CN108950851B - Production method of creel warp knitting spacer mesh cloth - Google Patents
Production method of creel warp knitting spacer mesh cloth Download PDFInfo
- Publication number
- CN108950851B CN108950851B CN201810744432.1A CN201810744432A CN108950851B CN 108950851 B CN108950851 B CN 108950851B CN 201810744432 A CN201810744432 A CN 201810744432A CN 108950851 B CN108950851 B CN 108950851B
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- China
- Prior art keywords
- yarn
- guide bar
- wheat straw
- follows
- knitting
- Prior art date
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Classifications
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- D—TEXTILES; PAPER
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- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/10—Open-work fabrics
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/58—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products
- D01F6/62—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolycondensation products from polyesters
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/06—Patterned fabrics or articles
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
- D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
- D04B21/165—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads with yarns stitched through one or more layers or tows, e.g. stitch-bonded fabrics
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/10—Devices for supplying, feeding, or guiding threads to needles
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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]
-
- 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
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
- D10B2501/043—Footwear
Abstract
The application relates to a production method of a yarn frame type warp knitting interval mesh cloth, which comprises the steps of knitting guide bars GB1 and GB2 into a surface layer by looping front needle mattress yarns, knitting jacquard guide bars JB1.1 and JB1.2 into an intermediate layer by looping back yarns on a front needle bed and a back needle bed, and knitting guide bars GB4, GB5 and GB6 into a bottom layer by looping back yarns on the back needle bed. The mesh cloth has super perspective and stereoscopic impression, has excellent air permeability and unique style, and is a novel shoe material fabric.
Description
Technical Field
The application relates to the technical field of textile production, in particular to a production method of a creel warp knitting spacer mesh.
Background
The Chinese patent application number 201510759412.8 relates to a production process of warp knitting multicolor breathable scientific and technological mesh cloth, which comprises the following steps: (1) producing colorful yarns; (2) The design of the pattern technology of the warp knitting multicolor ventilation scientific and technological mesh cloth comprises the following steps: a. the upper layer of the warp knitting multicolor ventilation scientific and technological mesh cloth is knitted by controlling the guide bars GB1 to GB 3; b. the middle layer of the warp knitting multicolor ventilation scientific and technological mesh cloth is controlled by a guide bar GB4 to knit; c. the lower layer of the warp knitting multicolor ventilation scientific and technological mesh cloth is knitted by a guide bar GB5 and a guide bar GB 6; (3) arranging chain blocks and feeding the yarn-laying digital code; (4) weaving production; and (5) carrying out post-treatment on the mesh cloth. The warp knitting multicolor ventilation scientific net cloth manufactured by the production process has high pattern precision and good stability, the surface of the finished net cloth has rich multicolor effect, the net cloth is directly knitted and formed, the net cloth dyeing treatment is not needed, the finished net cloth has comfortable and soft hand feeling, three-dimensional feeling and better rebound resilience, and has good ventilation property, crease resistance, shape retention property and wear resistance.
The Chinese patent application No. 201510755382.3 relates to a production process of single-sided double-color five-comb jacquard mesh cloth, which comprises the following steps: (1) Design of a pattern process of single-sided double-color five-comb jacquard mesh cloth; (2) editing a flower shape; (3) weaving production; (4) dyeing and finishing and shaping; the exquisite single-sided double-color five-comb jacquard mesh cloth is manufactured by improving the production process. The single-sided double-color five-comb jacquard mesh manufactured by the production process has the advantages of high pattern precision, good stability, stable pattern weaving of the finished mesh, good double-color effect, comfortable and soft hand feeling of the manufactured single-sided double-color five-comb jacquard mesh, and good crease resistance, shape retention and wear resistance.
The Chinese patent application No. 201710486892.4 relates to the technical field of textile materials, in particular to a preparation method of a reinforced space mesh composite material, which comprises the following steps: (1) preparation of reinforcing sheet: dip coating treatment of the polyester fiber mesh cloth with paste; respectively scraping the upper surface and the lower surface of the space mesh cloth with space mesh cloth paste; (2) heating the space mesh composite; heating the reinforcing sheet; (3) And respectively attaching the two heated reinforcing sheets to the upper surface and the lower surface of the heated space mesh cloth composite material to obtain the reinforced space mesh cloth composite material. The invention has the beneficial effects that: in the preparation method of the reinforced space mesh fabric composite material, the reinforcing sheets are attached to the two sides, so that the strength of a product is improved, the product is not easy to break, the reinforcing sheets are obtained by dipping and coating paste on the polyester fiber mesh fabric, the polyester fiber mesh fabric and the paste are fully combined, the paste on the obtained reinforcing sheets is uniform, and the product has good air tightness and high strength.
The Chinese patent application No. 201710490835.3 relates to the wire-drawing mesh cloth technology, and is characterized by relating to a wire-drawing mesh cloth composite material and a preparation method thereof, comprising the following steps: step 1, preparing an outer layer embryo membrane and an inner layer embryo membrane; the outer layer embryo membrane and the inner layer embryo membrane are fused and attached to obtain a PVC embryo membrane; step 2, respectively coating a first layer of paste on two side surfaces of the plain-weave type wire drawing mesh cloth, and then coating a second layer of paste; heating and plasticizing the pasted wire drawing mesh cloth at 130-140 ℃ for 2-3 minutes; and 3, attaching the upper and lower PVC embryo films in a nearly molten state with the wire-drawing mesh cloth together to obtain the plain-weave wire-drawing mesh cloth composite material. The invention has the beneficial effects that: according to the method, the two sides of the wire-drawing mesh cloth are respectively coated with the coating paste and then are attached to the PVC blank film, so that the problem of air leakage and air tightness is solved, the outer layer of the PVC blank film is modified into the wire-drawing mesh cloth which is resistant to UV, good in weather-proof performance, good in elasticity and convenient to adhere with the glued wire-drawing mesh cloth.
The Chinese patent application number 201510755606.0 relates to a production process of a pattern-graded double-color three-layer mesh fabric, which comprises the following steps: (1) The design of the electronic transverse moving pattern process of the pattern-graded double-color three-layer mesh cloth comprises the following steps: a. the upper layer of the two-color three-layer mesh cloth with gradually changed patterns is knitted by controlling the guide bars GB1 to GB 4; b. the middle layer of the double-color three-layer mesh cloth with gradually changed patterns is knitted under the control of a guide bar GB 5; c. the lower layer of the double-color three-layer mesh cloth with gradually changed patterns is knitted by a guide bar GB6 and a guide bar GB 6; (2) recording the yarn-laying digital code; (3) weaving production; (4) dyeing and finishing and shaping. The pattern-graded bicolor three-layer mesh cloth manufactured by the manufacturing process has high pattern precision and good stability, the surface of the finished mesh cloth has graded pattern with gradually changed size, and the surface of the mesh cloth has good bicolor effect.
Chinese patent application number 201710356628.9 relates to a preparation method of a shading net cloth with antibacterial and anti-aging properties, the prepared shading net cloth is of a double-layer composite structure, an outer layer net cloth of an ultraviolet-resistant layer and an inner layer net cloth of an antibacterial layer are respectively synthesized, the two layers of net cloth are preheated and melted through temperature adjustment and change of a heating roller, and the shading net cloth is formed by laminating a rubber roller and an iron roller and cooling and shaping under the assistance of an adhesive. The light shielding mesh cloth with the double-layer composite structure is directly prepared from functional composite polymer fibers, no ultraviolet resistance agent or antibacterial agent is externally added, and the finished product has an excellent ultraviolet resistance function, strong antibacterial and mildew resistance, stable chemical performance and maximum guarantee of various tensile resistance, ageing resistance, corrosion resistance, radiation resistance and portability of the mesh cloth.
The Chinese patent application No. 2015155164. X relates to a production process of a face-tingling jacquard spacing fabric mesh, which comprises the following steps: (1) chemical fiber yarn production and manufacture; (2) The pattern process design of the jacquard space fabric mesh cloth with the face hemp color comprises the following steps: a. the upper layer of the jacquard space fabric mesh with the face fibrilia is woven by controlling the guide bars GB1 to GB 3; b. the middle layer of the jacquard space fabric mesh with the face fibrilia is woven under the control of a guide bar GB 4; c. the lower layer of the jacquard space fabric mesh with the face fibrilia is woven by controlling a guide bar GB5 and a guide bar GB 6; (3) weaving production; (4) dyeing and finishing and shaping; the jacquard space fabric mesh with the surface tingling color manufactured by the production process is not easy to cause pattern distortion or deformation, the pattern precision is high, the stability is good, and after the semi-gloss polyester yarns and the polyester CD yarns on the upper layer of the mesh are dyed, the surface of the finished mesh presents a bicolor surface tingling color effect, the dyeing fastness is good, and the overall dyeing effect is good.
The Chinese patent application number 201720095786.9 relates to light waterproof wear-resistant sandwich cloth material, which comprises a sandwich cloth material outer body, wherein a cloth wear-resistant layer is arranged on the upper surface of the sandwich cloth material outer body, a secondary grid layer is arranged below the cloth wear-resistant layer, a polypropylene fiber waterproof layer is arranged below the secondary grid layer, a PVC adhesive layer is arranged below the polypropylene fiber waterproof layer, an outer grid cloth is arranged below the PVC adhesive layer, and a main grid layer is arranged below the outer grid cloth and close to the middle position inside the sandwich cloth material outer body; the utility model has scientific and reasonable structure and safe and convenient use, the auxiliary grid layer is additionally arranged in the wear-resistant layer of the cloth, so that the wear-resistant layer on the outer surface is more wear-resistant under the action of the grid layer, the polypropylene waterproof layer is arranged below the wear-resistant layer, the sandwich cloth has waterproof effect, and the PVC adhesive layer is coated outside the cloth, so that the sandwich cloth has better waterproof effect, acid and alkali resistance and high temperature resistance.
Chinese patent application number 201621411733.5 relates to a compound screen cloth preparation equipment of anti ultraviolet, which comprises a housin, casing top middle part fixedly connected with pouring pipe, pouring pipe welding are on the casing, pouring pipe below fixedly connected with elastic rubber board, the first motor of pouring pipe both sides symmetry fixedly connected with, first motor output fixedly connected with runner, the fixed pivot of runner outside fixedly connected with, fixed pivot outside cover are equipped with the swivel, swivel below fixedly connected with connecting rod, connecting rod lower extreme fixedly connected with removes the pivot, remove pivot below fixedly connected with lifter. Compared with the prior art, the utility model has the beneficial effects that: the utility model has simple structure and convenient operation, the woven mesh cloth is put into the device through the material pouring pipe, then the liquid containing the ultraviolet absorbent is put into the device, and the mesh cloth is repeatedly soaked, pressed and heated and dried, so that the mesh cloth is rich in more ultraviolet-proof substances, and the ultraviolet-proof effect is better.
