CN111270395A - Water-absorbing breathable knitted fabric, preparation method thereof and double-sided weft circular knitting machine - Google Patents
Water-absorbing breathable knitted fabric, preparation method thereof and double-sided weft circular knitting machine Download PDFInfo
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- CN111270395A CN111270395A CN202010170698.7A CN202010170698A CN111270395A CN 111270395 A CN111270395 A CN 111270395A CN 202010170698 A CN202010170698 A CN 202010170698A CN 111270395 A CN111270395 A CN 111270395A
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
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- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/94—Driving-gear not otherwise provided for
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B9/00—Circular knitting machines with independently-movable needles
- D04B9/10—Circular knitting machines with independently-movable needles with two needle cylinders for purl work or for Links-Links loop formation
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C7/00—Heating or cooling textile fabrics
- D06C7/02—Setting
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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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/144—Alcohols; Metal alcoholates
- D06M13/148—Polyalcohols, e.g. glycerol or glucose
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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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
- D06M13/248—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing sulfur
- D06M13/262—Sulfated compounds thiosulfates
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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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
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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
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/50—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with organometallic compounds; with organic compounds containing boron, silicon, selenium or tellurium atoms
- D06M13/51—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond
- D06M13/513—Compounds with at least one carbon-metal or carbon-boron, carbon-silicon, carbon-selenium, or carbon-tellurium bond with at least one carbon-silicon bond
- D06M13/5135—Unsaturated compounds containing silicon atoms
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- 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
- 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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- 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
- 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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- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
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- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2201/00—Cellulose-based fibres, e.g. vegetable fibres
- D10B2201/01—Natural vegetable fibres
- D10B2201/02—Cotton
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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
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
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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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
Abstract
The invention discloses a water-absorbing breathable knitted fabric, a preparation method thereof and a double-sided weft circular knitting machine, wherein the water-absorbing breathable knitted fabric is formed by knitting surface yarns and lining yarns; the veil raw materials are chitosan and polyester filament: the lining yarn is made of cotton fibers and polypropylene fibers. According to the water-absorbing breathable knitted fabric, the surface yarns are made of chitosan and polyester filaments, the inner yarns are made of cotton fibers and polypropylene fibers, and the water absorption and the breathability of the fabric are improved through functional complementation, so that the fabric is stable and does not deform, and the fabric is comfortable, dry and breathable to wear.
Description
Technical Field
The invention relates to the technical field of knitted fabrics, in particular to a water-absorbing breathable knitted fabric, a preparation method thereof and a double-sided circular weft knitting machine.
Background
The economic development speed is faster and faster, the requirement of consumers on the comfort level of the clothes is higher and higher, and particularly, the requirements on the air permeability and the moisture absorption of the clothes are higher when the temperature is higher and the amount of exercise is larger. Generally, when the temperature is high and the amount of exercise is large, the body is easy to sweat, and the clothes are easy to adhere to the skin, so that the clothes are sticky, cool and wet, and extremely uncomfortable.
The cotton fiber has better hygroscopicity and better absorbability to sweat stains, but is easy to deform and wrinkle after absorbing the sweat stains for many times, and the normal wearing of the clothes is seriously influenced.
Chitosan has stronger hydroscopicity, and the water-absorbing capacity can not weaken after washing many times in addition, this is because chitosan has fine aperture structure, has the effect of capillary, and absorptive sweat can distribute away rapidly, can avoid the bacterium to depend on and breed, has certain antibacterial action.
Chinese patent CN109385737A discloses a water-absorbing quick-drying knitted fabric. The fabric is a single-sided knitted fabric, comprises a surface layer and an inner layer with a concave-convex structure, and is provided with air holes with the size of 5 multiplied by 103μm2～30×103μm2. The knitted fabric has excellent water absorption and quick drying properties and excellent air permeability, and is particularly suitable for manufacturing summer T-shirts, sports clothes and the like.
Chinese patent CN107953645B discloses a water-absorbing breathable knitted fabric and a manufacturing process and application thereof, the water-absorbing breathable knitted fabric comprises a base fabric layer and a PVC layer, and the PVC layer comprises the following components in parts by weight: 95-135 parts of PVC powder; 1-5 parts of a stabilizer; 18-33 parts of a reinforcing agent; 2-10 parts of titanium dioxide; 0.1-1 part of grinding aid; 70-100 parts of environment-friendly oil; the stabilizer comprises at least one of a high-efficiency calcium zinc stabilizer and a calcium stearate stabilizer; the reinforcing agent comprises at least one of light calcium carbonate and argil; the grinding aid comprises at least one of stearic acid and sodium hexametaphosphate. The water-absorbing breathable knitted fabric has the advantages of good water absorption and breathability.
