CN115142190B - Preparation method of spring wrapping cloth - Google Patents
Preparation method of spring wrapping cloth Download PDFInfo
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- CN115142190B CN115142190B CN202210782926.5A CN202210782926A CN115142190B CN 115142190 B CN115142190 B CN 115142190B CN 202210782926 A CN202210782926 A CN 202210782926A CN 115142190 B CN115142190 B CN 115142190B
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- wrapping cloth
- needling
- spring wrapping
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- 239000004744 fabric Substances 0.000 title claims abstract description 54
- 238000002360 preparation method Methods 0.000 title claims abstract description 23
- 239000000835 fiber Substances 0.000 claims abstract description 61
- 239000004743 Polypropylene Substances 0.000 claims abstract description 58
- -1 polypropylene Polymers 0.000 claims abstract description 46
- 229920001155 polypropylene Polymers 0.000 claims abstract description 46
- 238000009960 carding Methods 0.000 claims abstract description 23
- 239000003607 modifier Substances 0.000 claims abstract description 23
- 238000001125 extrusion Methods 0.000 claims abstract description 17
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 16
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000843 powder Substances 0.000 claims abstract description 16
- 239000010457 zeolite Substances 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 14
- 230000002787 reinforcement Effects 0.000 claims abstract description 13
- 239000000155 melt Substances 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims abstract description 3
- 238000002156 mixing Methods 0.000 claims description 19
- 238000005520 cutting process Methods 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 16
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 15
- 238000000498 ball milling Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 229920000742 Cotton Polymers 0.000 claims description 14
- 238000012986 modification Methods 0.000 claims description 13
- 230000004048 modification Effects 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 10
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 10
- 239000000783 alginic acid Substances 0.000 claims description 10
- 235000010443 alginic acid Nutrition 0.000 claims description 10
- 229920000615 alginic acid Polymers 0.000 claims description 10
- 229960001126 alginic acid Drugs 0.000 claims description 10
- 150000004781 alginic acids Chemical class 0.000 claims description 10
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 10
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 10
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 10
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 5
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical compound OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 claims description 5
- IMQLKJBTEOYOSI-UHFFFAOYSA-N Phytic acid Natural products OP(O)(=O)OC1C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C(OP(O)(O)=O)C1OP(O)(O)=O IMQLKJBTEOYOSI-UHFFFAOYSA-N 0.000 claims description 5
- 239000002202 Polyethylene glycol Substances 0.000 claims description 5
- 239000001110 calcium chloride Substances 0.000 claims description 5
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 230000008014 freezing Effects 0.000 claims description 5
- 238000007710 freezing Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000005098 hot rolling Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229940068041 phytic acid Drugs 0.000 claims description 5
- 235000002949 phytic acid Nutrition 0.000 claims description 5
- 239000000467 phytic acid Substances 0.000 claims description 5
- 229920001223 polyethylene glycol Polymers 0.000 claims description 5
- 235000010482 polyoxyethylene sorbitan monooleate Nutrition 0.000 claims description 5
- 229920000053 polysorbate 80 Polymers 0.000 claims description 5
- 229910052582 BN Inorganic materials 0.000 claims description 4
- 230000032683 aging Effects 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 239000004745 nonwoven fabric Substances 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
-
- 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
-
- 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
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G1/00—Severing continuous filaments or long fibres, e.g. stapling
- D01G1/02—Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form
- D01G1/04—Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form by cutting
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/155—Halides of elements of Groups 2 or 12 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/10—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing oxygen
- D06M13/165—Ethers
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/244—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus
- D06M13/282—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing sulfur or phosphorus with compounds containing phosphorus
- D06M13/292—Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/20—Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Springs (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a preparation method of spring wrapping cloth, which belongs to the technical field of non-woven fabrics, and comprises the steps of melt extrusion, drafting, preparation of modified polypropylene short fibers, opening and cleaning, carding, lapping, needling reinforcement and aftertreatment; the melt extrusion is carried out, PP slices, modifier and nano zeolite powder are dried and mixed, and then the mixture is introduced into a screw extruder for melt extrusion, so as to obtain melt; the preparation method of the invention can improve the ageing resistance of the spring wrapping cloth and also can improve the mechanical property and corrosion resistance of the spring wrapping cloth.
Description
Technical Field
The invention relates to the technical field of non-woven fabrics, in particular to a preparation method of spring wrapping cloth.
