CN111945270B - Production method of cotton and wool blended bleached yarn - Google Patents

Production method of cotton and wool blended bleached yarn Download PDF

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CN111945270B
CN111945270B CN202010842342.3A CN202010842342A CN111945270B CN 111945270 B CN111945270 B CN 111945270B CN 202010842342 A CN202010842342 A CN 202010842342A CN 111945270 B CN111945270 B CN 111945270B
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roving
cotton
wool
bleached
yarn
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CN111945270A (en
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贾云辉
李友祥
徐治超
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Luthai Textile Co Ltd
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Luthai Textile Co Ltd
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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
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
    • D06B3/02—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of fibres, slivers or rovings
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
    • D06L4/12—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen combined with specific additives
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/10—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen
    • D06L4/13—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which develop oxygen using inorganic agents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/40—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using enzymes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60—Optical bleaching or brightening
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/60—Optical bleaching or brightening
    • D06L4/65—Optical bleaching or brightening with mixtures of optical brighteners
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
    • D10B2201/01—Natural vegetable fibres
    • D10B2201/02—Cotton
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2211/00—Protein-based fibres, e.g. animal fibres
    • D10B2211/01—Natural animal fibres, e.g. keratin fibres

Abstract

The invention belongs to the technical field of spinning, and particularly relates to a production method of cotton and wool blended bleached yarns. Spinning cotton fibers into loose cotton roving and then bleaching to obtain bleached cotton roving; spinning the wool fibers into loose wool roving and then bleaching to obtain bleached wool roving; and (3) carrying out mixed spinning on the bleached cotton roving and the bleached wool roving to obtain blended roving, spinning the blended roving to obtain bleached spun yarn, and carrying out spooling on the bleached spun yarn to obtain the cotton wool blended bleached yarn. The invention can independently bleach two fibers with different properties, improve the whiteness value of the yarn, avoid the dependence on loose fiber dyeing equipment, enable the cheese dyeing factory to produce, has simple process and achieves the effect of finally improving the whiteness value of the fabric.

Description

Production method of cotton and wool blended bleached yarn
Technical Field
The invention belongs to the technical field of spinning, and particularly relates to a production method of cotton and wool blended bleached yarns.
Background
The cotton/wool (down) blended fabric has the characteristics of softness and comfort of cotton fibers, moisture absorption, breathability, smooth handfeel and elasticity of wool (down) fibers, and is always a main fabric of high-end clothes. At present, the processes for producing blended bleached yarns mainly comprise two processes:
firstly, natural color fiber is adopted for blending, and then cheese is bleached, and the process flow is as follows:
Figure BDA0002641893000000011
the method has the advantages that the production can be realized by adopting normal spinning and cheese dyeing equipment, the spinning process is suitable for most cotton spinning enterprises, special protection is not needed, and the process is simple. But the defects are that the bleaching process is limited by two different fiber properties of cotton fiber and wool fiber, and the whiteness value of the blended yarn is lower. The cotton fiber belongs to plant fiber, generally, caustic soda is mainly used for bleaching, while the wool belongs to animal fiber, and the caustic soda has certain damage to the wool (wool), so that blended yarn bleaching cannot be carried out by caustic soda, and the whitening value is generally only 100-120.
The other method adopts a colored spinning process, namely cotton fibers and wool (wool) fibers are bleached separately and blended by the colored spinning process, and the process flow is as follows:
Figure BDA0002641893000000012
the method has the advantages that the two fibers can be respectively and independently bleached, the whiteness value of the blended yarn is higher, and the whitening yarn can generally reach 130-150. But the method has certain requirements on equipment, manufacturers must have loose fiber dyeing equipment, common cheese dyeing factories cannot produce the loose fiber, and the method has higher requirements on workshop protection during spinning so as to prevent generation of different fibers. At present, the cotton/wool (velvet) blended bleached yarns produced by the method have very few enterprises.
Chinese patent CN 102758285a discloses a method for preparing dyed yarn mixed with mercerized fiber, the invention includes placing roving bobbin with dyeing holes on roving frame, removing the tube head and tube bottom of roving bobbin for mercerization, which shows that it needs special roving bobbin, and only treats cotton fiber, not treats cotton/wool (wool) blended fiber.
Chinese patent CN 104120572a discloses a roving dyeing method for pure cotton, which comprises the following steps of raw cotton → blowing → cotton carding → pre-drawing → ribbon lap → combing → drawing → roving inverted loose cone yarn of roving → dyeing and drying → spun yarn → spooling, wherein the procedure of the roving inverted loose cone yarn is carried out on FIDS spooling equipment with the model of SINCRO/RFM-FC-RC P400A, the invention only relates to cotton fiber, and does not relate to blended yarn of cotton fiber and wool (down) fiber, and the mode of preparing the loose roving is that one-time rewinding is carried out, and the roving is poured onto a loose tube, which wastes time and labor.