Therefore, in order to solve the above problems, the present invention provides a water-absorbent breathable knitted fabric and a method for manufacturing the same. The specific surface yarn and the specific lining yarn are selected, so that the water-absorbing air-permeable fabric has better water-absorbing air permeability.
Disclosure of Invention
The invention aims at the problems and provides a water-absorbing breathable knitted fabric, a preparation method thereof and a double-sided weft circular knitting machine.
The technical scheme adopted by the invention for solving the problems is as follows: a water-absorbing breathable knitted fabric is formed by weaving surface yarns and lining yarns; wherein, the raw materials of the veil are chitosan and polyester filament: the lining yarn is made of cotton fiber and polypropylene fiber.
In the invention, the chitosan has a fine pore structure and has the function of a capillary, absorbed sweat can be rapidly diffused, the chitosan has strong water absorption, the water absorption capacity is not weakened after multiple times of washing, bacteria can be prevented from attaching and breeding, and a certain antibacterial effect is achieved; the polyester filament yarn hardly absorbs water, so that the moisture can be rapidly removed, and the dryness and the air permeability of the fabric are kept; the cotton fiber has better water absorption, the polypropylene fiber has better sweat-discharging and quick-drying effects, the cotton fiber can be prevented from absorbing water for many times to deform and wrinkle, and the comfort of the fabric can be improved.
Further, the mass ratio of chitosan to polyester filament yarn in the raw material of the face yarn is 1-2: 5; the mass ratio of the cotton fibers to the polypropylene fibers in the lining yarn raw material is 1-2: 3.
further, the chitosan is prepared from chitosan with a low deacetylation degree and chitosan with a medium deacetylation degree according to a mass ratio of 1: 2.2-3.2.
Furthermore, the total titer of the polyester filament is 50dtex to 100dtex, and the titer of the single filament is 1.0dtex to 1.5 dtex.
Another object of the present invention is to provide a method for preparing the water-absorbing breathable knitted fabric, which comprises the following steps:
step I, preparing 0.15-0.25 mol/L acetic acid solution, then adding the chitosan into the acetic acid solution, preserving the heat for 20-30 min in a water bath at the temperature of 45-65 ℃, then stirring for 10-20 min, and carrying out electrostatic spinning to obtain chitosan fiber yarns;
II, respectively soaking the chitosan fiber yarns and the polyester filament yarns obtained in the step I in a surfactant solution for 1-3 min, drying and spinning into veil; wherein the surfactant is prepared from sodium lauryl sulfate, tween and propylene glycol in a mass ratio of 1: 0.3-0.5: 0.2;
step III, respectively soaking the cotton fibers and the polypropylene fibers in a silane coupling agent solution for 2-3 min, drying and spinning into lining yarns; wherein the silane coupling agent is selected from any two of KH550, KH560, KH570, KH602 and KH 792;
and step IV, knitting the surface yarn obtained in the step II and the lining yarn obtained in the step III by using a 24G double-faced weft circular knitting machine, and performing heat setting after scutching to obtain the water-absorbing breathable knitted fabric.
Further, in the step I, the adding ratio of the acetic acid solution to the chitosan is 10 mL: 2.0g to 2.5 g.
Further, in step IV, the heat setting specifically comprises: firstly, baking for 20-30 s at the temperature of 175-185 ℃, and then baking for 60-90 s at the temperature of 120-130 ℃.
Further, in the step IV, the process of bleaching, dyeing, washing and finished product setting is also included after the heat setting.
A double-sided weft circular knitting machine adopted in the step IV comprises a belt tensioning mechanism, wherein the belt tensioning mechanism comprises a base plate, a first steering wheel, a second steering wheel, a first tensioning wheel, a first swing rod, a first tensioning spring, a second tensioning wheel, a second swing rod, a second tensioning spring and a sliding block, the base plate is fixedly arranged on a rack of the double-sided weft circular knitting machine, the first steering wheel and the second steering wheel are both rotatably arranged on the base plate, the middle part of the first swing rod is rotatably arranged on the base plate, the first tensioning wheel is rotatably arranged at one end of the first swing rod, the other end of the first swing rod is connected with the sliding block through the first tensioning spring, the middle part of the second swing rod is rotatably arranged on the base plate, the second tensioning wheel is rotatably arranged at one end of the second swing rod, the other end of the second swing rod is connected with the sliding block through the second tensioning spring, and the sliding block is adjustably and slidably arranged on the, the belt sequentially bypasses the first steering wheel, the first tensioning wheel, the second tensioning wheel and the second steering wheel.
Furthermore, a sliding column is connected to the sliding block, the sliding column is arranged in a sliding hole of the substrate in a sliding mode, the other end of the sliding column penetrates through the sliding hole and is connected with a stop block, and the stop block abuts against the back side of the substrate.
