CN111575914A - 3N spunlace non-woven fabric processing technology - Google Patents
3N spunlace non-woven fabric processing technology Download PDFInfo
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- CN111575914A CN111575914A CN202010400608.9A CN202010400608A CN111575914A CN 111575914 A CN111575914 A CN 111575914A CN 202010400608 A CN202010400608 A CN 202010400608A CN 111575914 A CN111575914 A CN 111575914A
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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
- D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
- D04H1/587—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
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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
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
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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
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
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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
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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
- D04H1/44—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
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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
- D04H1/44—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
- D04H1/492—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 by fluid jet
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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
- D04H1/44—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
- D04H1/492—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 by fluid jet
- D04H1/495—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 by fluid jet for formation of patterns, e.g. drilling or rearrangement
Abstract
The invention relates to the technical field of wall cloth production methods, and discloses a 3N spunlace non-woven fabric processing technology which comprises printing treatment, waterproof layer treatment and embossing treatment. The invention relates to a processing technology of 3N spunlace non-woven fabric, which adopts polypropylene fiber or terylene as a base material and is supplemented with ingredients with scientific proportion, the processed non-woven fabric has higher waterproof performance and air permeability on the basis of ensuring the strength and toughness requirements, meanwhile, the invention uses modified polyvinyl alcohol as a binding agent of the non-woven fabric, the binding agent has high air permeability and binding performance, and can enhance the air permeability, toughness and waterproofness of the non-woven fabric.
Description
Technical Field
The invention relates to the technical field of wall cloth production methods, in particular to a 3N spunlace non-woven fabric processing technology.
Background
The non-woven fabric is a fabric formed without spinning and weaving, fibers are directly bonded together by a physical method, the traditional spinning principle is broken through, and the non-woven fabric has the characteristics of high production rate, low cost, wide application, multiple raw material sources and the like.
Traditional non-woven fabrics quality is light, soft, ventilative, dials water, and is antibiotic moreover, the environmental protection, but compares intensity and durability relatively poor with textile fabric, and is not waterproof, and the gas permeability is poor, does not process simply like textile fabric moreover.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a 3N spunlace non-woven fabric processing technology, which solves the problems of poor strength and durability, water resistance, poor air permeability and simple processing unlike textile fabrics.
(II) technical scheme
In order to achieve the purpose of improving the qualification rate, the invention provides the following technical scheme: A3N spunlace non-woven fabric processing technology comprises printing treatment, waterproof layer treatment and embossing treatment.
(1) The processing technology for printing the 3N spunlace non-woven fabric comprises the following steps:
s1, melt blending: adding 0-10% of environment-friendly polypropylene fiber flame-retardant master batch by mass into polypropylene fiber or polyester processing raw materials, mixing, and performing high-temperature melt extrusion by using a large screw;
s3, spinning: the raw materials are on a spinning machine of a spinning system, the melt enters a spinning assembly firstly, is filtered again and uniformly pressed, is sprayed out in a trickle shape through a spinneret plate, and enters a quenching area to be cooled and solidified into filaments;
s2, drafting and web forming: leading the tows into a drafting nozzle to be drafted at high speed by compressed air, receiving fibers fed by a cotton feeder according to a set flow by a carding machine, carding the fibers into a net-shaped thin layer, lapping the net-shaped thin layer by a lapping machine for 8 to 9 layers to and fro, wherein the thickness of a cotton net is 35cm to 40cm, then uniformly paving the net-shaped thin layer on a conveying net, and laying the cotton net into a net;
s4, bonding: adding the modified polyvinyl alcohol into a charging barrel of a spraying device, uniformly spraying an adhesive between two layers of non-woven fabric fiber webs through a spraying process, vibrating the non-woven fabric fiber webs up and down to enable the adhesive to quickly and uniformly permeate into the non-woven fabric fiber webs, and conveying the non-woven fabric fiber webs forwards to a spunlace area;
s5, low-temperature drying: pre-wetting the mesh surface, then carrying out multi-channel spunlace and pattern spunlace on the front surface and the back surface, pre-drying, then respectively forming cloth by a pre-needling machine, a lower needling machine and an upper main needling machine, sending the fiber web into a hemming area of a hemming machine, hemming and reinforcing the hemming in the hemming area through the matching of a groove needle and a curved needle to prepare the required non-woven lining cloth,
s6, processing: and cutting the non-woven fabric according to the shape, laminating the cut and formed non-woven fabric, drying, rolling and packaging the shaped non-woven fabric, and transporting the non-woven fabric to a warehouse for storage.