The bleaching of the blended yarn by the conventional process has the advantages of no need of special equipment and low production requirement, but has the defect of low whiteness; the bleaching of the colored spun yarn process has the advantages of high whiteness, but has the disadvantages of high production requirement due to the need of special equipment for dyeing loose fibers. At present, a method for producing a cotton and wool blended bleached yarn is needed, which can bleach two different fibers independently and avoid the dependence on loose fiber dyeing equipment.
Disclosure of Invention
The invention aims to provide a production method of cotton and wool blended bleached yarns, which can be used for independently bleaching two fibers with different properties, improving the whiteness value of the yarns, avoiding the dependence on loose fiber dyeing equipment, enabling cheese dyeing factories to produce the yarns, and achieving the effect of finally improving the whiteness value of fabrics.
The production method of the cotton and wool blended bleached yarn is characterized in that cotton fibers are spun into loose cotton roving and then bleached to obtain bleached cotton roving; spinning the wool fibers into loose wool roving and then bleaching to obtain bleached wool roving; and (3) carrying out mixed spinning on the bleached cotton roving and the bleached wool roving to obtain blended roving, spinning the blended roving to obtain bleached spun yarn, and carrying out spooling on the bleached spun yarn to obtain the cotton wool blended bleached yarn.
The cotton fiber is spun into the loose type cotton roving by a roving frame which coats a loose tube on a roving frame.
The wool fiber is spun into the loose wool roving by a roving frame which coats a loose tube on a roving frame.
The wool fiber is wool fiber or cashmere fiber.
The production method of the cotton and wool blended bleached yarn comprises the following steps:
(1) loose roving preparation
The cotton fiber is spun into loose cotton roving after carding, pre-drawing, sliver lap, combing and drawing;
preparing wool tops from the wool fibers, drawing and spinning to obtain loose wool roving;
(2) loose roving bleaching
Bleaching the loose cotton roving, and drying to obtain bleached cotton roving;
bleaching the loose type rough wool yarn, and drying to obtain bleached rough wool yarn;
(3) loose roving hybrid yarn
The bleached cotton roving and the bleached wool roving are mixed and spun by adopting a siro spinning process to obtain blended roving;
(4) production of blended spun yarn
The blended roving is spun by adopting a siro spinning process to obtain bleached spun yarn, and then is wound into the cotton-wool blended bleached yarn through a winding process.
The wool tops in the step (1) are stretch-cut cotton wool tops, and the length of wool fibers in the wool tops is 35-45 mm.
Bleaching the loose cotton roving in the step (2), namely adding the loose cotton roving into a primary bleaching solution for treating for 20-60 minutes at 90-130 ℃, and discharging liquid; then adding the mixture into a re-bleaching solution, treating for 20-60 minutes at 90-130 ℃, and discharging liquid; washing with water at 90-130 deg.C for 5-20 min; and finally, adding the obtained product into re-bleaching liquid, treating for 10-30 minutes at 40-60 ℃, draining liquid, and drying to obtain bleached cotton roving.
The primary bleaching liquid is a mixture of a chelating agent, a refining agent, caustic soda, hydrogen peroxide and dyeing water, the secondary bleaching liquid is a mixture of a refining agent, caustic soda, a fluorescent whitening agent for cotton, hydrogen peroxide and dyeing water, and the secondary bleaching liquid is a mixture of a neutralization acid, an oxygen removing enzyme, a softening agent and dyeing water.
Bleaching the loose wool roving in the step (2), namely adding the loose wool roving into a primary bleaching solution for treating for 20-40 minutes at 40-60 ℃, and discharging liquid; then adding the mixture into a re-bleaching solution, treating for 50-70 minutes at 30-60 ℃, and discharging liquid; washing with water at 50-70 deg.C for 5-20 min, and draining; and finally, adding the obtained product into re-bleaching liquid, treating for 5-20 minutes at 40-60 ℃, draining liquid, and drying to obtain bleached rough yarn.
The primary bleaching liquid is a mixture of scouring enzyme, a refining agent and dyeing water, the secondary bleaching liquid is a mixture of hydrogen peroxide stabilizer, a cotton fluorescent whitening agent, hydrogen peroxide and dyeing water, and the secondary bleaching liquid is a mixture of neutralizing acid, oxygen removing enzyme, a softening agent and dyeing water.