Furthermore, the belt tensioning mechanism further comprises an adjusting component, the adjusting component comprises a base, a floating press block, a press plate and a pair of compression springs, the base is adjustably arranged on the base plate, the floating press block is slidably sleeved on the first guide rod and the second guide rod of the base, the threaded rod part of the first guide rod penetrates through the press plate and the first nut threaded connection, the threaded rod part of the second guide rod penetrates through the press plate and the second nut threaded connection, the pair of compression springs are respectively sleeved on the first guide rod and the second guide rod, the compression springs are arranged between the floating press block and the press plate, the extension rod connected to the stop block is clamped between the base and the front surface of the floating press block, and when the belt tension exceeds the preset maximum tension, the extension rod can move from the first platform part to the second platform part, so as to release part of the elastic potential energy stored by the first tensioning spring and the second tensioning spring.
Furthermore, the first platform part and the second platform part are connected and provided with a first inclined platform part, and the second platform part is far away from one end of the first platform part and is connected and provided with a second inclined platform part.
Furthermore, the stud of the base is slidably arranged in the adjusting hole in the base plate, penetrates out of the adjusting hole and is in threaded connection with a hand wheel II.
Furthermore, a friction pad is arranged between the base and the substrate.
Furthermore, a gear is further rotatably arranged on the pressing plate, the gear is respectively meshed with the teeth on the periphery of the first nut and the teeth on the periphery of the second nut, a first hand wheel is mounted on the gear, and the thread directions of the first nut and the second nut are opposite.
The invention has the advantages that:
(1) according to the water-absorbing breathable knitted fabric, the surface yarns are made of chitosan and polyester filaments, the inner yarns are made of cotton fibers and polypropylene fibers, and the water absorption and the breathability of the fabric are improved, the fabric is stable and does not deform, and the fabric is comfortable to wear and dry and breathable through functional complementation;
(2) according to the water-absorbing breathable knitted fabric, in the production process, the surface yarn and the inner yarn are infiltrated by the surfactant solution and the silane coupling agent solution respectively, so that the combination stability of the raw materials of the surface yarn and the inner yarn can be enhanced, the texture is improved, and the water-absorbing breathable knitted fabric has long-term high-quality use;
(3) the water-absorbing breathable knitted fabric has the advantages of rich raw material sources, simple production process, low energy consumption and good economic value;
(4) according to the water-absorbing breathable knitted fabric, the double-sided weft circular knitting machine is adopted in the production process, the belt tensioning mechanism is simple to adjust and operate, the belt tension can be adjusted in real time, the belt transmission effect is good, and in addition, the belt can be prevented from being damaged due to overlarge instantaneous tension due to the arrangement of the adjusting assembly.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of the structure of the belt tensioner of the present invention.
Fig. 2 is a schematic structural diagram of the slider of the present invention.
Fig. 3 is a schematic cross-sectional view of an adjustment assembly of the present invention.
Fig. 4 is a schematic structural view of the floating compact of the present invention.
Description of reference numerals: the device comprises a base plate 1, a sliding hole 11, an adjusting hole 12, a first steering wheel 2, a second steering wheel 3, a first tensioning wheel 4, a first swing rod 41, a first tensioning spring 42, a second tensioning wheel 5, a second swing rod 51, a second tensioning spring 52, a sliding block 6, a hanging lug 61, a sliding column 62, a stop 63, an extension rod 64, an adjusting component 7, a base 71, a stud 711, a first guide rod 712, a second guide rod 713, a guide boss 714, a floating press block 72, a first through hole 721, a second through hole 722, a first platform part 723, a first inclined platform part 724, a second platform part 725, a second inclined platform part 726, a press plate 73, a compression spring 74, a first nut 75, a second nut 76, a gear 77, a first hand wheel 78, a friction pad 79, a second hand wheel 8 and.
Detailed Description
The following detailed description of embodiments of the invention, but the invention can be practiced in many different ways, as defined and covered by the claims.
Example 1
Water-absorbing breathable knitted fabric
The water-absorbing breathable knitted fabric is formed by weaving surface yarns and lining yarns; wherein, the raw materials of the veil are chitosan and polyester filament: the lining yarn is made of cotton fiber and polypropylene fiber; the mass ratio of chitosan to polyester filament yarn in the raw material of the face yarn is 1: 5; the mass ratio of the cotton fibers to the polypropylene fibers in the lining yarn raw material is 1: 3; the chitosan is prepared from low-deacetylation chitosan and medium-deacetylation chitosan according to the mass ratio of 1: 2.2; the total fineness of the polyester filament yarn is 50dtex, and the fineness of the single yarn is 1.0 dtex.
