CN110777530A - Method for preparing silver-loaded flax fiber by impregnation process - Google Patents
Method for preparing silver-loaded flax fiber by impregnation process Download PDFInfo
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- CN110777530A CN110777530A CN201911045439.5A CN201911045439A CN110777530A CN 110777530 A CN110777530 A CN 110777530A CN 201911045439 A CN201911045439 A CN 201911045439A CN 110777530 A CN110777530 A CN 110777530A
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- Prior art keywords
- flax
- needle
- roving
- ramie
- silver
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- 241000208202 Linaceae Species 0.000 title claims abstract description 131
- 235000004431 Linum usitatissimum Nutrition 0.000 title claims abstract description 131
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 230000008569 process Effects 0.000 title claims abstract description 32
- 229910052709 silver Inorganic materials 0.000 title claims abstract description 23
- 239000004332 silver Substances 0.000 title claims abstract description 23
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 title claims abstract description 18
- 238000005470 impregnation Methods 0.000 title claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 42
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000004061 bleaching Methods 0.000 claims abstract description 38
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000009835 boiling Methods 0.000 claims abstract description 35
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910001961 silver nitrate Inorganic materials 0.000 claims abstract description 19
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 16
- 239000000243 solution Substances 0.000 claims abstract description 15
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 14
- 239000004115 Sodium Silicate Substances 0.000 claims abstract description 13
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 13
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- DPXJVFZANSGRMM-UHFFFAOYSA-N acetic acid;2,3,4,5,6-pentahydroxyhexanal;sodium Chemical compound [Na].CC(O)=O.OCC(O)C(O)C(O)C(O)C=O DPXJVFZANSGRMM-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229940051841 polyoxyethylene ether Drugs 0.000 claims abstract description 7
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/58—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides
- D06M11/64—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with nitrogen or compounds thereof, e.g. with nitrides with nitrogen oxides; with oxyacids of nitrogen or their salts
- D06M11/65—Salts of oxyacids of nitrogen
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
-
- D—TEXTILES; PAPER
- 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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic Table
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with hydrogen peroxide or peroxides of metals; with persulfuric, permanganic, pernitric, percarbonic acids or their salts
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
- D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts
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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
- D06M15/05—Cellulose or derivatives thereof
- D06M15/09—Cellulose ethers
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- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/53—Polyethers
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- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/04—Vegetal fibres
- D06M2101/06—Vegetal fibres cellulosic
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- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/20—Treatment influencing the crease behaviour, the wrinkle resistance, the crease recovery or the ironing ease
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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
- D10B2201/04—Linen
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Microbiology (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention relates to a method for preparing silver-loaded flax fibers by using a dipping process, belonging to the field of flax fiber textile. The technical scheme is as follows: processing raw material flax into flax roving; placing the flax roving into a boiling and bleaching pot, and placing sodium hydroxide, sodium silicate and hydrogen peroxide into the boiling and bleaching pot; adding nano silicon dioxide into clear water, and then adding silver nitrate for later use; adding fatty alcohol-polyoxyethylene ether, a mixed solution of nano silicon dioxide and silver nitrate and sodium carboxymethylcellulose into a boiling and bleaching pot; and taking out the flax roving from the boiling and bleaching pot, putting the flax roving into a wet spinning frame, twisting the flax roving into flax spun yarn, drying the flax spun yarn, and spooling to obtain a finished product of flax fiber. The process of the invention removes impurities from the original flax fiber, mechanically combs the flax fiber, boils and bleaches the flax fiber by a sodium hydroxide solution, a sodium silicate solution and a hydrogen peroxide solution, and then fixes silver ions in silicon dioxide nanometer micropores, thereby realizing the change of the crystallinity and the orientation degree of the molecular structure of the flax fiber and improving the strength and the antibacterial performance of the flax fiber yarn.
Description
Technical Field
The invention relates to a method for preparing silver-loaded flax fibers by using a dipping process, belonging to the field of flax fiber textile.
Background
The linen fabric has the functions of temperature regulation, allergy resistance, static electricity resistance and bacteria resistance, and the linen fabric has dry hand feeling due to good hygroscopicity and can absorb moisture which is 20 times of the self weight, so that the market of the linen product is further expanded due to the emergence of crease-resistant and non-ironing linen products and the appearance of blended products.