Chinese patent application number 201710016771.3 relates to a method for manufacturing a bicolor color-changing three-layer mesh fabric, which comprises the steps of threading, braiding, dyeing and finishing, wherein through a specific threading and yarn pad movement mode, raised wavy raised strips or protruding blocks which are arranged in a staggered manner can be formed on the surface layer of the three-layer mesh fabric, so that the three-layer mesh fabric has a vivid third dimension, meanwhile, the color of the middle layer can be exposed through grooves between the raised strips or grooves between the protruding blocks, and due to the blocking effect of the raised strips or the protruding blocks, the color of the three-layer mesh fabric can be changed along with the different visual angles of observers, the color-changing effect is realized, the air permeability and the weight of the mesh fabric are not influenced, the air permeability is good, and the cost and the weight are relatively low.
Chinese patent application number 201621094328.5 relates to a screen cloth of mosquito-proof worm stings, is in including basic gauze and setting the mosquito-proof worm gauze of basic gauze upper surface, the shape of mosquito-proof worm gauze is the wave, the mosquito-proof worm gauze has the crisscross crest and the trough that set up of a plurality of intervals, the trough of mosquito-proof worm gauze and basic gauze pass through the silk thread and make up or fix through the hot glue bonding, distance H between crest and the basic gauze of mosquito-proof worm gauze is not less than 6mm, distance L between two adjacent crests of mosquito-proof worm gauze is 8mm ~ 12mm. The mosquito-repellent incense has the advantages of simple structure, convenient use, good ventilation performance, better effect of preventing mosquito bites, lighter weight, no toxicity, no smell, long-term use, simple manufacturing process, low cost and convenient popularization and application.
Chinese patent application number 201710016762.4 relates to a three-dimensional intercommunication ventilative three-layer screen cloth, including surface course, bottom and be used for connecting the surface course with the middle level of bottom, the equipartition has a plurality of meshes on the surface course, and each the position department of mesh has the blade respectively, the one end of blade is woven and is connected on the lateral wall of mesh. The invention also provides a manufacturing method of the three-dimensional intercommunicating breathable three-layer mesh fabric, which comprises the following steps of threading, braiding, dyeing and finishing. Because the positions of the meshes are provided with the blades, one ends of the blades are connected to the side walls of the meshes in a weaving way, when the air conditioner is used, the blades can swing back and forth along with the air flowing at the positions of the meshes, so that the air flowing is promoted, and the air exchanging effect is relatively good; meanwhile, the blades can change the air flowing direction, so that the cold air and the hot air can perform sufficient heat exchange, and hot air is not easy to flow backwards.
Chinese patent application number 201710730117.9 relates to a single-layer warp knitted fabric weaving method with visual three-dimensional effect, which comprises the following steps: (1) The jacquard warp knitting machine with a single needle bed is utilized, two guide bars, namely a ground guide bar GB3 and a jacquard guide bar, are adopted, a cloth cover is formed by knitting the ground guide bar GB3, (2) when warp knitting design software is used for design, patterns with visual three-dimensional effects are drawn on the design software; (3) The warp knitting jacquard machine is used for forming different visual areas of the cloth cover by using different materials on different tissues by utilizing different thickness effects of the cloth cover formed by warp knitting tissues. The invention can display patterns with high-low level visual three-dimensional effect in the single-layer warp knitting cloth sample, further upgrade the visual three-dimensional effect into visual error effect which can reflect different patterns through different visual angles, and provide conditions for the novelty and fashion of the single-layer warp knitting cloth sample.
Chinese patent application No. 201610837558.4 relates to a preparation method of hydrophilic mesh or fabric for oil-water separation, which comprises the steps of firstly, carrying out alkali-assisted roughening treatment on the pretreated mesh or fabric; the PVA hydrogel treated by the hydrophilic functional nano material is subjected to functional modification on the coarsened mesh or fabric by dipping, padding, spraying or other mixing modes; after drying treatment, the crosslinked PVA hydrogel is solidified and coated on the mesh wire framework and the surface of the mesh cloth or fabric to form hydrophilic mesh cloth or fabric with hydrophilic and oleophobic properties and capable of being used for oil-water separation. The hydrophilic-oleophobic oil-water separation net prepared by the invention can rapidly realize the separation of oil-water mixtures, is particularly suitable for a large amount of oil-water mixtures with light oil as a main oil source and low oil content, and realizes the rapid separation of oil and water.
Chinese patent application No. 201710090115.8 relates to a knitted shoe body, a method of manufacturing the same, and a knitted shoe, wherein the knitted shoe body is a knitted shoe body formed by integrally knitting, and the knitted shoe body includes a shoe body heel portion, a shoe body head portion, a shoe body face portion, and a shoe body bottom portion, and at least one of the knitted yarns of the shoe body heel portion, the shoe body head portion, and the shoe body bottom portion includes a thermal fuse. The braiding shoes are integrally braided by braiding yarns, the braiding yarns are soft and elastic, so that the comfort level of the braiding shoes is high, and meanwhile, thermal fuses are added into at least one part of the heel part, the head part and the bottom part of the braiding shoes, so that the braiding shoes are firm while the comfort level of the braiding shoes is kept. The knitted shoe body is integrally knitted and formed, and compared with the process of cutting and sewing after knitting the sheet-shaped vamp, the integrally formed knitted shoe body has the advantages of simple manufacturing process and high efficiency, and simultaneously avoids the condition that the sewing position is easy to open.
Chinese patent application No. 201710019995.X relates to a sandwich mesh cloth with toper mesh, including surface course, bottom and be used for connecting the surface course with the middle level of bottom, the equipartition has first mesh on the surface course, evenly distributed on the bottom have a plurality of with the coaxial second mesh of arranging of first mesh, the area of the cross section of first mesh is greater than the area of the cross section of second mesh, the middle level is in mutual correspondence first mesh with have the cavity between the second mesh. The invention also provides a manufacturing method of the sandwich mesh fabric. The sandwich mesh cloth can form the bell mouth between corresponding first mesh and second mesh, and the outside air of shoes flows into this bell mouth from the second mesh after the volume increase during the use, can spread to shoes in rapidly, and the inside hot air of shoes then flows into this bell mouth from first mesh under the impulsive force drive that shoes motion produced, when flowing through the second mesh, air compressed release heat energy, and gas exchange effect and heat exchange effect are relatively better.
The Chinese patent application No. 201710106942.1 relates to a fabric, which comprises warp yarns and weft yarns, wherein the warp yarns and the weft yarns are woven into the fabric in a warp-weft knitting mode, the warp yarns comprise reinforcing yarns and PP yarns, the weft yarns also comprise reinforcing yarns and PP yarns, or the weft yarns are reinforcing yarns; the reinforced yarn is of a double-layer structure, the inner layer of the reinforced yarn is polyester yarn, and the outer layer of the polyester yarn comprises a PVC outer layer. The reinforced yarn has a double-layer mechanism, and the polyester yarn of the inner layer has higher strength, so that the fabric can be ensured to have equivalent strength; the fabric also contains PP yarns, so that the fabric has soft hand feel. The technical scheme of the invention not only gives consideration to the hand feeling texture, but also increases the strength of the fabric.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a production method of a creel warp knitting spacer mesh.
The aim of the invention is realized by the following technical scheme:
a production method of a yarn frame type warp knitting spacer mesh fabric comprises the following specific steps: the guide bars GB1 and GB2 are looped on the front needle mattress yarn, the jacquard guide bar JB1.1 and the jacquard guide bar JB1.2 can be looped on the front needle bed and the back needle bed by yarn padding; guide bar GB4, guide bar GB5 and guide bar GB6 are arranged on the back needle bed in a yarn-laying mode; seven guide bars are matched and knitted into the warp knitting fabric. Guide bars GB1 and GB2 are looped and woven into a surface layer on the front needle mattress yarn, jacquard guide bars JB1.1 and Jacquard guide bar JB1.2 are looped and woven into an intermediate layer on the front needle bed and the rear needle bed, guide bar GB4 and GB5 are looped and woven into a bottom layer on the rear needle bed. The fabric has super perspective and stereoscopic impression, has excellent air permeability and unique style, and is a novel shoe material fabric.
The yarn-laying structure and the yarn-threading mode of each guide bar are as follows:
(1) The yarn-laying structure of the guide bar GB1 is as follows:
1-0-1-1/1-2-1-1/1-0-1-1/2-3-2-2/2-1-1-1/2-3-2-2//；
the yarn threading mode of the guide bar GB1 is as follows: 1, putting through 1;
(2) The yarn-laying structure of the guide bar GB2 is as follows:
2-3-2-2/2-1-1-1/2-3-2-2/1-0-1-1/1-2-1-1/1-0-1-1//；
the yarn threading mode of the guide bar GB2 is as follows: 1, putting through 1;
(3) The jacquard guide bar JB1.1 is arranged as follows: 1-0-1-0/1-2-1-2//;
the jacquard bar JB1.2 is arranged with the following yarn-laying structure: 1-0-1-0/1-2-1-2//;
the jacquard guide bars JB1.1 and JB1.2 are arranged in the following way: full wear;
(4) The yarn-laying structure of the guide bar GB4 is as follows: 1-1-1-0/0-0-0-1//;
the yarn threading mode of the guide bar GB4 is as follows: full wear;
(5) The yarn-laying structure of the guide bar GB5 is as follows: 2-2-3-2/1-1-0-1//;
the yarn threading mode of the guide bar GB5 is as follows: full wear;
(6) The yarn-laying structure of the guide bar GB6 is as follows: 1-1-0-1/1-1-2-1//;
the yarn threading mode of the guide bar GB6 is as follows: full wear;
the knitting raw materials used by each guide bar are as follows:
the knitting raw materials used by the guide bar GB1 are as follows: 200D terylene low stretch yarn;
the knitting raw materials used by the guide bar GB2 are as follows: 200D terylene low stretch yarn;
the knitting raw materials used by the jacquard guide bar JB1.1 and the jacquard guide bar JB1.2 are as follows: 150D terylene low stretch yarn;
the knitting raw materials used by the guide bar GB4 are as follows: 0.10mm terylene folding-resistant monofilament;
the knitting raw materials used by the guide bar GB5 are as follows: 0.10mm terylene folding-resistant monofilament;
the knitting raw materials used by the guide bar GB6 are as follows: 0.10mm terylene folding-resistant monofilament.
