CN114411296A - Regenerated cotton fiber blended yarn, preparation method thereof and cloth - Google Patents
Regenerated cotton fiber blended yarn, preparation method thereof and cloth Download PDFInfo
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- CN114411296A CN114411296A CN202111606096.2A CN202111606096A CN114411296A CN 114411296 A CN114411296 A CN 114411296A CN 202111606096 A CN202111606096 A CN 202111606096A CN 114411296 A CN114411296 A CN 114411296A
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 149
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 239000004744 fabric Substances 0.000 title claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 111
- 238000009960 carding Methods 0.000 claims abstract description 35
- 238000007383 open-end spinning Methods 0.000 claims abstract description 26
- 238000007664 blowing Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 19
- 239000012535 impurity Substances 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 244000144992 flock Species 0.000 claims 1
- 230000000052 comparative effect Effects 0.000 description 24
- 239000002699 waste material Substances 0.000 description 7
- 238000009987 spinning Methods 0.000 description 5
- 235000021190 leftovers Nutrition 0.000 description 3
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000004043 dyeing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000007639 printing Methods 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000010784 textile waste Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
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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
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention discloses a regenerated cotton fiber blended yarn, a preparation method thereof and cloth, wherein the blended yarn comprises the following raw materials in percentage by mass: 3 to 7 percent of Jacsell fiber, 0 to 3 percent of ginned cotton fiber and 92 to 95 percent of regenerated cotton fiber; the Jacobian fibers are made of 100% pure wood pulp, and the fiber length of the Jacobian fibers is more than or equal to 30 mm. The preparation method comprises blowing, cotton carding, drawing and rotor spinning. The cloth is made of the blended yarn of the present application. The blended yarn is low in cost and good in performance.
Description
Technical Field
The application relates to the technical field of spinning, in particular to regenerated cotton fiber blended yarn and a preparation method and cloth thereof.
Background
The main source of the regenerated cotton fiber is textile waste in the production processes of textile mills, printing and dyeing mills and garment factories, and comprises waste silk, waste flower, waste silk, waste yarn, crushed cloth pieces, leftovers, leftover materials and other waste materials generated in the processing processes of opening, spinning, weaving, printing and dyeing, cutting and the like, and the waste materials comprise the waste materials and the leftover materials.
The main raw material of the regenerated cotton yarn is regenerated cotton fiber, but the regenerated cotton yarn prepared from the regenerated cotton fiber has relatively low mechanical strength because the fiber length of the regenerated cotton fiber is short, the mechanical strength is relatively low, the regenerated cotton yarn is easy to break, and the cohesive force and the spinnability are poor.
In order to improve the mechanical strength of the regenerated cotton yarn, a certain amount of ginned cotton fiber can be added, but the price of the ginned cotton fiber is high, and the dosage of the ginned cotton fiber can reach more than 15 percent, so that the requirement of the quality of the air spinning can be met.
Disclosure of Invention
In order to reduce the spinning cost and reduce the using amount of the ginned cotton fiber, the application provides the regenerated cotton fiber blended yarn and the preparation method thereof.
In a first aspect, the application provides a regenerated cotton fiber blended yarn, which comprises the following raw materials in percentage by mass: 3 to 7 percent of Jacsell fiber, 0 to 3 percent of ginned cotton fiber and 92 to 95 percent of regenerated cotton fiber;
the Jacobian fibers are made of 100% pure wood pulp, and the fiber length of the Jacobian fibers is more than or equal to 30 mm.
3% -7% of Jacobian fibers are added into the regenerated cotton fibers and the ginned cotton fibers, so that the using amount of the ginned cotton fibers can be reduced (the using amount is reduced to 0% -3% from more than 15%), and various performances of the blended yarns can be improved.
Specifically, the price of the ginned cotton fiber is generally 14000 yuan/ton, the price of the Jacsell fiber is 11000 yuan/ton, the price of the regenerated cotton fiber cotton is 8000 yuan/ton, and the price of the Yasell fiber adopted by the application is lower than that of the ginned cotton fiber, so that the cost of the blended yarn can be effectively reduced.
