A production and processing technology of wool-cotton-wool blended yarn

Abstract

The present invention provides a wool-cotton-wool blended yarn production and processing technology, belonging to the field of textile processing. In particular, it relates to a blended yarn production process that can improve the mixing sufficiency and control the mixing ratio. It includes the following steps: step one: raw material processing; step two: cotton sliver preparation, preparing a first cotton sliver, a second cotton sliver, and a ramie fiber bundle, wherein the first cotton sliver and the second cotton sliver are fiber-mixed; step three: detecting the fiber ratio in the first cotton sliver and the second cotton sliver, and compensating the blending ratio by supplementing the cotton slivers of the corresponding fibers; step four: making the mixed cotton slivers in step three into spinning yarn, compared with the prior art, after the fibers are mixed to form cotton slivers, the cotton slivers are further mixed, and the fiber components are detected and corresponding compensation is performed, which improves the fiber mixing sufficiency and ensures the control of the mixing ratio.

Description

Technical Field

[0001] The invention provides a wool-cotton-wool blended yarn production and processing technology, belonging to the field of textile processing, and particularly relates to a blended yarn production technology capable of improving mixing sufficiency and controlling the mixing ratio. Background Art

[0002] At present, in the textile industry, in order to improve the performance of yarn, multiple fibers are mixed and blended, such as cotton, linen, polyester and other fibers. Due to the differences in fiber fineness, strength, maturity, length, etc., the amount of material dropped is different during the blending process, resulting in the mixing ratio and mixing sufficiency cannot be adjusted accordingly. The existing ones mostly use fiber blending and strip blending, two sets of processes. Fiber blending directly mixes the fibers and processes them through subsequent carding machines, drawing machines, etc. Due to different fiber properties, impurities, and different amounts of material dropped, a fixed ratio of mixing cannot be performed, and the mixing cannot be controlled. However, strip blending can control the ratio by preparing the fibers into strips separately and then drawing them. However, the mixing is insufficient and multiple mixing is required. Even after multiple mixing, the effect of fiber blending cannot be achieved, that is, both have corresponding defects.

[0003] Publication No. CN115652490A discloses a blended yarn production process, comprising the following steps: Step 1, fiber pretreatment: placing cotton fibers in a raw cotton classification chamber for full relaxation, then taking out the cotton fibers, and then evenly spraying the treatment liquid on the cotton fibers, viscose fibers and wool fibers, and then mixing them to obtain mixed fibers; Step 2, cotton cleaning process: using a cotton grabbing machine, the process of the cotton carding machine is: a beater speed of 300-500r / min, a combing needle drum speed of 400-600r / min, a comprehensive beater speed of less than 900r / min, a cotton roll roller speed of 10-12r / min, and a cotton roll fixed length of 28.3-32.6m. In the above-mentioned public scheme, it is impossible to form a control of the fiber ratio. Since different fibers have different blanking during the processing, the corresponding ratios of the final sliver fibers are different, which is not convenient for controlling the ratio;

[0004] Publication No. CN115537995A discloses a spinning process for a polylactic acid and fine-staple cotton blended yarn, wherein the polylactic acid fiber is subjected to the processes of cleaning, carding and pre-combining, and then sequentially subjected to the processes of drawing, roving, spinning and winding with the combed fine-staple cotton to obtain a JC / PLA blended yarn, wherein the drafting multiples of the front and rear zones of the drawing process are (3.8-4.5)×(1.75-1.80), the drafting multiples of the front and rear zones of the roving process are (4.0-4.5)×(1.65-1.70) and the twist coefficient is 90-95, and the drafting multiples of the front and rear zones of the spinning process are (26.5-29.5)×(1.34-1.4). In the above process, by adopting the existing spinning method, it is not possible to take into account the requirements of sufficient mixing and mixing ratio. Summary of the invention

[0005] The invention discloses a wool-cotton-wool blended yarn production and processing technology, which provides a wool-cotton-wool blended yarn production and processing technology, which provides a wool-cotton-wool blended yarn production and processing technology, which improves the mixing adequacy and proportion control by blending the fibers in the blended yarn into slivers in pairs, and then blending the slivers through the slivers, and at the same time blending the parts with insufficient fiber ratio. The structure is simple and the use is convenient.