The raw materials of the terylene folding-resistant monofilament are multifunctional PET master batch and large bright polyester chips; the mass fraction of the multifunctional PET master batch in the dacron folding-resistant monofilament is 5-15%.
The preparation method of the dacron folding-resistant monofilament comprises the following steps:
1. pretreatment of wheat straw cores:
taking wheat straw, peeling to obtain a wheat straw core layer material, pickling a wheat straw core, then performing alkaline washing pretreatment, and cleaning with clear water for three times to obtain a pretreated wheat straw core pretreatment object;
the acid washing process of the wheat straw core is that the acid mixed solution is subjected to strong oxidation, and the wheat straw core is soaked for 3 to 6 hours at the temperature of 80 to 90 ℃;
the strong-oxidation acidic mixed solution is a mixed solution of nitric acid and hydrofluoric acid, wherein the mass fraction of the nitric acid solution is 10-15%, and the mass fraction of the hydrofluoric acid is 5-10%;
the alkaline process of the wheat straw core is to soak the wheat straw core treated by the acidification process with alkaline alcohol solution for 3-6 hours at 80-90 ℃;
the alkaline alcohol solution is a mixed solution of isopropanol of sodium hydroxide, wherein the molar ratio of the sodium hydroxide to the isopropanol is 1:10-1:15;
the acidic solution with strong oxidizing property is adopted for acidification and activation treatment, so that the cellulose can be fully acidified and activated, and meanwhile, the metal ions can be completely immersed out of the cellulose, and the impurity removal of the metal ions is ensured;
Wheat straw, which is a biomass cellulosic material, has a high fiber content itself and is currently used in large amounts for cellulose or papermaking pulp; the core material in the wheat straw is high-content cellulose and rich in carbon element, and is a thin-layer material, and the thickness between each layer is in the micron level, so that the graphite layer can be well carbonized and peeled after the later carbonization; meanwhile, the cellulose material in the wheat straw is subjected to acidification treatment to fully activate the surface of the cellulose material, remove other heavy metal ions in cellulose and remove impurities in alkaline solution, so that the reduction of the metal ion content in the wheat straw is ensured, and the problems of catalytic deactivation and the like in the carbonization and graphitization processes in the later period are avoided.
2. Load of wheat straw core
Taking the wheat straw core pretreatment material obtained after the treatment in the step one as a raw material, taking a mixed solution of phytic acid and zinc hyaluronate as a functional load solution, and carrying out load reaction under strong stirring, wherein the temperature of the load reaction is 85-90 ℃, and the functional load reaction time is 24-36 h; after the functional load, adopting ultra-high speed centrifugation to obtain a centrifugal precipitate, and carrying out vacuum drying treatment on the centrifugal precipitate at 80 ℃ to obtain a load of the wheat straw core;
The mass fraction of the phytic acid in the functional load liquid is 2-5%;
the mass fraction of the zinc phytate in the functional load liquid is 1-3%;
the phytic acid is an organic acid, has a six-membered ring structure, and has a good acidification and catalytic carbonization effect on lignocellulose, and is also a main catalyst for graphene preparation at present; through the structure of cooperation zinc phytate, utilize the adsorption of activated reed straw core, through the attaching effect of phytic acid and matter zinc after the absorption, thereby do benefit to the catalytic carbonization and the graphitization effect of reed straw core, and zinc ion has excellent antibacterial effect after the carbonization effect of high temperature, thereby both can catalyze the carbonization and obtain graphene, still can load the nano zinc material that obtains antibacterial effect on graphene surface simultaneously, thereby further strengthen the antibacterial performance of material, utilize graphene self excellent electric conductivity, thereby reach the cell wall of stimulus bacterium and fungi, be unfavorable for the growth of microorganism, simultaneously utilize the antibacterial and the antibacterial effect of nano zinc material, thereby the antibacterial performance of reinforcing material. Thereby achieving the double antibacterial function.
3. Charring of wheat straw core
Taking the load of the wheat straw core prepared in the second step as a raw material, and carrying out oxidation treatment for 10-20 h in an oxidation atmosphere with the oxidation temperature of 185-200 ℃ and the oxygen volume fraction of 10-15% and the ozone volume fraction of 1-1.5%; then carbonizing treatment is carried out in helium atmosphere at 500-600 ℃ to obtain carbonized matters of the wheat straw core;
through the heating of multiple steps, the oxidation effect of ozone is utilized, and the oxidation performance of the functionalized load wheat straw core is improved, so that the carbonization process in the inert gas in the later stage is facilitated, and the pre-oxidation carbonization efficiency is improved.
4. Graphitization of wheat straw core
Taking the carbonized material of the wheat straw core prepared in the third step and potassium nitrate as raw materials, uniformly mixing the raw materials by stirring, then continuously conveying mixed gas of materials and low-oxygen nitrogen, carrying out high-temperature explosion graphitization reaction on the pre-oxidized carbonized material of the functionalized load wheat straw core in a low-oxygen atmosphere, collecting gas at a mixed gas outlet of the high-temperature explosion graphitization reaction, and cooling and collecting the graphitized material of the wheat straw core;
the mass ratio of the carbide to the potassium nitrate of the wheat straw core is 1:0.04-1:0.08;
The temperature in the high-temperature explosion graphitization process is 1000-2000 ℃, wherein the volume fraction of oxygen in the low-oxygen nitrogen atmosphere is 1-5%;
the volume ratio of the materials to the mixed gas in the continuous conveying process is 1:700-1:1100;
the conveying flow rate of the mixed gas is 11-21L/min.
The potassium nitrate has a certain combustion-supporting effect, so that the potassium nitrate can play a role in an explosion synergist in a certain range, the pre-oxidized carbonized material of the functional load wheat straw core can realize the effect of stripping graphene by the instant explosion effect of the potassium nitrate and the instant action force of explosion, the layer number control of the graphene is realized by the adjustment effect of the concentration of the potassium nitrate and the concentration of the oxygen, and after the combustion and explosion of the potassium nitrate, the generated gas and the generated product are collected in a later period, so that the efficient and continuous production operation of the graphene is realized, and the efficiency is high and the cost is low.
5. Hydroxylation of wheat straw core:
dispersing the graphitized compound of the wheat straw core prepared in the step four in 15% of hydrogen peroxide by mass fraction for activation treatment, then carrying out high-temperature high-pressure water bath reaction, and then filtering and drying to obtain the hydroxylated compound of the wheat straw core;
The mass ratio of the graphitized compound of the wheat straw core to the hydrogen peroxide is 1:8-1:10.
The high-temperature high-pressure water bath reaction temperature is 120-130 ℃, the reaction pressure is 0.5-1.5 MPa, and the reaction time is 1.4-2.5 h.
The specific process of filtration and drying is as follows: vacuum drying at 60deg.C for 24 hr
6. Preparation of modified silicon boride:
mixing nano silicon boride with core-shell mesoporous aluminosilicate, coarsely grinding, and calcining to obtain a nano compound; then secondary grinding is carried out on the nano composite, and oxidation acidification is carried out, so as to obtain modified silicon boride;
mixing nano silicon boride with core-shell mesoporous aluminosilicate, coarsely grinding, and calcining to obtain a composite nano composite refining process: mixing nano silicon boride with core-shell type mesoporous aluminosilicate, wherein the mass ratio of the nano silicon boride to the core-shell type mesoporous aluminosilicate is 1:5-1:10, performing coarse grinding in a three-roller grinder, controlling the average grain diameter to be 20-30 mu m after grinding, performing high-speed grinding in a ball mill to prepare pre-calcined composite powder, controlling the average grain diameter of the pre-calcined composite powder to be 5-10 mu m, repeatedly calcining the pre-calcined composite powder for 2-3 times at the high temperature of 1200 ℃, calcining for 2-5 h, performing 300-mesh screen filtering after natural cooling, and removing impurities with the grain diameter larger than 300 meshes to prepare the nano composite; the core-shell mesoporous aluminosilicate can also be replaced by other porous materials, such as graphene and the like.
Then secondary grinding is carried out on the nano composite, and oxidation acidification is carried out, so that the specific refinement process of the modified silicon boride is as follows: then the nano composite is crushed for the second time by a dry powder device NNM6 high-efficiency nano sand mill, the average grain diameter is controlled to be 80-95 nm, then the mixed solution of sulfuric acid and hydrogen peroxide is used for acidizing and activating, the volume ratio of the concentrated sulfuric acid to the hydrogen peroxide is 7:3, the mass fraction of the concentrated sulfuric acid is 98%, the mass fraction of the hydrogen peroxide is 30%, the acidizing and activating time is controlled to be 30-90 min, the acidizing and activating time is controlled to be 75-95 ℃, the high-speed centrifugal treatment is carried out for 30-45 min after the acidizing and activating treatment, and then the modified silicon boride is prepared after the drying is carried out for 2-3 hours at 70-80 ℃.
Coarse grinding is performed firstly, then nano fine grinding is performed, on the basis of guaranteeing the grinding efficiency, the influence of impurities with larger particle sizes on the nano fine grinding is reduced, the uniformity of the ground powder is improved, the grinding time is reduced, and the uniformity of the nano composite powder in the acidification oxidation process is guaranteed. By utilizing the porous characteristic of the core-shell mesoporous aluminosilicate, the nano silicon boride is easy to adsorb in the pores of the core-shell mesoporous aluminosilicate, and the subsequent compatibility with PET particles is mainly considered by modifying the silicon boride, so that the compatibility agent with the PET particles is improved, and the spinnability of spinning is not affected under the condition of improving the strength.
7. Preparation of multifunctional PET master batch:
carrying out hot-melt extrusion granulation on the hydroxylation of the wheat straw core prepared in the step five, the modified silicon boride prepared in the step six and PET particles to obtain multifunctional PET master batch; the mass fraction of the hydroxylation of the wheat straw core in the multifunctional PET master batch is 10-15%; the mass fraction of the modified silicon boride in the multifunctional PET master batch is 1-5%;
8. preparing the dacron folding-resistant monofilament:
carrying out melt spinning on the multifunctional PET master batch and the large bright polyester chips to obtain polyester folding-resistant monofilaments; specifically, a UDY-DT process is adopted; the cooling mode adopts air blowing cooling or natural cooling to obtain polyester unoriented yarn, and the polyester unoriented yarn is stretched to obtain the polyester folding-resistant monofilament, wherein the stretching multiplying power of the stretching process is 2-3 times;
the polyester monofilament spinning process comprises the following steps:
the spinning temperature is 280-320 ℃;
the temperature of the cooling air is 15-25 ℃, the wind speed is 0.5-5 m/s, or the cooling air is naturally cooled;
the spinning speed is 1000-1200 m/min.