(2) And the waterproof layer processing technology of the 3N spunlace non-woven fabric comprises the following steps: the waterproof layer is a modified polyvinyl alcohol raw material
S1, adding the cellulose nanocrystal, the carboxymethyl cellulose and the polyvinyl alcohol into a reaction kettle, stirring and reacting for 0.8-1h at 120 ℃, and cooling to 80-85 ℃.
And S2, adding neodecanoic acid glycidyl ester, continuously stirring for reaction for 0.4-0.6h, adding aminoethyl piperazine and triethanolamine, and fully and uniformly mixing to obtain the modified polyvinyl alcohol.
(3) The embossing processing technology of the 3N spunlace non-woven fabric comprises the following steps:
s1, engraving concave patterns on the surface of the embossing roller;
s2, passing the foam slurry through a roller;
s3, scraping redundant foaming slurry on the surface of the embossing roll except the concave patterns;
s4, transferring the foaming slurry in the concave patterns on the embossing roll to the non-woven base fabric through a press roll;
s5, baking the foaming slurry on the non-woven base fabric to be semi-dry;
s6, carrying out hot-pressing foaming on the non-woven fabric through a roller, wherein the roller consists of a lower roller and an upper roller, the lower roller is a rubber roller, and the upper roller is a steel roller.
Preferably, the flame retardant of the polypropylene spun-bonded non-woven fabric can adopt magnesium hydroxide, aluminum hydroxide, phosphoric acid triester, ammonium polyphosphate, octabromoether, triphenyl phosphate, hexabromocyclododecane, melamine pyrophosphate, zinc borate, decabromodiphenylethane, coated red phosphorus and triisocyanurate; flame retardants available for the terylene spunbonded nonwoven fabric include tris (2, 3-dichloropropyl) phosphate, triphenyl phosphate, melamine pyrophosphate, decabromodiphenylethane, ammonium polyphosphate, decabromodiphenyl ether and coated red phosphorus.
Preferably, the web enters the hemming zone of the hemming machine at an angle of 40-55 °.
Preferably, a fiber web pressing device is adopted during prewetting in the low-temperature drying step, so that no displacement exists among the fiber webs.
(III) advantageous effects
Compared with the prior art, the invention provides a 3N spunlace non-woven fabric processing technology, which has the following beneficial effects:
1. the 3N spunlace non-woven fabric processing technology adopts polypropylene fibers or polyester fibers as a base material, is supplemented with ingredients in scientific proportion, has high waterproof performance and air permeability on the basis of ensuring the strength and toughness requirements, simultaneously takes modified polyvinyl alcohol as a binding agent of the non-woven fabric, has high air permeability and bonding performance, can enhance the air permeability, toughness and waterproofness of the non-woven fabric, has simple processing technology, detailed production technology steps of each part, is suitable for being used by various types of production machines, has low requirements on production equipment, and is suitable for large-scale production.
Drawings
FIG. 1 is a preparation flow chart of a printing process of a 3N spunlace nonwoven fabric processing process according to the invention;
FIG. 2 is a preparation flow chart of a waterproof layer process of the 3N spunlace nonwoven fabric processing process.
FIG. 3 is a preparation flow chart of an embossing process of the 3N spunlace nonwoven fabric processing process of the invention
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment,
A3N spunlace non-woven fabric processing technology comprises printing treatment, waterproof layer treatment and embossing treatment.
(1) The processing technology for printing the 3N spunlace non-woven fabric comprises the following steps:
s1, melt blending: adding 0-10% of environment-friendly polypropylene fiber flame-retardant master batch by mass into polypropylene fiber or polyester fiber processing raw materials, mixing, and then carrying out high-temperature melt extrusion by a large screw.