The linen fabric is made of linen fibers, the linen fibers are compact in structure and strong in moisture absorption, chemicals are not easy to diffuse into the fibers in the processing and manufacturing process, and obvious defects such as chromatic aberration and white cores can occur.
Silver fibers are high-tech products obtained by permanently bonding a layer of pure silver to the surface of the fiber by means of special techniques. It has the function of sterilization, and the mechanism of metallic silver sterilization is to block the physiological process of bacteria. Silver ions have very high biological activity in warm and humid environments-this means that silver ions are very easily combined with other substances, causing proteins inside and outside the bacterial cell membrane to coagulate, thereby blocking the processes of respiration and reproduction of bacterial cells.
At present, the common fiber fabric silver-carrying technology is common in cotton and wool fabrics, but the flax fiber silver-carrying technology is not mature enough.
Disclosure of Invention
The invention provides a method for preparing silver-loaded flax fibers by using an impregnation process, which meets the requirements of bacteriostasis and antistatic of the flax fibers, improves the yarn strength of the flax fibers and effectively reduces the wrinkling degree of the flax fibers.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for preparing silver-loaded flax fiber by impregnation process comprises the following steps,
step 1) splitting a raw material flax into bundles, beating the flax bundles, carding, and processing the flax bundles into flax roving by a roving frame;
step 2), putting the flax roving into a boiling and bleaching pot, adding clear water with the volume of 2/3 of the boiling and bleaching pot, putting sodium hydroxide, sodium silicate and hydrogen peroxide into the boiling and bleaching pot, preserving the heat for 60min within the temperature range of 80-90 ℃, then discharging oxygen bleaching liquid from the boiling and bleaching pot, and washing the flax roving for 30min by using circulating water;
step 3), adding nano silicon dioxide and silver nitrate into clear water, and stirring for 30min at the temperature of 40-50 ℃ to obtain a nano silicon dioxide and silver nitrate mixed solution for later use;
step 4), adding fatty alcohol-polyoxyethylene ether, a mixed solution of nano silicon dioxide and silver nitrate and sodium carboxymethylcellulose into a boiling and bleaching pot, preserving the heat for 30min at the temperature of 75-85 ℃, then discharging silver-carrying liquid from the boiling and bleaching pot, and washing flax roving for 30-45 min by using circulating water;
and 5), taking out the flax roving from the boiling and bleaching pot, standing for 60min, putting the flax roving into a wet spinning frame to be twisted into flax spun yarns, and drying and spooling to obtain the finished flax fiber.
Preferably, in the step 2), the adding amount of sodium hydroxide is 1-5% of the mass of the oven-dried flax fibers to be processed, the using amount of sodium silicate is 0.5-2% of the using amount of the oven-dried flax fibers to be processed, the using amount of hydrogen peroxide is 3-10% of the using amount of the oven-dried flax fibers to be processed, and the adding components enter a boiling and bleaching pot from different pipelines within 5 min.
Preferably, clear water is firstly added into the preparation barrel in the step 3), the adding amount of the nano silicon dioxide is 5-25 per mill of the mass of the absolute dry flax fiber to be processed, the adding amount of the silver nitrate is 1-5 per mill of the mass of the absolute dry flax fiber to be processed, the nano silicon dioxide and the silver nitrate respectively enter the preparation barrel from different pipelines within 3min, the temperature is kept within the range of 45 +/-5 ℃, and the mixture is stirred for 30min for later use.
Preferably, in the step 4), the addition amount of the fatty alcohol-polyoxyethylene ether is 0.1-0.5 per mill of the dosage of the completely dry flax fiber, the addition amount of the sodium carboxymethylcellulose is 3-10 per mill of the dosage of the completely dry flax fiber, the three substances respectively enter a boiling and bleaching pot from different pipelines within 10min, the temperature is kept at 80 +/-5 ℃ for 30min, then silver-carrying liquid is discharged from the boiling and bleaching pot, and the washing is carried out for 30 min-45 min by circulating water.