A creel for warp-knitted spacer fabric production is cuboid, and has a length of 3.0 m-7 m, a width of 3-6 m and a height of 2-3 m. Preferably, it is: the length is 5m, the width is 4.8 m, and the height is 2.4 m.
A creel for warp knitting spacer fabric production comprises a transverse bracket and a vertical bracket which are fixed by bolts; a bobbin is arranged at the joint of the transverse bracket 4 and the vertical bracket 5, a yarn tube is arranged on the bobbin 3, yarn led out from the yarn tube enters the yarn dividing plate 2 through a tensiometer, the yarn coming out through the yarn dividing plate 2 is concentrated through the yarn collecting plate 1, and then enters a warp knitting machine for knitting to obtain the yarn frame type warp knitting spacer fabric.
The transverse brackets are horizontally arranged; will evenly divide the creel into equal parts in the horizontal direction
The vertical supports are vertically arranged; the creel will be equally divided in the vertical direction.
The number of the yarn dividing plates is 10-20, preferably 16.
The creel is made of white stainless steel.
The white stainless steel is provided with a hydrophobic functional coating, and the coating has the functions of water resistance, rust resistance and the like.
The hydrophobic functional coating comprises the following raw materials in percentage by mass: 3% of hydrophobic and oleophobic modifier, 23% of glycol, 6% of chitosan oligosaccharide, 1% of core-shell mesoporous aluminosilicate, 3% of graphene oxide composite material containing barium ions and 64% of alkylsilane.
The preparation of the hydrophobic and oleophobic modifier comprises the following steps: adding tetraethoxysilane into ethylene glycol to obtain tetraethoxysilane-ethylene glycol solution, regulating the pH of a system to 3.0-4.0 by adopting hydrochloric acid, performing a low-temperature hydrolysis reaction, and then performing a condensation reaction by taking tridecanfluoroheptanoic acid and octadecyltrimethoxysilane as modifiers at the temperature of 60-80 ℃ to prepare the hydrophobic and oleophobic modifier;
in isopropanol solution of the ethyl orthosilicate, the mass fraction of the ethyl orthosilicate is 45%;
the mass ratio of the tridecanfluoroheptanoic acid to the octadecyltrimethoxysilane is 1:1;
The mass ratio of the tridecanfluoroheptanoic acid to the tetraethoxysilane is 1:7-1:12;
in the low-temperature hydrolysis reaction process, the reaction temperature range is 8-25 ℃ and the reaction time range is 20-60 minutes;
in the condensation reaction process, the reaction time ranges from 1 to 3 hours.
The alkyl group of octadecyl trimethoxy silane and tridecyl fluoroheptanoic acid are used as a hydrophobic modifier, the acidic structure of a reaction system is regulated through the acidic action of tridecyl fluoroheptanoic acid, the hydrolysis catalysis effect is achieved, and meanwhile, the fluorine-containing structure is utilized to form a hydrophobic surface structure with three-dimensional multidimensional gradient with the octadecyl trimethoxy silane, so that the hydrophobic property modification of the surface is achieved, and the fluorine-containing material of tridecyl fluoroheptanoic acid has the double-hydrophobic effect on materials such as grease, namely the hydrophobic and oleophobic functions. Has one more oleophobic function than the silane compound alone.
The preparation method of the barium ion-containing graphene oxide composite material comprises the following steps:
carrying out ultrasonic dispersion on the aqueous solution of graphene oxide and the aqueous solution of barium nitrate to obtain a graphene oxide composite material containing barium ions; controlling the molar ratio of graphene oxide to barium nitrate to be 1:1-1:4;
the method utilizes the characteristic of small size of the graphene to enable the graphene to be filled into micro holes and defects of the coating, so that the small molecule corrosive medium is prevented and delayed from being immersed into the metal matrix to a certain extent, the physical isolation effect of the coating is enhanced, and the corrosion resistance of the coating is enhanced; meanwhile, the graphene is of a layered structure and is of an extremely thin lamellar structure, the graphene can be overlapped in the coating layer by layer to form a compact physical isolation layer, and a small-molecule corrosion medium hardly passes through the compact physical isolation layer, so that the anti-corrosion coating containing the graphene has extremely strong physical isolation effect. The application has the other improvement that the hydroxyl, carboxyl and epoxy groups carried by the graphene are combined with uniformly dispersed barium ions in the solution, the graphene oxide and the barium ions are subjected to complexation reaction to obtain a modifier, and the barium ions are used for improving the wear resistance of the material and are coated on the surface of the metal, so that the metal can be protected from corrosion, and the service life of the final product is prolonged; the hydroxyl, carboxyl and epoxy groups contained in the graphene oxide disclosed by the application are subjected to subsequent crosslinking reaction, and are not difficult to crosslink with other mediums like the graphene itself. The modification process of graphene is saved.
A preparation method of a hydrophobic functional coating comprises the following specific steps:
the preparation method comprises the steps of reacting a hydrophobic and oleophobic modifier, ethylene glycol, chitosan oligosaccharide, core-shell mesoporous aluminosilicate, a barium ion-containing graphene oxide composite material and alkylsilane for 10-20 hours to obtain the environment-friendly functional coating.
The alkylsilane is methyltrimethoxysilane and n-hexyltrimethoxysilane, and the mass ratio of the methyltrimethoxysilane to the n-hexyltrimethoxysilane is 1:1.
The chitosan oligosaccharide contains a large amount of positive charge cation alkaline amino oligosaccharide, can be crosslinked with the graphene oxide composite material containing barium ions, can be crosslinked with the hydrophobic oleophobic modifier, and can be crosslinked with alkylsilane, so that the chitosan oligosaccharide is easily dissolved in water and alcohol solution, and is a small molecular oligosaccharide with amino groups, which is degraded by chitosan from shrimp and crab shells, and is a sugar chain with the polymerization degree of 2-20, and has the characteristics of pure nature, no radiation, no pollution, no addition and the like. The modified polyurethane is added into the paint to serve as a cross-linking agent, so that the modified polyurethane is a very ideal material; has the functions of health and environmental protection.
Because the core-shell type mesoporous aluminosilicate is of a microsphere structure, the microsphere has a superparamagnetic inner core with regular spherical morphology and compact silicon dioxide protection, a single-layer ordered mesoporous aluminosilicate shell with high openness and regularly arranged pore channels, and the pore wall has high-density acidic active sites and large pore diameter, so that the core-shell type mesoporous aluminosilicate is easy to react with groups in the graphene oxide composite material, the hydrophobic oleophobic modifier and the chitosan oligosaccharide, is a silicate material, is also easy to crosslink with alkylsilane, and has good compatibility. In addition, the core-shell type mesoporous aluminosilicate forms an isolation layer on the metal surface due to the micropore structure, thereby isolating external greasy dirt and other materials and having the functions of corrosion prevention and environmental protection.
Core-shell mesoporous aluminosilicate: (1) Dispersing ferroferric oxide into ethanol by a stoner method, and then adding the ethanol into TEOS and ammonia water to prepare a ferroferric oxide@silicon dioxide composite material; taking an amphoteric block copolymer polystyrene-b-poly 4-vinylpyridine (Ps-b-P4 VP) as a guiding agent, adding aluminum hydroxide and TEOS to react to prepare ferroferric oxide@silicon dioxide-Ps-b-P4 VP/aluminum hydroxide/silicon dioxide; finally, calcining to remove the amphiphilic block copolymer Ps-b-P4VP to obtain the core-shell mesoporous aluminosilicate.
Compared with the prior art, the application has the following positive effects:
the guide bars GB1, the guide bars GB2 and the jacquard guide bars JB1.1 and JB1.2 are connected at the bottom of the surface to form a three-dimensional pattern by looping and forming meshes on the surface layer, and various patterns can be formed by matching with the flexibility of the jacquard, and the guide bar GB4 and the guide bar GB5 use transparent monofilaments to reflect the three-dimensional patterns of the jacquard pattern on the middle layer and the ventilation property of the meshes, so that the shoe is quite suitable for being used as a shoe material.
Drawings
FIG. 1 is a schematic view of the creel structure of the present application;
FIG. 2 is a Raman spectrum of graphitized matter of a wheat straw core;
FIG. 3 is a scanning electron microscope photograph of graphitized matter of the wheat straw core;
FIG. 4 is a transmission electron micrograph of graphitized matter of the wheat straw core;
the marks in the drawings are: 1 yarn collecting plate, 2 yarn dividing plate, 3 bobbins, 4 transverse brackets and 5 vertical brackets.
Detailed Description
The following provides a specific embodiment of a creel for warp knit spacer fabric production according to the present invention.
Example 1
A production method of a yarn frame type warp knitting spacer mesh fabric comprises the following specific steps: the guide bars GB1 and GB2 are looped on the front needle mattress yarn, the jacquard guide bar JB1.1 and the jacquard guide bar JB1.2 can be looped on the front needle bed and the back needle bed by yarn padding; guide bar GB4, guide bar GB5 and guide bar GB6 are arranged on the back needle bed in a yarn-laying mode; seven guide bars are matched and knitted into the warp knitting fabric. Guide bars GB1 and GB2 are looped and woven into a surface layer on the front needle mattress yarn, jacquard guide bars JB1.1 and Jacquard guide bar JB1.2 are looped and woven into an intermediate layer on the front needle bed and the rear needle bed, guide bar GB4 and GB5 are looped and woven into a bottom layer on the rear needle bed.