The Jachel fiber prepared from 100% pure wood pulp has the characteristics of softness, water absorption, air permeability, skin friendliness and the like, in addition, the fiber length of the Jachel fiber adopted by the application is more than or equal to 30mm, and after the Yahel fiber is blended with regenerated cotton fiber cotton and ginned cotton fiber, the single yarn strength, the breaking strength and the elongation of the blended yarn can be effectively increased.
Specifically, the fiber length of the regenerated cotton fiber is generally 15mm, the fiber length of the lint fiber is generally 28mm, and for the blended yarn, the longer the fiber length of the raw material is, the higher the yarn single yarn strength, breaking strength and elongation of the prepared blended yarn is. The Yasaier fiber has the fiber length of more than or equal to 30mm as a whole, and can effectively increase the single yarn strength, breaking strength and elongation of blended yarns after being blended with regenerated cotton fibers and ginned cotton fibers.
Optionally, the fineness of the Jacsell fiber is 1.1-1.5D, the dry breaking strength is 2.9-3.6 cn/dtex, and the dry breaking elongation is 12.0-19%.
The titer, dry breaking strength and dry breaking elongation of the Jacobian fibers play an important role in the dosage and price of the Jacobian fibers and the performance of blended yarns. If the fineness, dry breaking strength and dry elongation at break of the Jacobian fibers are lower than the above ranges, the amount of the Jacobian fibers to be used is increased and the properties of the blended yarn may not meet the requirements; if the fineness, dry breaking strength and dry breaking elongation of the Jacobian fibers are higher than the above ranges, the price of the Jacobian fibers increases and the cost of the blended yarn cannot be effectively reduced.
More preferably, the fineness of the Jacobian fibers is 1.1-1.3D, the dry breaking strength is 2.9-3.2 cn/dtex, and the dry breaking elongation is 12.0-15%. The Jacsell fiber with the specification is low in price and can be less than the consumption of the lint fiber, and the performance of blended yarn formed by blending with the regenerated cotton fiber cotton can meet the requirement.
Optionally, the fiber length of the regenerated cotton fiber is more than or equal to 15mm, and the fiber length of the ginned cotton fiber is more than or equal to 25 mm.
If the fiber lengths of the regenerated cotton fiber and the ginned cotton fiber are too short, the dosage of the Yasaier fiber is increased, the single yarn strength, the breaking strength and the elongation of the blended yarn are reduced, and even the blended yarn does not meet the requirement. The method selects the regenerated cotton fiber with the fiber length of more than or equal to 15mm and the ginned cotton fiber with the fiber length of more than or equal to 25mm to blend with the Yasaier fiber to prepare the blended yarn, so that the cost of the blended yarn is reduced, and the single yarn strength, the breaking strength and the elongation of the blended yarn can be increased.
Optionally, the regenerated cotton fiber blended yarn is prepared by an open-end spinning method, the count is 7-40S, the single yarn strength is larger than or equal to 470cN, the breaking strength is larger than or equal to 8.3%, and the elongation is larger than or equal to 5.3%.
Because the fiber length of the regenerated cotton fiber is short, the Yasaier fiber, the regenerated cotton fiber and the ginned cotton fiber are spun by an air spinning method, and all properties of the prepared blended yarn meet the requirements and can be used in the field of jean fabrics.
In a second aspect, the present application provides a method for preparing a regenerated cotton fiber blended yarn, comprising the steps of: clearing the flower: the bale plucker grabs 3 to 7 percent of Jacobian fiber, 0 to 3 percent of ginned cotton and 92 to 95 percent of regenerated cotton fiber to prepare mixed fiber;
carding cotton: making the mixed fibers into sliver strips by a carding machine;
drawing: a drawing frame combines a plurality of the raw slivers into a single cooked sliver;
open-end spinning: and the rotor spinning machine makes the drawn sliver into regenerated cotton fiber blended yarn.