Preferably, in the step 1), the flax raw material is firstly introduced into a flax beam splitter in the preparation of the flax roving, the flax beam splitter is used for carrying out directional traction by a traction mechanism, the lapping mechanism is used for realizing the automatic winding in the head and tail lapping process of the fiber bundle, and the conveying speed and the working speed are as follows: less than or equal to 5m/min, and the temperature is (28-40) DEG C;
(2) laying and beating the flax roving in the previous step into flax bundles in a flax gripper,
(3) the ramie bundles on the ramie clamping device are sequentially carded by a left carding machine and a right carding machine, then every 2 ramie strips pass through a feeding mechanism and a drafting mechanism and are combined into the ramie bundles meeting the actual quality standard requirements, and the working speed is as follows: (5-10) m/min;
(4) the combined ramie bundles are laid on a ramie laying curtain of a flax combing machine for processing (the working speed is less than or equal to 10 m/min), then the ramie bundles enter a gilling machine for processing, the sliver outlet speed of the gilling machine is 50-150 m/min, the front gauge is 28-63 mm, the number of the ramie bundles is 102 multiplied by 5102 multiplied by 5, the specifications of a feeding sliver can are phi (600-700) mm multiplied by 1000mm, and the specifications of an output sliver can are phi (400-700) mm multiplied by 1000 mm;
(5) the ramie bundles enter a deck plate through a sliver guide roller and a compression roller in a sliver can mode to be arranged in order, the ramie bundles are fed into a combing machine, the sliver can is phi (700 multiplied by 1000) mm in specification, a feeding box is matched with nine rows of round needle sheets, wherein 5 needles/10 mm2 sheets, 6 needles/10 mm3 sheets and 7 needles/10 mm4 sheets, the number of degrees of a needle area of the round comb occupying the whole circumference is 202 degrees, the sliver outlet speed is 50-150 m/min, the length of a main body is 36mm, the quality length is 39mm, and the moisture regain is 4-6.9 percent;
(6) and finally, processing the ramie bundles into flax roves with different counts and different twists required by products by a roving machine, wherein the working speed is as follows: (150 to 250) m/min.
Preferably, the ramie bundle is fed into the front automatic machine along a track of the front automatic machine at the ramie clamp, two bundles of ramie are beaten into ramie uniformly and are laid on two sides of a screw rod in the ramie clamp by a special device, the ramie clamp is pushed to the other needle bar from one needle bar, the ramie bundle on the ramie clamp is repeatedly carded and split by 18 needle bars on a needle curtain, and the 18 needle bars and the needles on the needle curtain are sequentially arranged, wherein the first needle bar is a hollow needle, the second needle bar is a U-type needle, the third needle bar is a No. 1 needle, the fourth needle bar is a No. 2 needle, the fifth needle bar is a No. 3 needle, the sixth needle bar is a No. 4 needle, the seventh needle bar is a No. 5 needle, the eighth needle bar is a No. 6 needle, the ninth needle bar is a No. 8 needle, the tenth needle bar is a No. 10 needle bar, and the tenth needle bar is a No. 12 needle. The twelfth needle is 14-gauge needle, the thirteenth needle is 16-gauge needle, the fourteenth needle is 18-gauge needle, the fifteenth needle is 20-gauge needle, the sixteenth needle is 20-gauge needle, the seventeenth needle is 22-gauge needle, and the eighteenth needle is 10-gauge needle.
Preferably, in the step 5), the flax roving is taken out from the boiling and bleaching pot, after standing for 60min, the flax roving is fed into a wet spinning frame, the roving is led out from a roving tube on a roving frame, enters a water tank through a guide bar and a porcelain tube, is wetted and then enters a drafting mechanism through a transverse guide bar, the drafting mechanism is a three-roller double-area large drafting device consisting of a feeding roller, a middle roller and a drafting roller, the middle upper roller and the front upper roller are smooth rollers of which the surfaces are sleeved with semi-hard rubber rings, the flax roving is drafted and attenuated in the drafting mechanism by pneumatic pressurization, passes through a guide hook to be twisted into spun yarn, and is wound on a bobbin, and the spindle speed is (5500 +/-100) r/min.
Preferably, in the step 5), the temperature of the drying oven of the dryer is (100 +/-10) ° c, the upper limit is controlled below 110 ℃, and the moisture regain is less than or equal to 10%.