Background
The raw material of the spring wrapping cloth is generally 100% polypropylene non-woven fabric, but the following problems exist in using 100% polypropylene non-woven fabric: along with the increase of the commodity price of the global bulk commodity at present, the cost of raw material polypropylene is increased; the polypropylene fiber is a byproduct of petroleum, belongs to non-renewable resources, and is not beneficial to developing the sustainable development concept of the current industry; 100% pure PP polypropylene non-woven fabrics are easy to age and have short service life.
In order to solve the problems, the most commonly used method at present is to mix other ageing-resistant fibers in the preparation of the spring wrapping cloth, but after mixing other fibers, the ageing resistance can be improved, the service life can be prolonged, but the mechanical property and the corrosion resistance of the spring wrapping cloth can be reduced, and at present, no method for improving the ageing resistance of the spring wrapping cloth and the mechanical property and the corrosion resistance of the spring wrapping cloth is available.
Disclosure of Invention
Aiming at the problems, the invention provides the preparation method of the spring wrapping cloth, which can improve the ageing resistance of the spring wrapping cloth and the mechanical property and the corrosion resistance of the spring wrapping cloth.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a method for preparing the spring wrapping cloth comprises the steps of melt extrusion, drafting, preparing modified polypropylene short fibers, opening, carding, lapping, needling and strengthening, and post-treatment.
The melt extrusion is carried out, PP slices, modifier and nano zeolite powder are dried and mixed, and then the mixture is introduced into a screw extruder for melt extrusion, so as to obtain melt;
the temperature of five heating areas of the screw extruder is respectively set to be 200-210 ℃, 210-220 ℃, 220-230 ℃, 230-240 ℃ and 240-250 ℃;
the particle size of the nano zeolite powder is 300-350nm;
wherein the weight ratio of the PP slice to the modifier to the nano zeolite powder is 45-48:3-5:2-5;
the preparation method of the modifier comprises the following steps: mixing zinc stearate, sodium dodecyl benzene sulfonate, water white hydrogenated rosin, alginic acid and nano boron nitride, putting into a ball mill, performing ball milling, controlling the ball-material ratio during ball milling to be 10-15:1, rotating at 300-350rpm for 30-40min, after ball milling, putting into a temperature of minus 40 ℃ to minus 35 ℃ for freezing treatment for 45-50min, and then recovering to room temperature to obtain a modifier;
the grain diameter of the nanometer boron nitride is 200-300nm;
wherein the weight ratio of zinc stearate to sodium dodecyl benzene sulfonate to water white hydrogenated rosin to alginic acid to nano boron nitride is 5-7:2-3:0.2-0.5:3-5:12-15.
The drafting is carried out, and after the melt is drafted, the polypropylene filament is obtained;
the preparation of the modified polypropylene short fiber comprises the steps of immersing polypropylene filaments in surface modification liquid at 40-45 ℃ for 45-50min, and cutting the fibers into 75-90mm by a cutting machine to obtain the modified polypropylene short fiber;
wherein the mass ratio of the polypropylene filaments to the surface modifying liquid is 2:3-3.2;
the surface modification liquid comprises the following components in parts by weight: 80-85 parts of deionized water, 6-8 parts of polyethylene glycol 400,2-4 parts of phytic acid, 1-3 parts of calcium chloride and 0.5-1 part of tween 80;
the fineness of the modified polypropylene short fiber is 2.5-3D.
And the opening and cleaning process comprises the steps of mixing the modified polypropylene short fibers and the 2.5D regenerated PET short fibers with the length of 51-64mm according to the weight ratio of 45-50:50-55, then grabbing cotton, and then opening and mixing to obtain the opened short fibers.
The carding is carried out, the short fibers after opening are introduced into a carding machine for carding, and the fiber feeding quantity of the carding machine is controlled to be 30-40g/m 2 The linear speed is 50-55%, and the carded short fiber is obtained.
And (3) lapping, namely, putting the carded short fibers into a lapping machine for lapping to obtain a cotton net, and controlling the lapping layer number to be 5-6.
The needling reinforcement is carried out by introducing the cotton net into a needling machine, the working width in the needling machine process is controlled to be 4-5m, the needling density is 4000-5000 pieces/m, the needling frequency is 600-900 times/min, the production speed is 16-22m/min, and the needling reinforcement is carried out by tentering hot rolling to obtain the primary spring wrapping cloth.
And (3) carrying out post-treatment, namely carrying out microcurrent treatment on the primary spring wrapping cloth, controlling microcurrent in the microcurrent treatment to be 15-20uA, and carrying out cutting according to the requirement after the microcurrent treatment is finished, wherein the time is 50-55min, so as to obtain the spring wrapping cloth.
