CN104480596A - Blended yarn using PET and PTT composite yarn as raw material and preparation method thereof - Google Patents

Abstract

The invention discloses a blended yarn taking PET and PTT composite filaments as raw materials and a preparation method thereof, wherein the blended yarn taking the PET and PTT composite filaments as raw materials comprises PET and PTT composite filament short fibers; the content of the PET and PTT composite filament short fiber is more than 0 and less than or equal to 100 percent; the paint also comprises a mixed component, wherein the content of the mixed component is more than or equal to 0 and less than 100 percent, and the mixed component is as follows: cotton or hemp, or cellulose fiber, or multi-component mixture composed of wool, cashmere and cellulose fiber. The preparation method comprises the process steps of mixing, blowing, carding, drawing, coarse sand and fine sand; the mixing process comprises the steps of mixing PET and PTT composite filament short fibers with mixed components in a box; the blowing beater form of the fore spinning is a card wire.

Description

Blended yarn using PET and PTT composite yarn as raw material and preparation method thereof

technical field

The invention relates to a blended yarn and a spinning process thereof, in particular to a novel fabric composition and a preparation method thereof.

Background technique

For fabrics and the clothes made of them, we are committed to making them more comfortable to wear. Specifically, the comfort, touch, quality, quick-drying effect and free There is a lot of room for improvement in ironing ability;

At the same time, PET and PTT composite yarn is a new polyester fiber with excellent softness, bulkiness, elasticity, and elastic recovery, and has broad application prospects.

However, its fibers are often crimped and its elasticity is not well controlled so that it has not been well utilized in the textile field at present.

Contents of the invention

The technical problem to be solved by the present invention is to provide a kind of blended yarn with PET and PTT composite yarn as raw material and its preparation method in view of the deficiencies in the above-mentioned prior art. , the quick-drying effect and non-ironing ability are greatly improved compared with the existing clothing; at the same time, through the active control of the crimp and elasticity of PET and PTT composite filament fibers, stable and good-quality blended yarn products are obtained .

The technical solution adopted by the present invention to solve its technical problems is: the blended yarn with PET and PTT composite filament as raw material, comprising PET and PTT composite filament staple fiber; the content of the PET and PTT composite filament staple fiber is greater than 0 and less than or equal to 100%;

It also includes a mixed component, the content of the mixed component is greater than or equal to 0 and less than 100%, and the mixed component is:

cotton or linen,

or cellulose fibers,

Or a multi-component blend of wool, cashmere, cellulose fibres.

Further, the cellulose fiber is one of viscose, modal, Lyocell and tencel.

Further: the mixing component is cotton, the blending ratio of PET and PTT composite filament staple fiber to cotton is 10% to 90% of PET and PTT composite filament staple fiber, 10% to 90% of cotton, and the count is between 10% and 90%. 2s-100s;

Or, the mixed component is cellulose fiber, and the cellulose fiber can also be replaced by polyester fiber and acrylic fiber; the mixing ratio of PET and PTT composite filament short fiber to cellulose fiber is PET and PTT composite filament short Fiber 10%~90%, cellulose fiber 10%~90%, count 2s-100s;

Or, described mixing component comprises two-component or multi-component mixing component that wool, cashmere, hemp fiber and cellulose are formed; The blending ratio of described PET and PTT composite silk staple fiber and mixing component is: PET and PTT composite filament staple fiber 5%~90%, mixed components (5%-90%), count 2s-80s.

The invention also discloses a preparation method for the above-mentioned blended yarn, which includes the process steps of mixing, cleaning, carding, drawing, coarse sand and fine sand; The parts are mixed together in the box; the form of the blow blower before spinning is a comb needle.

Further, the mechanical equipment used to realize the preparation method includes a plucking machine, a cotton blending machine, a cotton opener, a coiler, a carding machine, a draw frame, a sliver coiler, a comber, a roving frame, Spinning frame, winder, baler.

