially staggered with the cotton fiber belt and the modal/viscose fiber belt, the drafted first cotton/modal/viscose fiber belt adopts weak twisting to obtain cotton/modal/viscose mixed roving with a circular cross section, in the weak twisting process, fibers in the fiber belt which is distributed symmetrically relative to the middle width of the fiber belt in the first cotton/modal/viscose fiber belt are mutually transferred and intertwined to obtain a circular roving layer in the cotton/modal/viscose mixed roving, namely the fibers in the two symmetrical cotton fiber belts in the first cotton/modal/viscose fiber belt are mutually transferred and intertwined to obtain a circular cotton roving layer in the roving, the fibers in the two symmetrical modal/viscose fiber bands in the first cotton/modal/viscose fiber band are mutually transferred and intertwined to obtain a circular modal/viscose roving layer in the roving, so that the prepared cotton/modal/viscose mixed roving is in layered staggered arrangement of the modal/viscose roving layer and the cotton roving layer and comprises 108 layers, wherein the 108 layers are sequentially arranged into the staggered arrangement of the cotton roving layer and the modal/viscose roving layer from outside to inside, and the cotton roving layer and the modal/viscose roving layer have the same quantitative value and have weak twist;
the ninth step: the prepared cotton/modal/viscose mixed roving is processed by a DTM129 spinning frame to obtain final ecological blended yarn, one cotton/modal/viscose roving is fed from a bell mouth through a rear roller and is stretched to obtain a second cotton/modal/viscose fiber belt with extremely weak twist or even no twist, fibers of each roving layer in the cotton/modal/viscose mixed roving are firstly stretched and tightly pressed by a lower roller and a rear sizing roller, so that the cross section of the fed roving is pressed into a horizontal flat shape from a round shape, 108 cotton roving layers, cotton fibers, modal fibers and viscose fibers in the modal/viscose roving layers are sequentially staggered from outside to inside in the pressing process, the first random mixing of the cotton roving layers, the modal fibers and the viscose fibers is realized, in the stretching process, the fibers in the cotton/modal/viscose mixed roving pressed into a flat shape slide with each other, so that the linear density of the roving is reduced, on the other hand, the fibers can axially rotate in the sliding process, the rotating direction is opposite to the twisting direction of the mixed roving, so that the original twist in the mixed roving is removed, the fibers in the mixed roving are mutually transferred due to the rigidity and the elastic recovery of the fibers after the twist is removed, the average linear density and the elastic recovery of the selected cotton fibers, modal fibers and viscose fibers are the same, so that the cotton fibers, modal fibers and viscose fibers are randomly and mutually transferred after untwisting, the second random mixing of the three fibers is realized, and the second cotton/modal/viscose fiber belt obtained by drafting adopts the ecology of obtaining blended yarns/cotton/modal/viscose with circular cross sections through enforcement, in the process of strong twisting, the cotton fibers, the modal fibers and the fibers in the viscose fibers in the second cotton/modal/viscose fiber band are mutually and randomly transferred inside and outside under the action of strong twisting, so that the third random mixing of the three fibers is realized, and simultaneously, the three fibers are mutually intertwined, so that the ecological blended yarn with certain strength is obtained.
The method comprises the steps of selecting natural fiber cotton, cellulose fiber modal and viscose as raw materials, processing the cotton fiber to obtain combed cotton slivers, respectively processing the modal fiber and the viscose to obtain corresponding raw slivers, processing the obtained modal raw slivers and the viscose raw slivers together through a drawing frame to obtain modal/viscose mixed pre-drawing, mixing the combed cotton slivers, the modal/viscose mixed pre-drawing and the combed cotton slivers through the drawing frame to obtain cotton/modal/viscose mixed slivers, processing the obtained cotton/modal/viscose mixed slivers through a roving frame to obtain mixed roving with various fibers with obvious layering, processing the mixed roving to obtain final raw sliver blended yarns, and realizing random mixing of the three fibers through roller pressing and drafting in a spinning frame process, thereby realizing excellent mixing uniformity, And (3) producing the ecological blended yarn with comprehensive excellent finished yarn.
