CN113957578B - Inorganic nonmetallic fiber reinforced monofilament, coated wire, preparation method and application thereof - Google Patents
Inorganic nonmetallic fiber reinforced monofilament, coated wire, preparation method and application thereof Download PDFInfo
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Images
Classifications
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- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/40—Yarns in which fibres are united by adhesives; Impregnated yarns or threads
- D02G3/404—Yarns or threads coated with polymeric solutions
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
- D06B15/02—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours by squeezing rollers
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B21/00—Successive treatments of textile materials by liquids, gases or vapours
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B3/00—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating
- D06B3/04—Passing of textile materials through liquids, gases or vapours to effect treatment, e.g. washing, dyeing, bleaching, sizing, impregnating of yarns, threads or filaments
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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- D10B2101/02—Inorganic fibres based on oxides or oxide ceramics, e.g. silicates
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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- D10B2101/06—Glass
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
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- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
- D10B2321/0211—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene high-strength or high-molecular-weight polyethylene, e.g. ultra-high molecular weight polyethylene [UHMWPE]
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- D10B2321/06—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated alcohols, e.g. polyvinyl alcohol, or of their acetals or ketals
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- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/10—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
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- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
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Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The invention discloses an inorganic nonmetallic fiber reinforced monofilament, a coated wire, a preparation method and application thereof, wherein the inorganic nonmetallic fiber reinforced monofilament comprises a core wire and a high polymer layer coated outside the core wire through dipping treatment, the fineness of the core wire is 50-200D, and the diameter of the inorganic nonmetallic fiber reinforced monofilament is 0.02-0.10mm. In addition, the invention also discloses a preparation method of the inorganic nonmetallic fiber reinforced monofilament, which specifically comprises the following steps: unwinding filaments, cleaning the filaments, drying the filaments, immersing the filaments, feeding the filaments upwards into a shaping hole, pre-drying, cooling and winding to form the filament. The inorganic non-metal fiber filaments can be immersed in the aqueous polyurethane emulsion to form a glue film layer on the surface of the inorganic non-metal fiber filaments, so that breakage caused by direct friction of the inorganic non-metal fiber filaments is prevented, itching feeling is generated when the inorganic non-metal fiber filaments are contacted with a human body, the coated yarn prepared by the invention is better in wearing comfort after being prepared into a product, and meanwhile, the cutting resistance grade can reach more than grade B.
Description
Technical Field
The invention belongs to the technical field of preparation of anti-cutting functional fiber yarns, and relates to an inorganic nonmetallic fiber reinforced monofilament, a coated wire, a preparation method and application thereof.
Background
Inorganic nonmetallic fibers represented by glass fibers or basalt fibers are high-quality and low-cost raw materials which are frequently used in the preparation of cut-resistant gloves or other cut-resistant fabric products, are limited in that the raw materials are easy to break to cause itching, monofilaments are easy to break to form burrs after being stressed (such as bending, stretching and kinking) in the processing and using processes, then when the cut-resistant gloves or other cut-resistant fabric products prepared from the inorganic fibers are used, the parts exposed to the outer surfaces are easy to break under the friction action, and the broken fibers cannot fall off from the fabric, but generate tiny burrs, so that the skin of a user is injured, such as skin pricking, skin itching and allergy are caused.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an inorganic nonmetallic fiber reinforced monofilament, a coated wire, a preparation method and application thereof.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The inorganic nonmetallic fiber reinforced monofilament comprises a core wire and a high polymer layer coated outside the core wire through dipping treatment, wherein the fineness of the core wire is 50-200D, and the diameter of the inorganic nonmetallic fiber reinforced monofilament is 0.02-0.10mm.
Preferably, the core filaments are filaments of glass fibers or basalt fibers, and the outer high polymer layer is an aqueous polyurethane resin layer.
On the other hand, the invention also provides a preparation method of the inorganic nonmetallic fiber reinforced monofilament, which specifically comprises the following steps:
step 1, unwinding filaments, namely actively unwinding inorganic nonmetallic fiber filaments with the speed of 50-200D through an unwinding roller, wherein the linear speed of unwinding is 4-20 m/min;
step 2, cleaning the filaments, conveying the inorganic nonmetallic fiber filaments unwound in the step 1 into a cleaning tank, cleaning the surfaces of the filaments by using hot water with the temperature of 40-60 ℃, and removing surface adhesion water by using a squeeze roller after the filaments leave the liquid level;
step 4, filament impregnation treatment, namely conveying the filaments treated in the previous step into a gum dipping tank, wherein gum dipping Chi Zhongzhuang is provided with aqueous polyurethane emulsion, the mass concentration of the aqueous polyurethane emulsion is 20-50%, and the impregnation treatment time is 0.06-0.4 seconds;
Step 5, feeding the filaments immersed in step 4 upwards through a tension wheel into a shaping hole, wherein the shaping hole is round or approximately round, and the aperture is 0.03-0.15mm, preferably 0.05-0.1mm;
step 6, pre-baking the shaped filament obtained in the step 5, wherein the temperature is 60-100 ℃ and the pre-baking time is 30-60 seconds;
step 7, drying, namely conveying the filaments pre-dried in the step 6 into a drying oven at the temperature of 100-160 ℃ for 30-60 seconds;
and 8, cooling, namely rapidly cooling the filaments dried in the step 7 by using a cold air nozzle, wherein the cold air speed is 0.5-1 m/s, and the cooling temperature is 5-20 ℃.
And 9, winding and forming the cooled filaments in the step 8 by a winding roller.
Preferably, the step 3 and the step 4 further comprise a step of impregnating the sol, wherein the specific step of impregnating the sol is to convey the dried and cleaned filaments into a sol pool, the concentration of the sol Chi Chengyou silica sol or aluminum sol is 20-50%, and the impregnation treatment time is 0.06-0.4 seconds.
On the other hand, the invention also provides a coated wire prepared from the inorganic nonmetallic fiber reinforced monofilament, which comprises a core part and a coating layer coated outside the core part, wherein the core part comprises the inorganic nonmetallic fiber reinforced monofilament and simultaneously comprises ultrahigh molecular weight polyethylene filaments and/or high-strength low-elongation polyester filaments, the monofilaments and the filaments of the core part are arranged in parallel, preferably, the coating layer comprises an inner coating layer and an outer coating layer, the inner coating layer is coated by using short fiber yarns, and the outer coating layer is coated by using filaments; preferably, the fineness of the high molecular weight polyethylene filaments and the high-strength low-elongation polyester filaments is 50-400D.
Preferably, the short fiber yarn adopted by the cladding inner layer is selected from one pure yarn or any two or more blended yarns of terylene, chinlon, acrylon, cotton, ultra-high molecular weight polyethylene or high-strength PVA; filaments adopted by the coating outer layer are nylon filaments and/or polyester filaments; preferably, the linear density of the pure yarn or the blended yarn is 10-40 inches, the twist coefficient is 240-320, the wrapping twisting direction of the wrapping inner layer is S twisting or Z twisting, and the wrapping twisting degree is 400-1200 twisting/meter; preferably, the linear density of the nylon filaments or the polyester filaments is 50-150D, the twisting direction of the coating outer layer is opposite to the twisting direction of the coating inner layer, and the coating twisting degree is 400-1200 twists/m.