Further: in the carding process step, the card clothing type of carding is subject to the ability to fully release fibers, the cylinder is selected from 2510 to 2810, and the doffer is selected from 4030 to 4035; in the drawing and roving process steps, the relative The humidity is 60%-65%, the temperature is 20°C-22°C, and the neps of PET and PTT composite silk raw sliver are closely monitored; the weight of the roving is light, which is 20% lighter than the conventional The weight of coarse sand is 4.0g/10m~5.0g/10m; the twist coefficient of roving is within 110, and the twist coefficient of spun yarn is 380~460.

Further, it also includes the step of combing PET and PTT composite filament staple fibers and mixed components after the mixing process step.

Further, the spinning forms adopted include ring spinning, air spinning, siro spinning, vortex spinning and compact spinning.

Further, the siro spinning form is a roving blended with PET and PTT composite filament staple fibers and mixed components and a roving without PET and PTT composite filament staple fibers for siro spinning spinning.

Compared with the prior art, the present invention has the following advantages:

In the present invention, PET and PTT composite silk fibers are processed into fabrics, which have particularly excellent softness, toughness and elastic recovery, excellent wrinkle resistance and dimensional stability, and easy dyeing, so it can provide advanced clothing and functional fabrics. The fabric, the clothes made of it are comfortable to wear, soft to the touch, quick-drying, and non-ironing, which meet the needs of people's fast-paced life.

According to the requirements of different fabrics, the present invention selects different spinning forms, unconventional spinning processes and transformation of core parts, and by mastering the best process parameters, it can produce various PET and PTT composite silk fibers in the patent Blended yarns and fabrics, the products of the present invention have unique hand feeling and comfortable elasticity, can maintain the original characteristics and styles of cotton, viscose, wool, cashmere, hemp, silk, etc. blended with it, and improve the natural properties of other fibers Insufficient, bringing irreplaceable surprises to consumers.

Detailed ways

Below in conjunction with the scheme of the present invention is described in detail:

The present invention uses PET and PTT composite yarn as raw material blended yarn and its preparation method, which includes two contents of product and method; the product includes four specific implementation modes: first, a blend of PET and PTT composite yarn fiber Yarn, in which PET and PTT composite filament content is greater than 0 and less than or equal to 100%; followed by PET and PTT composite filament staple fiber and cotton/linen blended yarn; thirdly, PET and PTT composite filament staple fiber and viscose, modal, Lyocell, Tencel and other cellulose fiber blended yarns; finally, PET and PTT composite yarns and wool, cashmere, and cellulose fiber multi-component blended yarns.

The preparation method of the present invention is similar to the traditional spinning process, but due to the particularity of the formula of the present invention, the preparation method specifically includes mixing, cleaning, carding, drawing, coarse sand and fine sand processes; the preparation method of the present invention requires The best form of blowing hand for pre-spinning is carding; the relative humidity of blowing should be high; the state of card clothing should be kept in good condition; high humidity and high temperature should be kept in drawing frame and roving process ; The quantity of roving should be mastered lightly, and the number of mixed threads should be less and better.

The preparation method of the present invention can adopt the common equipment of existing cotton mills to produce under the condition of mastering the optimal process parameters, and the various PET and PTT composite silk fiber blended yarns and fabrics produced have good hand feeling, elasticity and Elastic recovery, size retention, low carbon, green and environmental protection, can be used in civilian clothing, shirts, pants, socks, sweaters, T-shirts, home textiles, decorations and other fields.

The present invention obtains stable and good-quality various blended yarns by actively controlling the crimp and elasticity of PET and PTT composite filament fibers. After a lot of trial spinning and orthogonal tests, we established a test module mainly based on PET and PTT composite filament staple fibers, and found the best point in the characteristics and commonality of its blending with various fibers. It is the quality of the cloth woven with the best quality yarn, the effect of dyeing and finishing and the degree of market acceptance.