Detailed Description
An ecological blended yarn is formed by blending natural fiber cotton, cellulose fiber modal and viscose as raw materials, wherein the cotton fiber comprises 70% of long stapled cotton fiber and 30% of machine-harvested cotton fiber, the modal fiber comprises 40% of Lanjing modal with a linear density of 1.30dtex, an average length of 36mm, a dry breaking strength of 3.48cN/dtex, a dry elongation at break of 11.09%, a wet breaking strength of 1.88cN/dtex, a wet elongation at break of 12.32%, and 56% of Lanjing modal with a linear density of 1.30dtex, an average length of 35mm, a dry strength at break of 3.41cN/dtex, a dry elongation at break of 12.72%, a wet strength at break of 2.09cN/dtex, a wet elongation at break of 12.68%, and a modal fret of 4%; the viscose fiber comprises 40% of Syngnathus viscose, 30% of Siliquan viscose and 30% of Tangshansanyou viscose; the ecological blended yarn is spun by an ecological blended roving through a spinning frame, wherein the cross section of the ecological blended roving is arranged in a layered structure and totally comprises 108 layers, the 108 layers are cotton fiber layers and Modal/viscose mixed fiber layers which are alternately arranged, the quantification of the cotton fiber layers is consistent with that of the Modal/viscose mixed fiber layers, the outmost layer is a cotton fiber layer, the secondary outer layer is a Modal/viscose mixed fiber layer, the two fiber layers are sequentially and alternately arranged, the cotton fibers in the cotton fiber layers are mutually interlaced, the Modal/viscose mixed fiber layer comprises 6 layers, the 6 layers are the Modal fiber layers and the viscose fiber layers which are alternately arranged, the quantification of the Modal fiber layers is consistent with that of the viscose mixed fiber layers, the outmost layer is a viscose fiber layer, the secondary outer layer is a Modal fiber layer, and the two fiber layers are sequentially and alternately arranged, the modal fibers in the modal fiber layer are mutually interlaced, the viscose fibers of the viscose fiber layer in the modal/viscose mixed fiber layer are mutually interlaced with the viscose fibers in the viscose fiber layer on the one hand, and the modal fibers in the modal fiber layer and the modal fibers in the outer layer in the modal fiber layer on the other hand, and the modal fibers in the modal fiber layer and the cotton fibers in the modal fiber layer on the one hand, and the viscose fibers in the outer layer in the viscose mixed fiber layer on the other hand are mutually interlaced; the cross section of the ecological blended yarn is randomly distributed and arranged by cotton fibers, modal fibers and viscose fibers.
Taking the production of 40S ecological blended yarn with the blending ratio of cotton, modal and viscose being 1:1:1 as an example, the method specifically comprises the following steps:
the first step is as follows: preparing combed cotton slivers from cotton fibers by sequentially adopting an FA009 reciprocating type bale plucker, an FA125 weight separator, an FA105 single axial flow cotton opener, an FA029 multi-bin cotton blender, an FA116 cotton cleaner, an FA179B cotton box, an FA203A cotton carding machine, an FA320A drawing frame, an E32 drawing frame and a JSOF 286 combing machine; the specific process parameters are as follows:
table 1 FA009 type reciprocating bale plucker process
| Process parameters | Cotton | Terylene |
| Rotational speed of cotton grab beater (r/min) | 900 | 660 |
| Descending distance (mm) of cotton grabbing beater | 2 | 2 |
| Blade rib distance (mm) | -3 | 2 |
| Horizontal running speed (m/min) | 19 | 16 |
TABLE 2 FA105A Process for uniaxial opener
TABLE 3 FA029 type multi-bin cotton mixer process
| Process parameters | Cotton | Terylene |
| Angle spindle cord speed (m/min) | 54 | 50 |
| Rotational speed of cotton roller (r/min) | 726 | 582 |
| Cotton pulling roller speed (r/min) | 420 | 412 |
TABLE 4 FA116 Primary shaker
TABLE 5 FA320A drawing frame Process parameters
TABLE 6 JSF FA286 comber Process parameters
The second step is that: preparing viscose raw sliver by sequentially adopting an FA009 reciprocating type bale plucker, an FA156 dust removal machine, an FA105 single axial flow cotton opener, an FA029 multi-bin cotton mixer, an FA116 cotton cleaner, an FA179B cotton box and an FA203A cotton carding machine;