The preparation method is simple, the rotor spinning machine is adopted to prepare the drawn sliver into the blended yarn, the blended yarn can be used for preparing the spun yarn with small count, the working procedures are few, and the cost is low.
Optionally, the quantitative amount of the raw sliver is 30-35 g/5m, and the sliver unevenness rate is less than or equal to 4.2%; the quantitative amount of the cooked strips is 25-30 g/5m, and the unevenness rate of the strips is less than or equal to 6.3%.
It is noted that the evenness of the yarn, sliver or roving is the uniformity of thickness or quality in the axially shorter segments. The quality of the textile is closely related to the yarn evenness, the smaller the yarn unevenness, the better the yarn evenness and the better the yarn strength.
The sliver unevenness rate of the sliver formed after carding the ya saier fibers, the regenerated cotton fibers and the ginned cotton fibers is less than or equal to 4%, and in addition, the sliver unevenness rate of the drawn sliver is less than or equal to 6% of the drawn sliver. Therefore, the blended yarn formed by the Jacobian fibers, the regenerated cotton fibers and the ginned cotton fibers can keep good performance in each step, and the yield is high.
Optionally, the parameters of the carding machine are as follows: the cylinder speed is 320-360 revolutions per minute, the licker-in speed is 650-850 revolutions per minute, the doffer speed is 17-23 revolutions per minute, the cover plate speed is 85-110 revolutions per minute, and the five-point spacing from the cylinder to the cover plate is respectively 10-12 inches of yarn, 9-11 inches of yarn and 10-12 inches of yarn.
By adopting the technical scheme, the evenness of the raw sliver can be improved.
Optionally, in the drawing step, 6 to 10 raw slivers are combined into 1 cooked sliver, and the drawing machine has the following parameters: the distance between the front roller and the middle roller is 2-4 mm, the distance between the middle roller and the rear roller is 12-16 mm, the main traction speed is 1.3-1.8 times, and the small traction speed is 6-8 times.
By adopting the technical scheme, the evenness of the cooked sliver can be improved.
Optionally, in the blowing step, the regenerated cotton fibers and the jaceel fibers are arranged at intervals in proportion, the regenerated cotton fibers and the jaceel fibers grabbed by the plucker are sent into a mixing bin to be mixed, and then the opening, impurity removal and short fiber removal are performed to prepare the mixed fibers;
the parameters of the rotor spinning machine are as follows: the twisting cup speed is 30000-40000 r/min, the carding roller speed is 6000-7000 r/min, and the yarn drawing roller speed is 280-350 r/min.
By adopting the technical scheme, the uniformity of the blended yarns can be improved, and the single yarn strength, the breaking strength and the elongation of the blended yarns are increased.
In a third aspect, the present application provides a cloth material, which is a denim fabric, and is made of the above regenerated cotton fiber blended yarn.
The denim made of the regenerated cotton fiber blended yarn is low in cost and high in strength.
In summary, the present application has the following beneficial effects:
the blended yarn made of the Yasaier fiber, the regenerated cotton fiber and the ginned cotton fiber is low in cost, and high in single yarn strength, breaking strength and elongation.
The preparation method of the blended yarn made of the Yasaier fibers, the regenerated cotton fibers and the ginned cotton fibers is simple, high in yield and low in cost.
Detailed Description
The present application will be described in further detail with reference to examples.
The following are sources of raw materials in the preparation examples, examples and comparative examples:
the Yasaier fiber (No. 1) is purchased from Yibin Silya group Limited and is made of 100 percent pure wood pulp, the fiber length is 35mm, the fineness is 1.1-1.3D, the dry breaking strength is 2.9-3.2 cn/dtex, and the dry breaking elongation is 12.0-15 percent;
the Jacsell fiber (No. 2) is purchased from Yibin Silya group Limited and is made of 100 percent pure wood pulp, the fiber length is 38mm, the fineness is 1.3-1.5D, the dry breaking strength is 3.3-3.6 cn/dtex, and the dry breaking elongation is 15-19 percent.