The production method of the cotton and wool blended bleached yarn comprises the following specific steps:
(1) loose roving preparation
The cotton fiber is spun into loose cotton roving after carding, pre-drawing, sliver lap, combing and drawing;
wool fibers are produced into wool tops through a carding machine, but the wool fibers are long in length and are not suitable for being blended with cotton, and the wool fibers are suitable for being blended on cotton spinning equipment only by reducing the length to be equal to the length of the cotton; therefore, the wool tops are subjected to stretch cutting on a stretch cutter (stretch breaking) to ensure that the length of wool fibers reaches 35-45mm, the wool tops are re-spun into strips to prepare cotton type stretch-cut wool tops, and the cotton type stretch-cut wool tops are subjected to drawing and spinning to obtain loose type wool roving;
the loose-type cotton roving and loose-type wool roving are produced on a cotton spinning roving frame, a loose tube is sleeved outside a roving tube, a roving strip is wound on the loose tube for spinning, and the winding density of the roving is controlled to be 0.35-0.39g/cm3。
(2) Loose roving bleaching
Taking the loose tube wound with the roving strips in the step (1) out of the roving bobbin, coating the sock cylinder to prevent the external yarn strips from being dispersed by the dyeing liquid, and putting the yarn strips into a cheese dyeing machine for bleaching treatment.
Bleaching the loose cotton roving: adding chelating agent 0.3-0.7g/L, refining agent 2-6g/L, caustic soda 2-6g/L and hydrogen peroxide 5-13g/L into the loose cotton roving, treating at 90-130 deg.C for 20-60 min, and draining; re-bleaching, adding 2-6g/L refining agent, 2-6g/L caustic soda, 0.4-0.8% fluorescent whitening agent for cotton and 5-13g/L hydrogen peroxide, treating at 90-130 deg.C for 20-60 min, and draining; washing with water at 90-130 deg.C for 5-20 min; adding 0.5-2g/L of neutralizing acid, 0.1-0.4g/L of deoxygenizing enzyme and 2-4% of softening agent, treating at 40-60 ℃ for 10-30 minutes, draining liquid and drying to obtain bleached cotton roving;
the chelating agent is an organic phosphonic acid type chelating agent, and has the main functions of chelating metal ions in the yarns to form stable water-soluble chelates, inhibiting the catalytic decomposition of the metal ions on hydrogen peroxide bleaching agents, and reducing the utilization rate of hydrogen peroxide and damaging the strength of the yarns due to the over-rapid decomposition of the hydrogen peroxide; the refining agent is a nonionic surfactant; the fluorescent whitening agent for cotton is a stilbene type fluorescent whitening agent for cotton, is used for industries of cotton fibers, certain synthetic fibers, papermaking, soap making and the like, and has blue fluorescence; the neutralizing acid is glacial acetic acid or citric acid; the softening agent is polyethylene liquid wax softening agent, so that the smoothness of the yarn is improved; the bleaching in each step is carried out in a dye vat, the concentrations of a chelating agent, a refining agent, caustic soda, hydrogen peroxide, a neutralizing acid and an oxygen removing enzyme are based on the total liquid volume of the dye vat, and the dosage of a fluorescent whitening agent and a softening agent for cotton is based on the weight of roving.
Bleaching the loose wool roving: adding boiling enzyme 1-5g/L and refining agent 0.5-3g/L into the loose wool roving, treating for 20-40 minutes at 40-60 ℃, and discharging liquid; adding 2-6g/L hydrogen peroxide stabilizer, 0.4-0.8% fluorescent whitening agent for cotton and 20-60g/L hydrogen peroxide, treating at 30-60 deg.C for 50-70 min, and discharging liquid; washing with water at 50-70 deg.C for 5-20 min, and draining; adding 0.5-2g/L of neutralizing acid, 0.1-0.4g/L of deoxygenizing enzyme and 2-4% of softening agent, processing at 40-60 ℃ for 5-20 minutes, draining liquid and drying to obtain bleached rough yarn;
wherein the refining agent is a non-ionic surfactant, and the hydrogen peroxide stabilizer is a silicate adsorptive stabilizer; the fluorescent whitening agent for cotton is a stilbene type fluorescent whitening agent for cotton, is used for industries of cotton fibers, certain synthetic fibers, papermaking, soap making and the like, and has blue fluorescence; the neutralizing acid is glacial acetic acid or citric acid; the softening agent is polyethylene liquid wax softening agent, so that the smoothness of the yarn is improved; the bleaching in each step is carried out in a dye vat, the concentrations of scouring enzyme, refining agent, hydrogen peroxide stabilizer, hydrogen peroxide, neutralizing acid and oxygen removing enzyme are based on the total liquid amount of the dye vat, and the dosage of the fluorescent whitening agent and the softening agent for cotton is based on the weight of roving.
