CN114086286A - Medical high count yarn and production method and application thereof - Google Patents
Medical high count yarn and production method and application thereof Download PDFInfo
- Publication number
- CN114086286A CN114086286A CN202111247479.5A CN202111247479A CN114086286A CN 114086286 A CN114086286 A CN 114086286A CN 202111247479 A CN202111247479 A CN 202111247479A CN 114086286 A CN114086286 A CN 114086286A
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- spinning
- air spinning
- cotton
- medical
- yarn
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 21
- 238000009987 spinning Methods 0.000 claims abstract description 45
- 229920000742 Cotton Polymers 0.000 claims abstract description 36
- 238000009960 carding Methods 0.000 claims abstract description 23
- 238000007383 open-end spinning Methods 0.000 claims abstract description 12
- 238000007664 blowing Methods 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000004753 textile Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 32
- 239000012535 impurity Substances 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 9
- 238000010042 air jet spinning Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 241000630665 Hada Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
- D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01H—SPINNING OR TWISTING
- D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
- D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
- D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers
-
- 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
- D02G3/448—Yarns or threads for use in medical applications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention relates to medical high count yarn and a production method and application thereof. The production method takes cotton fiber as a raw material, and the cotton fiber is produced through blowing, cotton carding, drawing and air spinning in turn; in the air spinning process, the air spinning twist is 1310-. In addition, the invention also provides application of the air spinning in producing medical textiles. The number of the obtained open-end spinning is 32-40, and the medical high-count open-end spinning has soft hand feeling, uniform yarn evenness, high strength and good air permeability and moisture absorption.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to medical high count yarn and a production method and application thereof.
Background
The medical textile is a new field formed by combining textile technology and medical science, and is one of varieties with the strongest creativity and the highest technological content in the textile. With the development of new fibers and the development of new manufacturing processes for yarns and fabrics, medical textiles are also moving towards new application areas. The invention uses the novel spinning technology of open-end spinning to produce medical high count yarn, and the yarn is formed by rotating and twisting a spinning cup, and the cotton sliver carding and the defect removing are integrated.
In the production process of medical air spinning high count yarn, the problems of low production efficiency, high broken ends in thousand spindles, low yarn strength and the like exist, and the high count medical yarn with thin yarn and good strength cannot be obtained when cotton fiber is spun in the prior art.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to obtain high-count medical yarn with thin yarn and good strength through cotton fiber.
In order to solve the technical problems, the invention provides medical high count yarn and a production method and application thereof.
The invention provides a production method of open-end spinning, which takes cotton fiber as a raw material and is produced by blowing, cotton carding, drawing and open-end spinning in turn; in the air spinning process, the air spinning twist is 1310-.
Furthermore, 85% -65% of raw cotton and 15% -35% of combed noil are used as the cotton fiber raw material, the specific strength of the raw cotton is higher than 28CN/TEX, the micronaire value is within 4.2, and the impurity content is lower than 4%.
Furthermore, in the blowing and carding process, the sliver supply line is mixed and supplied by two supply lines and is respectively produced by a Qingdao large blowing-carding unit and a round table opening-carding unit.
Furthermore, in the blowing-carding-drawing process, a fixed cover plate is additionally arranged, the 5-point spacing between the cylinder and the cover plate is 7-inch filament × 6-inch filament × 7-inch filament, the spacing between the cotton feeding plate and the licker-in is 18-inch filament, the dry weight ration of cotton carding is 19-19.5g/5m, and the sliver discharging speed is 60-66 m/min.
Further, in the drawing process, 6 pieces of the drawing are combined together after two times of combination, the dry weight ration is 25-25.3g/5 m, the roller gauge is 39mm multiplied by 44mm, and the back zone is drafted by 1.7 times; combining 6 pieces of the two, the dry weight ration is 25-25.3g/5 m, the roller gauge is 38mm multiplied by 42mm, and the back zone is drafted by 1.2 times; the drawing speed of the drawing frame is 400-450 m/min.
