CN115142190A - Preparation method of spring wrapping cloth - Google Patents

Preparation method of spring wrapping cloth Download PDF

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Publication number
CN115142190A
CN115142190A CN202210782926.5A CN202210782926A CN115142190A CN 115142190 A CN115142190 A CN 115142190A CN 202210782926 A CN202210782926 A CN 202210782926A CN 115142190 A CN115142190 A CN 115142190A
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Prior art keywords
preparation
spring
wrapping cloth
spring wrapping
short fiber
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CN202210782926.5A
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CN115142190B (en
Inventor
郑天翔
杨旭辉
陈傲立
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Junfu Nonwovens Zhaoqing Co ltd
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Junfu Nonwovens Zhaoqing Co ltd
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    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/42Non-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
    • D04H1/4282Addition polymers
    • D04H1/4291Olefin series
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01DMECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00Formation of filaments, threads, or the like
    • D01D5/08Melt spinning methods
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00General methods for the manufacture of artificial filaments or the like
    • D01F1/02Addition of substances to the spinning solution or to the melt
    • D01F1/10Other agents for modifying properties
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01FCHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/44Monocomponent 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
    • D01F6/46Monocomponent 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
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01GPRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G1/00Severing continuous filaments or long fibres, e.g. stapling
    • D01G1/02Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form
    • D01G1/04Severing continuous filaments or long fibres, e.g. stapling to form staple fibres not delivered in strand form by cutting
    • DTEXTILES; PAPER
    • D04BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04HMAKING 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
    • D04H1/00Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40Non-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
    • D04H1/44Non-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
    • D04H1/46Non-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
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00Treating 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
    • D06M11/07Treating 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
    • D06M11/11Treating 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
    • D06M11/155Halides of elements of Groups 2 or 12 of the Periodic Table
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/10Treating 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
    • D06M13/165Ethers
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/244Treating 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
    • D06M13/282Treating 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
    • D06M13/292Mono-, di- or triesters of phosphoric or phosphorous acids; Salts thereof
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06MTREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M2101/00Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16Synthetic fibres, other than mineral fibres
    • D06M2101/18Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/20Polyalkenes, polymers or copolymers of compounds with alkenyl groups bonded to aromatic groups
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/66Disintegrating 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, belonging to the technical field of non-woven fabrics, and the preparation method comprises the steps of melt extrusion, drafting, preparation of modified polypropylene short fibers, opening and cleaning, carding, lapping, needling reinforcement and post treatment; the melt extrusion is to dry and mix the PP slices, the modifier and the nano zeolite powder, and introduce the mixture into a screw extruder for melt extrusion to obtain a melt; the preparation method provided by the invention can improve the ageing resistance of the spring wrapping cloth and can also improve the mechanical property and corrosion resistance of the spring wrapping cloth.

Description

Preparation method of spring wrapping cloth
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 nonwoven fabric, but the use of 100% polypropylene nonwoven fabric has the following problems: with the increase of the price of the current global bulk commodity, the cost of the raw material polypropylene is increased; the polypropylene fiber is derived from petroleum byproducts, belongs to non-renewable resources and is not beneficial to developing the sustainable development concept of the current industry; the 100% pure PP polypropylene non-woven fabric is easy to age and short in service life.
In order to solve the problems and achieve resource recycling, the most common method at present is to mix other aging-resistant fibers in the preparation of the spring wrapping cloth, but after the other fibers are mixed, although the aging resistance can be improved and the service life can be prolonged, the mechanical property and the corrosion resistance of the spring wrapping cloth can be reduced, and at present, no method capable of improving the aging resistance and the mechanical property and the corrosion resistance of the spring wrapping cloth exists.
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 can also improve 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 preparation method of spring wrapping cloth comprises the steps of melt extrusion, drafting, modified polypropylene short fiber preparation, opening, carding, lapping, needling reinforcement and post-treatment.
The melt extrusion is to dry and mix the PP slices, the modifier and the nano zeolite powder, and to introduce the mixture into a screw extruder for melt extrusion to obtain a melt;
the temperatures of five heating zones of the screw extruder are 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 slices to the modifier to the nano zeolite powder is 45-48;
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 10-15, the rotating speed to be 300-350rpm, the time to be 30-40min, after the ball milling is finished, placing the mixture at the temperature of-40 ℃ to-35 ℃ for freezing treatment for 45-50min, and then recovering the mixture to room temperature to obtain a modifier;
the particle size of the nano boron nitride is 200-300nm;
wherein the weight ratio of zinc stearate, sodium dodecyl benzene sulfonate, water white hydrogenated rosin, alginic acid and nano boron nitride is (5-7).