(3) Loose roving hybrid yarn
And (2) additionally arranging roving hanging spindles on a roving frame behind the roving frame, hanging the bleached cotton roving and the bleached wool roving on the roving frame hanging spindles behind the roving frame at uniform intervals, drafting and mixing one cotton roving and one wool roving on the same spindle roller of the roving frame by adopting a siro spinning process, and twisting to obtain the blended roving.
(4) Production of blended spun yarn
And (3) the blended roving obtained in the step (3) passes through the siro spinning process on a spinning machine again, the two blended rovings are drafted and twisted through the same channel to obtain bleached spun yarn, and the bleached spun yarn is wound into cone yarn through a winding process for use in next processes such as double twisting or weaving.
The yarn count of the single yarn and the plied yarn thereof prepared by the invention is 40-80 English single yarn, and the content range of the wool (velvet) is 15-40%. The method comprises the following steps of spinning cotton fibers and wool (down) fibers into loose roving separately, bleaching separately, then carrying out mixed spinning on a cotton roving strip and a wool (down) roving strip on a roving frame by adopting a siro spinning process to prepare blended roving, improving the blending uniformity on a spinning frame by the siro spinning process again, producing bleached spun yarn, and then winding into cone yarn through a winding process for use in next processes such as two-for-one twisting or weaving.
The process flow of the invention is as follows:
Figure BDA0002641893000000041
the invention is characterized in that a loose roving bobbin is sleeved on a normal roving bobbin, and the roving winding density is controlled to be 0.35-0.39g/cm3And the penetration of the auxiliary agent is facilitated.
The cotton fiber and wool (down) fiber loose roving bobbins are respectively bleached on a cheese dyeing machine, the cotton fiber roving is treated by caustic soda, the whiteness value of the cotton fiber is greatly improved, after post-treatment and drying, a cotton roving strip and a wool (down) roving strip are blended on a roving frame by adopting a siro spinning process, and the blending uniformity is improved on a spinning frame by the siro spinning process once again to produce bleached spun yarns.
The cotton fiber belongs to plant fiber, generally mainly adopts caustic soda for bleaching, the whiteness value is higher, while the wool belongs to animal fiber, and the caustic soda has certain damage to wool (wool), so the blended yarn can not be treated by caustic soda in bleaching, and the blended yarn whiteness value is lower. The method can be used for bleaching two fibers with different properties, namely the cotton fiber and the wool (down) fiber, and overcomes the defect that the two fibers need to have the influence on the adaptability of bleaching process auxiliaries when the traditional natural-color blended yarn is bleached, so that the aim of improving the whiteness of the blended yarn is fulfilled.
The invention breaks the conventional production flow, the wool (down) adopts stretch-breaking cotton wool tops, the cotton fiber and the wool (down) fiber are independently spun into loose roving on a normal cotton spinning roving frame, special treatment is not needed to be carried out on a special bobbin and the like, the loose bobbin is sleeved outside the roving bobbin, the roving is wound on the loose bobbin for spinning, and the winding density of the roving is controlled to be 0.35-0.39g/cm3The method is characterized in that the single bleaching is carried out, the cotton fiber roving is treated by caustic soda, the whiteness of the cotton fiber is greatly improved, then a cotton roving strip and a wool (wool) roving strip on a roving frame are mixed and spun into blended roving by adopting a siro spinning process, the blending uniformity is improved by the siro spinning process on a spinning frame again, the bleached spun yarn is produced, and then the blended roving is wound into a bobbin yarn through a winding process for use in next processes such as double twisting or weaving.
The invention has the following beneficial effects:
1. the invention adopts the method of bleaching the rough yarn of the cotton fiber and the wool (down) fiber independently, the cheese dyeing factory can produce the cotton fiber and the wool (down) fiber without adding special dyeing equipment for loose fiber, and the working procedure is simple.
2. Compared with the traditional blended natural-color yarn, the blended bleached yarn produced by the invention is improved by over 10 whiteness values through bleaching process treatment.
Drawings
FIG. 1 is a schematic view of a loose tube structure of a roving bobbin outer sleeve; in the figure: 1. a roving bobbin; 2. a loose tube.
Fig. 2 is a schematic view of a loose roving spinning process.
Fig. 3 is a schematic view of a process for hybrid spinning of a roving using a siro spinning process.
