CN117144560A - Manufacturing method of non-decrement process bio-based microfiber base cloth - Google Patents

Manufacturing method of non-decrement process bio-based microfiber base cloth Download PDF

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Publication number
CN117144560A
CN117144560A CN202311130609.6A CN202311130609A CN117144560A CN 117144560 A CN117144560 A CN 117144560A CN 202311130609 A CN202311130609 A CN 202311130609A CN 117144560 A CN117144560 A CN 117144560A
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China
Prior art keywords
bio
tpu
dmf
fiber
superfine fiber
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Pending
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CN202311130609.6A
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Chinese (zh)
Inventor
张军锋
徐华伟
赵烈
季成
胡益涛
李超
杨红英
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Hexin Keli Super Fiber Sea Salt Co ltd
Hexin Keleli Microfiber Leather Jiaxing Co ltd
Original Assignee
Hexin Keli Super Fiber Sea Salt Co ltd
Hexin Keleli Microfiber Leather Jiaxing Co ltd
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Application filed by Hexin Keli Super Fiber Sea Salt Co ltd, Hexin Keleli Microfiber Leather Jiaxing Co ltd filed Critical Hexin Keli Super Fiber Sea Salt Co ltd
Priority to CN202311130609.6A priority Critical patent/CN117144560A/en
Publication of CN117144560A publication Critical patent/CN117144560A/en
Pending legal-status Critical Current

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    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43838—Ultrafine fibres, e.g. microfibres
    • 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/12—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyamide as constituent
    • 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/14—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyester as constituent
    • 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
    • D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
    • D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
    • D01F8/16—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one other macromolecular compound obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds as constituent
    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/4383—Composite fibres sea-island
    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43825—Composite fibres
    • D04H1/43832—Composite fibres side-by-side
    • 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
    • D04H1/4391—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 characterised by the shape of the fibres
    • D04H1/43912—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 characterised by the shape of the fibres fibres with noncircular cross-sections
    • 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
    • D04H1/48—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 in combination with at least one other method of consolidation
    • D04H1/485—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 in combination with at least one other method of consolidation in combination with weld-bonding
    • 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
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • 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
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D06M15/568—Reaction products of isocyanates with polyethers
    • 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
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
    • D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
    • D06M15/572—Reaction products of isocyanates with polyesters or polyesteramides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0004—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using ultra-fine two-component fibres, e.g. island/sea, or ultra-fine one component fibres (< 1 denier)
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0011—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using non-woven fabrics
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/32—Polyesters
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D06M2101/34—Polyamides
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    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
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    • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
    • D06M2101/16—Synthetic fibres, other than mineral fibres
    • D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

The invention discloses a manufacturing method of a non-decrement process bio-based microfiber base fabric, which comprises the following specific embodiments: the method comprises the steps of taking bio-based nylon or bio-based PET as a component A material, taking TPU as a component B material, adopting a composite spinning process to prepare bio-based superfine fiber, sequentially cutting, carding, lapping and needling the superfine fiber to prepare superfine fiber needled cloth, heating the needled cloth in an oven to soften, cooling and scalding, firstly immersing the ironed non-woven fabric in pure DMF to pre-dissolve the TPU in the fiber, then immersing the non-woven fabric immersed in the DMF in polyurethane resin, and finally solidifying, washing and drying to prepare the bio-based superfine fiber base cloth with a non-decrement process. The invention adopts TPU which can be dissolved in DMF as the component B, and adopts DMF solution to pre-dissolve TPU in the fiber before impregnating polyurethane, so that the TPU is dissolved and stripped from the fiber, thereby eliminating the decrement procedure in the traditional microfiber industry, generating no great amount of waste solids and obviously reducing energy consumption.