Preferably, in the step 5), the dried flax cop is introduced into a winder, the winder has an electronic yarn-breaking automatic stop function, defects and impurities which affect the quality of the fabric on the yarn are removed, knotless yarn is formed as much as possible, the yarn breakage rate in the subsequent process is reduced, the winding speed and the winding density are (300-1000) m/min, the diameter and the stroke of the cheese are less than or equal to 290mm, and the stroke is 150 mm.
According to the process, the original flax fibers are subjected to impurity removal and mechanical carding, and are boiled and bleached by a sodium hydroxide solution, a sodium silicate solution and a hydrogen peroxide solution, and then a nano-silica silver-carrying solution is obtained by a method of fixing silver ions in a silver nitrate solution in silica nano-micropores, so that the change of the crystallinity and the orientation degree of the molecular structure of the flax fibers is realized, the strength and the antibacterial property of the flax fiber yarns are improved in the processing and manufacturing process, the wrinkling degree of the flax fibers is effectively reduced, and the defects that the flax fibers are compact in structure, high in hygroscopicity, chemicals are not easy to diffuse into the fibers, and obvious defects such as chromatic aberration, white cores and the like can occur are overcome;
(2) flax is an annual herbaceous plant which is easy to take and has the advantage of good recycling of ecological plant resources, boiling and bleaching the original flax fiber by a sodium hydroxide solution, a sodium silicate solution and a hydrogen peroxide solution, then the silver ion in the silver nitrate solution is fixed in the nanometer silicon dioxide micropores, the silver-loaded flax fiber yarn can be provided for the aspects of clothes, shoes and hats, bedding, home decoration, medical protection, health care package and the like, the fabric is superior to cotton fabric in no protection effect on bacteria, superior to petrochemical product in stuffy cover and air impermeability, has the advantages of moisture absorption and release property (energy), bacteriostasis and antistatic property, therefore, the medicine has the advantages of effectively avoiding skin infection and superficial skin fungal infection of trauma patients and incision infection after surgical incision operation, being beneficial to postpartum recovery of puerperae and the like no matter taking or medical use.
Drawings
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
As further described below in the context of the present invention, the process of the present invention comprises the steps of,
(1) introducing the raw materials into a flax beam splitter, carrying out directional transfer through a traction mechanism, combining the transmission connection of a lapping mechanism and a driving mechanism to realize the automatic winding and the working speed in the head-tail lapping process of the fiber bundles: less than or equal to 5m/min, and the temperature is (28-40) DEG C;
(2) laying and beating ramie bundles into a ramie holder, enabling the ramie holder to enter a front automatic machine along a track of the front automatic machine, uniformly laying two bundles of ramie into two sides of a screw rod in the ramie holder by means of a special device, pushing the ramie holder to the other needle bar from one needle bar, repeatedly carding and splitting the ramie bundles on the ramie holder by 18 needle bars on a needle curtain respectively, and sequentially arranging the 18 needle bars on the needle curtain, wherein the first needle bar is a hollow needle, the second needle bar is a U-type needle, the third needle bar is a No. 1 needle, the fourth needle bar is a No. 2 needle, the fifth needle bar is a No. 3 needle, the sixth needle bar is a No. 4 needle, the seventh needle bar is a No. 5 needle, the eighth needle bar is a No. 6 needle, the ninth needle bar is a No. 8 needle, the tenth needle bar is a No. 10 needle, and the tenth needle bar is a No. 12 needle. The twelfth needle is 14-gauge needle, the thirteenth needle is 16-gauge needle, the fourteenth needle is 18-gauge needle, the fifteenth needle is 20-gauge needle, the sixteenth needle is 20-gauge needle, the seventeenth needle is 22-gauge needle, and the eighteenth needle is 10-gauge needle.