On the other hand, the invention also provides a preparation method of the coated wire prepared from the inorganic nonmetallic fiber reinforced monofilament, which is implemented according to the following steps:
step I, feeding a core, wherein the core comprises inorganic nonmetallic fiber monofilaments and simultaneously comprises ultra-high molecular weight polyethylene filaments and/or high-strength low-elongation polyester filaments, and the monofilaments and the filaments of the core are fed in parallel;
step II, coating an inner layer, namely coating the inner layer of a core part by taking one pure spun staple yarn or more than two blended staple yarns selected from terylene, chinlon, acrylon, cotton, ultra-high molecular weight polyethylene or high-strength PVA as a coating inner layer;
And III, performing outer coating, namely performing outer coating on the yarns subjected to inner coating in the step II by adopting nylon filaments and/or polyester filaments, so as to obtain the coated yarns.
Preferably, in the step I, the fineness of the ultra-high molecular weight polyethylene fiber or the high-strength low-elongation polyester fiber is 50-400D; in the step II, the linear density of the pure yarn or the blended yarn is 10-40 English count, and the twist coefficient is 240-320; in the step III, preferably, the linear density of the nylon filament or the polyester filament is 50-150D.
Preferably, in the step II, the wrapping twisting direction of the wrapping inner layer is S twisting or Z twisting, and the wrapping twisting degree is 400-1200 twisting/m; in the step III, the twisting direction of the coating outer layer is opposite to the twisting direction of the coating inner layer, and the coating twist is 400-1200 twists/m.
On the other hand, the invention also provides application of the coated wire prepared from the inorganic reinforced fiber in preparing an anti-cutting glove liner or preparing an anti-cutting fabric.
Preferably, the glove liner with the cutting resistance is manufactured by knitting the glove liner on a 7G/10G/13G/15G/18G glove knitting machine; the preparation of the anti-cutting fabric is as follows: the cutting-resistant woven fabric is woven on a knitting or weaving machine, and the cutting resistance of the prepared cutting-resistant glove liner or the cutting-resistant fabric is tested by adopting EN388 standard, and the cutting resistance grade can reach more than B grade.
Compared with the prior art, the invention has the beneficial effects that: according to the preparation method of the inorganic nonmetallic fiber monofilament, the inorganic nonmetallic fiber filament is subjected to dipping treatment, so that a high polymer layer is formed on the surface of the inorganic nonmetallic fiber filament, on one hand, breakage caused by direct friction of the inorganic nonmetallic fiber filament is prevented, burrs generated after breakage of the inorganic nonmetallic fiber are reduced, on the other hand, a certain amount of high polymer emulsion is immersed into a filament bundle gap of the filament, so that the toughness of the inorganic nonmetallic fiber filament is improved to a certain extent, and therefore, the common inorganic nonmetallic fiber filament forms a reinforced monofilament with integral structural performance. The invention adopts sol dipping and aqueous polyurethane solution twice dipping preferably, achieves better effect and further enhances cutting resistance. The invention also utilizes the inorganic nonmetallic fiber monofilament to prepare the coated yarn, and the inorganic nonmetallic fiber monofilament and the other two high-strength fiber filaments are combined to be used as core filaments to be coated simultaneously, so that on one hand, the cutting resistance of the core filaments is ensured, and on the other hand, the common taking fiber is adopted as an external coating layer, so that the itching feeling can be reduced, and the coated yarn is more comfortable when being used for manufacturing the wearing protective device. When the coated yarn is prepared, the inner layer and the outer layer are preferably coated, burrs of the broken inner inorganic fiber are further prevented from being exposed out of the surface, and meanwhile, the coating layer is made of the commonly used textile fiber for wearing, so that the coated yarn has better comfort in wearing.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic flow chart of a first embodiment of a method for producing an inorganic nonmetallic fiber monofilament of the present invention;
FIG. 2 is a schematic flow chart of a second embodiment of a method for preparing an inorganic nonmetallic fiber monofilament of the present invention
FIG. 3 is a schematic illustration of a coating process for making a coated wire from inorganic nonmetallic fiber monofilaments in accordance with the present invention.
In the figure, 1, an unwinding roller, 2, a cleaning tank, 3, a squeezing roller, 4, a dipping tank, 5, a tension wheel, 6, a standard hole, 7, a pre-baking device, 8, an oven, 9, a cold air nozzle, 10, a winding roller, 11, a driving roller, 12, a water outlet, 13, a water inlet, 14, a sol tank, 15, a second tension wheel, 2-1, a first core wire unwinding roller, 2-2, a second core wire unwinding, 2-3, a first coating mechanism and 2-4, a second coating mechanism.
Detailed Description
For the purposes of promoting an understanding of the principles and technical aspects of embodiments of the application, reference will now be made in detail to the drawings of embodiments of the application, the general description of which is made in detail to the embodiments described herein, it is to be understood that the embodiments described are some, but not all embodiments of the application, and that the particular features, structures or characteristics of the embodiments may be combined in any suitable manner in one or more embodiments. In the following description, specific details such as specific configurations and components are provided merely to facilitate a thorough understanding of embodiments of the present application. It will therefore be apparent to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the application. In addition, descriptions of well-known functions and constructions are omitted in the embodiments for clarity and conciseness.
In the embodiment of the invention, the inorganic nonmetallic fiber reinforced monofilament comprises a core wire and a high polymer layer coated outside the core wire through impregnation treatment, wherein the fineness of the core wire is 50-200D, the diameter of the inorganic nonmetallic fiber reinforced monofilament is 0.02-0.10mm, the core wire is a filament of glass fiber or basalt fiber, and the outer high polymer layer is an aqueous polyurethane resin layer.
Wherein, the core filament is selected from glass fiber or basalt fiber filament with fineness of 50-200D, the fineness is proper after the dipping treatment, the filament is too thin and easy to break, the too coarse product is too coarse and is unfavorable for the processing of subsequent products, and the fineness value is preferably 80-150D.
The preparation method of the inorganic nonmetallic fiber reinforced monofilament comprises the following specific steps of:
step 1, unwinding filaments, namely actively unwinding inorganic nonmetallic fiber filaments with the speed of 50-200D through an unwinding roller, wherein the linear speed of unwinding is 4-20 m/min;
step 2, cleaning the filaments, conveying the inorganic nonmetallic fiber filaments unwound in the step 1 into a cleaning tank, cleaning the surfaces of the filaments by using hot water with the temperature of 40-60 ℃, and slightly extruding by using an extruding roller 3 after leaving the liquid level to remove surface adhesion water;
step 4, filament impregnation treatment, namely conveying the filaments treated in the previous step into a dipping tank 4, wherein aqueous polyurethane emulsion is filled in the dipping tank 4, the concentration is 20-50%, and the impregnation treatment time is 0.06-0.4 seconds;
Step 5, feeding the filaments immersed in step 4 upwards through a tension wheel 5 into a shaping hole 6, wherein the shaping hole 6 is round or approximately round, and the aperture is 0.03-0.15mm, preferably 0.05-0.1mm;
step 6, pre-drying, namely, feeding the shaped filament obtained in the step 5 into a pre-drying device 7 for pre-drying, wherein the pre-drying temperature is 60-100 ℃ and the pre-drying time is 30-60 seconds;
step 7, drying, namely conveying the filaments pre-dried in the step 6 into a drying oven 8 at the temperature of 100-160 ℃ for 30-60 seconds;
and 8, cooling, namely rapidly cooling the filaments dried in the step 7 by using a cold air nozzle, wherein the cold air speed is 0.5-1 m/s, and the cooling temperature is 5-20 ℃.
