CN112941685A - Process method for dry spinning cotton-hemp blended spinning - Google Patents
Process method for dry spinning cotton-hemp blended spinning Download PDFInfo
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- CN112941685A CN112941685A CN202110109560.0A CN202110109560A CN112941685A CN 112941685 A CN112941685 A CN 112941685A CN 202110109560 A CN202110109560 A CN 202110109560A CN 112941685 A CN112941685 A CN 112941685A
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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
- D02G3/042—Blended or other yarns or threads containing components made from different materials all components being made from natural material
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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
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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
Abstract
The invention relates to the technical field of spinning, in particular to a process method for dry spinning cotton and hemp blended spinning. The dry spinning cotton-hemp blended spinning process method comprises the following steps: firstly, spinning raw ramie into ramie stripes by a carding machine, carrying out ramie stripe pure combination, then mixing the pure combined ramie stripes with pure cotton combed stripes, and finally carrying out roving, spinning and spooling in sequence. The invention provides a process method for spinning dry-spun cotton-flax blended yarns, which solves the problems of inaccurate flax blended ratio and more flax skin and flax filaments, reduces the cloth repair and defective cloth conditions fed back by subsequent processes, can spin varieties of high-proportion flax and high-count flax, ensures that the varieties of the flax have more flax feeling, has lower cost of the used original flax, and can smoothly produce large goods.
Description
Technical Field
The invention relates to the technical field of spinning, in particular to a process method for dry spinning cotton and hemp blended spinning.
Background
The cotton-flax blended fabric is a blended fabric of cotton fibers and flax fibers, has the softness and comfort of cotton and the cooling effect of flax. Therefore, the development momentum of the cotton and linen product industry is better and better, the traditional dry spinning cotton and linen blended spinning process adopts a package mixing process, and the production flow is as follows: the flax fiber + banquet cotton → the package mixing, the secondary packaging → the lapping → the cotton carding → the head and → the end and → the roving → the spun yarn → the bobbin winding, because the short, thick and hard characteristics of the flax fiber cause the high noil rate in the blowing and cotton carding process, the proportion of the flax in the yarn is influenced, and the difficulty of spinning the high proportion flax is very large.
Patent 200910062083.6 discloses a flax fiber and cotton fiber blended yarn and its manufacturing process, which comprises mixing flax and cotton by wet method, blowing, carding, drawing, coarse sand and fine sand, wherein the flax content is 20-60% of the total blended amount, and the flax fiber has high requirement for flax raw material, and has no need of conventional wrapping process, complicated preparation and high raw material cost.
The patent 201210541812.8 discloses a linen-cotton blended yarn and a preparation method thereof, the technology comprises the steps of linen-cotton mixing, mixing and coiling, cotton carding and drawing, drawing yarn, spinning and spooling, the weight percentage of linen to cotton is 30-50: 45-70, and the technological method for producing the linen-cotton blended yarn can be used for preparing a plurality of varieties.
Patent 201910576680.4 discloses a method for making antistatic cotton blended yarn, which comprises the steps of carding flax fiber with a hackling machine to obtain flax strips, preparing combed cotton sliver, blending the flax strips with the combed cotton sliver, and performing roving and spinning processes, wherein the weight ratio of flax can be seen to be about 50% through the processes, and the flax strips need to be treated with a special flax machine, so that the process limitation is increased.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a dry spinning cotton and hemp blended spinning process method, which solves the problems of inaccurate hemp blending ratio and more hemp skin and hemp threads, reduces the cloth repairing and defective cloth conditions fed back by subsequent processes, can spin varieties of high-proportion hemp and high-count hemp, ensures that the varieties of the hemp have more hemp feeling, uses lower raw hemp cost, and can smoothly produce large goods.
The process method for dry spinning cotton-hemp blended spinning comprises the following steps: firstly, spinning raw ramie into ramie stripes by a carding machine, carrying out ramie stripe pure combination, then mixing the pure combined ramie stripes with pure cotton combed stripes, and finally carrying out roving, spinning and spooling in sequence.