(3) After the ramie bundles on the ramie holder are combed by the left carding machine, one end of the ramie tip part which is suspended on the ramie holder is combed, the ramie holder is overturned and straightened by a special lever along a track which connects the left carding machine and the rear automatic machine, and the right carding machine is used for combing. The structure and the working process of the right carding machine are completely the same as those of the left carding machine. After the ramie bundles are combed by 18 needle bars on a needle curtain of a right carding machine, every 2 ramie strips pass through a combining plate by a feeding mechanism and a drafting mechanism and are combined into the ramie bundles meeting the actual quality standard requirements, and the working speed is as follows: (5-10) m/min. Dividing into high and low numbers according to quality, and bundling and stacking respectively;
(4) laying the ramie bundles on a ramie laying curtain of a flax combing machine, entering a gilling machine for production and processing after production and processing (the working speed is less than or equal to 10 m/min), wherein the sliver outlet speed of the gilling machine is 50-150 m/min, the front gauge is 28-63 mm, the number of the sliver is 102 multiplied by 5102 multiplied by 5, the specification phi (600-700) mm multiplied by 1000mm of a feeding sliver can and the specification (mm) phi (400-700) mm multiplied by 1000mm of an output sliver can are obtained;
(5) the ramie bundles enter a table board through a sliver guide roller and a compression roller in a sliver can mode to be arranged in order, the ramie bundles are fed into a combing machine, the sliver can has the specification phi (700 multiplied by 1000) mm, a feeding box is matched with nine rows of round needle sheets, wherein 5 needles/10 mm2 sheets, 6 needles/10 mm3 sheets and 7 needles/10 mm4 sheets, and the number of degrees of a needle area of the round comb occupying the whole circumference is 202 degrees. The strip discharging speed is 50-150 m/min, the main body length is 36mm, the quality length is 39mm, and the moisture regain is 4-6.9%;
(6) processing the ramie bundles into flax roves with different counts and different twists required by products by a roving machine, wherein the working speed is as follows: (150 to 250) m/min.
(7) Opening a clean water valve, adding clean water which is about equal to 2/3 of the volume of a boiling and bleaching pot, putting the flax roving into the boiling and bleaching pot, and respectively feeding 1-5 percent of prepared sodium hydroxide (for the dosage of absolutely dry flax fibers), 0.5-2 percent of sodium silicate (for the dosage of absolutely dry flax fibers) and 3-10 percent of prepared hydrogen peroxide (for the dosage of the absolutely dry flax fibers) into the boiling and bleaching pot from different pipelines within 5 min. Keeping the temperature at 70 + -5 deg.C for 30min, discharging oxygen bleaching solution from the boiling and bleaching pot, and washing with circulating water for 30 min;
(8) respectively putting 5-25 per mill (for the amount of the absolutely dry flax fibers) of the nano silicon dioxide into a silver nitrate preparation barrel with 1-5 per mill (for the amount of the absolutely dry flax fibers) from different pipelines within 3min, preserving heat at 45 +/-5 ℃, and stirring for 30min for later use;
(9) feeding prepared fatty alcohol-polyoxyethylene ether 0.1-0.5 per mill (for absolute dry flax fiber), mixed solution of nano silicon dioxide and silver nitrate and sodium carboxymethylcellulose 3-10 per mill (for absolute dry flax fiber) into a boiling and bleaching pot from different pipelines within 10min, preserving heat at 80 +/-5 ℃ for 30min, discharging silver-carrying liquid from the boiling and bleaching pot, and washing with circulating water for 30-45 min;
(10) taking out the flax roving from the boiling and bleaching pot, standing for 60min, feeding the flax roving into a flax wet spinning frame, leading the roving out of a roving tube on the roving frame, entering a water tank through a guide bar rod and a porcelain tube, and entering a drafting mechanism through a transverse guide bar after soaking. The drafting mechanism is a three-roller double-zone large drafting device consisting of a feeding roller, a middle roller and a drafting roller, the middle upper roller and the front upper roller are smooth rollers the surfaces of which are sleeved with semi-hard rubber rings, the flax roving is drafted and attenuated in the drafting zone by adopting pneumatic pressurization, passes through a yarn guide hook to be twisted into spun yarn and is wound on a bobbin, and the spindle speed is 6500 +/-100 r/min;
(11) the temperature of the drying oven of the dryer is (100 +/-10) DEG C, the upper limit is controlled below 110 ℃, and the moisture regain is less than or equal to 10 percent;
(12) and introducing the dried flax cop into a bobbin winder, wherein the bobbin winder has an electronic yarn-breaking automatic stop function, and can be used for removing defects and impurities on the yarn, which influence the quality of the fabric, and forming knotless yarn as much as possible, so that the yarn breakage rate in the subsequent process is reduced. The winding speed and density are (300-1000) m/min, the diameter and the stroke of the cone yarn are less than or equal to 290mm, and the stroke is 150 mm.