Is prepared by the following steps:
step I, preparing 0.15mol/L acetic acid solution, then adding the chitosan into the acetic acid solution, preserving the heat for 20min in a water bath with the temperature of 45 ℃, then stirring for 10min, and carrying out electrostatic spinning to obtain chitosan fiber yarns; wherein the addition ratio of the acetic acid solution to the chitosan is 10 mL: 2.0 g;
II, respectively soaking the chitosan fiber yarns and the polyester filament yarns obtained in the step I in a surfactant solution for 1min, drying and spinning into veil; wherein the surfactant is prepared from sodium lauryl sulfate, tween and propylene glycol in a mass ratio of 1: 0.3: 0.2;
step III, respectively soaking the cotton fibers and the polypropylene fibers in a silane coupling agent solution for 2min, drying and spinning into lining yarns; wherein the silane coupling agent is selected from KH550 and KH560, and the mass ratio of the two is 1: 1;
and (3) knitting the surface yarns obtained in the step (IV) and the step (II) and the lining yarns obtained in the step (III) by adopting a 24G double-sided weft circular knitting machine, and after scutching, firstly, baking for 20s under the condition that the temperature is 175 ℃, and then, baking for 60s under the condition that the temperature is 120 ℃ to obtain the water-absorbing breathable knitted fabric.
The heat setting process further comprises bleaching, dyeing, washing and finished product setting.
The water-absorbing breathable knitted fabric prepared in the embodiment is placed for 24 hours under the conditions of constant temperature and humidity and no wind (wherein, the temperature is 25 ℃ and the humidity is 65%), and then the moisture transmission rates of 11023 g/(m) m are respectively measured by a YG (B)216X type fabric moisture transmission instrument and a YG461E type digital air transmission instrument224h) air permeability 4215L/(m)2·s)。
Wherein, the 24G double-sided weft circular knitting machine comprises a belt tensioning mechanism, as shown in fig. 1, fig. 2, fig. 3 and fig. 4, the belt tensioning mechanism comprises a base plate 1, a first steering wheel 2, a second steering wheel 3, a first tensioning wheel 4, a first swing link 41, a first tensioning spring 42, a second tensioning wheel 5, a second swing link 51, a second tensioning spring 52, a sliding block 6 and an adjusting component 7, the base plate 1 is fixedly arranged on a frame of the double-sided weft circular knitting machine, the first steering wheel 2 and the second steering wheel 3 are both rotatably arranged on the front surface of the base plate 1, the middle part of the first swing link 41 is rotatably arranged on the base plate 1, the first tensioning wheel 4 is rotatably arranged at one end of the first swing link 41, the other end of the first swing link 41 is connected with a hanging lug 61 on the sliding block 6 through the first tensioning spring 42, the middle part of the second swing link 51 is rotatably arranged on the base plate 1, the second tensioning wheel 5 is rotatably arranged at one end of the second swing link, the slider 6 is connected with a square sliding column 62, the sliding column 62 is arranged in a sliding hole 11 of the substrate 1 in a sliding manner, the other end of the sliding column 62 passes through the sliding hole 11 and is connected with a stop block 63, the stop block 63 is abutted against the back side of the substrate 1, a belt 9 sequentially bypasses a first steering wheel 2, a first tensioning wheel 4, a second tensioning wheel 5 and a second steering wheel 3, the adjusting component 7 comprises a base 71, a floating press block 72, a press plate 73 and a pair of compression springs 74, a guide boss 714 arranged on the front surface of the base 71 is arranged in an adjusting hole 12 on the substrate 1 in a sliding manner, a stud 711 arranged on the guide boss 714 penetrates through the adjusting hole 12 and is in threaded connection with a second hand wheel 8, the base 71 can be locked on the substrate 1 by screwing the second hand wheel 8 in use, a first guide rod 712 and a second guide rod 713 are integrally connected on the back surface of the base 71, a first through hole 721 through which the first guide rod 712 can, the floating pressing block 72 is sleeved on the first guide rod 712 and the second guide rod 713 of the base 71 in a sliding mode through the first through hole 721 and the second through hole 722, the pressing plate 73 is rotatably provided with a first nut 75, a second nut 76 and a gear 77, the thread directions of the first nut 75 and the second nut 76 are opposite, the thread rod part at the end part of the first guide rod 712 penetrates through the pressing plate 73 to be in threaded connection with the first nut 75, the thread rod part at the end part of the second guide rod 713 penetrates through the pressing plate 73 to be in threaded connection with the second nut 76, the gear 77 is respectively meshed with the teeth on the periphery of the first nut 75 and the teeth on the periphery of the second nut 76, the gear 77 is provided with a first hand wheel 78, a pair of compression springs 74 are respectively sleeved on the first guide rod 712 and the second guide rod 713, one end of the compression spring 74 abuts against the floating pressing block 72, the other end of the compression spring 74 abuts against the, the front face of the floating pressing block 72 is provided with a first platform part 723 and a second platform part 725, the first platform part 723 and the second platform part 725 are in transition connection through a first sloping platform part 724, one end, far away from the first platform part 723, of the second platform part 725 is connected with a second sloping platform part 726, when the tension of the belt 9 exceeds a preset maximum tension, the extension rod 64 can move from the first platform part 723 to the second platform part 725 on the front face of the floating pressing block 72 so as to release elastic potential energy stored in the first partial tension spring 42 and the second tension spring 52, and a user can adjust the size of the preset maximum tension by rotating the first handwheel 78.