The step of drafting, wherein the polypropylene filament is obtained after the melt is drafted;
the preparation method comprises the following steps of (1) soaking polypropylene filaments in a surface modification solution for 45-50min at 40-45 ℃, and cutting the fibers into 75-90mm by a cutting machine to obtain modified polypropylene staple fibers;
wherein the mass ratio of the polypropylene filament to the surface modification liquid is 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) opening, namely mixing the modified polypropylene short fiber with 2.5D regenerated PET short fiber with the length of 51-64mm according to the weight ratio of 45-50 to 55, then grabbing cotton, opening and mixing to obtain the opened short fiber.
The carding step, the opened short fibers are introduced into a carding machine for carding, and the fiber feeding amount 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, lapping the carded short fibers in a lapping machine to obtain a cotton net, and controlling the number of lapping layers to be 5-6.
And (3) the needling reinforcement, namely introducing the cotton net into a needling machine for needling reinforcement, controlling the working width of the needling machine to be 4-5m, the needle density to be 4000-5000 pieces/m, the needling frequency to be 600-900 times/min and the production speed to be 16-22m/min, and tentering and hot rolling the needling reinforcement to obtain the primary spring wrapping cloth.
And the post-treatment is to carry out micro-current treatment on the primary spring wrapping cloth, control the micro-current in the micro-current treatment to be 15-20uA and the time to be 50-55min, and cut according to the requirement after the micro-current treatment is finished 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, and the prepared spring wrapping cloth has the breaking strength-MD of 43.5-44.9Lbf, the breaking strength-CD of 46.8-47.8Lbf, the breaking elongation-MD of 60.6-61.8%, the breaking elongation-CD of 72.2-73.9%, the tearing strength-MD of 20.8-22.5Lbf and the tearing strength-CD of 18.4-19.5Lbf;
(2) The preparation method of the spring wrapping cloth can improve the aging resistance of the spring wrapping cloth, and after the prepared spring wrapping cloth is placed at 30-35 ℃ and 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) The preparation method of the spring coated cloth can improve the corrosion resistance of the spring coated cloth, and after the prepared spring coated cloth is soaked in a hydrochloric acid aqueous solution with the mass fraction of 5% 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 pack cloth 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
In order to more clearly understand the technical features, objects, and effects of the present invention, specific embodiments of the present invention will now be described.
Example 1
A preparation method of 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 temperatures of five heating areas of the screw extruder are respectively set to be 200 ℃, 210 ℃, 220 ℃, 230 ℃ and 240 ℃;
the particle size of the nano zeolite powder is 300nm;
wherein the weight ratio of the PP slices to the modifier to the nano zeolite powder is 45;
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;
the particle size of the nano boron nitride is 200nm;
wherein the weight ratio of zinc stearate, sodium dodecyl benzene sulfonate, water white hydrogenated rosin, alginic acid and nano boron nitride is (5).
2. Drafting: drawing the melt to obtain polypropylene filaments;
3. preparing modified polypropylene short fibers: soaking the polypropylene filaments in the surface modification solution 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 fibers to the surface modification liquid is 2;
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. Opening and cleaning: and (2) mixing the modified polypropylene short fiber with a 2.5D PET short fiber with the length of 51mm according to the weight ratio of 50.
5. Carding: the short fibers after opening are led into a carding machine for carding, and the fiber feeding amount of the carding machine is controlled to be 30g/m 2 The linear velocity was 50%, and carded staple fibers were obtained.
6. Lapping: and (3) introducing the carded short fibers into a lapping machine for lapping to obtain a cotton net, and controlling the number of lapping layers to be 5.
7. And (3) needling reinforcement: and (2) introducing the cotton net into a needle machine for needling reinforcement, controlling the working width of the needle machine in the process to be 4m, the needle density to be 4000 pieces/m, the needling frequency to be 600 times/min, and the production speed to be 16m/min, and tentering and hot rolling the needling reinforcement to obtain the primary spring wrapping cloth.
8. And (3) post-treatment: and (3) carrying out micro-current treatment on the primary spring wrapping cloth, controlling the micro-current to be 15uA in the micro-current treatment, and cutting according to the requirement after the micro-current treatment is finished to obtain the spring wrapping cloth.
The gram weight of the spring wrapping cloth prepared in this example was 74g/m 2
Example 2
A preparation method of 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 temperatures of five heating zones of the screw extruder are respectively set to be 205 ℃, 215 ℃, 225 ℃, 235 ℃ and 245 ℃;
the particle size of the nano zeolite powder is 320nm;
wherein, the weight ratio of the PP slices, the modifier and the nano zeolite powder is 47;
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, the rotating speed to be 320rpm, the time to be 35min, after the ball milling is finished, placing the mixture at-37 ℃ for freezing treatment for 47min, and then recovering to room temperature to obtain a modifier;
the particle size of the nano boron nitride is 250nm;
wherein the weight ratio of zinc stearate, sodium dodecyl benzene sulfonate, water white hydrogenated rosin, alginic acid and nano boron nitride is 6.5.