The invention relates to a process method for dry spinning cotton-hemp blended spinning, which comprises the following steps:
(1) carding hemp strips: bleaching, degumming, kneading and opening raw ramie, and then spinning the raw ramie into ramie strips by a carding machine;
(2) pure hemp strips: mixing ramie stripes and ramie stripes, stabilizing and quantifying, controlling the total draft multiple to be 5-7 times, and controlling the rear zone draft multiple to be 1.4-1.6 times;
(3) mixing and merging one: mixing the pure combined ramie stripes with pure cotton combed stripes, wherein the ramie stripes are in the middle, and cotton strips are on two sides, and the cotton-ramie blending ratio is set;
(4) mixing two to six: continuously carrying out cotton-hemp mixing on the cotton-hemp blended strips obtained in the step (3) to uniformly mix the cotton and the hemp and stably quantify the cotton and the hemp;
(5) roving: spinning the mixed drawing prepared in the step (4) into roving;
(6) spinning: producing spun yarn from the roving obtained in the step (5) by adopting a compact spinning process or a compact siro spinning process on a spinning frame;
(7) spooling: and (4) winding the spun yarn prepared in the step (3).
The quantitative determination made in the step (1) is 24-30g/5 m.
The quantitative setting in the step (2) is 20-24g/5m, and the drawing speed is within 200 m/min.
The quantitative determination made in the step (3) and the step (4) is 22-24g/5m, and the drawing speed is within 200 m/min.
The mixing times in the step (4) depend on the actual production requirements, and the process is adjusted to be increased or decreased.
In the step (5), the setting amount is 6.5-7.5g/10m, the tex twist coefficient is 140-160, and the spinning speed is within 500 m/min.
In the step (6), the Texas twisting coefficient is 480-510, the number of the steel wire ring is lighter than that of the variety with the same number of counts by No. 1, the speed of the front roller is within 7.5m/min, and the speed of the spinning machine is 7000-8000 r/min.
The yarn count produced in the step (6) is 30-40 English counts, and the proportion of hemp in the cotton-hemp blended yarn is 70% or more.
Specifically, the dry spinning cotton-hemp blended spinning process method comprises the following steps:
(1) carding hemp strips: bleaching, degumming, kneading and opening raw ramie, spinning and carding the raw ramie into ramie strips by a carding machine, and setting the fixed quantity to be 24-30g/5m, wherein the raw ramie spinning and carding the ramie strips are independently used in the step, so that neps, bast and hemp filaments can be effectively removed;
(2) pure hemp strips: mixing ramie stripes and ramie stripes, setting the ration to be 20-24g/5m, so that the ration is stable, the ration is optimized for blending ratio, the total drafting multiple is controlled to be 5-7 times, the drafting multiple in the rear zone is 1.4-1.6 times, and the drawing speed is within 200 m/min;
(3) mixing and merging one: mixing the pure combined ramie stripes with pure cotton combed stripes, arranging the ramie stripes in the middle and the cotton slivers at two sides to achieve the required blending ratio, setting the ration to be 22-24g/5m, and drawing the ramie stripes at the speed of within 200 m/min;
(4) mixing two to six: continuously and uniformly blending the cotton and hemp blended yarn obtained in the step (3), setting the ration to be 22-24g/5m, enabling the ration to be stable, filling the barrel to be high, reducing a balloon and reducing centrifugal force, so that the speed is improved, and the drawing speed is within 200 m/min;
(5) roving: spinning the mixed drawing prepared in the step (4) into roving by adopting a ring ball 498 variable frequency roving machine, wherein the set quantitative is 6.5m-7.5g/10m, the tex twist coefficient is 140 and 160, and the spinning speed is within 500 m/min;
(6) spinning: producing the spun yarn from the roving obtained in the step (5) on a spinning machine by adopting a compact spinning process or a compact siro spinning process, wherein the produced yarn count range is 30-40 English counts, the Texas twisting coefficient is 480 plus 510, the steel wire ring is lighter than the variety with the same count by No. 1, the speed of a front roller is within 7.5m/min, the speed of the spinning machine is 7000 plus 8000r/min, and the ramie content in the cotton-ramie blended yarn is 70% or more;
(7) spooling: and (4) winding the spun yarn prepared in the step (3).
The process method for dry spinning cotton-hemp blended spinning adopts a strip mixing process, and the production flow is as follows: raw ramie → bleaching and degumming → health preserving → blowing → comb ramie stripes → pure and of ramie stripes → mix one (mix pure and pure ramie stripes + combed cotton stripes, design required blending ratio) → mix two to mix six (make the cotton and ramie mix evenly) → roving → spun yarn → spooling; the sliver mixing process adopted by the invention is to use the cotton carding sliver and the drawn sliver (pure cotton combed sliver) to be combined for multiple times, wherein the sliver is independently spun, can fully remove neps, bast and hemp threads, and then is mixed with the drawn sliver for multiple times to obtain more accurate mixing ratio, so that the variety of high-proportion hemp can be spun, and the hemp feeling of the cloth surface is more prominent; and the strip mixing process is adopted, so that the winding, blocking and winding conditions in the production process are greatly reduced after the hemp strips are fully purified.