The regenerated cellucotton is self-made.
Ginned cotton fiber refers to cotton fiber obtained by ginning seed cotton and separating the seed cotton, which is called ginned cotton fiber.
Preparation example
Preparation example 1
A preparation method of regenerated cellucotton comprises the following steps:
s101, picking: removing non-cotton impurities in the crushed cloth;
s102, sprinkling water: piling up the crushed cloth with the impurities removed, spraying a certain amount of water, and standing for 24 hours;
s103, flowering: and (4) adding the crushed cloth prepared in the step (S102) into a flowering machine for flowering, and then carding in an Luo-port machine to obtain single-fiber regenerated cotton fibers.
Preparation example 1 a method for preparing regenerated cotton fiber was a method for preparing conventional regenerated cotton fiber.
Examples
Example 1
A preparation method of a regenerated cotton fiber blended yarn comprises the following steps:
s1, blowing: the bale plucker grabs 92% of regenerated cotton fiber, 3% of ginned cotton fiber and 5% of Jacell's fiber (No. 1) in proportion, the regenerated cotton fiber, the ginned cotton fiber and the Jacell's fiber grabbed by the bale plucker are sent into a mixing bin to be mixed, and then the opening, impurity removal and short fiber removal are carried out to prepare mixed fiber;
s2, carding: the carding machine is used for preparing the mixed fibers into sliver strips, wherein the cylinder speed is 360 revolutions per minute, the licker-in speed is 850 revolutions per minute, the doffer speed is 23 revolutions per minute, the cover plate speed is 110 revolutions per minute, and the five-point spacing from the cylinder to the cover plate is respectively 12-inch yarns, 11-inch yarns and 12-inch yarns;
s3, drawing: combining 8 raw slivers into 1 cooked sliver, wherein the distance between a front roller and a middle roller is 4mm, the distance between the middle roller and a rear roller is 16mm, the main traction speed is 1.8 times, and the small traction speed is 8 times;
s4, open-end spinning: and the rotor spinning machine is used for preparing the drawn sliver into the regenerated cotton fiber blended yarn, wherein the twisting cup speed is 40000 r/min, the carding roller speed is 7000 r/min, and the yarn leading roller speed is 350 r/min.
Example 2
A preparation method of a regenerated cotton fiber blended yarn comprises the following steps:
s1, blowing: the bale plucker grabs 93% of regenerated cotton fiber and 7% of Jacell's fiber (No. 1) according to the proportion, the regenerated cotton fiber and Jacell's fiber that is grabbed by the bale plucker are sent into the mixing bin to mix, then open, remove impurity, remove the short hair, make the mixed fiber;
s2, carding: the carding machine is used for preparing the mixed fibers into sliver slivers, wherein the cylinder speed is 350 r/min, the licker-in speed is 800 r/min, the doffer speed is 22 r/min, the cover plate speed is 100 r/min, and the five-point spacing from the cylinder to the cover plate is respectively 11 English yarns, 10 English yarns and 11 English yarns;
s3, drawing: combining 6 raw slivers into 1 cooked sliver, wherein the distance between a front roller and a middle roller is 3mm, the distance between the middle roller and a rear roller is 14mm, the main traction speed is 1.3 times, and the small traction speed is 6 times;
s4, open-end spinning: and the rotor spinning machine is used for preparing the drawn sliver into the regenerated cotton fiber blended yarn, wherein the twisting cup speed is 30000 r/min, the carding roller speed is 6000 r/min, and the yarn leading roller speed is 280 r/min.