The name of the chemicals used in the above process and the manufacturer (seller) are as follows:
sodium carboxymethylcellulose (carboxymethyl Cellulose) (abbreviated as CMC, Zibohai billows chemical Co., Ltd., or Baoding Shanghui Polymer science Co., Ltd.);
nano-silicon dioxide (chemical abbreviation: nano-SiO)
2Nanping Jia Mao nanometer science and technology development Co., Ltd., Fujia province, or Shandong Li Hua New Material Co., Ltd.);
silver nitrate (Silver nitrate) (chemical abbreviation: AgNO)
3Beijing Huake Sheng chemical products, Inc., or Shaanxi Kaida chemical industry, Inc.);
sodium silicate (Sodium silicate) (chemical abbreviation: Sodium silicate, Na)
2SiO
3Qingdao gulf group company, or Wuhan Mengqi science and technology, Inc.);
sodium hydroxide (Sodium hydroxide) (abbreviated as caustic soda, NaOH, vickers chemical products, Inc., Cangzhou, or Tianjin Tongliada chemical, Inc.);
fatty alcohol polyoxyethylene ether (Primary alcohol Ethoxylate) (chemical abbreviation: penetrant, JFC, Jiangsu province, Haian petrochemical plant, or Nantong Hongsheng chemical Co., Ltd.);
hydrogen peroxide (chemical abbreviation: Hydrogen peroxide, H)
2O
2Zhengzhou Wolong disinfection technology, Inc., or Nantong Hongshi chemical, Inc., Jingzhou, capital of the ancient state of Chu river chemical, Inc.).
The equipment and manufacture (sale) manufacturers used in the process:
a flax beam splitter: the screen mesh manufacturing method is manufactured by a silk screen mechanical factory in Cheng in North of the river, or manufactured by Hangzhou Fujis automated equipment Co., Ltd, and manufactured by Zhejiang Ruizhong robot Co., Ltd;
hackling machine (FX101 type): manufactured by Zhejiang gold eagle GmbH;
slivering machine (AP-500 type): wanchuan mechanical devices, Inc. of Dongguan city;
flax comber (FX151D type): manufactured by Qingdao Chenglijia machines, Inc.;
gillbox (FB423 type): manufactured by Shanghai one-spinning machines, Inc.;
combing machine (model QFA 201E): pacific electromechanical (group) limited, or Qingdao Pengyu textile machinery, No-Sn seventh textile machinery, Inc.;
roving frame (FA493/FA494 type): qingdao Anlun group textile machinery, Inc., or Hebei fugang group textile machinery, Inc.;
boiling and bleaching the pot: wuxi Yilida chemical printing and dyeing machinery, Limited liability company, or Wuxi Guketou general equipment factory;
wet spinning frame (FX506 type): zhejiang gold eagle, Inc., or east platform Mzcrine frame, Inc.;
dryer (JF600-1 type): henan Hongxing mining machinery, Inc., or Zhengzhou Zhugong machinery Equipment, Inc.;
winder (GA018 type): jiangsu Zhengtai textile machinery plant, or Jiangsu Xingshun machinery, Inc.
According to the method, the original ramie stripes are subjected to impurity removal and mechanical carding, the formed flax roving is boiled and bleached by a sodium hydroxide solution, a sodium silicate solution and a hydrogen peroxide solution, and then the nano silicon dioxide silver-carrying solution is obtained by a method of fixing silver ions in a silver nitrate solution in silicon dioxide nano micropores, so that the change of the crystallinity and the orientation degree of the molecular structure of the flax fibers is realized, the strength of the flax fiber yarns is improved, the wrinkling degree of the flax fibers is effectively reduced, and the silver-carrying, antibacterial performance and color difference of the flax fibers are improved. The invention realizes a flax fiber impregnation process preparation and a chromatic aberration control method thereof, and particularly relates to a production impregnation process, a chromatic aberration control and silver-carrying treatment process technology and a flow thereof.