2. Drafting: drawing the melt to obtain polypropylene filaments;
3. preparing modified polypropylene short fibers: soaking the polypropylene filaments in the surface modification solution 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 filament to the surface modification liquid is 2;
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. Opening and cleaning: and (3) mixing the modified polypropylene short fiber with 2.5D PET short fiber with the length of 60mm according to the weight ratio of 48.
5. Carding: introducing the opened short fibers into a carding machine for carding, and controlling the fiber feeding amount of the carding machine to be 35g/m 2 The linear velocity was 52%, and 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 number of lapping layers to be 5.
7. And (3) needling reinforcement: the cotton net is introduced into a needle machine for needling reinforcement, the working width in the needle 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 the needling reinforcement and the tentering hot rolling.
8. And (3) post-treatment: and (3) carrying out micro-current treatment on the primary spring wrapping cloth, controlling the micro-current to be 17uA in the micro-current treatment, and cutting according to the requirement after the micro-current treatment is finished to obtain the spring wrapping cloth.
Spring prepared in this exampleThe gram weight of the wrapping cloth is 75g/m 2
Example 3
A preparation method of 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 temperatures of five heating zones of the screw extruder are 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 slices to the modifier to the nano zeolite powder is 48;
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;
the particle size of the nano boron nitride is 300nm;
wherein the weight ratio of zinc stearate, sodium dodecyl benzene sulfonate, water white hydrogenated rosin, alginic acid and nano boron nitride is 7.
2. Drafting: drawing the melt to obtain polypropylene filaments;
3. preparing modified polypropylene short fibers: soaking the polypropylene filaments in the surface modification solution 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 filament to the surface modification liquid is 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. Opening and cleaning: and (2) mixing the modified polypropylene short fiber with 2.5D PET short fiber with the length of 64mm according to a weight ratio of 45.
5. Carding: introducing the opened short fibers into a carding machine for carding, and controlling the fiber feeding amount of the carding machine to be 40g/m 2 The linear velocity was 55%, and carded staple fibers were obtained.
6. Lapping: and (3) introducing the carded short fibers into a lapping machine for lapping to obtain a cotton net, and controlling the number of lapping layers to be 6.
7. And (3) needling reinforcement: and (2) introducing the cotton net into a needle machine for needling reinforcement, controlling the working width of the needle machine in the process to be 5m, the needle density to be 5000 pieces/m, the needling frequency to be 900 times/min and the production speed to be 22m/min, and tentering and hot rolling the needling reinforcement to obtain the primary spring wrapping cloth.
8. And (3) post-treatment: and (3) carrying out micro-current treatment on the primary spring wrapping cloth, controlling the micro-current in the micro-current treatment to be 20uA and the time to be 55min, and cutting according to the requirement after the micro-current treatment is finished to obtain the spring wrapping cloth.
The gram weight of the spring coating cloth prepared in the embodiment is 74.5g/m 2
Comparative example 1
The same preparation method of spring packing cloth as that of the embodiment 1 is different in that: the addition of the modifier was omitted in the melt extrusion step of step 1.
The grammage of the spring wrapping cloth prepared in this example was 72g/m 2
Comparative example 2
The same preparation method of spring wrapping cloth as that of the embodiment 1 is different in that: and 3, in the step of preparing the modified polypropylene short fiber, the step of soaking the polypropylene filament in the surface modification solution is omitted, namely, the polypropylene filament is directly cut into 75mm by a cutting machine to obtain the modified polypropylene short fiber.
The grammage of the spring wrapping cloth prepared in this example was 75.5g/m 2
Comparative example 3
The same preparation method of spring wrapping cloth as that of the embodiment 1 is different in that: and (3) omitting the post-treatment step of the step 8, namely directly cutting the primary spring wrapping cloth obtained in the step 7 by needling according to the requirement to obtain the spring wrapping cloth.
The gram weight of the spring wrapping cloth prepared in this example was 73g/m 2
The mechanical properties of the spring wraps prepared in examples 1 to 3 and comparative examples 1 to 3 were measured, and the results were as follows:
Figure DEST_PATH_IMAGE001
the spring bags prepared in the examples 1 to 3 and the comparative examples 1 to 3 are placed at 30 to 35 ℃, irradiated for 3 months by an ultraviolet lamp, the power of the ultraviolet lamp is controlled to be 80W, the wavelength is 300nm, and the mechanical property is tested after the irradiation is finished, wherein the test results are as follows:
Figure DEST_PATH_IMAGE002
the spring bags prepared in examples 1 to 3 and comparative examples 1 to 3 were placed in a 5% hydrochloric acid aqueous solution by mass and soaked for 1 month, and the mechanical properties were tested, and the test results were as follows:
Figure DEST_PATH_IMAGE003
the spring packs prepared in examples 1 to 3 and comparative examples 1 to 3 were placed in a 5% by mass aqueous sodium hydroxide solution and soaked for 1 month, and mechanical properties were measured, and the results were as follows:
Figure DEST_PATH_IMAGE004
all percentages used in the present invention are mass percentages unless otherwise indicated.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A preparation method of spring wrapping cloth is characterized by comprising the steps of melt extrusion, drafting, modified polypropylene short fiber preparation, opening, carding, lapping, needling reinforcement and post-treatment;
and (3) opening, namely mixing the modified polypropylene short fiber with 2.5D regenerated PET short fiber with the length of 51-64mm according to the weight ratio of 45-50 to 55, then grabbing cotton, opening and mixing to obtain the opened short fiber.