Description

Manufacturing method of non-decrement process bio-based microfiber base cloth
Technical Field
The invention belongs to the technical field of artificial leather preparation, and particularly relates to a manufacturing method of a non-decrement process bio-based microfiber base fabric.
Background
The superfine fiber synthetic leather has high mechanical property, high durability and high leather imitation property, is deep into the heart of people, and is widely applied to sofa furniture, luggage and shoe materials and automobile interior trim industries. However, with the increasing demand of environmental protection in recent years, customers are concerned about not only the high performance of materials, but also whether the material production process is green, energy consumption and the like are factors that customers consider purchasing. At present, two processes are mainly adopted in the production of superfine fibers, one process is a mixed spinning-toluene reduction method, a mixed mode of nylon and polyethylene in a proportion of about 50/50 is adopted, after the base cloth is manufactured, the polyethylene in the fibers is dissolved out by toluene, toluene solution of the polyethylene is separated by evaporation, and the produced polyethylene can be sold as plastic for the second time, and has low raw material cost and larger energy consumption. One is a composite spinning-alkali deweighting method. The nylon and alkali-soluble polyester are adopted to be subjected to composite spinning in a proportion of about 65/35, the alkali-soluble polyester in the fiber is hydrolyzed by using a sodium hydroxide solution with concentration of about 5% after the base cloth is manufactured, and the waste liquid is discharged after sewage treatment.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a method for manufacturing a non-deweighting bio-based microfiber base fabric.
The specific technical scheme is as follows:
a manufacturing method of a non-decrement process bio-based microfiber base fabric comprises the following steps:
1) Preparing biological base superfine fiber: biological-based nylon or biological-based PET is used as a component A material, TPU is used as a component B material, and a composite spinning process is adopted to prepare the biological-based superfine fiber;
2) Cutting, carding, lapping and needling the biological-based superfine fibers prepared in the step 1) in sequence to prepare superfine fiber needled cloth;
3) Heating and softening the superfine fiber needled cloth prepared in the step 2) in an oven, and ironing through a mirror roller through which cooling water is introduced;
4) Immersing the ironed non-woven fabric in pure DMF (dimethyl formamide) to pre-dissolve TPU (thermoplastic polyurethane) in the fiber, and keeping the pre-dissolving time to be more than or equal to 5 minutes;
5) And (3) soaking the non-woven fabric soaked with DMF in polyurethane resin, and finally, solidifying, washing and drying to obtain the bio-based microfiber base fabric with a non-decrement process.
Further, the bio-based nylon in the step 1) is one or more of PA56, PA410, PA510, PA610, PA1010, PA1012 and PA11, and the bio-based PET is a dehydrated polymer of one or more alcohols of bio-based 1, 3-propanediol, 1, 4-butanediol, refined terephthalic acid and isophthalic acid and acid.
Further, the TPU in the step 1) is formed by polymerizing bio-based polyether or polyester polyol and isocyanate, wherein the softening point is 110-170 ℃, and the preferable softening point is 120+/-10 ℃, and the polyester polyol is bio-based 1, 3-propanediol, and one or two of 1, 4-butanediol and bio-based 1, 4-succinic acid or 1, 6-adipic acid dehydrated polymer.
Further, the bio-based superfine fiber prepared in the step 1) is in a sea-island structure, a rice-shaped structure or a orange-petal structure.
Further, the temperature of the oven in step 3) is determined according to the melting point of the TPU, and the temperature of the oven is 30 ℃ higher than the melting point of the TPU.
Further, the polyurethane resin in the step 5) is formed by polymerizing one or two of bio-based polyether and bio-based polyester polyol with diphenylmethane diisocyanate.
Further, the bio-based polyether is bio-based 1, 3-propylene glycol ether or 1, 4-butanediol ether, and the bio-based polyester polyol is formed by dehydration condensation of one or two of bio-based 1, 3-propylene glycol and 1, 4-butanediol and bio-based 1, 4-succinic acid or 1, 6-adipic acid.
The invention has the beneficial effects that:
the invention adopts TPU which can be dissolved in DMF as the component B in the superfine fiber spinning process, and adopts DMF solution to pre-dissolve TPU in the fiber before impregnating polyurethane, so that the TPU is peeled from the fiber, thereby eliminating the decrement procedure in the traditional superfine fiber industry, avoiding producing a large amount of waste solids and obviously reducing the energy consumption.
Detailed Description
The present invention will be further described with reference to examples, but the scope of the present invention is not limited thereto.
Example 1
1) The sea-island type composite fiber with the mass ratio of 65/35 is prepared by using biological nylon PA11 as an island component and biological TPU (thermoplastic polyurethane) which is polymerized by biological 1, 3-propanediol ether and isocyanate and has the softening point of 120+/-10 ℃ as a sea component;
2) Cutting, carding, lapping and needling the sea-island type composite fibers in the step 1) to obtain superfine fiber needled cloth;
3) Heating and softening the superfine fiber needled cloth in the step 2) at the temperature of 150+/-2 ℃ in an oven, and cooling and ironing the superfine fiber needled cloth by a mirror roller with cooling water to obtain superfine fiber non-woven fabrics;
4) Soaking the non-woven fabric in an organic solvent DMF, and controlling the speed of the vehicle to ensure that the non-woven fabric stays in the DMF for 5 minutes;
5) The non-woven fabric soaked by DMF is put into polyurethane resin solution formed by polymerizing bio-based 1, 3-propylene glycol ether with molecular weight of 500 and diphenylmethane diisocyanate, so that the polyurethane resin solution is completely filled into the non-woven fabric;