Claims (9)
1. A method for preparing silver-loaded flax fibers by an impregnation process is characterized by comprising the following steps,
step 1) splitting a raw material flax into bundles, beating the flax bundles, carding, and processing the flax bundles into flax roving by a roving frame;
step 2), putting the flax roving into a boiling and bleaching pot, adding clear water with the volume of 2/3 of the boiling and bleaching pot, putting sodium hydroxide, sodium silicate and hydrogen peroxide into the boiling and bleaching pot, preserving the heat for 60min within the temperature range of 80-90 ℃, then discharging oxygen bleaching liquid from the boiling and bleaching pot, and washing the flax roving for 30min by using circulating water;
step 3), adding nano silicon dioxide and silver nitrate into clear water, and stirring for 30min at the temperature of 40-50 ℃ to obtain a nano silicon dioxide and silver nitrate mixed solution for later use;
step 4), adding fatty alcohol-polyoxyethylene ether, mixed solution of nano silicon dioxide and silver nitrate and sodium carboxymethylcellulose into a boiling and bleaching pot, preserving heat for 30min at the temperature of 75-85 ℃, then discharging silver-carrying liquid from the boiling and bleaching pot, and washing flax roving for 30 min-45 min by using circulating water;
and 5), taking out the flax roving from the boiling and bleaching pot, standing for 60min, putting the flax roving into a wet spinning frame to be twisted into flax spun yarns, and drying and spooling to obtain the finished flax fiber.
2. The method for preparing silver-loaded flax fibers by the impregnation process as claimed in claim 1, wherein in step 2) the silver-loaded flax fibers are impregnated with the solution
The adding amount of sodium hydroxide is 1-5% of the mass of the oven-dried flax fiber to be processed, the using amount of sodium silicate is 0.5-2% of the using amount of the oven-dried flax fiber to be processed, the using amount of hydrogen peroxide is 3-10% of the using amount of the oven-dried flax fiber to be processed, and the adding components respectively enter a boiling and bleaching pot from different pipelines within 5 min.
3. The method for preparing silver-carrying flax fibers by an impregnation process as claimed in claim 1, wherein clear water is firstly added into the preparation barrel in the step 3), the addition amount of the nano-silica is 5-25 per mill of the mass of the completely dried flax fibers to be processed, the addition amount of the silver nitrate is 1-5 per mill of the mass of the completely dried flax fibers to be processed, the nano-silica and the silver nitrate are respectively fed into the preparation barrel from different pipelines within 3min, the heat preservation is carried out within the range of 45 +/-5 ℃, and the stirring is carried out for 30min for standby.
4. The method for preparing the silver-carrying flax fiber by the impregnation process as claimed in claim 1, wherein the fatty alcohol-polyoxyethylene ether is added in an amount of 0.1 to 0.5 per mill of the amount of the completely dried flax fiber, the sodium carboxymethyl cellulose is added in an amount of 3 to 10 per mill of the amount of the completely dried flax fiber, the three substances are respectively fed into a boiling and bleaching pot from different pipelines within 10min, the temperature is kept at 80 +/-5 ℃ for 30min, then the silver-carrying liquid is discharged from the boiling and bleaching pot, and the washing is carried out with circulating water for 30 to 45 min.