Compared with the prior art, the invention has the beneficial effects that:
(1) The preparation method of the spring wrapping cloth can improve the mechanical property of the spring wrapping cloth, wherein the breaking strength-MD of the prepared spring wrapping cloth is 43.5-44.9Lbf, the breaking strength-CD is 46.8-47.8Lbf, the breaking elongation-MD is 60.6-61.8%, the breaking elongation-CD is 72.2-73.9%, the tearing strength-MD is 20.8-22.5Lbf, and the tearing strength-CD is 18.4-19.5Lbf;
(2) According to the preparation method of the spring wrapping cloth, the ageing resistance of the spring wrapping cloth can be improved, the prepared spring wrapping cloth is arranged at the temperature of 30-35 ℃, after the prepared spring wrapping cloth is irradiated under an ultraviolet lamp for 3 months, the breaking strength-MD is 43.2-44.2Lbf, the breaking strength-CD is 46.5-47.5Lbf, the breaking elongation-MD is 60.3-61.6%, the breaking elongation-CD is 71.8-73.5%, the tearing strength-MD is 20.6-22.3Lbf, and the tearing strength-CD is 18.0-19.1Lbf;
(3) According to the preparation method of the spring wrapping cloth, the corrosion resistance of the spring wrapping cloth can be improved, the prepared spring wrapping cloth is arranged in a hydrochloric acid aqueous solution with the mass fraction of 5% for soaking for 1 month, the breaking strength-MD is 43.1-44.5Lbf, the breaking strength-CD is 46.5-47.6Lbf, the breaking elongation-MD is 60.2-61.4%, the breaking elongation-CD is 72.0-73.5%, the tearing strength-MD is 20.4-22.1Lbf, and the tearing strength-CD is 18.1-19.2Lbf; after the prepared spring package is soaked in a sodium hydroxide aqueous solution with the mass fraction of 5% for 1 month, the breaking strength-MD is 43.1-44.4Lbf, the breaking strength-CD is 46.2-47.2Lbf, the breaking elongation-MD is 60.2-61.3%, the breaking elongation-CD is 71.7-73.2%, the tearing strength-MD is 20.2-22.0Lbf, and the tearing strength-CD is 18.0-18.9Lbf.
Detailed Description
Specific embodiments of the present invention will now be described in order to provide a clearer understanding of the technical features, objects and effects of the present invention.
Example 1
A preparation method of a spring wrapping cloth specifically comprises the following steps:
1. melt extrusion: drying and mixing PP slices, a modifier and nano zeolite powder, and introducing the mixture into a screw extruder for melt extrusion to obtain a melt;
the temperature of five heating areas of the screw extruder is respectively set to 200 ℃, 210 ℃, 220 ℃, 230 ℃ and 240 ℃;
the particle size of the nano zeolite powder is 300nm;
wherein the weight ratio of the PP slice to the modifier to the nano zeolite powder is 45:3:2;
the preparation method of the modifier comprises the following steps: mixing zinc stearate, sodium dodecyl benzene sulfonate, water white hydrogenated rosin, alginic acid and nano boron nitride, then placing the mixture into a ball mill for ball milling, controlling the ball-material ratio during ball milling to be 10:1, the rotating speed to be 300rpm, the time to be 30min, placing the mixture into a-40 ℃ for freezing treatment for 45min after ball milling is finished, and then returning the mixture to room temperature to obtain the modifier;
the grain diameter of the nanometer boron nitride is 200nm;
wherein the weight ratio of zinc stearate to sodium dodecyl benzene sulfonate to water white hydrogenated rosin to alginic acid to nano boron nitride is 5:2:0.2:3:12.
2. Drawing: drawing the melt to obtain polypropylene filaments;
3. preparing modified polypropylene short fibers: immersing polypropylene filaments into surface modification liquid at 40 ℃ for 45min, and cutting the fibers into 75mm by a cutting machine to obtain modified polypropylene short fibers;
wherein the mass ratio of the polypropylene short fiber to the surface modifying liquid is 2:3;
the surface modification liquid comprises the following components in parts by weight: 80 parts of deionized water, 6 parts of polyethylene glycol 400,2 parts of phytic acid, 1 part of calcium chloride and 0.5 part of tween 80;
the fineness of the modified polypropylene short fiber is 2.5D.
4. Clearing: mixing the modified polypropylene short fiber and the 2.5D PET short fiber with the length of 51mm according to the weight ratio of 50:50, then grabbing cotton, opening and mixing to obtain the opened short fiber.