6) And solidifying the polyurethane filled non-woven fabric through a DMF (dimethyl formamide) aqueous solution, washing with water and drying to obtain the bio-based microfiber base fabric with a non-decrement process.
Example 2
1) The preparation method comprises the steps of using bio-based nylon PA510 as a component A and bio-based TPU which is prepared by polymerizing bio-based 1, 3-propanediol and 1, 6-adipic acid prepared by polycondensation of polyester and isocyanate with a softening point of 140+/-10 ℃ as a component B to prepare orange-segment type composite fiber with a mass ratio of 70/30;
2) Cutting, carding, lapping and needling the orange-petal type composite fibers in the step 1) to obtain superfine fiber needled cloth;
3) Heating and softening the superfine fiber needled cloth in the step 2) at 170+/-2 ℃ in an oven, and cooling and ironing the superfine fiber needled cloth by a mirror roller with cooling water to obtain superfine fiber non-woven fabrics;
4) Soaking the non-woven fabric in an organic solvent DMF, and controlling the speed of the vehicle to ensure that the non-woven fabric stays in the DMF for 8 minutes;
5) The non-woven fabric soaked by DMF is put into polyurethane solution which is formed by polymerizing polyester prepared by polycondensation of bio-based 1, 3-propanediol and 1, 6-adipic acid with diphenyl methane diisocyanate and has the molecular weight of 2000, so that the polyurethane resin solution is completely filled into the non-woven fabric;
6) And solidifying the polyurethane filled non-woven fabric through a DMF (dimethyl formamide) aqueous solution, washing with water and drying to obtain the bio-based microfiber base fabric with a non-decrement process.
Example 3
1) The preparation method comprises the steps of (1) using bio-based PET as a component A and polyester prepared by polycondensation of bio-based 1, 3-propanediol and bio-based 1, 4-butanedioic acid at 130+/-10 ℃ and isocyanate polymerization bio-based TPU as a component B to prepare orange-segment type composite fiber with the mass ratio of 70/30;
2) Cutting, carding, lapping and needling the orange-petal type composite fibers in the step 1) to obtain superfine fiber needled cloth;
3) Heating and softening the superfine fiber needled cloth in the step 2) at 160+/-2 ℃ of the temperature of an oven, and cooling and ironing the superfine fiber needled cloth by a mirror roller with cooling water to obtain superfine fiber non-woven fabrics;
4) Soaking the non-woven fabric in an organic solvent DMF, and controlling the speed of the vehicle to ensure that the non-woven fabric stays in the DMF for 7 minutes;
5) The non-woven fabric soaked by DMF is put into polyurethane solution formed by polymerizing polyester prepared by polycondensation of bio-based 1, 3-propanediol and bio-based 1, 4-succinic acid and diphenylmethane diisocyanate, so that the polyurethane resin solution is completely filled into the non-woven fabric;
6) And solidifying the polyurethane filled non-woven fabric through a DMF (dimethyl formamide) aqueous solution, washing with water and drying to obtain the bio-based microfiber base fabric with a non-decrement process.
Example 4
1) The mass ratio of the bio-based nylon PA56 to the PA510 is 1:1 is a component A, and a component B is a bio-based TPU polymerized by polyester prepared by polycondensation of bio-based 1, 3-propanediol and 1, 6-adipic acid at the temperature of 120+/-10 ℃ and isocyanate, so as to prepare an orange-peel type composite fiber with the mass ratio of 70/30;
2) Cutting, carding, lapping and needling the orange-petal type composite fibers in the step 1) to obtain superfine fiber needled cloth;
3) Heating and softening the superfine fiber needled cloth in the step 2) at the temperature of 150+/-2 ℃ in an oven, and cooling and ironing the superfine fiber needled cloth by a mirror roller with cooling water to obtain superfine fiber non-woven fabrics;
4) Soaking the non-woven fabric in an organic solvent DMF, and controlling the speed of the vehicle to ensure that the non-woven fabric stays in the DMF for 6 minutes;
5) The non-woven fabric soaked by DMF is put into polyurethane solution which is prepared by polymerizing polyester prepared by polycondensation of bio-based 1, 3-propanediol with molecular weight of 2000 and 1, 6-adipic acid and bio-based 1, 3-propanediol ether with molecular weight of 2000 and diphenylmethane diisocyanate, so that the polyurethane solution is completely filled into the non-woven fabric;
6) And solidifying the polyurethane filled non-woven fabric through a DMF (dimethyl formamide) aqueous solution, washing with water and drying to obtain the bio-based microfiber base fabric with a non-decrement process.
Example 5
1) The mass ratio of bio-based nylon PA510 to PA11 is 1:1 is a component A and a component B, wherein the component A and the component B are prepared by polymerizing bio-based 1, 3-propylene glycol ether and isocyanate at the temperature of 120+/-10 ℃ to prepare the rice-shaped composite fiber with the mass ratio of 70/30;
2) Cutting, carding, lapping and needling the rice-shaped composite fibers in the step 1) to obtain superfine fiber needled cloth;
3) Heating and softening superfine fiber needled cloth at 150+/-2 ℃ in an oven, and cooling and ironing the cloth by a mirror roller through which cooling water is introduced to obtain superfine fiber non-woven fabric;
4) Soaking the non-woven fabric in an organic solvent DMF, and controlling the speed of the vehicle to ensure that the non-woven fabric stays in the DMF for 6 minutes;
5) The non-woven fabric soaked by DMF is put into polyurethane solution which is polymerized by polyester prepared by polycondensation of bio-based 1, 4-butanediol with the molecular weight of 1000 and 1, 6-adipic acid, bio-based 1, 3-propanediol ether with the molecular weight of 2000 and diphenylmethane diisocyanate, so that the polyurethane solution is completely filled into the non-woven fabric;
6) And solidifying the polyurethane filled non-woven fabric through a DMF (dimethyl formamide) aqueous solution, washing with water and drying to obtain the bio-based microfiber base fabric with a non-decrement process.