And 9, winding the cooled filaments in the step 8 by a winding roller 10 to form.
In the method, the step 2 adopts the hot water with the temperature of 40-60 ℃ for cleaning, so that on one hand, the effect is better than that of a cold water cleaner, the cleaning efficiency is high, and on the other hand, the water temperature is not particularly high, thereby saving energy and reducing energy consumption. In the step 2, when the extrusion roller is used for removing the surface adhesion water, excessive pressure is not suitable, because the glass fiber and the basalt fiber basically do not absorb moisture, the water is basically adhered to the surface, the effect can be achieved by light extrusion, in addition, the glass fiber and the basalt fiber are relatively brittle, and the glass fiber and the basalt fiber are easy to brittle fracture after excessive extrusion.
In the step 4, the tension and the speed are controlled during the impregnation treatment, so that the inner and outer coordination is realized during the impregnation of the filaments, and the stress on the inner and outer layers is uniform, wherein the selection of the impregnation time is important, and if the impregnation time is too long, the inner glue is too much, the filaments are bound, so that the finished filaments are too hard, and the subsequent processing is not facilitated. In addition, the tension control is combined with the tension wheel 5 in the step 5 to carry out tension adjustment, the diameter of the tension wheel 5 is 5-10cm, the tension is spring pressure, and the tension control range is 0.3-1.0N.
At the same time, the aperture of the regular holes 6 is 0.03-0.15mm, and preferably 0.05-0.1mm, and the aperture of the holes is consistent with the glue carrying amount so that the holes are not stained with a lot of redundant glue.
In step 9, the winding speed and the previous unwinding speed must be consistent during winding, otherwise the winding speed and the previous unwinding speed will be loose or the tension will be too high. The speed consistency of the unwinding roller and the winding roller is ensured by arranging two driving rollers 11 with the same speed and the same diameter between the unwinding roller 1 and the winding roller 10. One of the two driving rollers 11 is in contact with the winding roller 10, and the other driving roller 11 is in contact with the unwinding roller 1.
The preparation method of the inorganic nonmetallic fiber reinforced monofilament, as shown in fig. 2, in another embodiment, specifically comprises the following steps:
Step 1, unwinding filaments, namely actively unwinding inorganic nonmetallic fiber filaments with the speed of 50-200D through an unwinding roller, wherein the linear speed of unwinding is 4-20 m/min;
step 2, cleaning the filaments, conveying the inorganic nonmetallic fiber filaments unwound in the step 1 into a cleaning tank, cleaning the surfaces of the filaments by using hot water with the temperature of 40-60 ℃, and slightly extruding by using an extruding roller 3 after leaving the liquid level to remove surface adhesion water;
and then carrying out a step of dipping sol on the dried filaments, namely conveying the dried and cleaned filaments into a sol pool 14, wherein the sol pool 14 contains silica sol or aluminum sol, the concentration of the silica sol or aluminum sol is 20-50%, and the dipping treatment time is 0.06-0.4 seconds.
Step 4, filament impregnation treatment, namely conveying the filaments treated in the previous step into a dipping tank 4, wherein aqueous polyurethane emulsion is filled in the dipping tank 4, the concentration is 20-50%, and the impregnation treatment time is 0.06-0.4 seconds;
step 5, feeding the filaments immersed in step 4 upwards through a tension wheel 5 into a shaping hole 6, wherein the shaping hole 6 is round or approximately round, and the aperture is 0.03-0.15mm, preferably 0.05-0.1mm;
Step 6, pre-drying, namely, feeding the shaped filament obtained in the step 5 into a pre-drying device 7 for pre-drying, wherein the pre-drying temperature is 60-100 ℃ and the pre-drying time is 30-60 seconds;
step 7, drying, namely conveying the filaments pre-dried in the step 6 into a drying oven 8 at the temperature of 100-160 ℃ for 30-60 seconds;
and 8, cooling, namely rapidly cooling the filaments dried in the step 7 by using a cold air nozzle, wherein the cold air speed is 0.5-1 m/s, and the cooling temperature is 5-20 ℃.
And 9, winding the cooled filaments in the step 8 by a winding roller 10 to form.
In this embodiment, a step of impregnating silica sol or alumina sol is added before impregnating the aqueous polyurethane solution, and the principle of the action is that the silica sol and the alumina sol form a film on the surface of the fibers and can enter into gaps between the fibers, thereby further enhancing the cutting resistance of the filaments.
The coated wire prepared by the inorganic nonmetallic fiber reinforced monofilament comprises a core part and a coated layer coated outside the core part, wherein the core part comprises the inorganic nonmetallic fiber reinforced monofilament and simultaneously comprises ultrahigh molecular weight polyethylene filaments and/or high-strength low-elongation polyester filaments, the monofilaments and the filaments of the core part are arranged in parallel, preferably, the coated layer comprises a coated inner layer and a coated outer layer, the coated inner layer is coated by adopting short fiber yarns, and the coated outer layer is coated by adopting filaments; preferably, the fineness of the high molecular weight polyethylene filaments and the high-strength low-elongation polyester filaments is 50-400D.
The short fiber yarn adopted by the cladding inner layer is selected from one kind of pure yarn or blended yarn of more than two kinds of yarns selected from terylene, chinlon, acrylon, cotton, ultra-high molecular weight polyethylene or high-strength PVA; filaments adopted by the coating outer layer are nylon filaments and/or polyester filaments; preferably, the linear density of the pure yarn or the blended yarn is 10-40 inches, the twist coefficient is 240-320, the wrapping twisting direction of the wrapping inner layer is S twisting or Z twisting, and the wrapping twisting degree is 400-1200 twisting/meter; preferably, the linear density of the nylon filaments or the polyester filaments is 50-150D, the twisting direction of the coating outer layer is opposite to the twisting direction of the coating inner layer, and the coating twisting degree is 400-1200 twists/m.
As shown in fig. 3, the method for preparing the coated wire by using the inorganic nonmetallic fiber monofilament is specifically implemented according to the following steps:
step I, feeding a core, wherein the core comprises inorganic nonmetallic fiber monofilaments and simultaneously comprises ultra-high molecular weight polyethylene filaments and/or high-strength low-elongation polyester filaments, and the monofilaments and the filaments of the core are fed in parallel;
step II, coating an inner layer, namely coating the inner layer of a core part by taking one pure spun staple yarn or more than two blended staple yarns selected from terylene, chinlon, acrylon, cotton, ultra-high molecular weight polyethylene or high-strength PVA as a coating inner layer;
And III, performing outer coating, namely performing outer coating on the yarns subjected to inner coating in the step II by adopting nylon filaments and/or polyester filaments, so as to obtain the coated yarns.