S2, spinning: the raw materials are on a spinning machine of a spinning system, the melt enters a spinning assembly firstly, is filtered again and uniformly pressed, is sprayed out in a trickle shape through a spinneret plate, and enters a quenching area to be cooled and solidified into filaments.
S3, drafting and web forming: the tows are guided into a drafting nozzle to be drafted at high speed by compressed air, a carding machine receives fibers fed by a cotton feeder according to a set flow rate and then combs the fibers into a net-shaped thin layer, the net-shaped thin layer is lapped by 8 to 9 layers back and forth through a lapping machine, the thickness of a cotton net is 35cm to 40cm, and then the net-shaped thin layer is uniformly paved on a conveying net and is lapped into a net.
S4, bonding: adding the modified polyvinyl alcohol into a charging barrel of a spraying device, uniformly spraying the adhesive between two layers of non-woven fabric fiber webs through a spraying process, vibrating the non-woven fabric fiber webs up and down to ensure that the adhesive quickly and uniformly permeates into the non-woven fabric fiber webs, and forwards conveying the non-woven fabric fiber webs to a spunlace area.
S5, low-temperature drying: the method comprises the steps of firstly pre-wetting the mesh surface, then carrying out multi-channel spunlace and pattern spunlace on the front surface and the back surface, pre-drying, then respectively forming cloth through a pre-needling machine, a lower needling machine and an upper main needling machine, sending the fiber web into a hemming area of a hemming machine, and hemming and reinforcing in the hemming area through the matching of a grooved needle and a curved needle to obtain the required non-woven lining cloth.
S6, processing: and cutting the non-woven fabric according to the shape, laminating the cut and formed non-woven fabric, drying, rolling and packaging the shaped non-woven fabric, and transporting the non-woven fabric to a warehouse for storage.
(2) And the waterproof layer processing technology of the 3N spunlace non-woven fabric comprises the following steps: the waterproof layer is the modified polyvinyl alcohol raw material.
S1, adding the cellulose nanocrystal, the carboxymethyl cellulose and the polyvinyl alcohol into a reaction kettle, stirring and reacting for 0.8-1h at 120 ℃, and cooling to 80-85 ℃.
And S2, adding neodecanoic acid glycidyl ester, continuously stirring for reaction for 0.4-0.6h, adding aminoethyl piperazine and triethanolamine, and fully and uniformly mixing to obtain the modified polyvinyl alcohol.
(3) The embossing processing technology of the 3N spunlace non-woven fabric comprises the following steps:
and S1, engraving concave patterns on the surface of the embossing roller.
And S2, rolling the roller to pass through the foaming slurry.
And S3, scraping the excessive foaming slurry on the surface of the embossing roll except the concave patterns.
And S4, transferring the foaming slurry in the concave pattern on the embossing roller to the non-woven base fabric through the compression roller.
And S5, drying the foaming slurry on the non-woven base fabric to be semi-dry.
S6, carrying out hot-pressing foaming on the non-woven fabric through a roller, wherein the roller consists of a lower roller and an upper roller, the lower roller is a rubber roller, and the upper roller is a steel roller.
In the invention, the flame retardant of the polypropylene spun-bonded non-woven fabric can adopt magnesium hydroxide, aluminum hydroxide, phosphoric acid triester, ammonium polyphosphate, octabromoether, triphenyl phosphate, hexabromocyclododecane, melamine pyrophosphate, zinc borate, decabromodiphenylethane, coated red phosphorus and triisocyanurate; flame retardants available for the terylene spunbonded nonwoven fabric include tris (2, 3-dichloropropyl) phosphate, triphenyl phosphate, melamine pyrophosphate, decabromodiphenylethane, ammonium polyphosphate, decabromodiphenyl ether and coated red phosphorus.
In the present invention, the web enters the hemming zone of the hemming machine at an angle of 40-55 degrees.
In the invention, a fiber net pressing device is adopted during prewetting in the low-temperature drying step, so that no displacement exists among the fiber nets.