[0006] The wool-cotton-wool blended yarn production and processing technology of the present invention is realized in this way. The wool-cotton-wool blended yarn production and processing technology of the present invention comprises the following steps:

[0007] Step 1: Raw material processing

[0008] Raw material opening treatment, the selected fibers are opened by an opening machine to loosen large pieces of fibers into small pieces;

[0009] The respective raw materials are set up for impurity removal and fiber separation;

[0010] The processed fibers are humidified for use;

[0011] Step 2: Tampon preparation

[0012] Prepare a first cotton sliver and a second cotton sliver, wherein the first cotton sliver and the second cotton sliver are made of fiber blend;

[0013] The fibers include cotton fibers, cashmere fibers, and ramie fibers;

[0014] The cotton fiber and the ramie fiber are mixed to form a first sliver;

[0015] The cashmere fiber and ramie fiber are mixed to form a second sliver;

[0016] Step 3: Detect the fiber ratios in the first sliver and the second sliver, and compensate the blending ratio by adding slivers of corresponding fibers;

[0017] The first sliver, the second sliver and the compensating sliver are processed by the drawing frame and then dropped by the dropper;

[0018] Step 4: Put the mixed cotton strips in step 3 into a twistless wool roving machine to make three passes of roving, then put them into a spinning machine to make one pass of spun yarn, then put them into a doubling machine to doubling, and finally put them into a doubling machine to doubly twist to make spun yarn.

[0019] The cotton strips after the doubling in step 3 are finally put into the double twisting machine for double twisting to make fine wool spinning cotton and wool blended yarn

[0020] In the step 2, the first cotton sliver and the second cotton sliver are prepared as follows: the fiber mixture is combed into slivers by a carding machine, the combed cotton slivers are processed by a pre-drawing machine, the cotton slivers processed by the pre-drawing machine are rolled by a winding machine, and then the rolled cotton slivers are combed by a combing machine, and finally the combed cotton slivers are made into cotton slivers of uniform thickness;

[0021] In the step three, the fiber ratio of the first sliver and the second sliver is detected to control and adjust the blending ratio, and the fiber sliver is compensated in the drawing frame;

[0022] Further, the fibers include 65% cotton fiber, 25% cashmere fiber, and 10% ramie fiber, and 10% of the cotton fiber is reserved for compensation. In the step 2, the fibers are mixed by a cotton mixer, and then carded into strips in a carding machine. The carding machine has a cylinder speed of 300 r / min, a doffer speed of 18 r / min, and a licker-in speed of 720 r / min. The final weight of the cotton strips is 5 g / m. The pre-drawing machine adopts three-pass treatment. During the pre-drawing treatment, the first pass adopts 2-root merging, the second pass adopts 3-root merging, and the third pass adopts 2-root merging. The strip delivery speed is 150 m / min in the first pass, 180 m / min in the second pass, and 200 m / min in the third pass. The drafting multiples of the pre-drawing treatment are all 6.

[0023] Furthermore, in the step three, the compensating slivers are made of the same raw material and are combed into slivers by a carding machine, and the compensating slivers are mixed according to the weight of the slivers. During compensation, the compensating slivers are pre-drawn with the first slivers and the second slivers, and 6 slivers are combined, 2 compensating slivers, 4 first slivers, and 4 second slivers, the drafting multiple is 5, the sliver delivery speed is 200m / min, and the weight of the slivers after drawing is 3.8g / m;

[0024] Furthermore, in the step three, the two first cotton strips and the second cotton strips are fed into the needle plate needle carding machine at the same time, and the cotton strips pass through the stretching zone with a stretching multiple of 5. The pin ring needle carding machine has a strip output speed of 120m / min, a gauge of 50mm, a stretching multiple of 5, and 4 strips are combined. The weight of the strips coming out of the first pin ring needle carding machine is 3.8g / m, the weight of the strips coming out of the second pin ring needle carding machine is 3.6g / m, and the weight of the strips coming out after the third coarse yarn is 0.3g / m.