In the step I, the fineness of the ultra-high molecular weight polyethylene fiber or the high-strength low-elongation polyester fiber is
50-400D; in the step II, the linear density of the pure yarn or the blended yarn is 10-40 English count, and the twist coefficient is 240-320; in the step III, preferably, the linear density of the nylon filament or the polyester filament is 50-150D.
In the step II, the wrapping twisting direction of the wrapping inner layer is S twisting or Z twisting, and the wrapping twisting degree is 400-1200 twisting/m; in the step III, the twisting direction of the coating outer layer is opposite to the twisting direction of the coating inner layer, and the coating twist is 400-1200 twists/m.
The application of the inorganic nonmetallic fiber coated wire is used for preparing the anti-cutting glove liner or the anti-cutting fabric. The glove liner with the cutting resistance is manufactured by weaving on a 7G/10G/13G/15G/18G glove braiding machine; the preparation of the anti-cutting fabric is as follows: the cutting-resistant woven fabric is woven on a knitting or weaving machine, and the cutting resistance of the prepared cutting-resistant glove liner or the cutting-resistant fabric is tested by adopting EN388 standard, and the cutting resistance grade can reach more than B grade. Wherein 7G/10G/13G/15G/18G represents a glove knitting machine of 7 needles, 10 needles, 13 needles, 15 needles and 18 needles; as shown in table 1, the cut resistance grade of the inorganic nonmetallic fiber coated wire woven product prepared by the method of the invention can reach the grade EN388, B, C, D.
Example 1
The inorganic nonmetallic fiber reinforced monofilament comprises a core wire and a high polymer layer which is coated outside the core wire through dipping treatment, wherein the fineness of the core wire is 200D, the diameter of the inorganic nonmetallic fiber reinforced monofilament is 0.10mm, the core wire is a filament of glass fiber, and the outer high polymer layer is a water-based polyurethane resin layer.
The preparation method of the reinforced monofilament specifically comprises the following steps:
step 1, unwinding a filament, namely actively unwinding a 200D inorganic nonmetallic fiber filament through an unwinding roller, wherein the linear speed of unwinding is 20 meters/min;
step 2, cleaning the filaments, conveying the inorganic nonmetallic fiber filaments unwound in the step 1 into a cleaning tank, cleaning the surfaces of the filaments by using hot water with the temperature of 60 ℃, and removing surface adhesion water by using a squeeze roller after the filaments leave the liquid level;
step 4, filament impregnation treatment, namely conveying the filaments treated in the previous step into a gum dipping tank, wherein gum dipping Chi Zhongzhuang is provided with aqueous polyurethane emulsion, the mass concentration of the aqueous polyurethane emulsion is 50%, and the impregnation treatment time is 0.4 seconds;
And 5, feeding the filaments immersed in the step 4 upwards into a shaping hole through a tension wheel, wherein the shape of the shaping hole is round or approximate round, and the aperture is 0.15mm.
Step 6, pre-drying, namely pre-drying the shaped filament obtained in the step 5 at the temperature of 100 ℃ for 60 seconds;
step 7, drying, namely conveying the filaments pre-dried in the step 6 into a drying oven at 160 ℃ for 60 seconds;
and 8, cooling, namely rapidly cooling the filaments dried in the step 7 by using a cold air nozzle, wherein the cold air speed is 1 m/s, and the cooling temperature is 20 ℃.
And 9, winding and forming the cooled filaments in the step 8 by a winding roller.
The coated wire prepared by the inorganic nonmetallic fiber reinforced monofilament comprises a core part and a coating layer coated outside the core part, wherein the core part comprises the inorganic nonmetallic fiber reinforced monofilament and simultaneously comprises ultrahigh molecular weight polyethylene filaments, the monofilaments and the filaments of the core part are arranged in parallel, and the fineness of the high molecular weight polyethylene filaments is 50D.
The coating layer comprises a coating inner layer and a coating outer layer, wherein the coating inner layer is coated by short fiber yarns, and the coating outer layer is coated by filaments; the short fiber yarn adopted by the cladding inner layer is polyester, the linear density is 10 inches, the twist coefficient is 240, the cladding twisting direction of the cladding inner layer is S twisting, and the cladding twisting degree is 400 twisting/m;
Filaments adopted by the coating outer layer are polyester filaments; the linear density of the polyester filaments is 50D, the twisting direction of the coating outer layer is opposite to that of the coating inner layer, and the coating twisting degree is 400 twists/meter.
The method for preparing the coated wire is specifically implemented according to the following steps:
step I, feeding a core, wherein the core comprises the inorganic nonmetallic fiber monofilaments and simultaneously comprises ultra-high molecular weight polyethylene filaments, and the monofilaments and the filaments of the core are fed in parallel together;
step II, coating an inner layer, namely coating the inner layer of the core part by taking polyester as a coating inner layer;
and III, performing outer coating, namely performing outer coating on the yarns subjected to inner coating in the step II by adopting polyester filaments, so as to obtain the coated yarns.
In the step I, the fineness of the ultra-high molecular weight polyethylene fiber or the high-strength low-elongation polyester fiber is 50D; in the step II, the linear density of the pure yarn or the blended yarn is 10 English count, and the twist coefficient is 240; in the step III, the linear density of the polyester filaments is 50D.
In the step II, the wrapping twisting direction of the wrapping inner layer is S twisting, and the wrapping twisting degree is 400 twisting/m; in the step III, the twisting direction of the coating outer layer is opposite to the twisting direction of the coating inner layer, and the coating twist is 400 twists/m.
The application of the inorganic nonmetallic fiber coated wire is used for preparing the anti-cutting glove liner or the anti-cutting fabric. The glove liner with the cutting resistance is manufactured by weaving the glove liner on a 13G glove braiding machine; the preparation of the anti-cutting fabric is as follows: the cutting-resistant woven fabric is woven on a knitting or weaving machine, and the cutting resistance of the prepared cutting-resistant glove liner or the cutting-resistant fabric is tested by adopting EN388 standard, and the cutting resistance grade can reach more than B grade. Wherein 13G represents a 13-needle glove knitting machine; as shown in table 1, the cut resistance grade of the inorganic nonmetallic fiber coated wire woven product prepared by the method of the invention can reach the grade EN388, B, C, D.
Example 2
The inorganic nonmetallic fiber reinforced monofilament comprises a core wire and a high polymer layer which is coated outside the core wire through dipping treatment, wherein the fineness of the core wire is 100D, the diameter of the inorganic nonmetallic fiber reinforced monofilament is 0.06mm, the core wire is a filament of glass fiber, and the outer high polymer layer is a water-based polyurethane resin layer.