Example 3
A preparation method of a regenerated cotton fiber blended yarn comprises the following steps:
s1, blowing: the bale plucker grabs 94% of regenerated cotton fiber, 2% of ginned cotton fiber and 4% of Jacell's fiber (No. 1) in proportion, the regenerated cotton fiber, the ginned cotton fiber and the Jacell's fiber grabbed by the bale plucker are sent into a mixing bin to be mixed, and then the opening, impurity removal and short fiber removal are carried out to prepare mixed fiber;
s2, carding: the carding machine is used for preparing the mixed fibers into sliver slivers, wherein the cylinder speed is 330 revolutions per minute, the licker-in speed is 700 revolutions per minute, the doffer speed is 20 revolutions per minute, the cover plate speed is 90 revolutions per minute, and the five-point spacing from the cylinder to the cover plate is respectively 11-inch yarns, 10-inch yarns and 11-inch yarns;
s3, drawing: combining 7 raw slivers into 1 cooked sliver, wherein the distance between a front roller and a middle roller is 3.5mm, the distance between the middle roller and a rear roller is 13mm, the main traction speed is 1.5 times, and the small traction speed is 7 times;
s4, open-end spinning: and the rotor spinning machine is used for preparing the drawn sliver into the regenerated cotton fiber blended yarn, wherein the twisting cup speed is 32000 r/min, the carding roller speed is 6300 r/min, and the yarn leading roller speed is 300 r/min.
Example 4
A preparation method of a regenerated cotton fiber blended yarn comprises the following steps:
s1, blowing: the bale plucker grabs 95% of regenerated cotton fiber, 2% of ginned cotton fiber and 3% of Jacell's fiber (No. 1) according to the proportion, the regenerated cotton fiber, the ginned cotton fiber and the Jacell's fiber grabbed by the bale plucker are sent into a mixing bin to be mixed, and then the opening, impurity removal and short fiber removal are carried out to prepare mixed fiber;
s2, carding: the carding machine is used for preparing the mixed fibers into sliver slivers, wherein the speed of a cylinder is 320 revolutions per minute, the speed of a licker-in is 650 revolutions per minute, the speed of a doffer is 17 revolutions per minute, the speed of a cover plate is 85 revolutions per minute, and the five-point spacing from the cylinder to the cover plate is respectively 10 English yarns, 9 English yarns and 10 English yarns;
s3, drawing: combining 7 raw slivers into 1 cooked sliver, wherein the distance between a front roller and a middle roller is 3.5mm, the distance between the middle roller and a rear roller is 13mm, the main traction speed is 1.5 times, and the small traction speed is 7 times;
s4, open-end spinning: and the rotor spinning machine is used for preparing the drawn sliver into the regenerated cotton fiber blended yarn, wherein the twisting cup speed is 32000 r/min, the carding roller speed is 6300 r/min, and the yarn leading roller speed is 300 r/min.
Example 5
Unlike example 2, example 5 used jaceel fiber (No. 2).
Example 6
A preparation method of a regenerated cotton fiber blended yarn comprises the following steps:
s1, blowing: the bale plucker grabs 93% of regenerated cotton fiber and 7% of Jacell's fiber (No. 1) according to the proportion, the regenerated cotton fiber and Jacell's fiber that is grabbed by the bale plucker are sent into the mixing bin to mix, then open, remove impurity, remove the short hair, make the mixed fiber;
s2, carding: the carding machine is used for preparing the mixed fibers into sliver slivers, wherein the speed of a cylinder is 300 revolutions per minute, the speed of a licker-in is 600 revolutions per minute, the speed of a doffer is 15 revolutions per minute, the speed of a cover plate is 80 revolutions per minute, and the five-point spacing from the cylinder to the cover plate is respectively 11-inch yarns, 10-inch yarns and 11-inch yarns;
s3, drawing: combining 6 raw slivers into 1 cooked sliver, wherein the distance between a front roller and a middle roller is 3mm, the distance between the middle roller and a rear roller is 14mm, the main traction speed is 1.2 times, and the small traction speed is 5 times;
s4, open-end spinning: and the rotor spinning machine is used for preparing the drawn sliver into the regenerated cotton fiber blended yarn, wherein the twisting cup speed is 45000 r/min, the carding roller speed is 7500 r/min, and the yarn leading roller speed is 260 r/min.