In the specific embodiment of the blended yarn of the present invention, it can be a blended yarn made of PET and PTT composite silk fiber and cotton, and its blending ratio is PET and PTT composite silk short fiber (10%-90%), cotton (10%-90%), the count is 2s-100s; it can also be a combination of PET and PTT composite filament staple fibers and viscose, Modal, Lyocell, Tencel and other cellulose fibers or polyester fibers, acrylic, Cotton and other fiber blended yarns, the blending ratio is: PET and PTT composite filament staple fiber (10%-90%), other staple fibers (10%-90%), the count is 2s-100s; it can also be a One is a two-component or multi-component blended yarn made of PET and PTT composite silk fiber and wool, cashmere, hemp fiber or other fibers, and the blending ratio is: PET and PTT composite silk staple fiber (5%-90%); Other fibers are (5%-90%), and the count is 2s-80s.

In the preparation method of the present invention, in order to realize the purpose of the above-mentioned PET and PTT composite silk fiber blended yarn new product, the equipment adopted includes cotton picking machine, cotton mixing machine, cotton opener, lapping machine, carding machine, drawing frame machine, coiler, comber, roving frame, spinning frame, winder, baler, etc.;

In the preparation method of the present invention, during its specific implementation, improvements have been made in the following aspects:

1. In the spinning process of PET and PTT composite silk fiber blended yarn, the conventional strip blending process is not used, but all the blended fibers are box blended together;

2. Change the form of the blowing beater in the pre-spinning to a comb beater to strengthen the opening. The card clothing should be kept in good condition. The card clothing model should be able to fully release the fibers. The cylinder should be 2510-2810, and the doffer should be 4030. ~4035, in the drawing and roving process, it is necessary to maintain a high humidity and not a high temperature to monitor the neps of PET and PTT composite silk raw sliver. The relative humidity is 60% to 65%, and the temperature is 20℃ ~22°C, the basis weight of the roving should be controlled lightly, preferably 20% lighter than the conventional roving basis, currently 4.0g/10m-5.0g/10m, the twist coefficient of the roving should be controlled within 110, and the twist coefficient of the spun yarn should be controlled within 380-460 ;

3. The tension in all processes is reduced by 20%-30%;

4. In order to achieve higher quality, PET and PTT composite yarns are mixed with other fibers and combed together to greatly reduce cotton particles and improve fiber straightness and parallelism, improving the final yarn quality;

5. In the preparation method of the present invention, common ring spinning, air spinning, siro spinning, vortex spinning, and compact spinning are all used to spin yarns to meet the requirements of different uses. The advantages of PTT composite yarn) also make up for the lack of spinning performance of stretchy yarn that is different from other fibers.

6. On the basis of the above-mentioned siro spinning form, use a roving blended with PET and PTT composite yarn and other fibers, and a roving that does not contain PET and PTT composite yarn for siro spinning to achieve AB effect, while improving the yarn quality, making up for the poor performance of PET and PTT composite yarns in finished fabrics.

Describe the specific embodiment of the present invention below in conjunction with embodiment:

Embodiment 1 (the combed weaving yarn of 16S/1 of producing PET and PTT composite silk fiber and cotton blending is example):

Raw materials: 1. PET and PTT composite yarn 1.8dtex*38mm; 2. Xinjiang cotton: grade 2, main body length 29mm.

The blending ratio is: PET and PTT composite yarn 60%, combed cotton 40%.

Process route: PET and PTT composite yarn and Xinjiang cotton mixed - plucking machine - cotton opener - packaging - plucking machine - cotton opener - lapping machine - carding machine - pre-drawing 1 - coiling machine - combing machine -drawing 1-drawing 2-roving-spinning-winding-packing.

Process parameters: PET and PTT composite yarns are blended with combed cotton in a box-blended manner. Blowing A076 comprehensive beater speed 900r/min, fan speed 1300, beater and balance roller gauge 10, lap roller speed 110r/min, porcupine beater speed 500r/min, AC2525*01350 993 teeth/ AD4030*01890P 398 teeth/square inch for doffer card clothing MCH45P 450 teeth/square inch for movable flat card clothing, strong monitoring of neps in PET and PTT composite yarn raw sliver to ensure the control of yarn neps. In addition, in the drawing and roving process, it is still necessary to maintain a relatively high humidity and the temperature should not be high. The relative humidity is 60% to 65%, and the temperature is 20°C to 22°C. . The basis weight of the roving should be light (20% lighter than the conventional roving), which is 4.0g/10m at present. The roving twist coefficient is controlled at 91, and the spun yarn twist coefficient is controlled at 440.