5. The method of making silver-loaded flax fibers in an impregnation process of claim 1,
the method is characterized in that in the step 1), flax raw materials are introduced into a flax beam splitter firstly, the flax beam splitter carries out directional traction through a traction mechanism in the flax beam splitter, and the automatic winding and conveying speed of a fiber bundle in the head-tail lapping process are realized through a lapping mechanism: less than or equal to 5m/min, and the temperature is (28-40) DEG C;
(2) laying and beating the flax roving in the previous step into flax bundles in a flax gripper,
(3) the ramie bundles on the ramie clamping device are sequentially carded by a left carding machine and a right carding machine, then every 2 ramie strips pass through a feeding mechanism and a drafting mechanism and are combined into the ramie bundles meeting the actual quality standard requirements, and the working speed is as follows: (5-10) m/min;
(4) the combined ramie bundles are laid on a ramie laying curtain of a flax combing machine for processing (the working speed is less than or equal to 10 m/min), then the ramie bundles enter a gilling machine for processing, the sliver outlet speed of the gilling machine is 50-150 m/min, the front gauge is 28-63 mm, the number of the ramie bundles is 102 multiplied by 5102 multiplied by 5, the specifications of a feeding sliver can are phi (600-700) mm multiplied by 1000mm, and the specifications of an output sliver can are phi (400-700) mm multiplied by 1000 mm;
(5) the ramie bundles enter a deck plate through a sliver guide roller and a compression roller in a sliver can mode to be arranged in order, the ramie bundles are fed into a combing machine, the sliver can is phi (700 multiplied by 1000) mm in specification, a feeding box is matched with nine rows of round needle sheets, wherein 5 needles/10 mm2 sheets, 6 needles/10 mm3 sheets and 7 needles/10 mm4 sheets, the number of degrees of a needle area of the round comb occupying the whole circumference is 202 degrees, the sliver outlet speed is 50-150 m/min, the length of a main body is 36mm, the quality length is 39mm, and the moisture regain is 4-6.9 percent;
(6) and finally, processing the ramie bundles into flax roves with different counts and different twists required by products by a roving machine, wherein the working speed is as follows: (150 to 250) m/min.
6. The method of making silver-loaded flax fibers in an impregnation process of claim 5,
the ramie bundle is walked into the front automaton at the ramie holder along the front automaton track, beats two bundles into the ramie with the help of special device and evenly lays into the both sides of screw rod in the ramie holder, and the ramie holder is pushed to another needle bar from a needle bar, and the ramie bundle on the ramie holder is combed repeatedly respectively and is split by 18 needle bars on the needle curtain, and 18 needle bars comb needle on the needle curtain arranges in proper order: the first needle is a hollow needle, the second needle is a U-shaped needle, the third needle is a No. 1 needle, the fourth needle is a No. 2 needle, the fifth needle is a No. 3 needle, the sixth needle is a No. 4 needle, the seventh needle is a No. 5 needle, the eighth needle is a No. 6 needle, the ninth needle is a No. 8 needle, the tenth needle is a No. 10 needle, the eleventh needle is a No. 12 needle, the twelfth needle is a No. 14 needle, the thirteenth needle is a No. 16 needle, the fourteenth needle is a No. 18 needle, the fifteenth needle is a No. 20 needle, the sixteenth needle is a No. 20 needle, the seventeenth needle is a No. 22 needle, and the eighteenth needle is a No. 10 needle.
7. The method of making silver-loaded flax fibers in an impregnation process of claim 1,
and 5), taking out the flax roving from the boiling and bleaching pot, standing for 60min, feeding the flax roving into a flax wet spinning frame, leading the roving out of a roving tube on a roving frame, feeding the roving into a water tank through a guide bar and a porcelain tube, wetting the roving, feeding the wetted roving into a drafting mechanism through a transverse guide bar, wherein the drafting mechanism is a three-roller double-area large drafting device consisting of a feeding roller, a middle roller and a drafting roller, the middle upper roller and the front upper roller are smooth rollers with semi-hard rubber rings sleeved on the surfaces, drafting and the flax roving is drafted and attenuated in the drafting area by pneumatic pressurization, passes through a guide hook to be twisted into spun yarn and is wound on a bobbin, and the spindle speed is 5500 +/-100 r/min.
8. The method for preparing silver-loaded flax fiber by using impregnation process according to claim 1, wherein in step 5), the temperature of the drying oven of the dryer is (100 plus or minus 10) ℃, the upper limit is controlled below 110 ℃, and the moisture regain is less than or equal to 10%.
9. The method for preparing the silver-loaded flax fiber by the impregnation process according to claim 1, wherein in the step 5), the dried flax cop is introduced into a winder, the winder has an electronic yarn-breaking automatic stop function, defects and impurities which affect the quality of the fabric on the yarn are removed, knotless yarn is formed as much as possible, the yarn breakage rate in the subsequent process is reduced, the winding speed and the density are (300-1000) m/min, the diameter and the stroke of the cone yarn are less than or equal to 290mm, and the stroke is 150 mm.
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