Further, in the drawing process, a drawing frame with auto-leveling is used, and the RQM parameter of the drawing frame is set as: the A% parking limit value is 2.5%, and the CV% parking limit value is 4%.
Furthermore, in the air spinning process, a full-automatic air spinning machine is adopted, the broken ends are within 500 when the thousand spindles are spun by air spinning, the average efficiency is more than 99%, the joint reliability is more than or equal to 75%, and the ASP joint stop rate is within 5%.
Furthermore, in the air spinning process, the air spinning temperature is controlled within 30 degrees, the humidity is controlled to be above 60 percent, and the air spinning moisture regain is above 7.5 percent.
The invention also provides the medical high-count air-jet spun yarn produced by the production method.
Furthermore, the invention also provides the application of the air spinning yarn in producing medical textiles.
Compared with the prior art, the invention has the advantages that: the invention adopts cotton fiber as raw material, and medical high-count open-end spinning is obtained by blowing-carding, drawing and open-end spinning processes in sequence; particularly, in the air spinning process, the air spinning twist is 1310-.
Detailed Description
The specific embodiment provides a production method of medical high-count open-end spinning, which is produced by taking cotton fiber as a raw material and sequentially performing a blowing-carding process, a drawing process and an open-end spinning process;
in the blowing-carding-drawing process, a sliver supply line is mixed and supplied by two supply lines, the two supply lines are respectively produced by mixing a Qingdao large blowing-carding-drawing unit and a round table cotton opening, a fixed cover plate is additionally arranged, the 5-point spacing between a cylinder and the cover plate is 7-inch filament, 6-inch filament, 7-inch filament, the spacing between a cotton feeding plate and a licker-in is 18-inch filament, the cotton carding dry weight is 19-19.5g/5m, and the sliver discharging speed is 66 m/min;
in the drawing process, 6 pieces of the drawing are combined together after two times of combination, the dry weight ration is 25-25.3g/5 m, the roller gauge is 39mm multiplied by 44mm, and the back zone is drafted by 1.7 times; combining 6 pieces of the two, the dry weight ration is 25-25.3g/5 m, the roller gauge is 38mm multiplied by 42mm, and the back zone is drafted by 1.2 times; the drawing speed of the drawing frame is 400-450 m/min; using a Hada draw frame with auto leveling, the RQM parameters were set to: the A% parking limit value is 2.5%, and the CV% parking limit value is 4%;
in the air spinning process, the air spinning twist is 1310-; the full-automatic air spinning machine of Schleifu Autocoro is used, the technological parameters of the splices are reasonably adjusted according to the one-time success rate of the splices and the ASP splice stop rate, the coiling speed is 55000 and 75000RPM, the additional twist is 20-50 percent, the splicing time is 2-3ms, the additional input is 13.5-15mm, and the filling factor is 30-50 percent. The special models are as follows: the spinning cup type: g628BD, twist-stop disc: a-28SL, carding roll: b174 DN. The temperature of the air spinning is controlled within 30 degrees, the humidity is controlled above 60 percent, and the moisture regaining of the air spinning is controlled above 7.5 percent.
In the specific embodiment, the cotton fiber raw material comprises 85-65% of raw cotton and 15-35% of combed noil, the specific strength of the raw cotton is more than 28CN/TEX, the micronaire value is within 4.2, and the impurity content is less than 4%.
The embodiment also comprises the air-jet spinning yarn produced by the production method.
Further, the present embodiment also includes the use of the above-described open-end spun yarn in the production of medical textiles.
The following detailed description of the preferred embodiments of the invention is provided to illustrate the principles of the invention and not to limit the scope of the invention.
Example 1
A medical high-count open-end spinning uses cotton fiber as raw material and is produced by the following process steps:
(1) blowing and carding process
The Qingdao large blowing-carding unit and the round table cotton opening and loosening two supply lines are adopted for mixed production, so that short fibers and impurities are reduced. The fixed cover plate is additionally arranged, the spacing between the cylinder and the 5 points of the cover plate is 7 English yarns multiplied by 6 English yarns multiplied by 7 English yarns, the spacing between the cotton feeding plate and the licker-in is 18 English yarns, the dry weight ration of the cotton carding is 19.2g/5m, and the sliver discharging speed is 66 m/min.