As shown in fig. 3, in order to increase the frictional force between the susceptor 71 and the substrate 1, a friction pad 79 is provided between the susceptor 71 and the substrate 1.
As shown in fig. 1, 2, 3 and 4, when the belt 9 is tensioned, the second hand wheel 8 is unscrewed, then the position of the base 71 on the base plate 1 is adjusted, the slide block 6 is driven to move by the extension rod 64, the moving slide block 6 pulls the first tension spring 42 and the second tension spring 52 to rotate the first swing rod 41 and the second swing rod 51, the first tension wheel 4 and the second tension wheel 5 move outwards to tension the belt 9, when the tension of the belt 9 meets the requirement, the second hand wheel 8 is retightened, the operation is very convenient, and in the using process, the first tension spring 42 and the second tension spring 52 can adjust the positions of the first tension wheel 4 and the second tension wheel 5 in real time through the first swing rod 41 and the second swing rod 51, so that the tension of the belt 9 is always kept in a stable range, the transmission effect of the belt 9 is good, and when the tension of the belt 9 exceeds the preset maximum tension, the tension of the belt 9 is transmitted to the first swing rod 41 and the second swing rod 51 to rotate the first swing rod 41 and the second swing, and then the first swing rod 41 and the second swing rod 51 draw the sliding block 6 through the first tension spring 42 and the second tension spring 52, so that the extension rod 64 connected with the sliding block 6 moves from the first platform 723 to the second platform 725 against the elastic force of the compression spring 74, and the first tension spring 42 and the second tension spring 52 release part of the stored elastic potential energy, thereby avoiding the damage of the belt 9 due to excessive instantaneous tension, then the machine is stopped for inspection, and the extension rod 64 is adjusted to reset and the belt 9 is tensioned again after the fault is eliminated.
Example 2
Water-absorbing breathable knitted fabric
The water-absorbing breathable knitted fabric is formed by weaving surface yarns and lining yarns; wherein, the raw materials of the veil are chitosan and polyester filament: the lining yarn is made of cotton fiber and polypropylene fiber; the mass ratio of chitosan to polyester filament yarn in the raw material of the face yarn is 2: 5; the mass ratio of the cotton fibers to the polypropylene fibers in the lining yarn raw material is 2: 3; the chitosan is prepared from low-deacetylation chitosan and medium-deacetylation chitosan according to the mass ratio of 1: 3.2; the total titer of the polyester filament is 100dtex, and the single filament titer is 1.5 dtex.
Is prepared by the following steps:
step I, preparing 0.25mol/L acetic acid solution, then adding the chitosan into the acetic acid solution, preserving the heat for 30min in a water bath with the temperature of 65 ℃, then stirring for 20min, and carrying out electrostatic spinning to obtain chitosan fiber yarns; wherein the addition ratio of the acetic acid solution to the chitosan is 10 mL: 2.5 g;
II, respectively soaking the chitosan fiber yarns and the polyester filament yarns obtained in the step I in a surfactant solution for 3min, drying and spinning into veil; wherein the surfactant is prepared from sodium lauryl sulfate, tween and propylene glycol in a mass ratio of 1: 0.5: 0.2;
step III, respectively soaking the cotton fibers and the polypropylene fibers in a silane coupling agent solution for 3min, drying and spinning into lining yarns; wherein the silane coupling agent is selected from KH570 and KH602, and the mass ratio of the two is 1: 2;
and D, weaving the surface yarn obtained in the step IV and the step II and the lining yarn obtained in the step III by using a 24G double-faced weft circular knitting machine, drying for 30s at 185 ℃ after scutching, and drying for 90s at 130 ℃ to obtain the water-absorbing breathable knitted fabric.
The heat setting process further comprises bleaching, dyeing, washing and finished product setting.