The yarn-laying structure and the yarn-threading mode of each guide bar are as follows:
(1) The yarn-laying structure of the guide bar GB1 is as follows:
1-0-1-1/1-2-1-1/1-0-1-1/2-3-2-2/2-1-1-1/2-3-2-2//；
the yarn threading mode of the guide bar GB1 is as follows: 1, putting through 1;
(2) The yarn-laying structure of the guide bar GB2 is as follows:
2-3-2-2/2-1-1-1/2-3-2-2/1-0-1-1/1-2-1-1/1-0-1-1//；
The yarn threading mode of the guide bar GB2 is as follows: 1, putting through 1;
(3) The jacquard guide bar JB1.1 is arranged as follows: 1-0-1-0/1-2-1-2//;
the jacquard bar JB1.2 is arranged with the following yarn-laying structure: 1-0-1-0/1-2-1-2//;
the jacquard guide bars JB1.1 and JB1.2 are arranged in the following way: full wear;
(4) The yarn-laying structure of the guide bar GB4 is as follows: 1-1-1-0/0-0-0-1//;
the yarn threading mode of the guide bar GB4 is as follows: full wear;
(5) The yarn-laying structure of the guide bar GB5 is as follows: 2-2-3-2/1-1-0-1//;
the yarn threading mode of the guide bar GB5 is as follows: full wear;
(6) The yarn-laying structure of the guide bar GB6 is as follows: 1-1-0-1/1-1-2-1//;
the yarn threading mode of the guide bar GB6 is as follows: full wear;
the knitting raw materials used by each guide bar are as follows:
the knitting raw materials used by the guide bar GB1 are as follows: 200D terylene low stretch yarn;
the knitting raw materials used by the guide bar GB2 are as follows: 200D terylene low stretch yarn;
the knitting raw materials used by the jacquard guide bar JB1.1 and the jacquard guide bar JB1.2 are as follows: 150D terylene low stretch yarn;
the knitting raw materials used by the guide bar GB4 are as follows: 0.10mm terylene folding-resistant monofilament;
the knitting raw materials used by the guide bar GB5 are as follows: 0.10mm terylene folding-resistant monofilament;
the knitting raw materials used by the guide bar GB6 are as follows: 0.10mm terylene folding-resistant monofilament.
The raw materials of the terylene folding-resistant monofilament are multifunctional PET master batch and large bright polyester chips; the mass fraction of the multifunctional PET master batch in the dacron folding-resistant monofilament is 5-15%.
The preparation method of the dacron folding-resistant monofilament comprises the following steps:
1. pretreatment of wheat straw cores:
taking wheat straw, peeling to obtain a wheat straw core layer material, pickling a wheat straw core, then performing alkaline washing pretreatment, and cleaning with clear water for three times to obtain a pretreated wheat straw core pretreatment object;
the acid washing process of the wheat straw core is that the acid mixed solution is subjected to strong oxidation, and the wheat straw core is soaked for 3 to 6 hours at the temperature of 80 to 90 ℃;
the strong-oxidation acidic mixed solution is a mixed solution of nitric acid and hydrofluoric acid, wherein the mass fraction of the nitric acid solution is 10-15%, and the mass fraction of the hydrofluoric acid is 5-10%;
the alkaline process of the wheat straw core is to soak the wheat straw core treated by the acidification process with alkaline alcohol solution for 3-6 hours at 80-90 ℃;
the alkaline alcohol solution is a mixed solution of isopropanol of sodium hydroxide, wherein the molar ratio of the sodium hydroxide to the isopropanol is 1:10;
2. load of wheat straw core
Taking the wheat straw core pretreatment material obtained after the treatment in the step one as a raw material, taking a mixed solution of phytic acid and zinc hyaluronate as a functional load solution, and carrying out load reaction under strong stirring, wherein the temperature of the load reaction is 85-90 ℃, and the functional load reaction time is 24-36 h; after the functional load, adopting ultra-high speed centrifugation to obtain a centrifugal precipitate, and carrying out vacuum drying treatment on the centrifugal precipitate at 80 ℃ to obtain a load of the wheat straw core;
The mass fraction of the phytic acid in the functional load liquid is 2%;
the mass fraction of the zinc phytate in the functional load liquid is 1%;
3. charring of wheat straw core
Taking the load of the wheat straw core prepared in the second step as a raw material, and carrying out oxidation treatment for 10-20 h in an oxidation atmosphere with the oxidation temperature of 185-200 ℃ and the oxygen volume fraction of 10-15% and the ozone volume fraction of 1-1.5%; then carbonizing treatment is carried out in helium atmosphere at 500-600 ℃ to obtain carbonized matters of the wheat straw core;
through the heating of multiple steps, the oxidation effect of ozone is utilized, and the oxidation performance of the functionalized load wheat straw core is improved, so that the carbonization process in the inert gas in the later stage is facilitated, and the pre-oxidation carbonization efficiency is improved.
4. Graphitization of wheat straw core
Taking the carbonized material of the wheat straw core prepared in the third step and potassium nitrate as raw materials, uniformly mixing the raw materials by stirring, then continuously conveying mixed gas of materials and low-oxygen nitrogen, carrying out high-temperature explosion graphitization reaction on the pre-oxidized carbonized material of the functionalized load wheat straw core in a low-oxygen atmosphere, collecting gas at a mixed gas outlet of the high-temperature explosion graphitization reaction, and cooling and collecting the graphitized material of the wheat straw core;
Fig. 2 is a raman spectrum of a graphitized substance of a wheat straw core, a characteristic peak of graphitization degree corresponds to 1595cm < -1 > in a spectrum, a disordered carbon layer structure in graphene corresponds to 1350cm < -1 > in a peak intensity ratio of 16.3, so that the graphitization degree of the prepared material is high, and meanwhile, a 2D peak specific to the graphene material can be obviously seen in the spectrum, and the 2D peak is high, so that the prepared biomass graphene has good quality. Fig. 3 and fig. 4 correspond to a scanning electron microscope photograph of a graphitized material of the wheat straw core and a transmission electron microscope photograph of a graphitized material of the wheat straw core, respectively, the graphitized material of the wheat straw core is in a lamellar structure, and in the electron microscope photograph, lamellar layers of graphene can be clearly distinguished, and the graphitized material of the wheat straw core contains loaded functional particulate materials.
The mass ratio of the charred matter of the wheat straw core to the potassium nitrate is 1:0.04;
the temperature in the high-temperature explosion graphitization process is 1000-2000 ℃, wherein the volume fraction of oxygen in the low-oxygen nitrogen atmosphere is 1-5%;
the volume ratio of the materials to the mixed gas in the continuous conveying process is 1:700;
the conveying flow rate of the mixed gas is 11-21L/min.
5. Hydroxylation of wheat straw core:
dispersing the graphitized compound of the wheat straw core prepared in the step four in 15% of hydrogen peroxide by mass fraction for activation treatment, then carrying out high-temperature high-pressure water bath reaction, and then filtering and drying to obtain the hydroxylated compound of the wheat straw core;
the mass ratio of graphitized matters of the wheat straw core to hydrogen peroxide is 1:8.
The high-temperature high-pressure water bath reaction temperature is 120-130 ℃, the reaction pressure is 0.5-1.5 MPa, and the reaction time is 1.4-2.5 h.
The specific process of filtration and drying is as follows: vacuum drying at 60deg.C for 24 hr
6. Preparation of modified silicon boride:
mixing nano silicon boride with core-shell mesoporous aluminosilicate, coarsely grinding, and calcining to obtain a nano compound; then secondary grinding is carried out on the nano composite, and oxidation acidification is carried out, so as to obtain modified silicon boride;
mixing nano silicon boride with core-shell mesoporous aluminosilicate, coarsely grinding, and calcining to obtain a composite nano composite refining process: mixing nano silicon boride with core-shell type mesoporous aluminosilicate, wherein the mass ratio of the nano silicon boride to the core-shell type mesoporous aluminosilicate is 1:5-1:10, performing coarse grinding in a three-roller grinder, controlling the average grain diameter to be 20-30 mu m after grinding, performing high-speed grinding in a ball mill to prepare pre-calcined composite powder, controlling the average grain diameter of the pre-calcined composite powder to be 5-10 mu m, repeatedly calcining the pre-calcined composite powder for 2-3 times at the high temperature of 1200 ℃, calcining for 2-5 h, performing 300-mesh screen filtering after natural cooling, and removing impurities with the grain diameter larger than 300 meshes to prepare the nano composite; the core-shell mesoporous aluminosilicate can also be replaced by other porous materials, such as graphene and the like.
Then secondary grinding is carried out on the nano composite, and oxidation acidification is carried out, so that the specific refinement process of the modified silicon boride is as follows: then the nano composite is crushed for the second time by a dry powder device NNM6 high-efficiency nano sand mill, the average grain diameter is controlled to be 80-95 nm, then the mixed solution of sulfuric acid and hydrogen peroxide is used for acidizing and activating, the volume ratio of the concentrated sulfuric acid to the hydrogen peroxide is 7:3, the mass fraction of the concentrated sulfuric acid is 98%, the mass fraction of the hydrogen peroxide is 30%, the acidizing and activating time is controlled to be 30-90 min, the acidizing and activating time is controlled to be 75-95 ℃, the high-speed centrifugal treatment is carried out for 30-45 min after the acidizing and activating treatment, and then the modified silicon boride is prepared after the drying is carried out for 2-3 hours at 70-80 ℃.
Coarse grinding is performed firstly, then nano fine grinding is performed, on the basis of guaranteeing the grinding efficiency, the influence of impurities with larger particle sizes on the nano fine grinding is reduced, the uniformity of the ground powder is improved, the grinding time is reduced, and the uniformity of the nano composite powder in the acidification oxidation process is guaranteed. By utilizing the porous characteristic of the core-shell mesoporous aluminosilicate, the nano silicon boride is easy to adsorb in the pores of the core-shell mesoporous aluminosilicate, and the subsequent compatibility with PET particles is mainly considered by modifying the silicon boride, so that the compatibility agent with the PET particles is improved, and the spinnability of spinning is not affected under the condition of improving the strength.
7. Preparation of multifunctional PET master batch:
carrying out hot-melt extrusion granulation on the hydroxylation of the wheat straw core prepared in the step five, the modified silicon boride prepared in the step six and PET particles to obtain multifunctional PET master batch; the mass fraction of the hydroxylation of the wheat straw core in the multifunctional PET master batch is 10%; the mass fraction of the modified silicon boride in the multifunctional PET master batch is 1%;
8. preparing the dacron folding-resistant monofilament:
carrying out melt spinning on the multifunctional PET master batch and the large bright polyester chips to obtain polyester folding-resistant monofilaments; specifically, a UDY-DT process is adopted; the cooling mode adopts air blowing cooling or natural cooling to obtain polyester unoriented yarn, and the polyester unoriented yarn is stretched to obtain the polyester folding-resistant monofilament, wherein the stretching multiplying power of the stretching process is 2-3 times;
the polyester monofilament spinning process comprises the following steps:
the spinning temperature is 280-320 ℃;
the temperature of the cooling air is 15-25 ℃, the wind speed is 0.5-5 m/s, or the cooling air is naturally cooled;
the spinning speed is 1000-1200 m/min.
The antibacterial effect of the dacron folding-resistant monofilament on staphylococcus aureus is more than 96.5%, and the antibacterial effect of the dacron folding-resistant monofilament on escherichia coli is more than 95%.