Example II,
A3N spunlace non-woven fabric processing technology comprises printing treatment, waterproof layer treatment and embossing treatment.
(1) The processing technology for printing the 3N spunlace non-woven fabric comprises the following steps:
s1, melt blending: 6 percent of environment-friendly polypropylene fiber flame-retardant master batch by mass is added into polypropylene fiber or polyester processing raw materials, and the mixture is subjected to high-temperature melt extrusion by a big screw after being mixed.
S3, spinning: the raw materials are on a spinning machine of a spinning system, the melt enters a spinning assembly firstly, is filtered again and uniformly pressed, is sprayed out in a trickle shape through a spinneret plate, and enters a quenching area to be cooled and solidified into filaments.
S2, drafting and web forming: the tows are guided into a drafting nozzle to be drafted at high speed by compressed air, a carding machine receives fibers fed by a cotton feeder according to a set flow rate and then combs the fibers into a net-shaped thin layer, the net-shaped thin layer is lapped by a lapping machine for 8 layers back and forth, the thickness of a cotton net is 35cm, and then the net-shaped thin layer is uniformly paved on a conveying net to be lapped into a net.
S4, bonding: adding the modified polyvinyl alcohol into a charging barrel of a spraying device, uniformly spraying the adhesive between two layers of non-woven fabric fiber webs through a spraying process, vibrating the non-woven fabric fiber webs up and down to ensure that the adhesive quickly and uniformly permeates into the non-woven fabric fiber webs, and forwards conveying the non-woven fabric fiber webs to a spunlace area.
S5, low-temperature drying: the method comprises the steps of firstly pre-wetting the mesh surface, then carrying out multi-channel spunlace and pattern spunlace on the front surface and the back surface, pre-drying, then respectively forming cloth through a pre-needling machine, a lower needling machine and an upper main needling machine, sending the fiber web into a hemming area of a hemming machine, and hemming and reinforcing in the hemming area through the matching of a grooved needle and a curved needle to obtain the required non-woven lining cloth.
S6, processing: and cutting the non-woven fabric according to the shape, laminating the cut and formed non-woven fabric, drying, rolling and packaging the shaped non-woven fabric, and transporting the non-woven fabric to a warehouse for storage.
(2) And the waterproof layer processing technology of the 3N spunlace non-woven fabric comprises the following steps: the waterproof layer is the modified polyvinyl alcohol raw material.
S1, adding the cellulose nanocrystal, the carboxymethyl cellulose and the polyvinyl alcohol into a reaction kettle, stirring and reacting at 120 ℃ for 0.9h, and cooling to 83 ℃.
And S2, adding neodecanoic acid glycidyl ester, continuously stirring for reaction for 0.5h, adding aminoethyl piperazine and triethanolamine, and fully and uniformly mixing to obtain the modified polyvinyl alcohol.
(3) The embossing processing technology of the 3N spunlace non-woven fabric comprises the following steps:
and S1, engraving concave patterns on the surface of the embossing roller.
And S2, rolling the roller to pass through the foaming slurry.
And S3, scraping the excessive foaming slurry on the surface of the embossing roll except the concave patterns.
And S4, transferring the foaming slurry in the concave pattern on the embossing roller to the non-woven base fabric through the compression roller.
And S5, drying the foaming slurry on the non-woven base fabric to be semi-dry.
S6, carrying out hot-pressing foaming on the non-woven fabric through a roller, wherein the roller consists of a lower roller and an upper roller, the lower roller is a rubber roller, and the upper roller is a steel roller.
Example III,
A3N spunlace non-woven fabric processing technology comprises printing treatment, waterproof layer treatment and embossing treatment.
(1) The processing technology for printing the 3N spunlace non-woven fabric comprises the following steps:
s1, melt blending: adding 8% of environment-friendly polypropylene fiber flame-retardant master batch by mass into polypropylene fiber or polyester fiber processing raw materials, mixing, and then carrying out high-temperature melt extrusion by using a large screw.