5. Carding: introducing the opened short fibers into a carding machine for carding, and controlling the fiber feeding quantity of the carding machine to be 30g/m 2 The linear velocity was 50%, and a carded staple was obtained.
6. Lapping: and (3) introducing the carded short fibers into a lapping machine for lapping to obtain a cotton net, and controlling the lapping layer number to be 5.
7. And (5) needling and reinforcing: and (3) introducing the cotton net into a needling machine for needling reinforcement, controlling the working width of the needling machine to be 4m, needling density to 4000 pieces/m, needling frequency to 600 times/min, and the production speed to 16m/min, and performing tentering hot rolling to obtain the primary spring wrapping cloth.
8. Post-treatment: and (3) carrying out microcurrent treatment on the primary spring wrapping cloth, controlling the microcurrent in the microcurrent treatment to be 15uA and the time to be 50min, and cutting according to the requirement after the microcurrent treatment is finished to obtain the spring wrapping cloth.
The gram weight of the spring wrapping cloth prepared in the embodiment is 74g/m 2 。
Example 2
A preparation method of a spring wrapping cloth specifically comprises the following steps:
1. melt extrusion: drying and mixing PP slices, a modifier and nano zeolite powder, and introducing the mixture into a screw extruder for melt extrusion to obtain a melt;
the temperature of five heating areas of the screw extruder is set to 205 ℃, 215 ℃, 225 ℃, 235 ℃ and 245 ℃ respectively;
the particle size of the nano zeolite powder is 320nm;
wherein the weight ratio of the PP slice to the modifier to the nano zeolite powder is 47:4:3;
the preparation method of the modifier comprises the following steps: mixing zinc stearate, sodium dodecyl benzene sulfonate, water white hydrogenated rosin, alginic acid and nano boron nitride, then placing the mixture into a ball mill for ball milling, controlling the ball-material ratio during ball milling to be 12:1, the rotating speed to be 320rpm, the time to be 35min, placing the mixture into a-37 ℃ for freezing treatment for 47min after ball milling is finished, and then returning the mixture to room temperature to obtain the modifier;
the particle size of the nano boron nitride is 250nm;
wherein the weight ratio of zinc stearate to sodium dodecyl benzene sulfonate to water white hydrogenated rosin to alginic acid to nano boron nitride is 6:2.5:0.3:4:13.
2. Drawing: drawing the melt to obtain polypropylene filaments;
3. preparing modified polypropylene short fibers: immersing the polypropylene filaments into the surface modification liquid at 42 ℃ for 47min, and cutting the fibers into 80mm by a cutting machine to obtain modified polypropylene short fibers;
wherein the mass ratio of the polypropylene filaments to the surface modifying liquid is 2:3.1;
the surface modification liquid comprises the following components in parts by weight: 82 parts of deionized water, 7 parts of polyethylene glycol 400,3 parts of phytic acid, 2 parts of calcium chloride and 0.7 part of tween 80;
the fineness of the modified polypropylene short fiber is 2.7D.
4. Clearing: mixing the modified polypropylene short fibers with the 2.5D PET short fibers with the length of 60mm according to the weight ratio of 48:52, then grabbing cotton, opening and mixing to obtain the opened short fibers.
5. Carding: introducing the opened short fibers into a carding machine for carding, and controlling the fiber feeding quantity of the carding machine to be 35g/m 2 The linear velocity was 52%, and a carded staple was obtained.
6. Lapping: and (3) introducing the carded short fibers into a lapping machine for lapping to obtain a cotton net, and controlling the lapping layer number to be 5.
7. And (5) needling and reinforcing: the cotton net is fed into a needling machine for needling reinforcement, the working width in the needling machine process is controlled to be 4.5m, the needling density is 4500 pieces/m, the needling frequency is 800 times/min, the production speed is 20m/min, and the primary spring wrapping cloth is obtained after needling reinforcement and tentering hot rolling.
8. Post-treatment: and (3) carrying out microcurrent treatment on the primary spring wrapping cloth, controlling the microcurrent in the microcurrent treatment to be 17uA, and cutting according to the requirement after the microcurrent treatment is finished to obtain the spring wrapping cloth.