the third step: preparing the modal fibers into modal slivers by sequentially adopting an FA009 automatic bale plucker, an FA125 weight separator, an FA105A single-axial flow cotton opener, an FA029 multi-bin cotton mixer, an FA179 cotton box, an FA116-165 main impurity remover, an FA156 micro-dust remover, an JWF1171 cotton box and an FA203C type cotton carding machine; the specific process parameters are as follows:
table 7 cotton carding process design table
The fourth step: preparing modal/viscose mixed pre-drawing by using a JWF1310 drawing frame for viscose raw slivers and modal raw slivers, wherein the prepared modal/viscose mixed pre-drawing is the same as the fixed quantity of a combed cotton sliver, the fixed quantity of the viscose raw slivers and the fixed quantity of the modal raw slivers are kept the same, six raw slivers are fed into the drawing frame and comprise three viscose raw slivers and three modal raw slivers, the viscose raw slivers and the modal raw slivers are fed in a staggered mode, and the six raw slivers are sequentially arranged into the viscose raw slivers, the modal raw slivers, the viscose raw slivers, the modal raw slivers and the modal raw slivers;
the fifth step: the modal/viscose mixed pre-drawing and the combed cotton sliver are jointly drawn by an FA326A drawing machine to obtain a cotton/modal/viscose first mixed sliver; feeding six slivers into a drawing frame, wherein the drawing frame comprises three modal/viscose mixed pre-drawing strips and three combed cotton slivers, the modal/viscose mixed pre-drawing strips and the combed cotton slivers are fed in a staggered mode, and the six raw slivers are sequentially arranged into the combed cotton slivers, the modal/viscose mixed pre-drawing strips, the combed cotton slivers and the modal/viscose mixed pre-drawing strips;
and a sixth step: the prepared cotton/modal/viscose first mixed sliver is drawn by a FA326A drawing frame to obtain a cotton/modal/viscose second mixed sliver; feeding the six cotton/modal/viscose first mixed strips into a drawing frame, feeding the six cotton/modal/viscose first mixed strips into an FA326A drawing frame, and directly stretching to obtain cotton/modal/viscose second mixed strips;
the seventh step: the prepared second cotton/modal/viscose mixed sliver is drawn by a FA326A drawing frame to obtain a third cotton/modal/viscose mixed sliver; feeding a second mixed sliver of six cotton/modal/viscose into a drawing frame; the specific technological parameters of the three drawing steps are as follows:
table 8 drawing process design table
Eighth step: preparing cotton/modal/viscose blended roving from the prepared cotton/modal/viscose third mixed sliver by adopting a JWF1415 roving machine, feeding the cotton/modal/viscose third mixed sliver from a bell mouth through a rear roller, drawing the mixture to obtain a first cotton/modal/viscose fiber belt with extremely weak twist, and weakly twisting the first cotton/modal/viscose fiber belt obtained by drawing to obtain the cotton/modal/viscose blended roving with a circular cross section; the specific process parameters are as follows:
table 9 roving process design table
The ninth step: processing the prepared cotton/modal/viscose mixed roving by adopting a DTM129 spinning frame to obtain final ecological blended yarn, feeding the cotton/modal/viscose roving from a horn mouth through a rear roller, drawing and stretching to obtain a second cotton/modal/viscose fiber band with extremely weak twist or even no twist, and performing strong twisting on the second cotton/modal/viscose fiber band obtained by drawing to obtain the cotton/modal/viscose ecological blended yarn with a circular cross section; the specific process parameters are as follows:
watch 10 spinning process design watch
The quality of the produced yarn was tested as follows:
TABLE 11 ecological blended yarn quality test
Claims (1)