The water-absorbing breathable knitted fabric prepared in the above embodiment is placed under constant temperature and humidity and no wind (wherein, the temperature is 25 ℃ and the humidity is 65%) for 24h, and then the moisture permeability is respectively measured to be 10982 g/(m) by using a YG (B)216X type fabric moisture permeability instrument and a YG461E type digital air permeability instrument224h) air permeability 4365L/(m)2·s)。
Example 3
Water-absorbing breathable knitted fabric
The water-absorbing breathable knitted fabric is formed by weaving surface yarns and lining yarns; wherein, the raw materials of the veil are chitosan and polyester filament: the lining yarn is made of cotton fiber and polypropylene fiber; the mass ratio of chitosan to polyester filament yarn in the raw material of the face yarn is 1.2: 5; the mass ratio of the cotton fibers to the polypropylene fibers in the lining yarn raw material is 1.2: 3; the chitosan is prepared from low-deacetylation chitosan and medium-deacetylation chitosan according to the mass ratio of 1: 2.5; the total titer of the polyester filament is 60dtex, and the single filament titer is 1.1 dtex.
Is prepared by the following steps:
step I, preparing 0.18mol/L acetic acid solution, then adding the chitosan into the acetic acid solution, preserving the heat for 22min in a water bath with the temperature of 50 ℃, then stirring for 12min, and carrying out electrostatic spinning to obtain chitosan fiber yarns; wherein the addition ratio of the acetic acid solution to the chitosan is 10 mL: 2.1 g;
II, respectively soaking the chitosan fiber yarns and the polyester filament yarns obtained in the step I in a surfactant solution for 3min, drying and spinning into veil; wherein the surfactant is prepared from sodium lauryl sulfate, tween and propylene glycol in a mass ratio of 1: 0.5: 0.2;
step III, respectively soaking the cotton fibers and the polypropylene fibers in a silane coupling agent solution for 3min, drying and spinning into lining yarns; wherein, the silane coupling agent is selected from KH550 and KH792, and the mass ratio of the two is 2: 1;
and D, weaving the surface yarn obtained in the step IV and the step II and the lining yarn obtained in the step III by using a 24G double-faced weft circular knitting machine, drying for 28s under the condition that the temperature is 17:7 ℃ after scutching, and drying for 80s under the condition that the temperature is 122 ℃ to obtain the water-absorbing breathable knitted fabric.
The heat setting process further comprises bleaching, dyeing, washing and finished product setting.
The water-absorbing breathable knitted fabric prepared in the above embodiment is placed for 24 hours under the conditions of constant temperature and humidity and no wind (wherein, the temperature is 25 ℃ and the humidity is 65%), and then the moisture transmission rates of the fabric moisture transmission instrument type YG (b)216X and the digital moisture transmission instrument type YG461E are respectively measured to be 12156 g/(m) m224h), air permeability 4405L/(m)2·s)。
Example 4
Water-absorbing breathable knitted fabric
The water-absorbing breathable knitted fabric is formed by weaving surface yarns and lining yarns; wherein, the raw materials of the veil are chitosan and polyester filament: the lining yarn is made of cotton fiber and polypropylene fiber; the mass ratio of chitosan to polyester filament yarn in the raw material of the face yarn is 1.8: 5; the mass ratio of the cotton fibers to the polypropylene fibers in the lining yarn raw material is 1.8: 3; the chitosan is prepared from low-deacetylation chitosan and medium-deacetylation chitosan according to the mass ratio of 1: 3.0; the total titer of the polyester filament is 90dtex, and the single filament titer is 1.4 dtex.
Is prepared by the following steps:
step I, preparing 0.23mol/L acetic acid solution, then adding the chitosan into the acetic acid solution, preserving the heat for 28min in a water bath with the temperature of 60 ℃, then stirring for 18min, and carrying out electrostatic spinning to obtain chitosan fiber yarns; wherein the addition ratio of the acetic acid solution to the chitosan is 10 mL: 2.4 g;
II, respectively soaking the chitosan fiber yarns and the polyester filament yarns obtained in the step I in a surfactant solution for 1min, drying and spinning into veil; wherein the surfactant is prepared from sodium lauryl sulfate, tween and propylene glycol in a mass ratio of 1: 0.3: 0.2;
step III, respectively soaking the cotton fibers and the polypropylene fibers in a silane coupling agent solution for 2min, drying and spinning into lining yarns; wherein the silane coupling agent is selected from KH560 and KH602, and the mass ratio of the two is 1: 1;
and D, weaving the surface yarn obtained in the step IV and the step II and the lining yarn obtained in the step III by using a 24G double-faced weft circular knitting machine, drying for 22s under the condition of the temperature of 182 ℃ after scutching, and drying for 70s under the condition of the temperature of 128 ℃ to obtain the water-absorbing breathable knitted fabric.
The heat setting process further comprises bleaching, dyeing, washing and finished product setting.