Detailed Description
The present invention is further described below with reference to examples.
Example 1
Producing a cotton 85%/cashmere 15% Ne60s spun yarn, prepared by the following steps:
(1) adopting normal cotton spinning process flow, producing pure cotton and cashmere loose roving on a Saite Ring ball company FA498 roving frame with roving bobbin covered with loose tube, wherein the winding density of the roving is 0.39g/cm3The quantitative ratios were 6.0g/10m and 1.2g, respectively/10m。
(2) Bleaching on a Bessemer cheese dyeing machine;
the pure cotton bleaching process comprises the following steps:
zibolui fine chemical industry limited company (hereinafter referred to as luri chemical industry) organic phosphonic acid type chelating agent SQ-B0.5 g/L, luri chemical industry nonionic surface active refining agent SA-E4 g/L, zileu division company (hereinafter referred to as zileu petrochemical company) 48 DEG Beehine 4g/L, Shandong Ming New Material company (hereinafter referred to as Shandong Ming), 27.5% hydrogen peroxide solution 9g/L, heating to 105 ℃ for 40 minutes → adding luri chemical industry nonionic surface active refining agent SA-E4 g/L, zidong 48 DEG Bye caustic soda 4g/L, fluorescent whitening agent CE 0.6 for luri stilbene chemical industry type cotton, Shandong Ming 27.5% hydrogen peroxide solution 9g/L, heating to 105 ℃ for 40 minutes → 90 minutes → 10 minutes water washing → adding 651 g minutes of south China fish textile technology limited company (hereinafter referred to as south Beijing Ice P651/L) 0.2g/L of luri chemical oxygen removing enzyme EZ-B and 3% of luri chemical polyethylene liquid wax softening agent LUA, heating to 50 ℃ for 20 minutes, and drying.
The cashmere bleaching process is as follows:
the preparation method comprises the steps of heating the boiling enzyme NP 3g/L and the nonionic surface active refining agent SA-E1 g/L of the Novoxil (Chinese) biotechnology limited company (hereinafter referred to as Novoxil) to 50 ℃ for 30 minutes → adding silicate-adsorbing hydrogen peroxide stabilizer RENA 4g/L of the Tuona trade (Shanghai) limited company (hereinafter referred to as Tuona), the fluorescent whitening agent CE 0.6% for the toluylene-type cotton of the Ruyi chemical industry and the hydrogen peroxide 40g/L of 27.5% of Shandongming, heating to 45 ℃ for 60 minutes → 60 ℃ for 10 minutes, washing with water → adding glacial acetic acid PH-N1 g/L of the Ruri chemical industry, the oxygen removing enzyme EZ-B0.2 g/L of the Ruyi chemical industry and the polyethylene wax softening agent LUA 3% of the Ruri chemical industry, heating to 50 ℃ for 10 minutes, and drying.
(3) The one cotton bleached roving and the one cashmere bleached roving are used for producing roving on a FA498 roving frame of Saite Ring balls company by adopting a siro spinning process, and the ration is 2.4g/10 m.
(4) The Shanxi Bester BS519E spinning machine produces spun yarn with draft multiple of 50.5 and twist of 31T/in through siro spinning process.
(5) The package was wound up in a winding machine of Japan Toyota No. 21c.
Example 2
Producing a cotton 80%/wool 20% Ne50s spun yarn, prepared by the steps of:
(1) adopting normal cotton spinning process flow, producing pure cotton and wool loose roving on a Saite Ring ball company FA498 roving frame with roving bobbin covered with loose tube, wherein the winding density of the roving is 0.37g/cm3The quantitative ratios were 6.0g/10m and 1.6g/10m, respectively.
(2) Bleaching on a Bessemer cheese dyeing machine;
the pure cotton bleaching process comprises the following steps:
0.7g/L of luri chemical organic phosphonic acid type chelating agent SQ-B, 6g/L of luri chemical non-ionic surface active refining agent SA-E, 6g/L of zilupetrochemical 48 DEG Beehumine caustic soda, 13g/L of Shandong brightening 27.5% hydrogen peroxide, heating to 130 ℃ for 20 minutes → adding 6g/L of luri chemical non-ionic surface active refining agent SA-E, 6g/L of zilupetrochemical 48 DEG Beehumine caustic soda, 0.8% of fluorescent whitening agent for luri chemical stilbene type cotton, and 13g/L of Shandong brightening 27.5% hydrogen peroxide, heating to 130 ℃ for 20 minutes → 130 ℃ for 5 minutes → adding P652 g/L of Nanjing fish glacial acetic acid, 0.4g/L of luri chemical oxygen removing enzyme EZ-B, and LU chemical polyethylene liquid wax softening agent A2%, heating to 60 ℃ for 10 minutes, and (5) drying.