1. An ecological blended yarn production method comprises an ecological blended yarn, wherein the ecological blended yarn is formed by blending natural fiber cotton, cellulose fiber Modal and viscose as raw materials, the cotton fibers comprise 70% of long stapled cotton fibers and 30% of machine-harvested cotton fibers, the long stapled cotton fibers comprise Aksu cotton 337 with the average length of 37.5mm, the impurity content of 3.3%, the micronaire value of 4.4 and the short fiber content of 6.2%, Aksu cotton 337 with the average length of 37.3mm, the impurity content of 3.1%, the micronaire value of 4.5%, the short fiber content of 6.2%, Aksu cotton 336 with the average length of 36.5mm, the impurity content of 2.4%, the micronaire value of 4.2 and the short fiber content of 8.6%, and the machine-harvested cotton fibers adopt Nonzai cotton with the average length of 29.1mm, the impurity content of 2.5%, the micronaire value of 4.4 and the short fiber content of 11.1%; the modal fiber comprises 40% linear density 1.30dtex, average length 36mm, dry break strength 3.48cN/dtex, dry elongation at break 11.09%, wet break strength 1.88cN/dtex, wet elongation at break 12.32% of Lanjing modal, and 56% linear density 1.30dtex, average length 35mm, dry strength at break 3.41cN/dtex, dry elongation at break 12.72%, wet strength at break 2.09cN/dtex, wet elongation at break 12.68% of Lanjing modal, and 4% Modal backset; the viscose fibers comprise 40 percent of Tangshansu viscose with the average length of 37.4mm, the impurity content of 3.1 percent, the dry strength variation coefficient of 10.5 percent, the linear density of 1.66dtex and the defect of 0.5mg/100g, 30 percent of Tangshansu viscose with the average length of 35.1mm, the impurity content of 3.5 percent, the dry strength variation coefficient of 10.5 percent, the linear density of 1.71dtex and the defect of 0.4mg/100g, 30 percent of Tangshansu viscose with the average length of 36.3mm, the impurity content of 3.2 percent, the dry strength variation coefficient of 10.3 percent, the linear density of 1.73dtex and the defect of 0.3mg/100 g; and the average length, the average linear density and the average elastic recovery of the cotton fiber, the viscose fiber and the modal fiber after cotton blending are kept the same; the method is characterized in that: the ecological blended yarn is spun by an ecological blended roving through a spinning machine, the cross section of the ecological blended roving is arranged in a layered structure and totally comprises 108 layers, the 108 layers are cotton fiber layers and Modal/viscose mixed fiber layers which are alternately arranged, the ration of the cotton fiber layers is consistent with that of the Modal/viscose mixed fiber layers, the outmost layer is a cotton fiber layer, the secondary outer layer is a Modal/viscose mixed fiber layer, the two fiber layers are sequentially and alternately arranged, the cotton fibers in the cotton fiber layers are mutually interlaced, the cotton fibers in the outer layers of the cotton fiber layers are mutually interlaced with the cotton fibers in the cotton fiber layers on one hand and the viscose fibers in the inner layers and the outer layers of the Modal/viscose mixed fiber layers on the other hand, the Modal/viscose mixed fiber layers comprise 6 layers, and the 6 layers are alternately arranged of the Modal fiber layers and the viscose fiber layers, the quantification of the modal fiber layer and the viscose mixed fiber layer is kept consistent, wherein the outermost layer is a viscose fiber layer, the second outer layer is a modal fiber layer, the two fiber layers are sequentially arranged alternately, modal fibers in the modal fiber layer are mutually interlaced, the viscose fibers of the viscose fiber layer in the modal/viscose mixed fiber layer are mutually interlaced with the viscose fibers in the viscose fiber layer on one hand and the modal fibers in the viscose fiber layer on the other hand, the modal fibers of the modal fiber layer in the modal/viscose mixed fiber layer are mutually interlaced with cotton fibers in the modal fiber layer on the one hand and the viscose fibers in the viscose mixed fiber layer on the other hand; the cross section of the ecological blended yarn is randomly distributed and arranged by cotton fibers, modal fibers and viscose fibers; the method specifically comprises the following steps:
the first step is as follows: preparing combed cotton slivers from cotton fibers by sequentially adopting an FA009 reciprocating type bale plucker, an FA125 weight separator, an FA105 single axial flow cotton opener, an FA029 multi-bin cotton blender, an FA116 cotton cleaner, an FA179B cotton box, an FA203A cotton carding machine, an FA320A drawing frame, an E32 drawing frame and a JSOF 286 combing machine;
the second step is that: preparing viscose raw sliver by sequentially adopting an FA009 reciprocating type bale plucker, an FA156 dust removal machine, an FA105 single axial flow cotton opener, an FA029 multi-bin cotton mixer, an FA116 cotton cleaner, an FA179B cotton box and an FA203A cotton carding machine;
the third step: preparing the modal fibers into modal slivers by sequentially adopting an FA009 automatic bale plucker, an FA125 weight separator, an FA105A single-axial flow cotton opener, an FA029 multi-bin cotton mixer, an FA179 cotton box, an FA116-165 main impurity remover, an FA156 micro-dust remover, an JWF1171 cotton box and an FA203C type cotton carding machine;
the fourth step: preparing modal/viscose mixed pre-drawing by using viscose raw slivers and modal raw slivers by using a JWF1310 drawing frame, wherein the prepared modal/viscose mixed pre-drawing is the same as the fixed quantity of a combed cotton sliver, the fixed quantity of the viscose raw slivers and the fixed quantity of the modal raw slivers are kept the same, six raw slivers are fed into the drawing frame and comprise three viscose raw slivers and three modal raw slivers, the viscose raw slivers and the modal raw slivers are fed in a staggered mode, the six raw slivers are sequentially arranged into the viscose raw slivers, the modal raw slivers, the six raw slivers are directly stretched to obtain the modal/viscose mixed pre-drawing after being fed into the 1310 drawing frame, mutual slippage occurs between the viscose raw slivers and fibers in the modal raw slivers in the stretching process, so that the viscose raw slivers are stretched to obtain a viscose fiber bundle, the modal raw slivers are stretched to obtain a modal fiber bundle, the fibers in the viscose and modal slivers are slightly transferred in the respective slivers, but mutual transfer does not occur between the two slivers, so that the prepared modal/viscose mixed pre-drawing is layered and staggered arrangement of viscose fiber bundles and modal fiber bundles, and comprises six layers, wherein the six layers are sequentially arranged into viscose fiber bundles, modal fiber bundles, viscose fiber bundles and modal fiber bundles, and the viscose fiber bundles and the modal fiber bundles have the same quantitative amount and have extremely weak twist;
the fifth step: the modal/viscose mixed pre-drawing and the combed cotton sliver are jointly drawn by an FA326A drawing machine to obtain a cotton/modal/viscose first mixed sliver; six slivers are fed into a drawing frame and comprise three modal/viscose mixed pre-drawing strips and three combed cotton slivers, the modal/viscose mixed pre-drawing strips and the combed cotton slivers are fed in a staggered mode, the six slivers are sequentially arranged into the combed cotton slivers, the modal/viscose mixed pre-drawing strips, the combed cotton slivers and the modal/viscose mixed pre-drawing strips, the six slivers are fed into an FA326A drawing frame and then are directly drawn to obtain a cotton/modal/viscose first mixed sliver, the modal/viscose mixed pre-drawing strips fed in the drawing process and fibers in the combed cotton slivers slide mutually, so that the combed cotton slivers are drawn to obtain a first cotton fiber bundle, the modal/viscose mixed pre-drawing strips are drawn to obtain a first modal/viscose fiber bundle, the fibers in the modal/viscose mixed pre-drawing sliver and the combed cotton sliver are slightly transferred in the respective sliver, but the fibers are not mutually transferred between the two slivers, so that the prepared cotton/modal/viscose first mixed sliver is in a layered staggered arrangement of modal/viscose fiber bundles and cotton fiber bundles, comprises six layers, and the six layers are sequentially arranged into a first cotton fiber bundle, a first modal/viscose fiber bundle, a first cotton fiber bundle and a first modal/viscose fiber bundle, and the first cotton fiber bundle and the first modal/viscose fiber bundle have the same quantitative quantity and have extremely weak twist;