The gram weight of the spring wrapping cloth prepared in the embodiment is 75g/m 2 。
Example 3
A preparation method of a spring wrapping cloth specifically comprises the following steps:
1. melt extrusion: drying and mixing PP slices, a modifier and nano zeolite powder, and introducing the mixture into a screw extruder for melt extrusion to obtain a melt;
the temperature of five heating areas of the screw extruder is respectively set to 210 ℃, 220 ℃, 230 ℃, 240 ℃ and 250 ℃;
the particle size of the nano zeolite powder is 350nm;
wherein the weight ratio of the PP slice to the modifier to the nano zeolite powder is 48:5:5;
the preparation method of the modifier comprises the following steps: mixing zinc stearate, sodium dodecyl benzene sulfonate, water white hydrogenated rosin, alginic acid and nano boron nitride, then placing the mixture into a ball mill for ball milling, controlling the ball-material ratio during ball milling to be 15:1, the rotating speed to be 350rpm, the time to be 40min, placing the mixture into a-35 ℃ for freezing treatment for 50min after ball milling, and then returning to room temperature to obtain the modifier;
the grain diameter of the nanometer boron nitride is 300nm;
wherein the weight ratio of zinc stearate to sodium dodecyl benzene sulfonate to water white hydrogenated rosin to alginic acid to nano boron nitride is 7:3:0.5:5:15.
2. Drawing: drawing the melt to obtain polypropylene filaments;
3. preparing modified polypropylene short fibers: immersing polypropylene filaments into surface modification liquid at 45 ℃ for 50min, and cutting the fibers into 90mm by a cutting machine to obtain modified polypropylene short fibers;
wherein the mass ratio of the polypropylene filaments to the surface modifying liquid is 2:3.2;
the surface modification liquid comprises the following components in parts by weight: 85 parts of deionized water, 8 parts of polyethylene glycol 400,4 parts of phytic acid, 3 parts of calcium chloride and 1 part of tween 80;
the fineness of the modified polypropylene short fiber is 3D.
4. Clearing: mixing the modified polypropylene short fibers with 2.5D PET short fibers with the length of 64mm according to the weight ratio of 45:55, then grabbing cotton, opening and mixing to obtain the opened short fibers.
5. Carding: introducing the opened short fibers into a carding machine for carding, and controlling the fiber feeding quantity of the carding machine to be 40g/m 2 The linear velocity was 55%, and a carded staple was obtained.
6. Lapping: and (3) introducing the carded short fibers into a lapping machine for lapping to obtain a cotton net, and controlling the lapping layer number to be 6.
7. And (5) needling and reinforcing: the cotton net is fed into a needling machine for needling reinforcement, the working width in the needling machine process is controlled to be 5m, the needling density is 5000 pieces/m, the needling frequency is 900 times/min, the production speed is 22m/min, the needling reinforcement is performed, and the primary spring wrapping cloth is obtained through tentering hot rolling.
8. Post-treatment: and (3) carrying out microcurrent treatment on the primary spring wrapping cloth, controlling the microcurrent in the microcurrent treatment to be 20uA and the time to be 55min, and cutting according to the requirement after the microcurrent treatment is finished to obtain the spring wrapping cloth.
The gram weight of the spring wrapping cloth prepared in this example was 74.5g/m 2 。
Comparative example 1
The same spring package as in example 1 was prepared with the following differences: the modifier is omitted from the step 1 of melt extrusion.
The gram weight of the spring wrapping cloth prepared in the embodiment is 72g/m 2 。
Comparative example 2
The same spring package as in example 1 was prepared with the following differences: and 3, omitting the step of immersing the polypropylene filaments into the surface modification liquid in the step of preparing the modified polypropylene short fibers, namely directly cutting the polypropylene filaments into 75mm fibers by a cutting machine to obtain the modified polypropylene short fibers.
The gram weight of the spring wrapping cloth prepared in this example was 75.5g/m 2 。
Comparative example 3
The same spring package as in example 1 was prepared with the following differences: and omitting the step 8 of post-treatment, namely directly cutting the primary spring wrapping cloth obtained in the step 7 of needling reinforcement according to the requirement to obtain the spring wrapping cloth.