S3, spinning: the raw materials are on a spinning machine of a spinning system, the melt enters a spinning assembly firstly, is filtered again and uniformly pressed, is sprayed out in a trickle shape through a spinneret plate, and enters a quenching area to be cooled and solidified into filaments.
S2, drafting and web forming: the tows are guided into a drafting nozzle to be drafted at high speed by compressed air, a carding machine receives fibers fed by a cotton feeder according to a set flow rate and then combs the fibers into a net-shaped thin layer, the net-shaped thin layer is lapped by a lapping machine for 9 layers back and forth, the thickness of a cotton net is 40cm, and then the net-shaped thin layer is uniformly paved on a conveying net to be lapped into a net.
S4, bonding: adding the modified polyvinyl alcohol into a charging barrel of a spraying device, uniformly spraying the adhesive between two layers of non-woven fabric fiber webs through a spraying process, vibrating the non-woven fabric fiber webs up and down to ensure that the adhesive quickly and uniformly permeates into the non-woven fabric fiber webs, and forwards conveying the non-woven fabric fiber webs to a spunlace area.
S5, low-temperature drying: the method comprises the steps of firstly pre-wetting the mesh surface, then carrying out multi-channel spunlace and pattern spunlace on the front surface and the back surface, pre-drying, then respectively forming cloth through a pre-needling machine, a lower needling machine and an upper main needling machine, sending the fiber web into a hemming area of a hemming machine, and hemming and reinforcing in the hemming area through the matching of a grooved needle and a curved needle to obtain the required non-woven lining cloth.
S6, processing: and cutting the non-woven fabric according to the shape, laminating the cut and formed non-woven fabric, drying, rolling and packaging the shaped non-woven fabric, and transporting the non-woven fabric to a warehouse for storage.
(2) And the waterproof layer processing technology of the 3N spunlace non-woven fabric comprises the following steps: the waterproof layer is the modified polyvinyl alcohol raw material.
S1, adding the cellulose nanocrystal, the carboxymethyl cellulose and the polyvinyl alcohol into a reaction kettle, stirring and reacting for 1h at 120 ℃, and cooling to 85 ℃.
And S2, adding neodecanoic acid glycidyl ester, continuously stirring for reaction for 0.6h, adding aminoethyl piperazine and triethanolamine, and fully and uniformly mixing to obtain the modified polyvinyl alcohol.
(3) The embossing processing technology of the 3N spunlace non-woven fabric comprises the following steps:
and S1, engraving concave patterns on the surface of the embossing roller.
And S2, rolling the roller to pass through the foaming slurry.
And S3, scraping the excessive foaming slurry on the surface of the embossing roll except the concave patterns.
And S4, transferring the foaming slurry in the concave pattern on the embossing roller to the non-woven base fabric through the compression roller.
And S5, drying the foaming slurry on the non-woven base fabric to be semi-dry.
S6, carrying out hot-pressing foaming on the non-woven fabric through a roller, wherein the roller consists of a lower roller and an upper roller, the lower roller is a rubber roller, and the upper roller is a steel roller.