and a sixth step: the prepared cotton/modal/viscose first mixed sliver is drawn by a FA326A drawing frame to obtain a cotton/modal/viscose second mixed sliver; feeding six cotton/modal/viscose first mixed strips into a drawing frame, feeding the six cotton/modal/viscose first mixed strips into an FA326A drawing frame, directly drawing to obtain cotton/modal/viscose second mixed strips, and mutually sliding fibers in the fed cotton/modal/viscose first mixed strips in the drawing process, so that a first cotton fiber bundle is drawn to obtain a second cotton fiber bundle, the first modal/viscose fiber bundle is drawn to obtain a second modal/viscose fiber bundle, wherein the fibers in the first cotton fiber bundle in the cotton/modal/viscose first mixed strips are weakly transferred in the respective fiber bundles, the modal fibers in the first modal/viscose fiber bundle are weakly transferred in the modal fiber bundle, and the viscose fibers in the viscose fiber bundle are weakly transferred in the viscose fiber bundle, but mutual transfer does not occur between the two fiber bundles, so that the prepared cotton/modal/viscose second mixed strip is formed by staggered arrangement of modal/viscose fiber bundles and cotton fiber bundles in a layered mode, and comprises 36 layers, the 36 layers are sequentially arranged in staggered arrangement of a second cotton fiber bundle and a second modal/viscose fiber bundle, and the second cotton fiber bundle and the second modal/viscose fiber bundle have the same quantitative quantity and have extremely weak twist;
the seventh step: the prepared second cotton/modal/viscose mixed sliver is drawn by a FA326A drawing frame to obtain a third cotton/modal/viscose mixed sliver; feeding six cotton/modal/viscose second mixed strips into a drawing frame, feeding the six cotton/modal/viscose second mixed strips into an FA326A drawing frame, directly drawing to obtain a cotton/modal/viscose third mixed strip, and mutually sliding fibers in the fed cotton/modal/viscose second mixed strips in the drawing process, so that a second cotton fiber bundle is drawn to obtain a third cotton fiber bundle, and the second modal/viscose fiber bundle is drawn to obtain a third modal/viscose fiber bundle, wherein the fibers in the second cotton fiber bundle in the cotton/modal/viscose second mixed strips are weakly transferred in the respective fiber bundles, the modal fibers in the second modal/viscose fiber bundle are weakly transferred in the modal fiber bundles, and the viscose fibers are weakly transferred in the viscose fiber bundles, but mutual transfer does not occur between the two fiber bundles, so that the prepared cotton/modal/viscose third mixed strip is formed by staggered arrangement of modal/viscose fiber bundles and cotton fiber bundles in a layered mode, and comprises 216 layers, the 216 layers are sequentially arranged in a staggered arrangement of a third cotton fiber bundle and a third modal/viscose fiber bundle, and the third cotton fiber bundle and the third modal/viscose fiber bundle have the same quantitative quantity and have extremely weak twist; the cross section of the obtained third cotton/modal/viscose mixed strip is in a cuboid shape, and third cotton fiber bundles and third modal/viscose fiber bundles in the cross section of the third mixed strip are arranged in the mixed strip in a layered and staggered mode along the horizontal direction;