(2) Drawing process
Drawing is produced on an SB-D26 → RSB-D26 drawing frame, and the drawing frame is combined for two times and provided with an auto-leveling device. Combining 6 pieces of the raw materials, wherein the dry weight ration is 25.2g/5 m, the roller gauge is 39mm multiplied by 44mm, and the back zone is drafted by 1.7 times; combining 6 pieces of the two, the dry weight ration is 25.2g/5 m, the roller gauge is 38mm multiplied by 42mm, and the back zone drafting is 1.2 times; the drawing speed of the drawing frame is 450 m/min; the RQM parameter is set to: the A% parking limit value is 2.5%, and the CV% parking limit value is 4%.
(3) Air spinning process
The air spinning is produced on a full-automatic air spinning machine with Cilefu Autocoro, the defect removal and the breakage rate are controlled during the production process, the joint technological parameters are reasonably adjusted according to the one-time success rate of the joint and the ASP joint stop rate, the winding speed is started to be 73500RPM, the additional twist is 50 percent, the splicing time is 2ms, and the additional input is 14mm again.
The air spinning twist is 1410 twists/meter, the speed of the spinning cup is 140000rpm, and the speed of the carding roller is 9600rpm, so that the impurity removing capability is improved, and the carding effect is enhanced; the spinning cup is G628BD type to improve strength and yarn evenness, and the spinning cup matched with the twist-resistant disc is A-28SL type. The carding roller is B174DN type, so that flying cotton is prevented from blocking the carding roller. The forming angle and the winding tension are optimized according to the appearance of the finished yarn, the problems that the finished yarn tension is large, the outer layer yarn is damaged by a hook and is hung up and broken, and the internal twisting head is multi-headed are avoided. The temperature of the air spinning is controlled within 30 degrees, the humidity is controlled above 60 percent, and the moisture regaining of the air spinning is controlled above 7.5 percent. The single yarn with the number of 14.6 and the count of 40 is produced, and the single yarn is the medical high-count open-end spun yarn.
Example 2
In the air spinning process, the air spinning twist is 1310 twist/m, the winding speed is started to be 63300RPM, the additional twist is 48 percent, the splicing time is 2ms, other process parameters of 13.5mm are additionally input again, and single yarns with the number of 18.2 and the count of 32 are produced by the method which is the same as that of the embodiment 1.
Comparative example 1
In the blowing process, the sliver supply line is used for Qingdao large-scale production in Qingdao, and the other process parameters are the same as those of the embodiment 1, so that single yarns with the number of 14.6 and the count of 40 are produced.
Comparative example 2
In the carding process, the sliver supply line is used for producing the circular table opening cotton, and the other process parameters are the same as those of the embodiment 1, so that single yarns with the number of 14.6 and the count of 40 are produced.
Comparative example 3
In the blowing process, a fixed cover plate is not additionally arranged, the distance from a cotton feeding plate to a licker-in is 12 inches, the sliver outlet speed is 74m/min, other process parameters are the same as those of the embodiment 1, and single yarns with the number of 14.6 and the count of 40 are produced.
Performance testing
The medical high-count air-jet yarns produced in examples 1 to 2 and comparative examples 1 to 3 were subjected to a correlation performance test according to a conventional method or a national standard in the textile field, and the correlation test results are shown in table 1 below.
TABLE 1 test results of high count air-jet yarns for medical use produced in examples 1-2 and comparative examples 1-3
As can be seen from the data in the above Table 1, the pure spun high count yarn obtained in the examples 1-2 has good quality, the evenness index reaches the first-class standard of FZ/T12001-2015 rotor-spun cotton grey yarn, the production requirement is met strongly, and the production process is normally interrupted. In comparative examples 1 to 3, comparative example 1 is superior to example 1 in strength and breakage, but the cutting defect is high, comparative example 2 is inferior to the yarn of example 1 in index, comparative example 3 is inferior to example 1 in strength, and the breakage in the production process is high and the production efficiency is low.