The overall procedure for the preparation of the reinforcing monofilaments is essentially the same as in example 1, with the following different relevant process parameters:
The unwinding linear speed in the step 1 is 10 m/min;
in step 2, hot water with temperature of 50deg.C is selected for cleaning
In the step 3, the temperature of the oven is 120 ℃, and the drying time is 45 seconds;
in the step 4, the mass concentration of the aqueous polyurethane emulsion is 30% during the filament dipping treatment, and the dipping treatment time is 0.2 seconds;
the shape of the regular hole in the step 5 is round, the aperture is 0.05mm,
in the step 6, the pre-baking temperature is 80 ℃ and the pre-baking time is 45 seconds;
step 7, drying at 120 ℃ for 45 seconds;
and 8, cooling, namely rapidly cooling the dried filaments in the step 7 by using a cold air nozzle, wherein the cold air speed is 0.8 m/s, and the cooling temperature is 10 ℃.
The coated wire prepared using the inorganic nonmetallic fiber reinforced monofilament described above is characterized essentially as in example 1, with the following parameters, partially different: the core comprises the inorganic nonmetallic fiber reinforced monofilament and high-strength low-elongation polyester filaments, wherein the fineness of the high-strength low-elongation polyester filaments is 400D.
The short fiber yarn adopted by the cladding inner layer is nylon, the linear density is 40 inches, the twist coefficients are 320, the cladding twist direction of the cladding inner layer is Z twist, and the cladding twist is 1200 twists/meter;
the filaments adopted by the coating outer layer are nylon filaments; the linear density of the nylon filaments is 150D, the twisting direction of the coating outer layer is opposite to that of the coating inner layer, and the coating twisting degree is 1200 twists/meter.
The method for preparing the coated wire is specifically implemented according to the following steps:
step I, the middle core part comprises high-strength low-elongation polyester filaments, and the fineness of the high-strength low-elongation polyester filaments is 400D
Step II, coating an inner layer, namely coating the core part by taking nylon short fiber yarns as a coating inner layer; the linear density of the nylon staple yarns is 40 inches; the twist coefficients are 240-320, the twisting direction is Z twisting, and the coating twist is 1200 twisting/meter
And III, performing outer coating, namely performing outer coating on the yarns subjected to inner coating in the step II by adopting nylon filaments, wherein the linear density of the nylon filaments is 150D, the twisting direction is opposite to that of the inner coating, and the coating twist is 1200 twists/meter to obtain the coated yarns.
Example 3
The inorganic nonmetallic fiber reinforced monofilament comprises a core wire and a high polymer layer which is coated outside the core wire through dipping treatment, wherein the fineness of the core wire is 50D, the diameter of the inorganic nonmetallic fiber reinforced monofilament is 0.02mm, the core wire is a filament of glass fiber, and the outer high polymer layer is a water-based polyurethane resin layer.
The overall procedure for the preparation of the reinforcing monofilaments is substantially the same as in the examples, with the following different relevant process parameters:
The unwinding speed in step 1 is 4 m/min;
in step 2, hot water with temperature of 40 ℃ is selected for cleaning
In the step 3, the temperature of the oven is 100 ℃, and the drying time is 30 seconds;
in the step 4, the mass concentration of the aqueous polyurethane emulsion is 20% and the dipping treatment time is 0.06 seconds;
the shape of the regular hole in the step 5 is round, the aperture is 0.03mm,
in the step 6, the pre-baking temperature is 60 ℃, and the pre-baking time is 30 seconds;
step 7, drying at 100 ℃ for 30 seconds;
and 8, cooling, namely rapidly cooling the dried filaments in the step 7 by using a cold air nozzle, wherein the cold air speed is 0.5 m/s, and the cooling temperature is 5 ℃.
The coated wire prepared using the inorganic nonmetallic fiber reinforced monofilament described above is characterized essentially as in example 1, with the following parameters, partially different: the core comprises the inorganic nonmetallic fiber reinforced monofilament and high-strength low-elongation polyester filaments, wherein the fineness of the high-strength low-elongation polyester filaments is 200D.
The short fiber yarn adopted by the cladding inner layer is nylon and acrylic fiber blended short fiber yarn, the linear density is 20 inches, the twist coefficient is 280, the cladding twist direction of the cladding inner layer is Z twist, and the cladding twist is 800 twists/meter;
The filaments adopted by the coating outer layer are nylon filaments; the linear density of the nylon filaments is 100D, the twisting direction of the coating outer layer is opposite to that of the coating inner layer, and the coating twist is 800 twists/meter.
The method for preparing the coated wire is specifically implemented according to the following steps:
step I, the middle core part comprises high-strength low-elongation polyester filaments, and the fineness of the high-strength low-elongation polyester filaments is 200D
Step II, coating an inner layer, namely coating the core part by taking nylon and acrylic blended staple yarns as coating inner layers; the linear density of the nylon and acrylic blended staple yarn is 20 inches; the twist coefficients are 280, the twisting direction is Z twisting, and the coating twist is 800 twisting/meter
And III, performing outer coating, namely performing outer coating on the yarns subjected to inner coating in the step II by adopting nylon filaments, wherein the linear density of the nylon filaments is 100D, the twisting direction is opposite to that of the inner coating, and the coating twist is 800 twists/meter, so that the coated wire is prepared.
Example 4
The inorganic nonmetallic fiber reinforced monofilament comprises a core wire and a high polymer layer which is coated outside the core wire through dipping treatment, wherein the fineness of the core wire is 100D, the diameter of the inorganic nonmetallic fiber reinforced monofilament is 0.06mm, the core wire is a filament of basalt fiber, and the outer high polymer layer is a water-based polyurethane resin layer.
The overall procedure for the preparation of the reinforcing monofilaments is essentially the same as in example 1, with the following different relevant process parameters:
the unwinding linear speed in the step 1 is 15 m/min;
in step 2, hot water with temperature of 45 ℃ is selected for cleaning
In the step 3, the temperature of the oven is 130 ℃, and the drying time is 50 seconds;
and (3) carrying out a step of dipping the dried filaments into a sol pool 14, and conveying the dried and cleaned filaments into a sol pool 14, wherein the sol pool 14 contains silica sol or aluminum sol, the concentration of the silica sol or aluminum sol is 20%, and the dipping treatment time is 0.06 seconds.
In the step 4, the mass concentration of the aqueous polyurethane emulsion is 30% during the filament dipping treatment, and the dipping treatment time is 0.2 seconds;
the shape of the regular hole in the step 5 is round, the aperture is 0.1mm,
in the step 6, the pre-baking temperature is 90 ℃, and the pre-baking time is 50 seconds;
step 7, drying at 130 ℃ for 50 seconds;
and 8, cooling, namely rapidly cooling the dried filaments in the step 7 by using a cold air nozzle, wherein the cold air speed is 0.7 m/s, and the cooling temperature is 15 ℃.
The coated wire prepared using the inorganic nonmetallic fiber reinforced monofilament described above is characterized essentially as in example 3, with the following parameters, partially different: the short fiber yarns adopted by the coating inner layer are acrylic short fiber yarns, the linear density is 30 inches, the twist coefficients are 320, the coating twist direction of the coating inner layer is Z twist, and the coating twist is 1000 twists/meter;
The filaments adopted by the coating outer layer are nylon filaments; the linear density of the nylon filaments is 150D, the twisting direction of the coating outer layer is opposite to that of the coating inner layer, and the coating twist is 1000 twists/m.