A creel for warp-knitted spacer fabric production is cuboid, and has a length of 3.0 m-7 m, a width of 3-6 m and a height of 2-3 m. Preferably, it is: the length is 5m, the width is 4.8 m, and the height is 2.4 m.
A creel for warp knitting spacer fabric production comprises a transverse bracket and a vertical bracket which are fixed by bolts; a bobbin is arranged at the joint of the transverse bracket 4 and the vertical bracket 5, a yarn tube is arranged on the bobbin 3, yarn led out from the yarn tube enters the yarn dividing plate 2 through a tensiometer, the yarn coming out through the yarn dividing plate 2 is concentrated through the yarn collecting plate 1, and then enters a warp knitting machine for knitting to obtain the yarn frame type warp knitting spacer fabric.
The transverse brackets are horizontally arranged; will evenly divide the creel into equal parts in the horizontal direction
The vertical supports are vertically arranged; the creel will be equally divided in the vertical direction.
The number of the yarn dividing plates is 10-20, preferably 16.
The creel is made of white stainless steel.
The white stainless steel is provided with a hydrophobic functional coating, and the coating has the functions of water resistance, rust resistance and the like.
The hydrophobic functional coating comprises the following raw materials in percentage by mass: 3% of hydrophobic and oleophobic modifier, 23% of glycol, 6% of chitosan oligosaccharide, 1% of core-shell mesoporous aluminosilicate, 3% of graphene oxide composite material containing barium ions and 64% of alkylsilane.
The preparation of the hydrophobic and oleophobic modifier comprises the following steps: adding tetraethoxysilane into ethylene glycol to obtain tetraethoxysilane-ethylene glycol solution, regulating the pH of a system to 3.0-4.0 by adopting hydrochloric acid, performing a low-temperature hydrolysis reaction, and then performing a condensation reaction by taking tridecanfluoroheptanoic acid and octadecyltrimethoxysilane as modifiers at the temperature of 60-80 ℃ to prepare the hydrophobic and oleophobic modifier;
In isopropanol solution of the ethyl orthosilicate, the mass fraction of the ethyl orthosilicate is 45%;
the mass ratio of the tridecanfluoroheptanoic acid to the octadecyltrimethoxysilane is 1:1;
the mass ratio of the tridecanfluoroheptanoic acid to the tetraethoxysilane is 1:7;
in the low-temperature hydrolysis reaction process, the reaction temperature range is 8-25 ℃ and the reaction time range is 20-60 minutes;
in the condensation reaction process, the reaction time ranges from 1 to 3 hours.
The alkyl group of octadecyl trimethoxy silane and tridecyl fluoroheptanoic acid are used as a hydrophobic modifier, the acidic structure of a reaction system is regulated through the acidic action of tridecyl fluoroheptanoic acid, the hydrolysis catalysis effect is achieved, and meanwhile, the fluorine-containing structure is utilized to form a hydrophobic surface structure with three-dimensional multidimensional gradient with the octadecyl trimethoxy silane, so that the hydrophobic property modification of the surface is achieved, and the fluorine-containing material of tridecyl fluoroheptanoic acid has the double-hydrophobic effect on materials such as grease, namely the hydrophobic and oleophobic functions. Has one more oleophobic function than the silane compound alone.
The preparation method of the barium ion-containing graphene oxide composite material comprises the following steps:
carrying out ultrasonic dispersion on the aqueous solution of graphene oxide and the aqueous solution of barium nitrate to obtain a graphene oxide composite material containing barium ions; controlling the molar ratio of graphene oxide to barium nitrate to be 1:1;
The method utilizes the characteristic of small size of the graphene to enable the graphene to be filled into micro holes and defects of the coating, so that the small molecule corrosive medium is prevented and delayed from being immersed into the metal matrix to a certain extent, the physical isolation effect of the coating is enhanced, and the corrosion resistance of the coating is enhanced; meanwhile, the graphene is of a layered structure and is of an extremely thin lamellar structure, the graphene can be overlapped in the coating layer by layer to form a compact physical isolation layer, and a small-molecule corrosion medium hardly passes through the compact physical isolation layer, so that the anti-corrosion coating containing the graphene has extremely strong physical isolation effect. The application has the other improvement that the hydroxyl, carboxyl and epoxy groups carried by the graphene are combined with uniformly dispersed barium ions in the solution, the graphene oxide and the barium ions are subjected to complexation reaction to obtain a modifier, and the barium ions are used for improving the wear resistance of the material and are coated on the surface of the metal, so that the metal can be protected from corrosion, and the service life of the final product is prolonged; the hydroxyl, carboxyl and epoxy groups contained in the graphene oxide disclosed by the application are subjected to subsequent crosslinking reaction, and are not difficult to crosslink with other mediums like the graphene itself. The modification process of graphene is saved.
A preparation method of a hydrophobic functional coating comprises the following specific steps:
the preparation method comprises the steps of reacting a hydrophobic and oleophobic modifier, ethylene glycol, chitosan oligosaccharide, core-shell mesoporous aluminosilicate, a barium ion-containing graphene oxide composite material and alkylsilane for 10-20 hours to obtain the environment-friendly functional coating.
The alkylsilane is methyltrimethoxysilane and n-hexyltrimethoxysilane, and the mass ratio of the methyltrimethoxysilane to the n-hexyltrimethoxysilane is 1:1.
The chitosan oligosaccharide contains a large amount of positive charge cation alkaline amino oligosaccharide, can be crosslinked with the graphene oxide composite material containing barium ions, can be crosslinked with the hydrophobic oleophobic modifier, and can be crosslinked with alkylsilane, so that the chitosan oligosaccharide is easily dissolved in water and alcohol solution, and is a small molecular oligosaccharide with amino groups, which is degraded by chitosan from shrimp and crab shells, and is a sugar chain with the polymerization degree of 2-20, and has the characteristics of pure nature, no radiation, no pollution, no addition and the like. The modified polyurethane is added into the paint to serve as a cross-linking agent, so that the modified polyurethane is a very ideal material; has the functions of health and environmental protection.
Because the core-shell type mesoporous aluminosilicate is of a microsphere structure, the microsphere has a superparamagnetic inner core with regular spherical morphology and compact silicon dioxide protection, a single-layer ordered mesoporous aluminosilicate shell with high openness and regularly arranged pore channels, and the pore wall has high-density acidic active sites and large pore diameter, so that the core-shell type mesoporous aluminosilicate is easy to react with groups in the graphene oxide composite material, the hydrophobic oleophobic modifier and the chitosan oligosaccharide, is a silicate material, is also easy to crosslink with alkylsilane, and has good compatibility. In addition, the core-shell type mesoporous aluminosilicate forms an isolation layer on the metal surface due to the micropore structure, thereby isolating external greasy dirt and other materials and having the functions of corrosion prevention and environmental protection.
Core-shell mesoporous aluminosilicate: (1) Dispersing ferroferric oxide into ethanol by a stoner method, and then adding the ethanol into TEOS and ammonia water to prepare a ferroferric oxide@silicon dioxide composite material; taking an amphoteric block copolymer polystyrene-b-poly 4-vinylpyridine (Ps-b-P4 VP) as a guiding agent, adding aluminum hydroxide and TEOS to react to prepare ferroferric oxide@silicon dioxide-Ps-b-P4 VP/aluminum hydroxide/silicon dioxide; finally, calcining to remove the amphiphilic block copolymer Ps-b-P4VP to obtain core-shell mesoporous aluminosilicate; the detailed preparation process is Amphiphilic Block Copolymers Directed Interface Coassembly to Construct Multifunctional Microspheres with Magnetic Core and Monolayer Mesoporous Aluminosilicate Shell (Adv.Mater., 2018,DOI:).
Example 2
A production method of a yarn frame type warp knitting spacer mesh fabric comprises the following specific steps: the guide bars GB1 and GB2 are looped on the front needle mattress yarn, the jacquard guide bar JB1.1 and the jacquard guide bar JB1.2 can be looped on the front needle bed and the back needle bed by yarn padding; guide bar GB4, guide bar GB5 and guide bar GB6 are arranged on the back needle bed in a yarn-laying mode; seven guide bars are matched and knitted into the warp knitting fabric. Guide bars GB1 and GB2 are looped and woven into a surface layer on the front needle mattress yarn, jacquard guide bars JB1.1 and Jacquard guide bar JB1.2 are looped and woven into an intermediate layer on the front needle bed and the rear needle bed, guide bar GB4 and GB5 are looped and woven into a bottom layer on the rear needle bed. The fabric has super perspective and stereoscopic impression, has excellent air permeability and unique style, and is a novel shoe material fabric.
The yarn-laying structure and the yarn-threading mode of each guide bar are as follows:
(1) The yarn-laying structure of the guide bar GB1 is as follows:
1-0-1-1/1-2-1-1/1-0-1-1/2-3-2-2/2-1-1-1/2-3-2-2//；
the yarn threading mode of the guide bar GB1 is as follows: 1, putting through 1;
(2) The yarn-laying structure of the guide bar GB2 is as follows:
2-3-2-2/2-1-1-1/2-3-2-2/1-0-1-1/1-2-1-1/1-0-1-1//；
the yarn threading mode of the guide bar GB2 is as follows: 1, putting through 1;
(3) The jacquard guide bar JB1.1 is arranged as follows: 1-0-1-0/1-2-1-2//;
the jacquard bar JB1.2 is arranged with the following yarn-laying structure: 1-0-1-0/1-2-1-2//;
the jacquard guide bars JB1.1 and JB1.2 are arranged in the following way: full wear;
(4) The yarn-laying structure of the guide bar GB4 is as follows: 1-1-1-0/0-0-0-1//;
the yarn threading mode of the guide bar GB4 is as follows: full wear;
(5) The yarn-laying structure of the guide bar GB5 is as follows: 2-2-3-2/1-1-0-1//;
the yarn threading mode of the guide bar GB5 is as follows: full wear;
(6) The yarn-laying structure of the guide bar GB6 is as follows: 1-1-0-1/1-1-2-1//;
the yarn threading mode of the guide bar GB6 is as follows: full wear;
the knitting raw materials used by each guide bar are as follows:
the knitting raw materials used by the guide bar GB1 are as follows: 200D terylene low stretch yarn;
the knitting raw materials used by the guide bar GB2 are as follows: 200D terylene low stretch yarn;
the knitting raw materials used by the jacquard guide bar JB1.1 and the jacquard guide bar JB1.2 are as follows: 150D terylene low stretch yarn;
the knitting raw materials used by the guide bar GB4 are as follows: 0.10mm terylene folding-resistant monofilament;
the knitting raw materials used by the guide bar GB5 are as follows: 0.10mm terylene folding-resistant monofilament;
The knitting raw materials used by the guide bar GB6 are as follows: 0.10mm terylene folding-resistant monofilament.