Example 7
A preparation method of a regenerated cotton fiber blended yarn comprises the following steps:
s1, blowing: the bale plucker grabs 93% of regenerated cotton fiber and 7% of Jacell's fiber (No. 1) according to the proportion, the regenerated cotton fiber and Jacell's fiber that is grabbed by the bale plucker are sent into the mixing bin to mix, then open, remove impurity, remove the short hair, make the mixed fiber;
s2, carding: the carding machine is used for preparing the mixed fibers into sliver slivers, wherein the speed of a cylinder is 380 r/min, the speed of a licker-in is 1000 r/min, the speed of a doffer is 27 r/min, the speed of a cover plate is 130 r/min, and the five-point spacing from the cylinder to the cover plate is respectively 11 English yarns, 10 English yarns and 11 English yarns;
s3, drawing: combining 6 raw slivers into 1 cooked sliver, wherein the distance between a front roller and a middle roller is 3mm, the distance between the middle roller and a rear roller is 14mm, the main traction speed is 2 times, and the small traction speed is 9 times;
s4, open-end spinning: and the rotor spinning machine is used for preparing the drawn sliver into the regenerated cotton fiber blended yarn, wherein the twisting cup speed is 20000 revolutions per minute, the carding roller speed is 5000 revolutions per minute, and the yarn leading roller speed is 250 revolutions per minute.
Comparative example 1
A preparation method of a lint cotton and regenerated cotton fiber blended yarn comprises the following steps:
s1, blowing: the bale plucker grabs 85% of regenerated cotton fiber and 15% of ginned cotton fiber according to the proportion, the regenerated cotton fiber and the ginned cotton fiber grabbed by the bale plucker are sent into a mixing bin to be mixed, and then the opening, impurity removal and short fiber removal are carried out to prepare mixed fiber;
s2, carding: the carding machine is used for preparing the mixed fibers into sliver slivers, wherein the cylinder speed is 350 r/min, the licker-in speed is 800 r/min, the doffer speed is 22 r/min, the cover plate speed is 100 r/min, and the five-point spacing from the cylinder to the cover plate is respectively 11 English yarns, 10 English yarns and 11 English yarns;
s3, drawing: combining 6 raw slivers into 1 cooked sliver, wherein the distance between a front roller and a middle roller is 3mm, the distance between the middle roller and a rear roller is 14mm, the main traction speed is 1.3 times, and the small traction speed is 6 times;
s4, open-end spinning: and the rotor spinning machine is used for preparing the drawn sliver into a blended yarn of the lint cotton fiber and the regenerated cotton fiber, wherein the speed of a twisting cup is 30000 r/min, the speed of a carding roller is 6000 r/min, and the speed of a yarn drawing roller is 280 r/min.
Comparative example 2
S1, blowing: the bale plucker grabs 85% of regenerated cotton fiber and 15% of ginned cotton fiber according to the proportion, the regenerated cotton fiber and the ginned cotton fiber grabbed by the bale plucker are sent into a mixing bin to be mixed, and then the opening, impurity removal and short fiber removal are carried out to prepare mixed fiber;
s2, carding: the carding machine is used for preparing the mixed fibers into sliver slivers, wherein the cylinder speed is 330 revolutions per minute, the licker-in speed is 700 revolutions per minute, the doffer speed is 20 revolutions per minute, the cover plate speed is 90 revolutions per minute, and the five-point spacing from the cylinder to the cover plate is respectively 11-inch yarns, 10-inch yarns and 11-inch yarns;
s3, drawing: combining 7 raw slivers into 1 cooked sliver, wherein the distance between a front roller and a middle roller is 3.5mm, the distance between the middle roller and a rear roller is 13mm, the main traction speed is 1.5 times, and the small traction speed is 7 times;
s4, open-end spinning: and the rotor spinning machine is used for preparing the drawn sliver into the regenerated cotton fiber blended yarn, wherein the twisting cup speed is 32000 r/min, the carding roller speed is 6300 r/min, and the yarn leading roller speed is 300 r/min.