The method for preparing the coated wire is specifically implemented according to the following steps:
step I, the middle core part comprises high-strength low-elongation polyester filaments, and the fineness of the high-strength low-elongation polyester filaments is 400D
Step II, coating an inner layer, namely coating the core part by taking acrylic staple yarns as a coating inner layer; the linear density of the spun yarns is 30 inches; the twist coefficients are 320, the twisting direction is Z twisting, and the coating twist is 1000 twisting/m
And III, performing outer coating, namely performing outer coating on the yarns subjected to inner coating in the step II by adopting nylon filaments, wherein the linear density of the nylon filaments is 150D, the twisting direction is opposite to that of the inner coating, and the coating twist is 1000 twists/meter, so that the coated wire is prepared.
Example 5
The inorganic nonmetallic fiber reinforced monofilament comprises a core wire and a high polymer layer which is coated outside the core wire through dipping treatment, wherein the fineness of the core wire is 100D, the diameter of the inorganic nonmetallic fiber reinforced monofilament is 0.06mm, the core wire is a filament of basalt fiber, and the outer high polymer layer is a water-based polyurethane resin layer.
The overall procedure for the preparation of the reinforcing monofilaments is essentially the same as in example 4, with the following different relevant process parameters:
and (3) carrying out a step of dipping the dried filaments into a sol pool 14, and conveying the dried and cleaned filaments into a sol pool 14, wherein the sol pool 14 contains silica sol or aluminum sol, the concentration of the silica sol or aluminum sol is 50%, and the dipping treatment time is 0.4 seconds.
The coated wire prepared using the inorganic nonmetallic fiber reinforced monofilament described above is characterized essentially as in example 3, with the following parameters, partially different: the short fiber yarns adopted by the cladding inner layer are blended short fiber yarns of polyester and cotton, the linear density is 30 inches, the twist coefficients are 320, the cladding twist direction of the cladding inner layer is Z twist, and the cladding twist is 1000 twists/meter;
the filaments adopted by the coating outer layer are nylon filaments; the linear density of the nylon filaments is 150D, the twisting direction of the coating outer layer is opposite to that of the coating inner layer, and the coating twist is 1000 twists/m.
The method for preparing the coated wire is specifically implemented according to the following steps:
step I, the middle core part comprises high-strength low-elongation polyester filaments, and the fineness of the high-strength low-elongation polyester filaments is 400D
Step II, coating an inner layer, namely taking the blended spun yarns of polyester and cotton as a coating inner layer to coat the inner layer of the core part; the linear density of the blended spun yarn of the polyester and the cotton is 30 inches; the twist coefficients are 320, the twisting direction is Z twisting, and the coating twist is 1000 twisting/m
And III, performing outer coating, namely performing outer coating on the yarns subjected to inner coating in the step II by adopting nylon filaments, wherein the linear density of the nylon filaments is 150D, the twisting direction is opposite to that of the inner coating, and the coating twist is 1000 twists/meter, so that the coated wire is prepared.
Example 6
The inorganic nonmetallic fiber reinforced monofilament comprises a core wire and a high polymer layer which is coated outside the core wire through dipping treatment, wherein the fineness of the core wire is 100D, the diameter of the inorganic nonmetallic fiber reinforced monofilament is 0.06mm, the core wire is a filament of basalt fiber, and the outer high polymer layer is a water-based polyurethane resin layer.
The overall procedure for the preparation of the reinforcing monofilaments is essentially the same as in example 4, with the following different relevant process parameters:
and (3) carrying out a step of dipping the dried filaments into a sol pool 14, and conveying the dried and cleaned filaments into a sol pool 14, wherein the sol pool 14 contains silica sol or aluminum sol, the concentration of the silica sol or aluminum sol is 30%, and the dipping treatment time is 0.2 seconds.
The coated wire prepared using the inorganic nonmetallic fiber reinforced monofilament described above is characterized essentially as in example 3, with the following parameters, partially different: the short fiber yarns adopted by the cladding inner layer are blended short fiber yarns of polyester and high-strength PVA, the linear density is 30 inches, the twist coefficients are 320, the cladding twist direction of the cladding inner layer is Z twist, and the cladding twist is 1000 twists/meter;
the filaments adopted by the coating outer layer are nylon filaments; the linear density of the nylon filaments is 150D, the twisting direction of the coating outer layer is opposite to that of the coating inner layer, and the coating twist is 1000 twists/m.
The method for preparing the coated wire is specifically implemented according to the following steps:
step I, wherein the middle core part comprises ultra-high molecular weight polyethylene fibers, and the fineness of the ultra-high molecular weight polyethylene fibers is 400D
Step II, coating an inner layer, namely taking the blended spun yarn of polyester and high-strength PVA as a coating inner layer to coat the inner layer of the core part; the linear density of the blended spun yarn of the terylene and the high-strength PVA is 30 inches; the twist coefficients are 320, the twisting direction is Z twisting, and the coating twist is 1000 twisting/m
And III, performing outer coating, namely performing outer coating on the yarns subjected to inner coating in the step II by adopting nylon filaments, wherein the linear density of the nylon filaments is 150D, the twisting direction is opposite to that of the inner coating, and the coating twist is 1000 twists/meter, so that the coated wire is prepared.
In other embodiments, the kind of the staple fiber yarn used for the inner coating layer is not limited to the several types mentioned in the above embodiments, and may be replaced by, for example, one kind of pure spun yarn or a blend yarn of any two or more kinds of yarns selected from polyester, nylon, acrylic, cotton, ultra-high molecular weight polyethylene and high-strength PVA.
In other embodiments of the invention, the knitting needle density parameters are not limited to 13G as given in example 1, but 7G/10G/15G/18G may be used.
According to the inorganic non-metal fiber reinforced monofilament, the coated wire and the preparation method and application thereof, firstly, the inorganic non-metal fiber filaments are subjected to dipping treatment in the aqueous polyurethane emulsion to form a glue film layer on the surface of the inorganic non-metal fiber filaments, so that on one hand, breakage caused by direct friction of the inorganic non-metal fiber filaments is prevented, burrs generated after breakage of the inorganic non-metal fiber are reduced, and on the other hand, a certain amount of aqueous polyurethane emulsion is immersed in the filaments, so that the toughness of the inorganic non-metal fiber filaments is improved to a certain extent. In another preferred technical scheme of the invention, the silica sol or the aluminum sol is impregnated before the aqueous polyurethane emulsion is impregnated, and in the treatment, the silica sol and the aluminum sol form a film on the surface of the fiber and can enter gaps among the fibers, so that the cutting resistance of the filament can be further enhanced.
The treated inorganic nonmetallic fiber reinforced monofilament is matched with the ultra-high molecular weight polyethylene filament and/or the high-strength low-elongation polyester filament to prepare the coated yarn as the core yarn, on one hand, the two core yarns have very high strength and toughness and very good cutting resistance, on the other hand, the coated yarn is produced in a coating mode, so that the inorganic nonmetallic fiber is prevented from being in direct contact with a user, the wearing comfort is improved through an external coating layer, the double-layer coating is preferably adopted, the inner layer coating uses the staple fiber yarn and can be better wrapped with the core yarn, the core yarn is more tightly wrapped, the outer layer is coated with the chemical fiber filament, the problem that the staple fiber yarn is more haired is solved, the yarn surface is integrally smooth, and meanwhile, the filament is wrapped outside because the integral strength of the chemical fiber is better than that of the staple fiber yarn, and the durability is further improved in the use process.