The raw materials of the terylene folding-resistant monofilament are multifunctional PET master batch and large bright polyester chips; the mass fraction of the multifunctional PET master batch in the dacron folding-resistant monofilament is 15%.
The antibacterial effect of the dacron folding-resistant monofilament on staphylococcus aureus is more than 96.5%, and the antibacterial effect of the dacron folding-resistant monofilament on escherichia coli is more than 95%.
The preparation method of the dacron folding-resistant monofilament comprises the following steps:
1. pretreatment of wheat straw cores:
taking wheat straw, peeling to obtain a wheat straw core layer material, pickling a wheat straw core, then performing alkaline washing pretreatment, and cleaning with clear water for three times to obtain a pretreated wheat straw core pretreatment object;
the acid washing process of the wheat straw core is that the acid mixed solution is subjected to strong oxidation, and the wheat straw core is soaked for 3 to 6 hours at the temperature of 80 to 90 ℃;
the strong-oxidation acidic mixed solution is a mixed solution of nitric acid and hydrofluoric acid, wherein the mass fraction of the nitric acid solution is 10-15%, and the mass fraction of the hydrofluoric acid is 5-10%;
the alkaline process of the wheat straw core is to soak the wheat straw core treated by the acidification process with alkaline alcohol solution for 3-6 hours at 80-90 ℃;
The alkaline alcohol solution is a mixed solution of isopropanol of sodium hydroxide, wherein the molar ratio of the sodium hydroxide to the isopropanol is 1:10-1:15;
2. load of wheat straw core
Taking the wheat straw core pretreatment material obtained after the treatment in the step one as a raw material, taking a mixed solution of phytic acid and zinc hyaluronate as a functional load solution, and carrying out load reaction under strong stirring, wherein the temperature of the load reaction is 85-90 ℃, and the functional load reaction time is 24-36 h; after the functional load, adopting ultra-high speed centrifugation to obtain a centrifugal precipitate, and carrying out vacuum drying treatment on the centrifugal precipitate at 80 ℃ to obtain a load of the wheat straw core;
the mass fraction of the phytic acid in the functional load liquid is 5%;
the mass fraction of the zinc phytate in the functional load liquid is 3%;
3. charring of wheat straw core
Taking the load of the wheat straw core prepared in the second step as a raw material, and carrying out oxidation treatment for 10-20 h in an oxidation atmosphere with the oxidation temperature of 185-200 ℃ and the oxygen volume fraction of 10-15% and the ozone volume fraction of 1-1.5%; then carbonizing treatment is carried out in helium atmosphere at 500-600 ℃ to obtain carbonized matters of the wheat straw core;
Through the heating of multiple steps, the oxidation effect of ozone is utilized, and the oxidation performance of the functionalized load wheat straw core is improved, so that the carbonization process in the inert gas in the later stage is facilitated, and the pre-oxidation carbonization efficiency is improved.
4. Graphitization of wheat straw core
Taking the carbonized material of the wheat straw core prepared in the third step and potassium nitrate as raw materials, uniformly mixing the raw materials by stirring, then continuously conveying mixed gas of materials and low-oxygen nitrogen, carrying out high-temperature explosion graphitization reaction on the pre-oxidized carbonized material of the functionalized load wheat straw core in a low-oxygen atmosphere, collecting gas at a mixed gas outlet of the high-temperature explosion graphitization reaction, and cooling and collecting the graphitized material of the wheat straw core;
the mass ratio of the carbide to the potassium nitrate of the wheat straw core is 1:0.08;
the temperature in the high-temperature explosion graphitization process is 1000-2000 ℃, wherein the volume fraction of oxygen in the low-oxygen nitrogen atmosphere is 1-5%;
the volume ratio of the materials to the mixed gas in the continuous conveying process is 1:1100;
the conveying flow rate of the mixed gas is 11-21L/min.
5. Hydroxylation of wheat straw core:
dispersing the graphitized compound of the wheat straw core prepared in the step four in 15% of hydrogen peroxide by mass fraction for activation treatment, then carrying out high-temperature high-pressure water bath reaction, and then filtering and drying to obtain the hydroxylated compound of the wheat straw core;
The mass ratio of graphitized matters of the wheat straw core to hydrogen peroxide is 1:10.
The high-temperature high-pressure water bath reaction temperature is 120-130 ℃, the reaction pressure is 0.5-1.5 MPa, and the reaction time is 1.4-2.5 h.
The specific process of filtration and drying is as follows: vacuum drying at 60deg.C for 24 hr
6. Preparation of modified silicon boride:
mixing nano silicon boride with core-shell mesoporous aluminosilicate, coarsely grinding, and calcining to obtain a nano compound; then secondary grinding is carried out on the nano composite, and oxidation acidification is carried out, so as to obtain modified silicon boride;
mixing nano silicon boride with core-shell mesoporous aluminosilicate, coarsely grinding, and calcining to obtain a composite nano composite refining process: mixing nano silicon boride with core-shell type mesoporous aluminosilicate, wherein the mass ratio of the nano silicon boride to the core-shell type mesoporous aluminosilicate is 1:5-1:10, performing coarse grinding in a three-roller grinder, controlling the average grain diameter to be 20-30 mu m after grinding, performing high-speed grinding in a ball mill to prepare pre-calcined composite powder, controlling the average grain diameter of the pre-calcined composite powder to be 5-10 mu m, repeatedly calcining the pre-calcined composite powder for 2-3 times at the high temperature of 1200 ℃, calcining for 2-5 h, performing 300-mesh screen filtering after natural cooling, and removing impurities with the grain diameter larger than 300 meshes to prepare the nano composite; the core-shell mesoporous aluminosilicate can also be replaced by other porous materials, such as graphene and the like.
Then secondary grinding is carried out on the nano composite, and oxidation acidification is carried out, so that the specific refinement process of the modified silicon boride is as follows: then the nano composite is crushed for the second time by a dry powder device NNM6 high-efficiency nano sand mill, the average grain diameter is controlled to be 80-95 nm, then the mixed solution of sulfuric acid and hydrogen peroxide is used for acidizing and activating, the volume ratio of the concentrated sulfuric acid to the hydrogen peroxide is 7:3, the mass fraction of the concentrated sulfuric acid is 98%, the mass fraction of the hydrogen peroxide is 30%, the acidizing and activating time is controlled to be 30-90 min, the acidizing and activating time is controlled to be 75-95 ℃, the high-speed centrifugal treatment is carried out for 30-45 min after the acidizing and activating treatment, and then the modified silicon boride is prepared after the drying is carried out for 2-3 hours at 70-80 ℃.
Coarse grinding is performed firstly, then nano fine grinding is performed, on the basis of guaranteeing the grinding efficiency, the influence of impurities with larger particle sizes on the nano fine grinding is reduced, the uniformity of the ground powder is improved, the grinding time is reduced, and the uniformity of the nano composite powder in the acidification oxidation process is guaranteed. By utilizing the porous characteristic of the core-shell mesoporous aluminosilicate, the nano silicon boride is easy to adsorb in the pores of the core-shell mesoporous aluminosilicate, and the subsequent compatibility with PET particles is mainly considered by modifying the silicon boride, so that the compatibility agent with the PET particles is improved, and the spinnability of spinning is not affected under the condition of improving the strength.
7. Preparation of multifunctional PET master batch:
carrying out hot-melt extrusion granulation on the hydroxylation of the wheat straw core prepared in the step five, the modified silicon boride prepared in the step six and PET particles to obtain multifunctional PET master batch; the mass fraction of the hydroxylation of the wheat straw core in the multifunctional PET master batch is 10-15%; the mass fraction of the modified silicon boride in the multifunctional PET master batch is 1-5%;
8. preparing the dacron folding-resistant monofilament:
carrying out melt spinning on the multifunctional PET master batch and the large bright polyester chips to obtain polyester folding-resistant monofilaments; specifically, a UDY-DT process is adopted; the cooling mode adopts air blowing cooling or natural cooling to obtain polyester unoriented yarn, and the polyester unoriented yarn is stretched to obtain the polyester folding-resistant monofilament, wherein the stretching multiplying power of the stretching process is 2-3 times;
the polyester monofilament spinning process comprises the following steps:
the spinning temperature is 280-320 ℃;
the temperature of the cooling air is 15-25 ℃, the wind speed is 0.5-5 m/s, or the cooling air is naturally cooled;
the spinning speed is 1000-1200 m/min.
A creel for warp-knitted spacer fabric production is cuboid, and has a length of 3.0 m-7 m, a width of 3-6 m and a height of 2-3 m. Preferably, it is: the length is 5m, the width is 4.8 m, and the height is 2.4 m.
A creel for warp knitting spacer fabric production comprises a transverse bracket and a vertical bracket which are fixed by bolts; a bobbin is arranged at the joint of the transverse bracket 4 and the vertical bracket 5, a yarn tube is arranged on the bobbin 3, yarn led out from the yarn tube enters the yarn dividing plate 2 through a tensiometer, the yarn coming out through the yarn dividing plate 2 is concentrated through the yarn collecting plate 1, and then enters a warp knitting machine for knitting to obtain the yarn frame type warp knitting spacer fabric.
The transverse brackets are horizontally arranged; will evenly divide the creel into equal parts in the horizontal direction
The vertical supports are vertically arranged; the creel will be equally divided in the vertical direction.
The number of the yarn dividing plates is 10-20, preferably 16.
The creel is made of white stainless steel.
The white stainless steel is provided with a hydrophobic functional coating, and the coating has the functions of water resistance, rust resistance and the like.
The hydrophobic functional coating comprises the following raw materials in percentage by mass: 3% of hydrophobic and oleophobic modifier, 23% of glycol, 6% of chitosan oligosaccharide, 1% of core-shell mesoporous aluminosilicate, 3% of graphene oxide composite material containing barium ions and 64% of alkylsilane.