The water-absorbing breathable knitted fabric prepared in the embodiment is placed for 24 hours under the conditions of constant temperature and humidity and no wind (wherein, the temperature is 25 ℃ and the humidity is 65%), and then the moisture transmission capacity is respectively measured to be 13203 g/(m) by adopting a YG (B)216X type fabric moisture transmission capacity instrument and a YG461E type digital air transmission capacity instrument224h) air permeability 6215L/(m)2·s)。
Example 5
Water-absorbing breathable knitted fabric
The water-absorbing breathable knitted fabric is formed by weaving surface yarns and lining yarns; wherein, the raw materials of the veil are chitosan and polyester filament: the lining yarn is made of cotton fiber and polypropylene fiber; the mass ratio of chitosan to polyester filament yarn in the raw material of the face yarn is 1.5: 5; the mass ratio of the cotton fibers to the polypropylene fibers in the lining yarn raw material is 1.5: 3; the chitosan is prepared from low-deacetylation chitosan and medium-deacetylation chitosan according to the mass ratio of 1: 2.7; the total titer of the polyester filament is 80dtex, and the single filament titer is 1.3 dtex.
Is prepared by the following steps:
step I, preparing 0.20mol/L acetic acid solution, then adding the chitosan into the acetic acid solution, preserving the heat for 25min in a water bath with the temperature of 55 ℃, then stirring for 15min, and carrying out electrostatic spinning to obtain chitosan fiber yarns; wherein the addition ratio of the acetic acid solution to the chitosan is 10 mL: 2.3 g;
II, respectively soaking the chitosan fiber yarns and the polyester filament yarns obtained in the step I in a surfactant solution for 2min, drying and spinning into veil; wherein the surfactant is prepared from sodium lauryl sulfate, tween and propylene glycol in a mass ratio of 1: 0.4: 0.2;
step III, respectively soaking the cotton fibers and the polypropylene fibers in a silane coupling agent solution for 3min, drying and spinning into lining yarns; wherein, the silane coupling agent is selected from KH570 and KH792, and the mass ratio of the two is 1: 3;
and step IV, knitting the surface yarn obtained in the step II and the lining yarn obtained in the step III by using a 24G double-faced weft circular knitting machine, drying for 25s under the condition that the temperature is 180 ℃ after scutching, and drying for 75s under the condition that the temperature is 125 ℃ to obtain the water-absorbing breathable knitted fabric.
The heat setting process further comprises bleaching, dyeing, washing and finished product setting.
The water-absorbing breathable knitted fabric prepared in the above embodiment is placed for 24 hours under the conditions of constant temperature and humidity and no wind (wherein, the temperature is 25 ℃ and the humidity is 65%), and then the moisture transmission rates of the fabric moisture transmission instrument type YG (b)216X and the digital moisture transmission instrument type YG461E are respectively measured to be 12154 g/(m) m224h), air permeability 5864L/(m)2·s)。
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (15)
1. The water-absorbing breathable knitted fabric is characterized by being formed by weaving surface yarns and lining yarns; the veil raw materials are chitosan and polyester filament: the lining yarn is made of cotton fibers and polypropylene fibers.
2. The water-absorbing breathable knitted fabric according to claim 1, wherein the mass ratio of chitosan to polyester filaments in the raw material of the face yarn is 1-2: 5; the mass ratio of the cotton fibers to the polypropylene fibers in the lining yarn raw material is 1-2: 3.
3. the water-absorbing breathable knitted fabric according to claim 1, wherein the chitosan is prepared from low-deacetylation chitosan and medium-deacetylation chitosan in a mass ratio of 1: 2.2-3.2.
4. The water-absorbing breathable knitted fabric according to claim 1, wherein the total titer of the polyester filaments is 50dtex to 100dtex, and the titer of the single filament is 1.0dtex to 1.5 dtex.
5. A preparation method of the water-absorbing breathable knitted fabric according to claims 1 to 4, characterized by comprising the following steps:
step I, preparing 0.15-0.25 mol/L acetic acid solution, then adding the chitosan into the acetic acid solution, preserving the heat for 20-30 min in a water bath at the temperature of 45-65 ℃, then stirring for 10-20 min, and carrying out electrostatic spinning to obtain chitosan fiber yarns;
II, respectively soaking the chitosan fiber yarns and the polyester filament yarns obtained in the step I in a surfactant solution for 1-3 min, drying and spinning into veil; wherein the surfactant is prepared from sodium lauryl sulfate, tween and propylene glycol in a mass ratio of 1: 0.3-0.5: 0.2;
step III, respectively soaking the cotton fibers and the polypropylene fibers in a silane coupling agent solution for 2-3 min, drying and spinning into lining yarns; wherein the silane coupling agent is selected from any two of KH550, KH560, KH570, KH602 and KH 792;
and step IV, knitting the surface yarn obtained in the step II and the lining yarn obtained in the step III by using a 24G double-faced weft circular knitting machine, and performing heat setting after scutching to obtain the water-absorbing breathable knitted fabric.