Compared with the prior art, the invention also has the following beneficial effects:
the medical high-count air-jet spinning yarn is prepared by taking cotton fiber as a raw material and sequentially carrying out blowing-carding, drawing and air-jet spinning processes, has the count of 32-40, has soft hand feeling, uniform yarn levelness, high strength and good air permeability and hygroscopicity, and can be widely applied to the aspect of medical textiles.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention.
Claims (9)
1. A method for producing high count medical yarn by rotor spinning is characterized in that cotton fiber is used as raw material and is produced by blowing, cotton carding, drawing and rotor spinning in turn; in the air spinning process, the air spinning twist is 1310-.
2. The method as claimed in claim 1, wherein the cotton fiber material used in the blowing process is 85% -65% raw cotton and 15% -35% combed noil.
3. The method of claim 1, wherein the raw cotton has a specific strength greater than 28CN/TEX, a micronaire value within 4.2, and a impurity content less than 4%.
4. The method according to claim 1, characterized in that in the blowing and carding process, the sliver supply line is mixed and supplied by two supply lines and is produced by a Qingdao macro blowing and carding unit and a round table opening cotton respectively.
5. A method as claimed in claim 1, wherein in the drawing process, a draw frame with auto leveling is used, and the RQM parameter of the draw frame is set as: the A% parking limit value is 2.5%, and the CV% parking limit value is 4%.
6. The method according to claim 1, wherein the air spinning process is performed by using a full-automatic air spinning machine, the average efficiency is 99% or more, the joint reliability is 75% or more, and the ASP joint stop rate is 5% or less, when the air spinning machine is used for spinning the thousand ingots.
7. The method as claimed in claim 6, wherein in the air spinning process, the air spinning temperature is controlled within 30 degrees, the humidity is controlled to be above 60%, and the air spinning moisture regain is above 7.5%.
8. A medical high count yarn produced by the method of any one of claims 1 to 7.
9. The medical high count yarn of claim 8 used to prepare a medical textile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111247479.5A CN114086286A (en) | 2021-10-26 | 2021-10-26 | Medical high count yarn and production method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111247479.5A CN114086286A (en) | 2021-10-26 | 2021-10-26 | Medical high count yarn and production method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114086286A true CN114086286A (en) | 2022-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111247479.5A Pending CN114086286A (en) | 2021-10-26 | 2021-10-26 | Medical high count yarn and production method and application thereof |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775137A (en) * | 2022-05-17 | 2022-07-22 | 枝江市凯达纺织有限责任公司 | Medical gauze with high finish degree |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0797734A (en) * | 1993-09-27 | 1995-04-11 | Toyobo Co Ltd | Conjugate yarn having excellent stiffness, toughness and springiness |
| CN103526350A (en) * | 2013-09-26 | 2014-01-22 | 宜宾纬络纺织有限公司 | Production method of superfine high count yarn |
| CN106835403A (en) * | 2017-03-30 | 2017-06-13 | 山东邹平锦华纺织有限公司 | A kind of spinning process |
-
2021
- 2021-10-26 CN CN202111247479.5A patent/CN114086286A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0797734A (en) * | 1993-09-27 | 1995-04-11 | Toyobo Co Ltd | Conjugate yarn having excellent stiffness, toughness and springiness |
| CN103526350A (en) * | 2013-09-26 | 2014-01-22 | 宜宾纬络纺织有限公司 | Production method of superfine high count yarn |
| CN106835403A (en) * | 2017-03-30 | 2017-06-13 | 山东邹平锦华纺织有限公司 | A kind of spinning process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114775137A (en) * | 2022-05-17 | 2022-07-22 | 枝江市凯达纺织有限责任公司 | Medical gauze with high finish degree |
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Application publication date: 20220225 |