Yarn quality indicators: breaking strength (CN/Tex): 15.5; evenness (CV%): 12.05; fine details -50 (pieces/1000m): 1; thick places +50 (pieces/1000m): 8; neps+ 200 (pcs/1000m): 15.

Embodiment 2 (the combed siro spinning weaving yarn of the 16S/1 that produces PET and PTT composite silk fiber and cotton blending is example):

Raw materials: 1. PET and PTT composite yarn 1.8dtex*38mm; 2. Xinjiang cotton: grade 2, main body length 29mm.

The blending ratio is: PET and PTT composite yarn 60%, combed cotton 40%.

Routing:

Process route: PET and PTT composite yarn and Xinjiang cotton mixed - plucking machine - cotton opener - packaging - plucking machine - cotton opener - lapping machine - carding machine - pre-drawing 1 - coiling machine - combing machine -drawing 1-drawing 2-roving-spinning siro spinning-winding-packing.

Process parameters: PET and PTT composite yarns are blended with combed cotton in a box-blended manner. Blowing A076 comprehensive beater speed 900r/min, fan speed 1300, beater and balance roller gauge 10, lap roller speed 110r/min, porcupine beater speed 500r/min, AC2525*01350 993 teeth/ AD4030*01890P 398 teeth/square inch for doffer card clothing MCH45P 450 teeth/square inch for movable flat card clothing, strong monitoring of neps in PET and PTT composite yarn raw sliver to ensure the control of yarn neps. In addition, in the drawing and roving process, it is still necessary to maintain a relatively high humidity and the temperature should not be high. The relative humidity is 60% to 65%, and the temperature is 20°C to 22°C. . The weight of roving is lighter than ring spinning, 3.5G/10m. The roving twist coefficient is controlled at 91, and the spun yarn twist coefficient is controlled at 440.

Yarn quality indicators: breaking strength (CN/Tex): 16; evenness (CV%): 11.9; fine details -50 (pieces/1000m): 0; thick places +50 (pieces/1000m): 7; neps+ 200 (pcs/1000m): 15.

Embodiment 3 (production of PET and PTT composite silk fiber and bamboo fiber blended 10S/1 carded weaving yarn):

Raw materials: 1. PET and PTT composite yarn 1.8dtex*38mm; 2. Bamboo fiber: 1.4D*38mm.

The blending ratio is: PET and PTT composite filament 40%, bamboo fiber 60%;

Process route: (PET and PTT composite silk/bamboo fiber) mixing box - plucking machine - cotton opening machine - lapping machine - carding machine - head doubling - second doubling - roving - spun yarn - winding - packing.

Process parameters: Similar to Example 1, this type of cellulose fiber blending, in principle, uses cotton box mixing, and the key point of spinning is to control the neps well. Drafting top rollers are recommended to use soft top rollers to enhance grip. Considering that the elongation difference between PET and PTT composite silk and bamboo fiber is relatively large. The tension of each channel should be controlled as small as possible, and the channels of each process should always be kept clean. The roving twist coefficient is controlled at 90, and the spun yarn twist coefficient is controlled at 440-460.

Yarn quality indicators: breaking strength (CN/Tex): 18.5; evenness (CV%): 10; fine details -50 (pieces/1000m): 0; thick places +50 (pieces/1000m): 14; neps+ 200 (pcs/1000m): 26.

Embodiment 4 (production of PET and PTT composite yarn/wool/tencel, 48NM/2 flat knitting machine with blended yarn as example):

Raw materials: 1. PET and PTT composite yarn 1.8dtex*38mm; 2. Australian wool 80; 3. Lenzing A100 1.4D*38MM.

The blending ratio is: PET and PTT composite yarn/wool/tencel, 30/50/20 specifications.