Compared with the prior art, the invention has the following beneficial effects:
(1) the dry spinning cotton-hemp blended spinning process method adopts raw hemp as raw material, and has lower cost than directly using hemp fiber;
(2) according to the invention, firstly, the ramie stripes are independently spun, so that ramie peels, ramie filaments and ramie knots can be effectively removed, and then the ramie stripes are mixed with the drawn sliver (pure cotton combed sliver) strips, so that the blending ratio is accurate, meanwhile, the defects of the cloth cover can be effectively reduced, the quality of the cloth cover is improved, and the production efficiency of a vehicle stop worker is improved;
(3) the strip mixing process adopted by the invention is produced by using cotton spinning equipment, so that the universality is strong;
(4) the strip mixing process can be used for spinning high-count varieties of high-proportion linen and yarn, the yarn count reaches 30-40S, the linen content accounts for 70% or more of the total weight of the blended yarn, the cloth cover linen feeling is more prominent, and the air permeability and the comfort are better.
Detailed Description
The invention is further illustrated by the following examples and comparative examples.
Example 1
A process method for dry spinning cotton-hemp blended spinning comprises the following steps:
(1) carding hemp strips: bleaching and degumming raw ramie, kneading the ramie for 1 time, maintaining for 3 days (according to 100kg of flax, 3kg of health preserving liquid and 11kg of water), kneading the ramie for 2 times, cutting the ramie into strips with the diameter of 110mm, then opening the strips for 3 times, spinning the raw ramie into the strips by a carding machine, setting the ration to be 28g/5m, and obtaining the health preserving liquid in the market;
(2) pure hemp strips: combining the ramie stripes and the ramie stripes, setting the ration to be 22g/5m, so that the ration is stable, the ration is optimized for the blending ratio, the total drafting multiple is controlled to be 6 times, the drafting multiple in the rear zone is 1.5 times, and the drawing speed is 200 m/min;
(3) mixing and merging one: mixing the pure combined ramie stripes with pure cotton combed stripes, arranging the ramie stripes in the middle, arranging 70% of ramie and 30% of cotton on the two sides of cotton strips, setting the quantitative ratio to be 23g/5m, and setting the drawing speed to be 200 m/min;
(4) blending two to five: continuously carrying out cotton-hemp mixing on the cotton-hemp blended strips obtained in the step (3), setting the ration to be 23g/5m, and setting the drawing speed to be 200 m/min;
(5) roving: spinning the mixed drawing prepared in the step (4) into roving by adopting a ring ball 498 variable frequency roving machine, setting the quantitative value to be 6.5g/10m, the tex twisting coefficient to be 150 and the spinning speed to be 500 m/min;
(6) spinning: producing spun yarn by adopting a compact spinning process or a compact siro spinning process on the roving yarn prepared in the step (5) on a spinning machine, wherein the produced yarn count is 30 English, the tex system twisting coefficient is 490, the steel wire ring is lighter than the variety with the same count by No. 1, and the speed is 7500 r/min;
(7) spooling: and (4) winding the spun yarn prepared in the step (3).
Example 2
A process method for dry spinning cotton-hemp blended spinning comprises the following steps:
(1) carding hemp strips: bleaching and degumming raw ramie, kneading the ramie for 1 time, maintaining for 3 days (according to 100kg of flax, 3kg of health preserving liquid and 11kg of water), kneading the ramie for 2 times, cutting the ramie into strips with the diameter of 110mm, then opening the strips for 3 times, spinning the raw ramie into the strips by a carding machine, setting the ration to be 28g/5m, and obtaining the health preserving liquid in the market;
(2) pure hemp strips: combining the ramie stripes and the ramie stripes, setting the ration to be 22g/5m, so that the ration is stable, the ration is optimized for the blending ratio, the total drafting multiple is controlled to be 6 times, the drafting multiple in the rear zone is 1.5 times, and the drawing speed is 180 m/min;
(3) mixing and merging one: mixing the pure combined ramie stripes with pure cotton combed stripes, arranging the ramie stripes in the middle, arranging 70% of ramie and 30% of cotton on the two sides of cotton strips, setting the quantitative ratio to be 23g/5m, and setting the drawing speed to be 200 m/min;
(4) blending two to five: continuously carrying out cotton-hemp mixing on the cotton-hemp blended strips obtained in the step (3), setting the ration to be 23g/5m, and setting the drawing speed to be 200 m/min;
(5) roving: spinning the mixed drawing prepared in the step (4) into roving by adopting a ring ball 498 variable frequency roving machine, setting the quantitative value to be 6.5g/10m, the tex twisting coefficient to be 150 and the spinning speed to be 500 m/min;
(6) spinning: producing spun yarn by adopting a compact spinning process or a compact siro spinning process on the roving yarn prepared in the step (5) on a spinning machine, wherein the produced yarn count is 40 English counts, the tex system twisting coefficient is 490, the steel wire ring is lighter than the variety with the same count by No. 1, and the speed is 7500 r/min;
(7) spooling: and (4) winding the spun yarn prepared in the step (3).