Performance test
The count of the blended yarns of examples 1 to 7 and comparative examples 1 to 2 was 10S; wherein the content of the first and second substances,
measuring the unevenness of the raw sliver and the cooked sliver by using a sliver rough sliver evenness tester (model CT 500T);
measuring the yarn evenness and the number of 200% neps of a yarn sliver by using a yarn evenness tester (model CT200), wherein the number of 200% neps refers to the number of neps with the diameter of 200% of the diameter of the yarn in the yarn with the length of 1000 meters; the more the number of 200% neps is, the worse the quality of the yarn is, the easier the yarn is to break;
the single yarn strength, breaking strength and elongation of the yarn were measured using a fully automatic single yarn strength meter (model YG 063T); specific results are shown in table 1:
TABLE 1 test data for examples 1-7 and comparative examples 1-2
Example 2 differs from comparative example 1 in that: the blend of the ya cel fiber and the regenerated cotton fiber is adopted in the embodiment 2, the dosage of the ya cel fiber is 7 percent, the blend of the ginned cotton fiber and the regenerated cotton fiber is adopted in the comparative example 1, the dosage of the ginned cotton fiber is 15 percent, and other technological parameters are basically the same. As can be seen from the data of example 2 and comparative example 1 in table 1, the unevenness of the raw sliver, the drawn sliver and the yarn sliver of example 2 is smaller than that of comparative example 1, that is, the blended yarn of example 2 has better performance than that of comparative example 1 in each step. In addition, the single yarn strength, breaking strength and elongation of the blended yarn of example 2 were superior to those of comparative example 1. From this, it is seen that the blended yarn of example 2 is lower in cost and better in performance than comparative example 1.
The raw materials and the use amount of the comparative example 2 and the comparative example 1 are the same, and the process is the same; comparative example 2 the process of preparation example 3 was identical except that the stock of example 3 comprised 4% of Jacobian fibers, 94% of regenerated cotton fibers and 2% of ginned cotton fibers, and the stock of comparative example 2 had only 85% of regenerated cotton fibers and 15% of ginned cotton fibers. According to the data of example 3 and comparative examples 1 to 2 in table 1, it can be seen that, when the raw materials of comparative example 1 and comparative example 2 are only regenerated cotton fiber and ginned cotton fiber and the process parameters are within the preset range, the difference of the process has little influence on the performance of the blended yarn. Under the same process condition, example 3 adds 4% of Jacobian fibers on the basis of comparative example 2, simultaneously reduces the using amount of lint cotton and increases the using amount of regenerated cellucotton, and the evenness of the raw sliver, the drawn sliver and the yarn sliver of example 3 is less than that of the raw sliver, the drawn sliver and the yarn sliver of comparative example 2, namely the blended yarn of example 3 has better performance than that of comparative example 2 in each step. In addition, the single yarn strength, breaking strength and elongation of the blended yarn of example 2 were superior to those of comparative example 2. From this, it is seen that the blended yarn of example 3 is lower in cost and better in performance than comparative example 2.
From the results of examples 1 to 4, it is found that the strength of the resulting blended yarn is improved as the amount of the Jacobian fibers is increased, that is, the Jacobian fibers can replace lint, and the strength of the blended yarn is improved.
As can be seen from the data of example 2, example 6 and example 7 in table 1, the raw materials of example 2, example 6 and example 7 are the same, the processes are different, and when the raw materials contain jacel fibers and regenerated cotton fibers, the process difference has an important influence on the performance of the blended yarn.