The preparation of the hydrophobic and oleophobic modifier comprises the following steps: adding tetraethoxysilane into ethylene glycol to obtain tetraethoxysilane-ethylene glycol solution, regulating the pH of a system to 3.0-4.0 by adopting hydrochloric acid, performing a low-temperature hydrolysis reaction, and then performing a condensation reaction by taking tridecanfluoroheptanoic acid and octadecyltrimethoxysilane as modifiers at the temperature of 60-80 ℃ to prepare the hydrophobic and oleophobic modifier;
in isopropanol solution of the ethyl orthosilicate, the mass fraction of the ethyl orthosilicate is 45%;
the mass ratio of the tridecanfluoroheptanoic acid to the octadecyltrimethoxysilane is 1:1;
The mass ratio of the tridecanfluoroheptanoic acid to the tetraethoxysilane is 1:12;
in the low-temperature hydrolysis reaction process, the reaction temperature range is 8-25 ℃ and the reaction time range is 20-60 minutes;
in the condensation reaction process, the reaction time ranges from 1 to 3 hours.
The preparation method of the barium ion-containing graphene oxide composite material comprises the following steps:
carrying out ultrasonic dispersion on the aqueous solution of graphene oxide and the aqueous solution of barium nitrate to obtain a graphene oxide composite material containing barium ions; controlling the molar ratio of graphene oxide to barium nitrate to be 1:4;
a preparation method of a hydrophobic functional coating comprises the following specific steps:
the preparation method comprises the steps of reacting a hydrophobic and oleophobic modifier, ethylene glycol, chitosan oligosaccharide, core-shell mesoporous aluminosilicate, a barium ion-containing graphene oxide composite material and alkylsilane for 10-20 hours to obtain the environment-friendly functional coating.
The alkylsilane is methyltrimethoxysilane and n-hexyltrimethoxysilane, and the mass ratio of the methyltrimethoxysilane to the n-hexyltrimethoxysilane is 1:1.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the concept of the present invention, and are intended to be within the scope of the present invention.
Claims (6)
1. The production method of the yarn frame type warp knitting spacer mesh cloth is characterized by comprising the following specific steps of: the guide bars GB1 and GB2 are looped on the front needle mattress yarn, the jacquard guide bar JB1.1 and the jacquard guide bar JB1.2 can be looped on the front needle bed and the back needle bed by yarn padding; guide bar GB4, guide bar GB5 and guide bar GB6 are arranged on the back needle bed in a yarn-laying mode; seven guide bars are matched and woven into warp knitting fabrics;
the knitting raw materials used by each guide bar are as follows:
the knitting raw materials used by the guide bar GB1 are as follows: 200D terylene low stretch yarn;
the knitting raw materials used by the guide bar GB2 are as follows: 200D terylene low stretch yarn;
the knitting raw materials used by the jacquard guide bar JB1.1 and the jacquard guide bar JB1.2 are as follows: 150D terylene low stretch yarn;
the knitting raw materials used by the guide bar GB4 are as follows: 0.10mm terylene folding-resistant monofilament;
the knitting raw materials used by the guide bar GB5 are as follows: 0.10mm terylene folding-resistant monofilament;
the knitting raw materials used by the guide bar GB6 are as follows: 0.10mm terylene folding-resistant monofilament;
the raw materials of the terylene folding-resistant monofilament are multifunctional PET master batch and large bright polyester chips; the mass fraction of the multifunctional PET master batch in the polyester folding-resistant monofilament is 5-15%;
the preparation method of the dacron folding-resistant monofilament comprises the following steps:
1. pretreatment of wheat straw cores:
2. load of wheat straw core
Taking the wheat straw core pretreatment material obtained after the treatment in the step one as a raw material, taking a mixed solution of phytic acid and zinc hyaluronate as a functional load solution, and carrying out load reaction under strong stirring, wherein the temperature of the load reaction is 85-90 ℃, and the functional load reaction time is 24-36 h; after the functional load, adopting ultra-high speed centrifugation to obtain a centrifugal precipitate, and carrying out vacuum drying treatment on the centrifugal precipitate at 80 ℃ to obtain a load of the wheat straw core;
3. charring of wheat straw core
Taking the load of the wheat straw core prepared in the second step as a raw material, and carrying out oxidation treatment for 10-20 h in an oxidation atmosphere with the oxidation temperature of 185-200 ℃ and the oxygen volume fraction of 10-15% and the ozone volume fraction of 1-1.5%; then carbonizing treatment is carried out in helium atmosphere at 500-600 ℃ to obtain carbonized matters of the wheat straw core;
4. graphitization of wheat straw core
Taking the carbonized material of the wheat straw core prepared in the third step and potassium nitrate as raw materials, uniformly mixing the raw materials by stirring, then continuously conveying mixed gas of materials and low-oxygen nitrogen, carrying out high-temperature explosion graphitization reaction on the pre-oxidized carbonized material of the functionalized load wheat straw core in a low-oxygen atmosphere, collecting gas at a mixed gas outlet of the high-temperature explosion graphitization reaction, and cooling and collecting the graphitized material of the wheat straw core;
5. Hydroxylation of wheat straw core:
dispersing the graphitized compound of the wheat straw core prepared in the step four in 15% of hydrogen peroxide by mass fraction for activation treatment, then carrying out high-temperature high-pressure water bath reaction, and then filtering and drying to obtain the hydroxylated compound of the wheat straw core;
6. preparation of modified silicon boride:
mixing nano silicon boride with core-shell mesoporous aluminosilicate, coarsely grinding, and calcining to obtain a nano compound; then secondary grinding is carried out on the nano composite, and oxidation acidification is carried out, so as to obtain modified silicon boride;
7. preparation of multifunctional PET master batch:
carrying out hot-melt extrusion granulation on the hydroxylation of the wheat straw core prepared in the step five, the modified silicon boride prepared in the step six and PET particles to obtain multifunctional PET master batch;
8. preparing the dacron folding-resistant monofilament:
and carrying out melt spinning on the multifunctional PET master batch and the large bright polyester chips to obtain the dacron folding-resistant monofilament.
2. The method for producing the yarn frame type warp knitting spacer mesh cloth according to claim 1, wherein the guide bars GB1 and GB2 are knitted into a surface layer by looping front needle mattress yarns, the jacquard guide bars JB1.1 and JB1.2 are knitted into an intermediate layer by looping back yarns on a front needle bed and a back needle bed, the guide bars GB4 and GB5 are knitted into a bottom layer by looping back yarns on the back needle bed.
3. The method for producing a yarn frame type warp knitting spacer mesh according to claim 1, wherein the yarn laying structure and the yarn threading mode of each guide bar are as follows:
(1) The yarn-laying structure of the guide bar GB1 is as follows:
1-0-1-1/1-2-1-1/1-0-1-1/2-3-2-2/2-1-1-1/2-3-2-2//；
the yarn threading mode of the guide bar GB1 is as follows: 1, putting through 1;
(2) The yarn-laying structure of the guide bar GB2 is as follows:
2-3-2-2/2-1-1-1/2-3-2-2/1-0-1-1/1-2-1-1/1-0-1-1//；
the yarn threading mode of the guide bar GB2 is as follows: 1, putting through 1;
(3) The jacquard guide bar J B1.1.1 is provided with the following yarn-laying structure: 1-0-1-0/1-2-1-2//;
the jacquard guide bar J B1.2 is provided with the following yarn-laying structure: 1-0-1-0/1-2-1-2//;
the jacquard guide bars J B1.1 and JB1.2 are arranged in the following way: full wear;
(4) The yarn-laying structure of the guide bar GB4 is as follows: 1-1-1-0/0-0-0-1//;
the yarn threading mode of the guide bar GB4 is as follows: full wear;
(5) The yarn-laying structure of the guide bar GB5 is as follows: 2-2-3-2/1-1-0-1//;
the yarn threading mode of the guide bar GB5 is as follows: full wear;
(6) The yarn-laying structure of the guide bar GB6 is as follows: 1-1-0-1/1-1-2-1//;
the yarn threading mode of the guide bar GB6 is as follows: is full of wear.
4. The method for producing a creel warp knitted spacer scrim of claim 1, wherein the melt spinning is by a UDY-DT process; the cooling mode adopts air blowing cooling or natural cooling to obtain polyester unoriented yarn, and the polyester unoriented yarn is stretched to obtain the polyester folding-resistant monofilament, wherein the stretching multiplying power of the stretching process is 2-3 times; the spinning process comprises the following steps: the spinning temperature is 280-320 ℃; the temperature of the cooling air is 15-25 ℃, the wind speed is 0.5-5 m/s, or the cooling air is naturally cooled; the spinning speed is 1000-1200 m/min.
5. The method for producing a creel warp knitted spacer mesh according to claim 1, wherein the creel for the production of the creel warp knitted spacer mesh comprises a horizontal bracket and a vertical bracket which are fixed by bolts; a bobbin is arranged at the joint of the transverse support and the vertical support, a yarn tube is arranged on the bobbin, yarns led out of the yarn tube enter a yarn dividing plate through a tensiometer, yarns led out of the yarn dividing plate are concentrated through a yarn collecting plate, and the yarns enter a warp knitting machine for knitting to obtain a yarn frame type warp knitting interval mesh; the creel is cuboid.
6. The method for producing a creel warp knitted spacer mesh according to claim 5, wherein the creel is made of white stainless steel; a hydrophobic functional coating is arranged on the white stainless steel; the hydrophobic functional coating comprises the following raw materials in percentage by mass: 3% of hydrophobic and oleophobic modifier, 23% of glycol, 6% of chitosan oligosaccharide, 1% of core-shell mesoporous aluminosilicate, 3% of barium ion-containing graphene oxide composite material, 64% of alkylsilane, and preparation of the hydrophobic and oleophobic modifier: adding tetraethoxysilane into ethylene glycol to obtain tetraethoxysilane-ethylene glycol solution, regulating the pH of a system to 3.0-4.0 by adopting hydrochloric acid, performing a low-temperature hydrolysis reaction, and then performing a condensation reaction by taking tridecanfluoroheptanoic acid and octadecyltrimethoxysilane as modifiers at the temperature of 60-80 ℃ to prepare the hydrophobic and oleophobic modifier; the preparation method of the barium ion-containing graphene oxide composite material comprises the following steps: and performing ultrasonic dispersion on the aqueous solution of the graphene oxide and the aqueous solution of the barium nitrate to obtain the graphene oxide composite material containing barium ions.
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| CN110158233A (en) * | 2019-06-20 | 2019-08-23 | 福建信亿机械科技有限公司 | A kind of more comb Jacquard double rib warp looms of band independence creel |
| CN113529262B (en) * | 2020-11-19 | 2023-03-24 | 福建省晋江市华宇织造有限公司 | Multi-color screen cloth |
| CN113882079B (en) * | 2020-11-29 | 2022-11-18 | 福建省晋江市华宇织造有限公司 | Mesh cloth for replacing shoe tongue or shoe heel |
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