As shown in Table 1, inorganic fibers represented by 100D and 200D common glass fibers and basalt fibers, and glass fiber reinforced monofilaments or basalt fiber monofilaments obtained by the preparation method of the monofilaments of the invention of 100D and 200D common glass fibers or basalt fibers are provided, and are respectively used as core filament inner packages 40 together with 400D ultra-high molecular weight polyethylene under the same process and parameters s Polyester yarns, and the obtained coated yarns are subjected to a cutting resistance test according to a knitted fabric woven by knitting needles at a density of 13/inch; in the test, the polymer adopted for preparing the reinforced monofilament is waterborne polyurethane resin, the adopted sol is silica sol, and the inorganic nonmetallic fiber is glass fiber and basalt fiberAs a representative example, the inorganic nonmetallic fiber in the present invention may be any other inorganic nonmetallic filament such as carbon fiber and boron fiber.
Wherein, as shown in items 1-3 in Table 1, item 1 is a knitted fabric which is prepared by taking 100D common glass fiber filaments and 400D ultra-high molecular weight polyethylene filaments as core filaments to prepare coated wires and weaving, and the cutting resistance grade can reach B grade; the 2 nd item is a knitting fabric which is formed by weaving 100D glass fiber, reinforced monofilament obtained by the monofilament preparation method of the invention and 400D ultra-high molecular weight polyethylene filament serving as core filament and coating yarn prepared according to the same process and parameters, and the cutting resistance grade can reach the B grade; the 3 rd item is a knitted fabric which is formed by weaving a reinforced monofilament obtained by the preparation method of the basalt fiber according to the invention and a 400D ultra-high molecular weight polyethylene filament serving as a core filament and a coating line prepared according to the same process and parameters, and the cut-resistant grade of the knitted fabric can reach C level, which also shows that the cut-resistant performance of the basalt fiber is superior to that of glass fiber, and in addition, the 1 st item, the 4 th item and the 7 th item in table 1 are respectively compared with the 2 nd item, the 5 th item and the 8 th item, so that the cut-resistant performance of the finally obtained knitted fabric is slightly lower than that of the knitted fabric adopting common inorganic fiber, but the cut-resistant grade is in the same grade, but the product is found by testing, compared with the 1 st item, the 4 th item and the 7 th item, the knitted fabric has good wearing comfort, and solves the technical problem that the cut-resistant knitted fabric is easy to produce itching feeling.
Comparing the test results of items 4 to 6 in table 1, it can be seen that when the reinforced monofilament obtained after the aqueous polyurethane emulsion impregnation treatment is used to prepare the coated yarn, the same level of cutting resistance of the knitted fabric obtained by the same coating and weaving process as that of the common glass fiber can be maintained, but the problems of breakage caused by friction of the glass fiber filament and itching caused by contact with human body are solved, and the wearing comfort of the woven product is improved. Further as shown in item 6, if the silica sol impregnation and the aqueous polyurethane emulsion impregnation treatment are adopted at the same time, the cutting grade of the product is improved from the C grade to the D grade, and the cutting resistance of the product is improved by one cutting resistant grade.
Similarly, comparing the test results of items 7 to 9 in table 1, it can be seen that, when the reinforced monofilament obtained by dipping treatment of the aqueous polyurethane emulsion is used as the raw material to prepare the coated yarn, the same level of cutting resistance of the knitted fabric obtained by the same coating and weaving process as that of the common glass fiber can be maintained, but the problems that the glass fiber filament is broken due to friction and the contact with human body generates itching feeling are solved, and the wearing comfort of the woven product is improved. Further as shown in item 9, if the silica sol impregnation and the aqueous polyurethane emulsion impregnation treatment are adopted at the same time, the cutting grade of the product is improved from the C grade to the D grade, and the cutting resistance of the product is improved by one cutting resistant grade.
In addition, from the above experiment, it can be seen that the cut resistance of the coated yarn knitted fabric prepared from the glass fiber reinforced monofilament or basalt fiber monofilament obtained after the aqueous polyurethane emulsion impregnation treatment is slightly reduced (but still at the same cut resistance level) compared with that of the common glass fiber or basalt fiber coated yarn knitted fabric, because when the knife edge is pressed onto the yarn surface of the fabric, the yarn is extruded first, the compression deformation of the reinforced monofilament is not as fast as that of the common inorganic fiber multifilament, and the fiber contacting the knife edge part is easily crushed to cause a phenomenon that the cutting force is slightly reduced; however, it has been unexpectedly found in the applicant's experiments that when the inorganic nonmetallic fiber is impregnated with a sol such as a silica sol or an aluminum sol before the impregnation with the aqueous polymer solution, the cut resistance of the inorganic fiber-reinforced monofilament prepared by impregnating the inorganic nonmetallic fiber with the sol such as a silica sol or an aluminum sol is greatly improved, for example, the cut resistance of a knitted fabric prepared by using a coated wire of the monofilament under the same process conditions is significantly improved, because a large amount of silica particles or aluminum particles enter the gaps of the inorganic nonmetallic fiber and form a sol film on the surface of the fiber, and the silica particles or the aluminum particles enhance the cut resistance of the inorganic nonmetallic fiber.