Process route: PET and PTT composite yarn/tencel mixed box opening-carding-(PET and PTT composite yarn/wool/tencel) and wool mixed box-cotton catching machine-opener-coiler-carding machine -Mixed 1-Mixed 2-Mixed 3-Roving-Spun yarn-winding-Two-for-twisted yarn.

Process parameters: similar to Example 1, but PET and PTT composite yarn/Tencel need to be opened strongly, if they are opened together with wool, it will damage the wool, so pre-open before wool and wool, and wool need to be added and crude oil machine to reduce static electricity. Since PET and PTT composite yarns and wool are relatively thick, the spinning speed must be reduced, otherwise the drafting will be difficult to control and affect the quality of the yarn. The key point of spinning is to do a good job of cotton Knot control problem. Drafting top rollers are recommended to use soft top rollers to enhance grip. Considering the large difference in elongation between PET and PTT composite yarn and wool and tencel, the tension of each channel should be kept as small as possible, and the channels of each process should always be kept clean. The roving twist coefficient is controlled at 75-80, and the spun yarn twist coefficient is controlled at 340-360.

Yarn quality indicators: breaking strength (CN/Tex): 10.9; evenness (CV%): 14.05; fine details -50 (pieces/1000m): 2; thick places +50 (pieces/1000m): 21; neps+ 200 (pcs/1000m): 29.

Because PET and PTT composite yarns have good wool-like properties, the fabric will feel more fluffy after adding wool, and the elasticity and elastic recovery will be better. At the same time, the dimensional stability and shrink resistance will be greatly improved. Improve the dull feeling of pure wool fabrics and improve the smooth feel.

Embodiment 5 (production of PET and PTT composite yarn and cotton blended 40S/1AB combed siro-spun yarn for knitted fabrics):

Raw materials: 1. PET and PTT composite yarn 1.8dtex*38mm; 2. Xinjiang cotton: grade 2, main body length 29mm.

The blending ratio is: PET and PTT composite yarn 20%, combed cotton 80%.

Routing:

A. PET and PTT composite yarn and Xinjiang cotton mixed PET and PTT composite yarn 40%, combed cotton 60% - Pre-drawing 1-coiler-comber-drawing 1-drawing 2-roving;

B. Xinjiang cotton 100%-grabbing machine-opening machine-packing-grabbing machine-opening machine-lapping machine-carding machine-pre-drawing 1-coiler-combing machine-drawing 1-drawing Strip 2 - Roving

﹛A+B﹜-spinning-winding-packing.

Process parameters: PET and PTT composite yarns are blended with combed cotton in a box-blended manner. Blowing A076 comprehensive beater speed 900r/min, fan speed 1300, beater and balance roller gauge 10, lap roller speed 110r/min, porcupine beater speed 500r/min, AC2525*01350 993 teeth/ It is recommended to use AD4030*01890P 398 teeth/square inch movable flat card clothing for square inch doffer card clothing and MCH45P 450 teeth/square inch for strong monitoring of neps in PET and PTT composite yarn raw sliver to ensure the control of yarn neps . In addition, in the drawing and roving process, it is still necessary to maintain a relatively high humidity and the temperature should not be high. The relative humidity is 60% to 65%, and the temperature is 20°C to 22°C. . The basis weight of the roving should be controlled lightly (20% lighter than the conventional roving basis), because it is siro spinning, so the weight of the coarse sand is controlled at 3.0g/10m. Strictly control the blending ratio to meet the standard. Combined with the moisture regain of the two rovings, the rovings of A and B are guaranteed to be the same, and the composition is different. The twist coefficient of the roving has a certain difference. The twist coefficient of the cotton roving is controlled at 85, PET and PTT The roving twist coefficient of blended composite yarn and combed cotton is controlled at 95, and the spun yarn twist coefficient is controlled at 440.

Yarn quality indicators: breaking strength (CN/Tex): 16.5; evenness (CV%): 13.0; thin places -50 (pieces/1000m): 1; thick places +50 (pieces/1000m): 8; neps+ 200 (pcs/1000m): 15.