The wool bleaching process comprises the following steps:
the method comprises the following steps of heating novacin scouring enzyme NP 5g/L and luri chemical non-ionic surface active refining agent SA-E3 g/L to 60 ℃ for 20 minutes, adding tannasite adsorptive hydrogen peroxide stabilizer REMA 6g/L, luri chemical stilbene type fluorescent whitening agent CE 0.8% and Shandong Ming chemical stilbene type hydrogen peroxide 60g/L, heating to 60 ℃ for 50 minutes → 70 ℃ for 5 minutes, washing with water → adding luri chemical glacial acetic acid PH-N2 g/L, luri chemical oxygen removal enzyme EZ-B0.4 g/L and luri chemical polyethylene liquid wax softening agent LUA 2%, heating to 60 ℃ for 5 minutes, and drying.
(3) The one bleached cotton roving and the one bleached wool roving are produced into roving by adopting a siro spinning process on a FA498 roving frame of Satet Ring and ball company, and the ration is 2.4g/10 m.
(4) The Shanxi Bester BS519E spinning machine produces spun yarn with draft multiple 41.9 and twist 26T/in through siro spinning process.
(5) The package was wound up in a winding machine of Japan Toyota No. 21c.
Example 3
Producing a cotton 70%/wool 30% Ne40s spun yarn, prepared by the steps of:
(1) adopting normal cotton spinning process flow, producing pure cotton and wool loose roving on a Saite Ring ball company FA498 roving frame with roving bobbin covered with loose tube, wherein the winding density of the roving is 0.35g/cm3The quantitative ratios were 6.0g/10m and 2.7g/10m, respectively.
(2) Bleaching on a Bessemer cheese dyeing machine;
the pure cotton bleaching process comprises the following steps:
0.3g/L of luri chemical organic phosphonic acid type chelating agent SQ-B, 5g/L of luri chemical non-ionic surface active refining agent SA-E2 g/L, 48 DEG British Beehine sodium hydroxide 2g/L, 27.5% Shandong Ming hydrogen peroxide, heating to 90 ℃ for 60 minutes → adding the luri chemical non-ionic surface active refining agent SA-E2 g/L, 48 DEG British Beehine sodium hydroxide 2g/L, 0.4% of fluorescent whitening agent for luri chemical stilbene type cotton, and 27.5% of Shandong Ming hydrogen peroxide 5g/L, heating to 90 ℃ for 60 minutes → 90 ℃ for 20 minutes → adding Nanjing chemical glacial acetic acid P650.5g/L, 0.1g/L of luri chemical oxygen removing enzyme EZ-B, LU Rui polyethylene liquid wax softening agent A4%, heating to 40 ℃ for 30 minutes, and (5) drying.
The wool bleaching process comprises the following steps:
the method comprises the following steps of heating the mixture to 40 ℃ for 40 minutes, adding a Tuona silicate adsorptive hydrogen peroxide stabilizer RENA 2g/L, a fluorescent whitening agent CE 0.4% for the luri chemical stilbene type cotton, and Shandong Ming 27.5% hydrogen peroxide, heating the mixture to 30 ℃ for 70 minutes → 50 ℃ for 20 minutes, washing the mixture with water, adding a luri chemical glacial acetic acid PH-N0.5 g/L, a luri chemical oxygen removal enzyme EZ-B0.1 g/L, and a luri chemical polyethylene liquid wax softening agent LUA 4%, heating the mixture to 40 ℃ for 20 minutes, and drying.
(3) The one bleached cotton roving and the one bleached wool roving are produced into roving by adopting a siro spinning process on a FA498 roving frame of Satet Ring and ball company, and the ration is 2.4g/10 m.
(4) The Shanxi Bester BS519E spinning machine produces spun yarn with draft multiple 33.5 and twist 24T/in through siro spinning process.
(5) The package was wound up in a winding machine of Japan Toyota No. 21c.
Comparative example 1
The traditional blended natural color yarn is used for producing 85% cotton/15% cashmere Ne60s spun yarn, and is prepared by the following steps:
(1) adopting normal cotton spinning process flow, carrying out three-pass mixing on a Shenyang macro drawing frame FA306, and producing pure cotton and cashmere blended roving on an FA498 roving frame of Saite Ring and ball company, wherein the winding density of the roving is 0.55g/cm3The quantitative determination was 4.0g/10 m.