[0025] Compared with the prior art, the wool-cotton blended yarn production and processing technology of the present invention uses fibers to blend to form slivers, then further blends the slivers, and detects the fiber components to make corresponding compensation, thereby improving the fiber blending and ensuring the control of the blending ratio. DETAILED DESCRIPTION

[0026] A wool-cotton-wool blended yarn production and processing process, characterized in that it comprises the following steps:

[0027] Step 1: Raw material processing

[0028] Raw material opening treatment, the selected fibers are opened by an opening machine to loosen large pieces of fibers into small pieces;

[0029] The respective raw materials are set up for impurity removal and fiber separation;

[0030] The processed fibers are humidified for use;

[0031] Step 2: Tampon preparation

[0032] Prepare a first cotton sliver and a second cotton sliver, wherein the first cotton sliver and the second cotton sliver are made of fiber blend;

[0033] The fibers include 65% cotton fiber, 25% cashmere fiber, and 10% ramie fiber, 10% of the cotton fiber is reserved for compensation, the fibers are mixed by a cotton blender, and then carded into strips by a carding machine, the carding machine has a cylinder speed of 300r / min, a doffer speed of 18r / min, and a licker-in speed of 720r / min, the final weight of the cotton strips is 5g / m, the pre-drawing machine adopts three-pass processing, during the pre-drawing processing, the first pass adopts 2-strand merging, the second pass adopts 3-strand merging, and the third pass adopts 2-strand merging, the first pass has a strip speed of 150m / min, the second pass has a speed of 180m / min, and the third pass has a speed of 200m / min, and the drafting multiples of the pre-drawing processing are all 6;

[0034] The cotton fiber and the ramie fiber are mixed to form a first sliver;

[0035] The cashmere fiber and ramie fiber are mixed to form a second sliver;

[0036] Step 3: Detect the fiber ratio in the first cotton sliver and the second cotton sliver, and compensate the blending ratio by adding cotton slivers of corresponding fibers. The compensation cotton slivers used for compensation are the same raw materials combed into strips by a cotton carding machine, and the compensation cotton slivers are mixed according to the weight of the strips. When compensating, the compensation cotton slivers are pre-stretched with the first cotton sliver and the second cotton sliver respectively, using 6 strips to be strung together, 2 compensation cotton slivers, 4 first cotton slivers and 4 second cotton slivers, the drafting multiple is 5, the strip output speed is 200m / min, and the weight of the strips after strung is 3.8g / m

[0037] The first sliver, the second sliver and the compensating sliver are processed by the drawing frame and then dropped by the dropper;

[0038] The first cotton strips and the second cotton strips are prepared as follows: the fiber mixture is combed into strips by a carding machine, the cotton strips after the carding are processed by a pre-drawing machine, the cotton strips processed by the pre-drawing machine are rolled by a winding machine, and then the rolled cotton strips are combed by a combing machine, and finally the combed cotton strips are made into cotton strips with uniform thickness, the two first cotton strips and the second cotton strips are fed into a pin plate type pin carding machine at the same time, the cotton strips pass through a drafting zone, the drafting multiple is 5, the pin ring type pin carding machine has a strip output speed of 120m / min, a gauge of 50mm, a drafting multiple of 5, and a 4 The weight of the sliver coming out of the first needle-loop guillotine machine is 3.8g / m, and the weight of the sliver coming out of the second needle-loop guillotine machine is 3.6g / m. In the first roving, one sliver is fed, and the drafting multiple is 4. The weight of the sliver coming out of the first roving is 0.9g / m. In the second roving, two slivers are fed, and the drafting multiple is 4. The weight of the sliver coming out of the second roving is 0.45g / m. In the third roving, two slivers are fed, and the drafting multiple is 3. The weight of the sliver coming out of the third roving is 0.3g / m.