The above-mentioned embodiment 5 not only improves the quality of the yarn, such as evenness, strength, neps and other physical indicators, but also greatly improves the feel, elasticity and elastic recovery of the finished fabric, the wearing comfort of the brand clothing, and the appearance grade. improve.

The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Many other changes and modifications can be made without departing from the spirit and scope of the present invention. It should be understood that the invention is not limited to the particular embodiments, but that the scope of the invention is defined by the appended claims.

Claims (9)

1. with the blended yarn that PET and PTT compound silk is raw material, it is characterized in that: comprise PET and PTT compound silk staple fibre; The content of described PET and PTT compound silk staple fibre is greater than 0 and is less than or equal to 100%;

Also comprise mixed composition, the content of described mixed composition is more than or equal to 0 and is less than 100%, and described mixed composition is:

It is cotton or numb,

Or be cellulose fibre,

Or be the multicomponent mixture be made up of wool, cashmere, cellulose fibre.

2. the blended yarn being raw material with PET and PTT compound silk as claimed in claim 1, is characterized in that: described cellulose fibre is the one in viscose glue, model, Lyocell and sky silk.

3. the blended yarn being raw material with PET and PTT compound silk as claimed in claim 1 or 2, it is characterized in that: described mixed composition is for cotton, described PET and PTT compound silk staple fibre is PET and PTT compound silk staple fibre 10% ~ 90% with cotton blending ratio, cotton 10% ~ 90%, and number is at 2s-100s;

Or described mixed composition is cellulose fibre, described cellulose fibre can also use polyester fiber, acrylic fibers to substitute; The mixing ratio of described PET and PTT compound silk staple fibre and cellulose fibre is PET and PTT compound silk staple fibre 10% ~ 90%, cellulose fibre 10% ~ 90%, and number is at 2s-100s;

Or described mixed composition comprises the bi-component or multicomponent mixed composition that wool, cashmere, flax fibre and cellulose form; The blending ratio of described PET and PTT compound silk staple fibre and mixed composition is: PET and PTT compound silk staple fibre 5% ~ 90%, and mixed composition (5%-90%), number is at 2s-80s.

4. prepare the preparation method of the blended yarn of claims 1 to 3, it is characterized in that: comprise mixing, blowing, comb and parallel cotton fibers prior to spinning, drafting, coarse sand and fine sand processing step; Described hybrid technique is for mix PET and PTT compound silk staple fibre and mixed composition one lift; Before the blowing hired roughneck form spun be card wire.

5. preparation method as claimed in claim 4, is characterized in that: the machinery for realizing described preparation method comprises griping cotton machine, cotton blender machine, opener, lapper, carding machine, drawing frame, sliver lap machines, combing machine, Speed frames, fine spining machine, bobbin winder, baling press.

6. preparation method as claimed in claim 4, it is characterized in that: in described carding process step, the pin cloth model of comb and parallel cotton fibers prior to spinning is as the criterion can fully discharge fiber, and cylinder selects 2510 ~ 2810, and doffer selects 4030 ~ 4035; In drafting, process of roving step, select relative humidity to be 60% ~ 65%, temperature is 20 DEG C ~ 22 DEG C, monitors by force PET and PTT compound silk sliver impurity; Described rove quantitative gently to grasp, lighter than the regular roving feeding of routine by 20%, conventional coarse sand is quantitatively 4.0g/10m ~ 5.0g/10m; Roving twist factor is within 110, and yarn twist factor is 380 ~ 460.

7. preparation method as claimed in claim 6, is characterized in that: also comprise the step of PET and PTT compound silk staple fibre and mixed composition being carried out after hybrid technique step combing.

8. preparation method as claimed in claim 4, is characterized in that: the spinning form of employing comprises the spinning form of RING SPINNING, open-end spinning, SEILE textile, vortex spinning, compact spinning.

9. preparation method as claimed in claim 8, is characterized in that: described SEILE textile spinning form is the rove of employing PET and PTT compound silk staple fibre and mixed composition blending and one is do not carry out SEILE textile spinning containing the rove of PET and PTT compound silk staple fibre.