(2) The spun yarn is produced on a Shanxi Bester BS519E spinning machine by adopting a conventional spinning process, the yarn count draft multiple is 42.5, and the twist is 31T/in.
(3) The package was wound up in a winding machine of Japan Toyota No. 21c.
(4) Winding the yarns on a Swiss SSM loose bobbin winder to form loose bobbins, wherein the winding density of the bobbins is 0.38g/cm3。
(5) Bleaching on a Bessemer cheese dyeing machine, and the process comprises the following steps:
the method comprises the following steps of heating the Novitin scouring enzyme NP 3g/L and the Rui chemical industry nonionic surface active refining agent SA-E1 g/L to 50 ℃ for 30 minutes → adding a tannasite adsorptive hydrogen peroxide stabilizer RENA 4g/L, a fluorescent whitening agent CE 0.5% for the Rui chemical stilbene type cotton and 27.5% of Shandong Ming hydrogen peroxide 40g/L, heating to 85 ℃ for 60 minutes → 60 ℃ for 10 minutes, washing with water → adding Rui chemical industry glacial acetic acid PH-N1 g/L, Rui chemical industry oxygen removal enzyme EZ-B0.2 g/L and Rui chemical industry polyethylene liquid wax softening agent LUA 3%, and heating to 50 ℃ for 10 minutes.
(6) And (5) drying.
Comparative example 2
The traditional blended natural color yarn is used for producing cotton 80%/wool 20% Ne50s spun yarn, and is prepared by the following steps:
(1) adopting normal cotton spinning process flow, and placing on Shenyang macro drawing frame FA306Mixing the above materials, and making into blended roving of pure cotton and wool on FA498 roving frame of Saite Ring and ball company with roving winding density of 0.55g/cm3The quantitative determination was 4.0g/10 m.
(2) The spun yarn is produced on a Shanxi Bester BS519E spinning machine by adopting a conventional spinning process, the yarn count draft multiple is 35.2, and the twist is 26T/in.
(3) The package was wound up in a winding machine of Japan Toyota No. 21c.
(4) Winding the yarns on a Swiss SSM loose bobbin winder to form loose bobbins, wherein the winding density of the bobbins is 0.38g/cm3。
(5) Bleaching on a Bessemer cheese dyeing machine, and the process comprises the following steps:
the method comprises the following steps of heating the Novitin scouring enzyme NP 3g/L and the Rui chemical industry nonionic surface active refining agent SA-E1 g/L to 50 ℃ for 30 minutes → adding a tannasite adsorptive hydrogen peroxide stabilizer RENA 4g/L, a fluorescent whitening agent CE 0.5% for the Rui chemical stilbene type cotton and 27.5% of Shandong Ming hydrogen peroxide 40g/L, heating to 85 ℃ for 60 minutes → 60 ℃ for 10 minutes, washing with water → adding Rui chemical industry glacial acetic acid PH-N1 g/L, Rui chemical industry oxygen removal enzyme EZ-B0.2 g/L and Rui chemical industry polyethylene liquid wax softening agent LUA 3%, and heating to 50 ℃ for 10 minutes.
(6) And (5) drying.
Comparative example 3
The traditional blended natural color yarn is used for producing 70% cotton/30% wool Ne40s spun yarn and is prepared by the following steps:
(1) adopting normal cotton spinning process flow, carrying out three-pass mixing on Shenyang macro drawing frame FA306, and producing pure cotton and wool blended roving on FA498 roving frame of Saite Global company, wherein the roving winding density is 0.55g/cm3The quantitative determination was 4.0g/10 m.
(2) The spun yarn is produced on a Shanxi Bester BS519E spinning machine by adopting a conventional spinning process, the yarn count draft multiple is 28.3, and the twist is 24T/in.
(3) The package was wound up in a winding machine of Japan Toyota No. 21c.
(4) Winding the yarns on a Swiss SSM loose bobbin winder to form loose bobbins, wherein the winding density of the bobbins is 0.38g/cm3。
(5) Bleaching on a Bessemer cheese dyeing machine, and the process comprises the following steps:
the method comprises the following steps of heating the Novitin scouring enzyme NP 3g/L and the Rui chemical industry nonionic surface active refining agent SA-E1 g/L to 50 ℃ for 30 minutes → adding a tannasite adsorptive hydrogen peroxide stabilizer RENA 4g/L, a fluorescent whitening agent CE 0.5% for the Rui chemical stilbene type cotton and 27.5% of Shandong Ming hydrogen peroxide 40g/L, heating to 85 ℃ for 60 minutes → 60 ℃ for 10 minutes, washing with water → adding Rui chemical industry glacial acetic acid PH-N1 g/L, Rui chemical industry oxygen removal enzyme EZ-B0.2 g/L and Rui chemical industry polyethylene liquid wax softening agent LUA 3%, and heating to 50 ℃ for 10 minutes.