6. The preparation method according to claim 5, wherein in the step I, the adding ratio of the acetic acid solution to the chitosan is 10 mL: 2.0g to 2.5 g.
7. The method according to claim 5, wherein in step IV, the heat setting is specifically: firstly, baking for 20-30 s at the temperature of 175-185 ℃, and then baking for 60-90 s at the temperature of 120-130 ℃.
8. The preparation method according to claim 5, wherein the step IV further comprises the processes of bleaching, dyeing, washing and final product setting after the heat setting.
9. A double-sided weft circular knitting machine as claimed in claim 5, characterized by comprising a belt tensioning mechanism, wherein the belt tensioning mechanism comprises a base plate (1), a first steering wheel (2), a second steering wheel (3), a first tensioning wheel (4), a first swing link (41), a first tensioning spring (42), a second tensioning wheel (5), a second swing link (51), a second tensioning spring (52) and a slide block (6), the base plate (1) is fixedly arranged on a frame of the double-sided weft circular knitting machine, the first steering wheel (2) and the second steering wheel (3) are both rotatably arranged on the base plate (1), the middle part of the first swing link (41) is rotatably arranged on the base plate (1), the first tensioning wheel (4) is rotatably arranged at one end of the first swing link (41), and the other end of the first swing link (41) is connected with the slide block (6) through the first tensioning spring (42), the middle of the second swing rod (51) is rotatably arranged on the base plate (1), the second tensioning wheel (5) is rotatably arranged at one end of the second swing rod (51), the other end of the second swing rod (51) is connected with the sliding block (6) through the second tensioning spring (52), the sliding block (6) is adjustably and slidably arranged on the base plate (1), and a belt (9) sequentially bypasses the first steering wheel (2), the first tensioning wheel (4), the second tensioning wheel (5) and the second steering wheel (3).
10. A double-sided weft knitting machine according to claim 9, characterized in that a sliding post (62) is connected to the slider (6), the sliding post (62) is slidably arranged in a sliding hole (11) of the base plate (1), the other end of the sliding post (62) passes through the sliding hole (11) and is connected with a stop block (63), and the stop block (63) abuts against the back side of the base plate (1).
11. The double-sided weft circular knitting machine according to claim 10, characterized in that the belt tensioning mechanism further comprises an adjusting assembly (7), the adjusting assembly (7) comprises a base (71), a floating press block (72), a press plate (73) and a pair of compression springs (74), the base (71) is adjustably arranged on the base plate (1), the floating press block (72) is slidably sleeved on a first guide rod (712) and a second guide rod (713) of the base (71), a threaded rod part of the first guide rod (712) penetrates through the press plate (73) and is in threaded connection with a first nut (75), a threaded rod part of the second guide rod (713) penetrates through the press plate (73) and is in threaded connection with a second nut (76), a pair of compression springs (74) is respectively sleeved on the first guide rod (712) and the second guide rod (713), and the compression springs (74) are arranged between the floating press block (72) and the press plate (73), and the extension rod (64) connected to the stop block (63) is clamped between the base (71) and the front surface of the floating pressing block (72), and when the tension of the belt (9) exceeds a preset maximum tension, the extension rod (64) can move from a first platform part (723) to a second platform part (725) on the front surface of the floating pressing block (72) so as to release part of elastic potential energy stored in the first tensioning spring (42) and the second tensioning spring (52).
12. A double-sided weft knitting machine according to claim 11, characterized in that a first sloping bench (724) is connected between the first platform (723) and the second platform (725), and a second sloping bench (726) is connected to the end of the second platform (725) remote from the first platform (723).
13. A double-sided weft circular knitting machine according to claim 11, characterized in that the stud (711) of the base (71) is slidably arranged in an adjusting hole (12) on the base plate (1), and the stud (711) passes through the adjusting hole (12) and is in threaded connection with a second hand wheel (8).
14. Double-sided weft circular knitting machine according to claim 13, characterized in that a friction pad (79) is arranged between the base (71) and the base plate (1).
15. A double-sided weft knitting machine according to claim 11, characterized in that a gear (77) is further rotatably arranged on the pressing plate (73), the gear (77) is respectively engaged with teeth on the outer periphery of the first nut (75) and teeth on the outer periphery of the second nut (76), a first hand wheel (78) is mounted on the gear (77), and the first nut (75) and the second nut (76) are threaded in opposite directions.
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| CN202010170698.7A CN111270395A (en) | 2020-03-12 | 2020-03-12 | Water-absorbing breathable knitted fabric, preparation method thereof and double-sided weft circular knitting machine |
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| JP2008162098A (en) * | 2006-12-27 | 2008-07-17 | Kyowa Technos:Kk | Laminated body including chitin-chitosan based material |
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