2. The preparation method of the spring coated cloth according to claim 1, wherein the melt extrusion is carried out by drying and mixing PP slices, the modifier and the nano zeolite powder, and introducing the mixture into a screw extruder for melt extrusion to obtain a melt;
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 10-15, the rotating speed to be 300-350rpm, the time to be 30-40min, after the ball milling is finished, placing the mixture at the temperature of-40 ℃ to-35 ℃ for freezing treatment for 45-50min, and then recovering the temperature to room temperature to obtain the modifier.
3. The method for preparing spring packing cloth according to claim 2, wherein the temperatures of five heating zones of the screw extruder are set to 200 to 210 ℃, 210 to 220 ℃, 220 to 230 ℃, 230 to 240 ℃, and 240 to 250 ℃ respectively;
the particle size of the nano boron nitride is 200-300nm.
4. The preparation method of the spring coated cloth according to claim 1, wherein in the melt extrusion, the weight ratio of the PP slices, the modifier and the nano zeolite powder is 45-48;
the particle size of the nano zeolite powder is 300-350nm.
5. The preparation method of the spring coated cloth according to claim 1, wherein in the preparation of the modifier, the weight ratio of zinc stearate, sodium dodecyl benzene sulfonate, water white hydrogenated rosin, alginic acid and nano boron nitride is (5-7).
6. The method for preparing spring wrapping cloth according to claim 1, wherein the modified polypropylene short fiber is prepared by immersing polypropylene filaments in a surface modification solution at 40-45 ℃ for 45-50min, and cutting the fiber into 75-90mm with a cutter;
wherein the mass ratio of the polypropylene filament to the surface modification liquid is 2.
7. The method for preparing spring wrapping cloth according to claim 6, wherein the composition of the surface modification liquid comprises, 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.
8. The method for preparing spring clothing according to claim 1, wherein the carding step comprises carding the opened staple fibers in a carding machine, 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.
9. The method for preparing spring wrapping cloth according to claim 1, wherein the needle punching reinforcement is carried out by introducing the web into a needle punching machine for needle punching reinforcement, the working width in the process of the needle punching machine is controlled to be 4-5m, the needle density is 4000-5000 pieces/m, the needle punching frequency is 600-900 times/min, the production speed is 16-22m/min, and the needle punching reinforcement is tentered and hot rolled to the primary spring wrapping cloth.
10. The preparation method of the spring wrapping cloth according to claim 1, characterized in that the post-treatment is carried out by carrying out micro-current treatment on the primary spring wrapping cloth, wherein the micro-current in the micro-current treatment is controlled to be 15-20uA and the time is controlled to be 50-55min, and the spring wrapping cloth is obtained by cutting according to the requirement after the micro-current treatment is finished.
CN202210782926.5A 2022-07-05 2022-07-05 Preparation method of spring wrapping cloth Active CN115142190B (en)

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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
CN110184667A (en) * 2019-07-05 2019-08-30 常州兴烯石墨烯科技有限公司 A kind of modified white graphite allyl synthetic fibre composite fibre and preparation method thereof
CN112726022A (en) * 2021-01-07 2021-04-30 肇庆天乙非织造材料有限公司 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
CN113026205A (en) * 2021-03-31 2021-06-25 肇庆浚荣非织造材料有限公司 Anti-yellowing melt-blown fabric and preparation method thereof
CN113265769A (en) * 2021-05-10 2021-08-17 东营俊富净化科技有限公司 High-quality electric cotton non-woven fabric material and preparation method thereof

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3956783A (en) * 1974-10-21 1976-05-18 Phillips Petroleum Company Mattress
CN1473975A (en) * 2003-07-19 2004-02-11 仪征市恒丰无纺材料有限公司 Environment protection type needle punched non-woven fabric
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
CN110184667A (en) * 2019-07-05 2019-08-30 常州兴烯石墨烯科技有限公司 A kind of modified white graphite allyl synthetic fibre composite fibre and preparation method thereof
CN112726022A (en) * 2021-01-07 2021-04-30 肇庆天乙非织造材料有限公司 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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