eighth step: preparing cotton/modal/viscose blended roving from the prepared cotton/modal/viscose third mixed sliver by using an JWF1415 roving machine, feeding the cotton/modal/viscose third mixed sliver from a bell mouth through a rear roller, drawing the cotton/modal/viscose blended roving, and stretching the cotton/modal/viscose blended roving to obtain a first cotton/modal/viscose fiber belt with extremely weak twist, wherein the fibers in a third cotton fiber bundle in the cotton/modal/viscose third mixed sliver are weakly transferred in respective fiber bundles in the stretching process to obtain a cotton fiber belt, the modal fibers in the third modal/viscose fiber bundle are weakly transferred in the modal fiber bundle, the viscose fibers are weakly transferred in the viscose fiber bundle to obtain a modal/viscose blended fiber belt, but mutual transfer does not occur between the two fiber bundles, so that the produced first cotton/modal/viscose fiber belt is layered and staggered with the modal/viscose fiber belt and comprises 216 layers, the 216 layers are sequentially staggered with the cotton fiber belt and the modal/viscose fiber belt, the drafted first cotton/modal/viscose fiber belt adopts weak twisting to obtain cotton/modal/viscose mixed roving with a circular cross section, in the weak twisting process, fibers in the fiber belt which is distributed symmetrically relative to the middle width of the fiber belt in the first cotton/modal/viscose fiber belt are mutually transferred and intertwined to obtain a circular roving layer in the cotton/modal/viscose mixed roving, namely the fibers in the two symmetrical cotton fiber belts in the first cotton/modal/viscose fiber belt are mutually transferred and intertwined to obtain a circular cotton roving layer in the roving, the fibers in the two symmetrical modal/viscose fiber bands in the first cotton/modal/viscose fiber band are mutually transferred and intertwined to obtain a circular modal/viscose roving layer in the roving, so that the prepared cotton/modal/viscose mixed roving is in layered staggered arrangement of the modal/viscose roving layer and the cotton roving layer and comprises 108 layers, wherein the 108 layers are sequentially arranged into the staggered arrangement of the cotton roving layer and the modal/viscose roving layer from outside to inside, and the cotton roving layer and the modal/viscose roving layer have the same quantitative value and have weak twist;
the ninth step: the prepared cotton/modal/viscose mixed roving is processed by a DTM129 spinning frame to obtain final ecological blended yarn, one cotton/modal/viscose roving is fed from a bell mouth through a rear roller and is stretched to obtain a second cotton/modal/viscose fiber belt with extremely weak twist or even no twist, fibers of each roving layer in the cotton/modal/viscose mixed roving are firstly stretched and tightly pressed by a lower roller and a rear sizing roller, so that the cross section of the fed roving is pressed into a horizontal flat shape from a round shape, 108 cotton roving layers, cotton fibers, modal fibers and viscose fibers in the modal/viscose roving layers are sequentially staggered from outside to inside in the pressing process, the first random mixing of the cotton roving layers, the modal fibers and the viscose fibers is realized, in the stretching process, the fibers in the cotton/modal/viscose mixed roving pressed into a flat shape slide with each other, so that the linear density of the roving is reduced, on the other hand, the fibers can axially rotate in the sliding process, the rotating direction is opposite to the twisting direction of the mixed roving, so that the original twist in the mixed roving is removed, the fibers in the mixed roving are mutually transferred due to the rigidity and the elastic recovery of the fibers after the twist is removed, the average linear density and the elastic recovery of the selected cotton fibers, modal fibers and viscose fibers are the same, so that the cotton fibers, modal fibers and viscose fibers are randomly and mutually transferred after untwisting, the second random mixing of the three fibers is realized, and the second cotton/modal/viscose fiber belt obtained by drafting adopts the ecology of obtaining blended yarns/cotton/modal/viscose with circular cross sections through enforcement, in the process of strong twisting, the cotton fibers, the modal fibers and the fibers in the viscose fibers in the second cotton/modal/viscose fiber band are mutually and randomly transferred inside and outside under the action of strong twisting, so that the third random mixing of the three fibers is realized, and simultaneously, the three fibers are mutually intertwined, so that the ecological blended yarn with certain strength is obtained.
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