Example 3
A process method for dry spinning cotton-hemp blended spinning comprises the following steps:
(1) carding hemp strips: bleaching and degumming raw ramie, kneading the ramie for 1 time, preserving health for 5 days (according to 100kg of flax, 3kg of health preserving liquid and 11kg of water), kneading the ramie for 2 times, cutting the ramie into strips with the diameter of 110mm, then opening the strips for 3 times, spinning the raw ramie into the strips with a carding machine, and setting the ration to be 28g/5m, wherein the health preserving liquid is obtained in the market;
(2) pure hemp strips: combining the ramie stripes and the ramie stripes, setting the ration to be 22g/5m, so that the ration is stable, the ration is optimized for the blending ratio, the total drafting multiple is controlled to be 6 times, the drafting multiple in the rear zone is 1.5 times, and the drawing speed is 200 m/min;
(3) mixing and merging one: mixing the pure combined ramie stripes with pure cotton combed stripes, arranging the ramie stripes in the middle, arranging 70% of ramie and 30% of cotton on the two sides of cotton strips, setting the quantitative ratio to be 23g/5m, and setting the drawing speed to be 200 m/min;
(4) mixing two to six: continuously carrying out cotton-hemp mixing on the cotton-hemp blended strips obtained in the step (3), setting the ration to be 23g/5m, and setting the drawing speed to be 200 m/min;
(5) roving: spinning the mixed drawing prepared in the step (4) into roving by adopting a ring ball 498 variable frequency roving machine, setting the quantitative value to be 6.5g/10m, the tex twisting coefficient to be 150 and the spinning speed to be 500 m/min;
(6) spinning: producing spun yarn by adopting a compact spinning process or a compact siro spinning process on the roving yarn prepared in the step (5) on a spinning machine, wherein the produced yarn count is 30 English, the tex system twisting coefficient is 490, the steel wire ring is lighter than the variety with the same count by No. 1, and the speed is 7500 r/min;
(7) spooling: and (4) winding the spun yarn prepared in the step (3).
Comparative example 1
A process method for cotton-flax blended spinning adopts a wrapping and mixing process according to the traditional cotton-flax blended spinning process, and the production flow is as follows: flax fiber + banquet cotton → package mixing, secondary packaging → lapping → cotton carding → head and → end and → roving → spun yarn → winding, the outstanding resultant yarn quality is poor, the operation steps are:
(1) a blowing procedure: wrapping, mixing and rolling, wherein the rolling quantity is 380g/m, and the mixing proportion is 55% of hemp and 45% of cotton;
(2) cotton carding process: carding and slivering, wherein the ration is 25.0g/5m, and the carding yield is 15 kg/h;
(3) and (3) head combination: carrying out merging and stable quantification, setting the quantification to be 25.5g/5m, carrying out six merging and merging, wherein the total draft multiple is 5.9 times, the rear zone draft multiple is 1.7 times, and the drawing speed is 250 m/min;
(4) and (3) performing final combination: carrying out merging and stable quantification, wherein the established quantification is 25.0g/5m, the six-merging and the total draft multiple is 6.0 times, the rear zone draft multiple is 1.3 times, and the drawing speed is 250 m/min;
(5) roving: adopting an FA458A roving frame for spinning, setting the fixed quantity to be 7.0g/10m, the tex twist coefficient to be 110 and the spinning speed to be 600 m/min;
(6) spinning: the spun yarn is produced by adopting a compact spinning process, the produced yarn count is 30 inches, the tex twisting coefficient is 440, the steel wire ring is lighter than the variety with the same count by No. 1, and the speed is 8000 r/min;
(7) spooling: winding the spun yarn prepared in the step (6);
the traditional process generally achieves the highest yarn count of 30 English, and the hemp ratio is generally 55 percent at most.