[0039] Step 4: Put the mixed cotton strips in step 3 into a twistless wool roving machine to make three passes of roving, then put them into a spinning machine to make one pass of spun yarn, then put them into a doubling machine to doubling, and finally put them into a doubling machine to doubly twist to make spun yarn.

[0040] The present invention and its implementation methods are described above, and such description is not restrictive. The implementation method described in the embodiment is only one of the implementation methods of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it, without departing from the purpose of the invention, they can design a structure and implementation method similar to the technical solution without creativity, which should belong to the protection scope of the present invention.

Claims

1. A wool-cotton-wool blended yarn production and processing technology, characterized in that: The steps include: Step 1: Raw material processing Raw material opening treatment, the selected fibers are opened by an opening machine to loosen large pieces of fibers into small pieces; The respective raw materials are set up for impurity removal and fiber separation; The processed fibers are humidified for use; Step 2: Tampon preparation Prepare a first cotton sliver and a second cotton sliver, wherein the first cotton sliver and the second cotton sliver are made of fiber blend; The fibers include cotton fibers, cashmere fibers, and ramie fibers; The cotton fiber and the ramie fiber are mixed to form a first sliver; The cashmere fiber and ramie fiber are mixed to form a second sliver; Step 3: Detect the fiber ratios in the first sliver and the second sliver, and compensate the blending ratio by adding slivers of corresponding fibers; The first sliver, the second sliver and the compensating sliver are processed by the drawing frame and then dropped by the dropper; Step 4: putting the cotton strips obtained in step 3 into a twistless wool roving frame to make three passes of roving, then putting them into a spinning frame to make one pass of spun yarn, then putting them into a doubling machine to doubling, and finally putting them into a double twisting machine to double twist to make a spun yarn; In the step three, the fiber ratio of the first sliver and the second sliver is detected to control and adjust the blending ratio, and the fiber sliver is compensated in the drawing frame; The fibers include 65% cotton fiber, 25% cashmere fiber, and 10% ramie fiber, and 10% of the cotton fiber is reserved for compensation. In the step 2, the fibers are mixed by a cotton mixer, and then carded into strips in a carding machine. The carding machine has a cylinder speed of 300r / min, a doffer speed of 18r / min, and a licker-in speed of 720r / min. The final weight of the cotton strips is 5g / m. The pre-drawing machine adopts three-pass treatment. During the pre-drawing treatment, the first pass adopts 2-strand merging, the second pass adopts 3-strand merging, and the third pass adopts 2-strand merging. The strip output speed is 150m / min in the first pass, 180m / min in the second pass, and 200m / min in the third pass. The drafting multiples of the pre-drawing treatment are all 6. In the step three, the compensating slivers are made of the same raw material and combed into slivers by a cotton carding machine, and the compensating slivers are mixed in according to the weight of the slivers. During compensation, the compensating slivers are pre-combined with the first slivers and the second slivers respectively, and 6 slivers are combined, 2 compensating slivers, 4 first slivers and 4 second slivers, the drafting multiple is 5, the sliver output speed is 200m / min, and the weight of the slivers after combining is 3.8g / m.

2. The wool-cotton-wool blended yarn production and processing process according to claim 1, characterized in that: In the step 2, the first cotton sliver and the second cotton sliver are prepared as follows: the fiber mixture is combed into strips by a carding machine, the combed cotton slivers are processed by a pre-drawing machine, the cotton slivers processed by the pre-drawing machine are rolled by a winding machine, and then the rolled cotton slivers are combed by a combing machine, and finally the combed cotton slivers are made into cotton slivers of uniform thickness.