TABLE 1 results of cutting resistance test of products prepared with inorganic nonmetallic fiber coated wire
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The coated wire prepared from the inorganic nonmetallic fiber reinforced monofilament is characterized by comprising a core part and a coating layer coated outside the core part, wherein the core part comprises the inorganic nonmetallic fiber reinforced monofilament and simultaneously comprises ultrahigh molecular weight polyethylene filaments and/or high-strength low-elongation polyester filaments, the monofilaments and the filaments of the core part are arranged in parallel, the coating layer comprises a coating inner layer and a coating outer layer, the coating inner layer is coated by adopting short fiber yarns, and the coating outer layer is coated by adopting filaments;
the inorganic nonmetallic fiber reinforced monofilament comprises a core wire and a high polymer layer which is coated outside the core wire through dipping treatment, wherein the core wire is a filament of glass fiber or basalt fiber, the outer high polymer layer is a water-based polyurethane resin layer, the fineness of the core wire is 50-200D, the diameter of the inorganic nonmetallic fiber reinforced monofilament is 0.02-0.10mm,
The device for preparing the inorganic nonmetallic fiber reinforced monofilament comprises: the continuous filament unwinding device comprises a fever reducing roller, a cleaning pool, a dipping pool, a shaping hole, a pre-baking device, an oven and a winding roller, wherein the fever reducing roller is used for unwinding filaments of glass fibers or basalt fibers, the cleaning pool is positioned at the downstream of the unwinding roller, one side of the bottom of the cleaning pool is provided with a water outlet, the upper part of the other side of the bottom of the cleaning pool is provided with a water inlet, a squeezing roller acting on the filaments is arranged above the liquid level of the cleaning pool, the filaments vertically enter the oven after being squeezed, the filaments after being dried by the oven are dipped in the dipping pool, a first tension wheel is arranged in the dipping pool, the filaments after being dipped are vertically and backwardly conveyed to the shaping hole positioned at the downstream of the dipping pool through the first tension wheel, the dipped filaments after being subjected to the shaping hole sequentially enter the pre-baking device and the oven, a cold air nozzle used for cooling the filaments is arranged at the filament outlet of the oven, the winding roller and the unwinding roller are respectively driven by the winding roller, and the cold air speed of the cold air of the winding roller is the same as that of the cold air line unwinding roller;
the preparation method of the inorganic nonmetallic fiber reinforced monofilament specifically comprises the following steps:
Step 1, unwinding filaments, namely actively unwinding filaments of glass fibers or basalt fibers with the speed of 50-200D through an unwinding roller, wherein the linear speed of unwinding is 4-20 m/min;
step 2, cleaning the filaments, conveying the filaments of the glass fibers or the basalt fibers unwound in the step 1 into a cleaning tank in an inclined manner, immersing the filaments in water in parallel, cleaning the surfaces of the filaments by using hot water at the temperature of 40-60 ℃, vertically pulling the filaments away from the liquid level, and removing surface adhesion water by using a squeeze roller;
step 3, drying the filaments, namely conveying the filaments cleaned in the step 2 to an oven for drying, wherein the temperature of the oven is 100-160 ℃, and the drying time is 30-60 seconds;
step 4, filament impregnation treatment, namely conveying the filaments treated in the previous step into a gum dipping tank, wherein gum dipping Chi Zhongzhuang is provided with aqueous polyurethane emulsion, the mass concentration of the aqueous polyurethane emulsion is 20-50%, the impregnation treatment time is 0.06-0.4 seconds, and the filament tension during gum dipping is 0.3-1.0N;
step 5, guiding the filaments immersed in the step 4 vertically upwards through a tension wheel, and then feeding the filaments into a shaping hole, wherein the shaping hole is round or approximately round, and the aperture is 0.03-0.15mm;
step 6, pre-baking the shaped filament obtained in the step 5, wherein the temperature is 60-100 ℃ and the pre-baking time is 30-60 seconds;
Step 7, drying, namely conveying the filaments pre-dried in the step 6 into a drying oven at the temperature of 100-160 ℃ for 30-60 seconds;
step 8, cooling, namely rapidly cooling the filaments dried in the step 7 by using a cold air nozzle, wherein the cold air speed is 0.5-1 m/s, and the cooling temperature is 5-20 ℃;
and 9, winding and forming the cooled filaments in the step 8 by a winding roller.
2. The coated wire of claim 1, wherein the apparatus further comprises a sol tank, the sol tank is located upstream of the dipping tank, a second tension wheel is arranged in the sol tank, and the filaments after being subjected to sol Chi Jinzi sol are vertically and backwardly fed into the dipping tank.
3. The coated wire prepared from inorganic nonmetallic fiber reinforced monofilament according to claim 2, wherein the step 3 and the step 4 further comprise a step of impregnating the sol, wherein the step of impregnating the sol is performed by conveying the dried and washed filament into a sol pool, the concentration of the sol Chi Chengyou silica sol or aluminum sol is 20-50%, and the impregnation treatment time is 0.06-0.4 seconds.
4. The coated wire prepared from inorganic nonmetallic fiber reinforced monofilament as claimed in claim 1, wherein the pore diameter of the shaped holes is 0.05-0.1mm.
5. The coated wire prepared from inorganic nonmetallic fiber reinforced monofilaments of claim 1, wherein the fineness of the ultrahigh molecular weight polyethylene filaments and the fineness of the high-strength low-elongation polyester filaments are both 50-400 d.
6. The covered wire according to claim 1, wherein the short fiber yarn adopted by the covered inner layer is selected from one pure spun short fiber yarn or blended short fiber yarns of any two or more of terylene, chinlon, acrylon, cotton, ultra-high molecular weight polyethylene or high strength PVA; filaments adopted by the coating outer layer are nylon filaments and/or polyester filaments; the linear density of the pure spun staple yarn or the blended staple yarn is 10-40 inches, the twist coefficient is 240-320, the cladding twisting direction of the cladding inner layer is S twisting or Z twisting, and the cladding twisting degree is 400-1200 twisting/meter; the linear density of the nylon filaments and/or the polyester filaments is 50-150D, the twisting direction of the coating outer layer is opposite to the twisting direction of the coating inner layer, and the coating twisting degree is 400-1200 twists/meter.
7. A method of producing a covered wire according to claim 1, characterized in that it is carried out in particular according to the following steps:
Step I, feeding a core, wherein the core comprises the inorganic nonmetallic fiber reinforced monofilament and simultaneously comprises ultra-high molecular weight polyethylene filaments and/or high-strength low-elongation polyester filaments, and the monofilament and the filaments of the core are fed in parallel;
step II, coating an inner layer, namely coating the inner layer of a core part by taking one pure spun staple yarn or more than two blended staple yarns selected from terylene, chinlon, acrylon, cotton, ultra-high molecular weight polyethylene or high-strength PVA as a coating inner layer;
and III, performing outer coating, namely performing outer coating on the yarns subjected to inner coating in the step II by adopting nylon filaments and/or polyester filaments, so as to obtain the coated yarns.
8. The method according to claim 7, wherein in the step I, the fineness of the ultra-high molecular weight polyethylene filaments and/or the high-strength low-elongation polyester filaments is 50-400D; in the step II, the linear density of the pure spun staple yarn or the blended staple yarn is 10-40 English count, and the twist coefficient is 240-320; in the step III, the linear density of the nylon filaments and/or the polyester filaments is 50-150D.
9. The method of producing a covered wire according to claim 8, wherein in the step II, the covered inner layer has a covered twist direction of S-twist or Z-twist and a covered twist of 400-1200 twist/m; in the step III, the twisting direction of the coating outer layer is opposite to the twisting direction of the coating inner layer, and the coating twist is 400-1200 twists/m.
10. Use of the covered wire according to any one of claims 1-6 for the preparation of a cut resistant glove liner or for the preparation of a cut resistant fabric, said prepared cut resistant glove liner being knitted on a 7G/10G/13G/15G/18G glove knitting machine to produce a cut resistant glove liner; the preparation of the anti-cutting fabric is as follows: the cutting-resistant fabric is woven on a knitting machine or a weaving machine, and the cutting resistance of the prepared cutting-resistant glove liner or the cutting-resistant fabric is tested by adopting EN388 standard, and the cutting resistance grade reaches above B grade.
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| CN101671896B (en) * | 2009-09-29 | 2011-06-22 | 宋朋泽 | Composite covered yarn, and manufacturing method and use thereof |
| CN104963052A (en) * | 2015-07-10 | 2015-10-07 | 上海兰邦工业纤维有限公司 | Composite yarn for high-cutting-resisting-degree fabric |
| CN107090634A (en) * | 2017-06-28 | 2017-08-25 | 浙江蒙泰特种材料科技有限公司 | Cut resistant yarn and the resistance to stabbing lining of cut resistant |
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