Claims (7)

1. The manufacturing method of the non-decrement process bio-based microfiber base cloth is characterized by comprising the following steps of:
1) Preparing biological base superfine fiber: biological-based nylon or biological-based PET is used as a component A material, TPU is used as a component B material, and a composite spinning process is adopted to prepare the biological-based superfine fiber;
2) Cutting, carding, lapping and needling the biological-based superfine fibers prepared in the step 1) in sequence to prepare superfine fiber needled cloth;
3) Heating and softening the superfine fiber needled cloth prepared in the step 2) in an oven, and ironing through a mirror roller through which cooling water is introduced;
4) Immersing the ironed non-woven fabric in pure DMF (dimethyl formamide) to pre-dissolve TPU (thermoplastic polyurethane) in the fiber, and keeping the pre-dissolving time to be more than or equal to 5 minutes;
5) And (3) soaking the non-woven fabric soaked with DMF in polyurethane resin, and finally, solidifying, washing and drying to obtain the bio-based microfiber base fabric with a non-decrement process.
2. The method of claim 1, wherein the bio-based nylon in step 1) is a dehydrated polymer of one or more alcohols selected from the group consisting of PA56, PA410, PA510, PA610, PA1010, PA1012, and PA11, and bio-based PET is bio-based 1, 3-propanediol, 1, 4-butanediol, purified terephthalic acid, and isophthalic acid.
3. The process according to claim 1, wherein the TPU in step 1) is a bio-based TPU comprising bio-based polyether or polyester polyol and isocyanate, the softening point of the bio-based TPU being 110-170 ℃, preferably 120 ℃ ± 10 ℃, wherein the polyester polyol is bio-based 1, 3-propanediol, one or both of 1, 4-butanediol and bio-based 1, 4-butanedioic acid or 1, 6-hexanedioic acid dehydrated polymer.
4. The method of claim 1, wherein the bio-based ultrafine fiber prepared in step 1) has a sea-island structure, a rice-shaped structure, or a orange-peel structure.
5. The process according to claim 1, wherein the temperature of the oven in step 3) is determined by the melting point of the TPU, and the temperature of the oven is 30 ℃ higher than the melting point of the TPU.
6. The method of claim 1, wherein the polyurethane resin in step 5) is polymerized with diphenylmethane diisocyanate in one or both of a bio-based polyether and a bio-based polyester polyol.
7. The method according to claim 6, wherein the bio-based polyether is bio-based 1, 3-propanediol ether or 1, 4-butanediol ether, and the bio-based polyester polyol is formed by dehydration-condensation of bio-based 1, 3-propanediol and 1, 4-butanediol with bio-based 1, 4-succinic acid or 1, 6-adipic acid.
CN202311130609.6A 2023-09-04 2023-09-04 Manufacturing method of non-decrement process bio-based microfiber base cloth Pending CN117144560A (en)

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