The yarns prepared in examples 1 to 3 and comparative example 1 were tested using a Uster fast Strength Meter at a breaking Strength (CN) of 400m/min, and the test results are shown in Table 1:
TABLE 1 resultant yarn quality
As can be seen from Table 1, in example 3, the blending times are increased compared with those in example 1, the curing time is prolonged, and the quality of the resultant yarn is improved; and in the embodiments 1-3, compared with the comparative example 1, the quality of the cotton-flax yarn prepared by the process for dry spinning the cotton-flax blended yarn is accurate in the blending ratio of the varieties with high hemp and yarn counts, the defects of the cloth cover are less, the quality of the cloth cover is improved, the weaving requirement is met, the hemp feeling of the cloth cover is more obvious than that of the wrapping and mixing process from the thickness and the fineness, the diversified requirements of customers can be met, and the universality is strong.
Claims (9)
1. A dry spinning cotton-hemp blended spinning process method is characterized in that: firstly, spinning raw ramie into ramie stripes by a carding machine, carrying out ramie stripe pure combination, then mixing the pure combined ramie stripes with pure cotton combed stripes, and finally carrying out roving, spinning and spooling in sequence.
2. The process method for dry spinning cotton-hemp blended spinning according to claim 1, characterized in that: prepared by the following steps:
(1) carding hemp strips: bleaching, degumming, kneading and opening raw ramie, and then spinning the raw ramie into ramie strips by a carding machine;
(2) pure hemp strips: mixing ramie stripes and ramie stripes, stabilizing and quantifying, controlling the total draft multiple to be 5-7 times, and controlling the rear zone draft multiple to be 1.4-1.6 times;
(3) mixing and merging one: mixing the pure combined ramie stripes with pure cotton combed stripes, wherein the ramie stripes are in the middle, and cotton strips are on two sides, and the cotton-ramie blending ratio is set;
(4) mixing two to six: continuously carrying out cotton-hemp mixing on the cotton-hemp blended strips obtained in the step (3) to uniformly mix the cotton and the hemp and stably quantify the cotton and the hemp;
(5) roving: spinning the mixed drawing prepared in the step (4) into roving;
(6) spinning: producing spun yarn from the roving obtained in the step (5) by adopting a compact spinning process or a compact siro spinning process on a spinning frame;
(7) spooling: and (4) winding the spun yarn prepared in the step (3).
3. The process method for dry spinning cotton-hemp blended spinning according to claim 1, characterized in that: the quantitative determination made in the step (1) is 24-30g/5 m.
4. The process method for dry spinning cotton-hemp blended spinning according to claim 1, characterized in that: the quantitative setting in the step (2) is 20-24g/5m, and the drawing speed is within 200 m/min.
5. The process method for dry spinning cotton-hemp blended spinning according to claim 1, characterized in that: the quantitative determination in the step (3) and the quantitative determination in the step (4) are both 22-24g/5m, and the drawing speed is within 200 m/min.
6. The process method for dry spinning cotton-hemp blended spinning according to claim 1, characterized in that: the mixing times in the step (4) depend on the actual production requirements, and the process is adjusted to be increased or decreased.
7. The process method for dry spinning cotton-hemp blended spinning according to claim 1, characterized in that: in the step (5), the setting amount is 6.5-7.5g/10m, the tex twist coefficient is 140-160, and the spinning speed is within 500 m/min.
8. The process method for dry spinning cotton-hemp blended spinning according to claim 1, characterized in that: in the step (6), the Texas twisting coefficient is 480-510, the steel wire ring is lighter than the variety with the same number of counts by No. 1, the speed of the front roller is within 7.5m/min, and the speed of the spinning machine is 7000-8000 r/min.
9. The process method for dry spinning cotton-hemp blended spinning according to claim 1, characterized in that: the yarn count produced in the step (6) is 30-40 English counts, and the proportion of hemp in the cotton-hemp blended yarn is 70% or more.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114672918A (en) * | 2022-04-22 | 2022-06-28 | 浙江吉莎卫生用品有限公司 | China-hemp cotton cloth and preparation method and application thereof |
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