The specific embodiments are merely illustrative of the present application and are not restrictive of the present application, and those skilled in the art can make modifications of the embodiments as required without any inventive contribution thereto after reading the present specification, but only protected by the patent laws within the scope of the claims of the present application.
Claims (10)
1. The regenerated cotton fiber blended yarn is characterized by comprising the following raw materials in percentage by mass: 3 to 7 percent of Jacsell fiber, 0 to 3 percent of ginned cotton fiber and 92 to 95 percent of regenerated cotton fiber;
the Jacobian fibers are made of 100% pure wood pulp, and the fiber length of the Jacobian fibers is more than or equal to 30 mm.
2. The spun yarn of claim 1, wherein the Jacobian fiber has a fineness of 1.1 to 1.5D, a dry breaking strength of 2.9 to 3.6cn/dtex, and a dry elongation at break of 12.0 to 19%.
3. The regenerated cotton fiber blended yarn according to claim 1, characterized in that the fiber length of the regenerated cotton fiber is not less than 15mm, and the fiber length of the ginned cotton fiber is not less than 25 mm.
4. The regenerated cotton fiber blended yarn according to any one of claims 1 to 3, wherein the regenerated cotton fiber blended yarn is produced by an open-end spinning method, the count is 7 to 40S, the single yarn strength is equal to or greater than 470cN, the breaking strength is equal to or greater than 8.3%, and the elongation is equal to or greater than 5.3%.
5. The preparation method of the regenerated cotton fiber blended yarn is characterized by comprising the following steps of:
clearing the flower: the bale plucker grabs 3 to 7 percent of Jacobian fiber, 0 to 3 percent of ginned cotton and 92 to 95 percent of regenerated cotton fiber to prepare mixed fiber;
carding cotton: making the mixed fibers into sliver strips by a carding machine;
drawing: a drawing frame combines a plurality of the raw slivers into a single cooked sliver;
open-end spinning: and the rotor spinning machine makes the drawn sliver into regenerated cotton fiber blended yarn.
6. The method for preparing the regenerated cotton fiber blended yarn as claimed in claim 5, wherein the weight of the raw sliver is 30-35 g/5m, and the sliver unevenness is less than or equal to 4.2%; the quantitative amount of the cooked strips is 25-30 g/5m, and the unevenness rate of the strips is less than or equal to 6.3%.
7. The method of producing a recycled cotton fiber blended yarn according to claim 6, wherein the parameters of the carding machine are as follows: the cylinder speed is 320-360 revolutions per minute, the licker-in speed is 650-850 revolutions per minute, the doffer speed is 17-23 revolutions per minute, the cover plate speed is 85-110 revolutions per minute, and the five-point spacing from the cylinder to the cover plate is respectively 10-12 inches of yarn, 9-11 inches of yarn and 10-12 inches of yarn.
8. The method for producing a regenerated cotton fiber blended yarn according to claim 6, wherein in the drawing step, 6 to 10 of the raw sliver slivers are combined into 1 of the drawn sliver slivers, and parameters of the drawing frame are as follows: the distance between the front roller and the middle roller is 2-4 mm, the distance between the middle roller and the rear roller is 12-16 mm, the main traction speed is 1.3-1.8 times, and the small traction speed is 6-8 times.
9. The method of producing a regenerated cotton fiber blended yarn according to claim 5, wherein in the step of blowing, the regenerated cotton fibers and the Jacobian fibers are arranged at regular intervals, and the regenerated cotton fibers and the Jacobian fibers gripped by the plucker are fed into a mixing chamber to be mixed, and then subjected to opening, impurity removal, and flock removal to produce the mixed fibers;
the parameters of the rotor spinning machine are as follows: the twisting cup speed is 30000-40000 r/min, the carding roller speed is 6000-7000 r/min, and the yarn drawing roller speed is 280-350 r/min.
10. A cloth material, characterized in that the cloth material is denim, and is made of the regenerated cotton fiber blended yarn according to any one of claims 1 to 4.
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