(6) And (5) drying.
The cotton wool (velvet) blended bleached yarns produced in examples 1 to 3 were compared with the bleached yarns produced in the conventional blended natural-color yarns of comparative examples 1 to 3 by the bleaching process, and the results are shown in table 1.
TABLE 1 results of comparing the yarn whiteness values of examples 1-3 with comparative examples 1-3
Figure BDA0002641893000000091
Figure BDA0002641893000000101

Claims (7)

1. A production method of cotton and wool blended bleached yarn is characterized in that cotton fiber is spun into loose cotton roving and then bleached to obtain bleached cotton roving; spinning the wool fibers into loose wool roving and then bleaching to obtain bleached wool roving; carrying out mixed spinning on bleached cotton roving and bleached wool roving to obtain blended roving, spinning the blended roving to obtain bleached spun yarn, and winding the bleached spun yarn to obtain cotton wool blended bleached yarn;
the cotton fiber is spun into the loose type cotton roving by a roving frame which coats a loose tube on a roving frame;
the wool fiber is spun into the loose wool roving by a roving frame which coats a loose tube on a roving frame;
the method comprises the following steps:
(1) loose roving preparation
The cotton fiber is spun into loose cotton roving after carding, pre-drawing, sliver lap, combing and drawing;
preparing wool tops from the wool fibers, drawing and spinning to obtain loose wool roving;
(2) loose roving bleaching
Bleaching the loose cotton roving, and drying to obtain bleached cotton roving;
bleaching the loose type rough wool yarn, and drying to obtain bleached rough wool yarn;
(3) loose roving hybrid yarn
The bleached cotton roving and the bleached wool roving are mixed and spun by adopting a siro spinning process to obtain blended roving;
(4) production of blended spun yarn
The blended roving is spun by adopting a siro spinning process to obtain bleached spun yarn, and then is wound into the cotton-wool blended bleached yarn through a winding process.
2. The method for producing a bleached cotton-wool blend yarn according to claim 1, wherein the wool fibers are wool fibers or cashmere fibers.
3. The method for producing a bleached cotton-wool blended yarn according to claim 1, wherein the top in step (1) is stretch-broken cotton-type top, and the length of the wool fiber in the top is 35-45 mm.
4. The method for producing a bleached cotton-wool blended yarn according to claim 1, wherein the step (2) of bleaching the pine-type cotton roving comprises the steps of adding the pine-type cotton roving into an initial bleaching solution, treating at 90-130 ℃ for 20-60 minutes, and draining; then adding the mixture into a re-bleaching solution, treating for 20-60 minutes at 90-130 ℃, and discharging liquid; washing with water at 90-130 deg.C for 5-20 min; and finally, adding the obtained product into re-bleaching liquid, treating for 10-30 minutes at 40-60 ℃, draining liquid, and drying to obtain bleached cotton roving.
5. The method of claim 4, wherein the first bleaching solution is a mixture of a chelating agent, a refining agent, caustic soda, hydrogen peroxide and dyeing water, the second bleaching solution is a mixture of a refining agent, caustic soda, a fluorescent whitening agent for cotton, hydrogen peroxide and dyeing water, and the second bleaching solution is a mixture of a neutralizing acid, an oxygen removing enzyme, a softening agent and dyeing water.
6. The method for producing a bleached cotton-wool blended yarn according to claim 1, wherein the step (2) of bleaching the pine roving comprises adding the pine roving into a primary bleaching solution, treating at 40-60 ℃ for 20-40 minutes, and draining; then adding the mixture into a re-bleaching solution, treating for 50-70 minutes at 30-60 ℃, and discharging liquid; washing with water at 50-70 deg.C for 5-20 min, and draining; and finally, adding the obtained product into re-bleaching liquid, treating for 5-20 minutes at 40-60 ℃, draining liquid, and drying to obtain bleached rough yarn.
7. The method for producing cotton and wool blended bleached yarn according to claim 6, wherein the primary bleaching solution is a mixture of scouring enzyme, refining agent and dyeing water, the secondary bleaching solution is a mixture of hydrogen peroxide stabilizer, cotton fluorescent whitening agent, hydrogen peroxide and dyeing water, and the secondary bleaching solution is a mixture of neutralizing acid, oxygen removing enzyme, softening agent and dyeing water.
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