The gram weight of the spring wrapping cloth prepared in the embodiment is 73g/m 2 。
The mechanical properties of the spring packs prepared in examples 1-3 and comparative examples 1-3 were tested as follows:
the spring packs prepared in examples 1 to 3 and comparative examples 1 to 3 were placed at 30 to 35℃and irradiated under an ultraviolet lamp for 3 months, the power of the ultraviolet lamp was controlled to 80W, the wavelength was 300nm, and the mechanical properties were tested after the irradiation was completed, and the test results were as follows:
the spring packs prepared in examples 1 to 3 and comparative examples 1 to 3 were placed in 5% by mass aqueous hydrochloric acid solution and immersed for 1 month, and the mechanical properties were tested as follows:
the spring packs prepared in examples 1 to 3 and comparative examples 1 to 3 were immersed in 5% by mass aqueous sodium hydroxide solution for 1 month, and the mechanical properties were tested as follows:
the percentages used in the present invention are mass percentages unless otherwise indicated.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The preparation method of the spring wrapping cloth is characterized by comprising the steps of melt extrusion, drawing, preparing modified polypropylene short fibers, opening, carding, lapping, needling reinforcement and post-treatment;
the opening and cleaning process comprises the steps of mixing modified polypropylene short fibers and 2.5D regenerated PET short fibers with the length of 51-64mm according to the weight ratio of 45-50:50-55, then grabbing cotton, opening and mixing to obtain the opened short fibers;
the melt extrusion is carried out, PP slices, modifier and nano zeolite powder are dried and mixed, and then the mixture is introduced into a screw extruder for melt extrusion, so as to obtain melt;
in the melt extrusion, the weight ratio of the PP slice to the modifier to the nano zeolite powder is 45-48:3-5:2-5; the particle size of the nano zeolite powder is 300-350nm;
the preparation method of the modifier comprises the following steps: mixing zinc stearate, sodium dodecyl benzene sulfonate, water white hydrogenated rosin, alginic acid and nano boron nitride, putting into a ball mill, performing ball milling, controlling the ball-material ratio during ball milling to be 10-15:1, rotating at 300-350rpm for 30-40min, after ball milling, putting into a temperature of minus 40 ℃ to minus 35 ℃ for freezing treatment for 45-50min, and then recovering to room temperature to obtain a modifier;
in the preparation of the modifier, the weight ratio of zinc stearate to sodium dodecyl benzene sulfonate to water white hydrogenated rosin to alginic acid to nano boron nitride is 5-7:2-3:0.2-0.5:3-5:12-15;
the preparation of the modified polypropylene short fiber comprises the steps of immersing polypropylene filaments in surface modification liquid at 40-45 ℃ for 45-50min, and cutting the fibers into 75-90mm by a cutting machine to obtain the modified polypropylene short fiber; wherein the mass ratio of the polypropylene filaments to the surface modifying liquid is 2:3-3.2;
the surface modification liquid comprises the following components in parts by weight: 80-85 parts of deionized water, 6-8 parts of polyethylene glycol 400,2-4 parts of phytic acid, 1-3 parts of calcium chloride and 0.5-1 part of tween 80;
the fineness of the modified polypropylene short fiber is 2.5-3D;
and (3) carrying out post-treatment, namely carrying out microcurrent treatment on the primary spring wrapping cloth, controlling microcurrent in the microcurrent treatment to be 15-20uA, and carrying out cutting according to the requirement after the microcurrent treatment is finished, wherein the time is 50-55min, so as to obtain the spring wrapping cloth.
2. The method of producing a spring wrapping cloth according to claim 1, wherein the five heating areas of the screw extruder are set to 200-210 ℃, 210-220 ℃, 220-230 ℃, 230-240 ℃, 240-250 ℃, respectively;
the grain diameter of the nanometer boron nitride is 200-300nm.
3. The method for preparing spring package according to claim 1, wherein the carding is carried out by feeding the opened short fibers into a carding machine for carding, and controlling the fiber feeding amount of the carding machine to be 30-40g/m 2 The linear speed is 50-55%, and the carded short fiber is obtained.
4. The method for preparing the spring wrapping cloth according to claim 1, wherein the needling reinforcement is performed by introducing a cotton web into a needling machine, performing needling reinforcement, controlling the working width in the needling machine to be 4-5m, the needling density to be 4000-5000 pieces/m, the needling frequency to be 600-900 times/min, the production speed to be 16-22m/min, and performing tentering hot rolling on the needled reinforcement to obtain the primary spring wrapping cloth.
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| CN105696350A (en) * | 2016-03-28 | 2016-06-22 | 西南大学 | Method for preparing functional cotton fabric by complexing phytic acid through divalent calcium ions |
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| CN112726022B (en) * | 2021-01-07 | 2022-09-09 | 俊富非织造材料(肇庆)有限公司 | Preparation method of polypropylene-polyethylene composite non-woven fabric |
| CN112981701A (en) * | 2021-03-31 | 2021-06-18 | 肇庆浚荣非织造材料有限公司 | Multilayer melt-blown non-woven fabric and preparation method thereof |
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