In conclusion, the non-woven fabric prepared by processing the polypropylene fiber or the polyester fiber serving as the base material and the auxiliary materials in scientific proportion has high waterproof performance and air permeability on the basis of ensuring the strength and toughness requirements, and meanwhile, the modified polyvinyl alcohol serving as the adhesive of the non-woven fabric has high air permeability and adhesive performance and can enhance the air permeability, toughness and waterproofness of the non-woven fabric.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The 3N spunlace non-woven fabric processing technology comprises printing treatment, waterproof layer treatment and embossing treatment, and is characterized in that:
(1) the processing technology for printing the 3N spunlace non-woven fabric comprises the following steps:
s1, melt blending: adding 0-10% of environment-friendly polypropylene fiber flame-retardant master batch by mass into polypropylene fiber or polyester processing raw materials, mixing, and performing high-temperature melt extrusion by using a large screw;
s3, spinning: the raw materials are on a spinning machine of a spinning system, the melt enters a spinning assembly firstly, is filtered again and uniformly pressed, is sprayed out in a trickle shape through a spinneret plate, and enters a quenching area to be cooled and solidified into filaments;
s2, drafting and web forming: leading the tows into a drafting nozzle to be drafted at high speed by compressed air, receiving fibers fed by a cotton feeder according to a set flow by a carding machine, carding the fibers into a net-shaped thin layer, lapping the net-shaped thin layer by a lapping machine for 8 to 9 layers to and fro, wherein the thickness of a cotton net is 35cm to 40cm, then uniformly paving the net-shaped thin layer on a conveying net, and laying the cotton net into a net;
s4, bonding: adding the modified polyvinyl alcohol into a charging barrel of a spraying device, uniformly spraying an adhesive between two layers of non-woven fabric fiber webs through a spraying process, vibrating the non-woven fabric fiber webs up and down to enable the adhesive to quickly and uniformly permeate into the non-woven fabric fiber webs, and conveying the non-woven fabric fiber webs forwards to a spunlace area;
s5, low-temperature drying: pre-wetting the mesh surface, then carrying out multi-channel spunlace and pattern spunlace on the front surface and the back surface, pre-drying, then respectively forming cloth by a pre-needling machine, a lower needling machine and an upper main needling machine, sending the fiber web into a hemming area of a hemming machine, hemming and reinforcing the hemming in the hemming area through the matching of a groove needle and a curved needle to prepare the required non-woven lining cloth,
s6, processing: and cutting the non-woven fabric according to the shape, laminating the cut and formed non-woven fabric, drying, rolling and packaging the shaped non-woven fabric, and transporting the non-woven fabric to a warehouse for storage.
(2) And the waterproof layer processing technology of the 3N spunlace non-woven fabric comprises the following steps: the waterproof layer is a modified polyvinyl alcohol raw material
S1, adding the cellulose nanocrystal, the carboxymethyl cellulose and the polyvinyl alcohol into a reaction kettle, stirring and reacting for 0.8-1h at 120 ℃, and cooling to 80-85 ℃.
And S2, adding neodecanoic acid glycidyl ester, continuously stirring for reaction for 0.4-0.6h, adding aminoethyl piperazine and triethanolamine, and fully and uniformly mixing to obtain the modified polyvinyl alcohol.
(3) The embossing processing technology of the 3N spunlace non-woven fabric comprises the following steps:
s1, engraving concave patterns on the surface of the embossing roller;
s2, passing the foam slurry through a roller;
s3, scraping redundant foaming slurry on the surface of the embossing roll except the concave patterns;
s4, transferring the foaming slurry in the concave patterns on the embossing roll to the non-woven base fabric through a press roll;
s5, baking the foaming slurry on the non-woven base fabric to be semi-dry;
s6, carrying out hot-pressing foaming on the non-woven fabric through a roller, wherein the roller consists of a lower roller and an upper roller, the lower roller is a rubber roller, and the upper roller is a steel roller.
2. A 3N spunlace nonwoven fabric processing process according to claim 1, characterized in that: the flame retardant of the polypropylene spun-bonded non-woven fabric can adopt magnesium hydroxide, aluminum hydroxide, phosphoric acid triester, ammonium polyphosphate, octabromoether, triphenyl phosphate, hexabromocyclododecane, melamine pyrophosphate, zinc borate, decabromodiphenylethane, coated red phosphorus and triisocyanurate; flame retardants available for the terylene spunbonded nonwoven fabric include tris (2, 3-dichloropropyl) phosphate, triphenyl phosphate, melamine pyrophosphate, decabromodiphenylethane, ammonium polyphosphate, decabromodiphenyl ether and coated red phosphorus.
3. A 3N spunlace nonwoven fabric processing process according to claim 1, characterized in that: the web enters the hemming zone of the hemming machine at an angle of 40-55 deg..
4. A 3N spunlace nonwoven fabric processing process according to claim 1, characterized in that: and in the low-temperature drying step, a fiber net pressing device is adopted during prewetting, so that no displacement exists among the fiber nets.
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| CN202010400608.9A CN111575914A (en) | 2020-05-13 | 2020-05-13 | 3N spunlace non-woven fabric processing technology |
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| CN202010400608.9A CN111575914A (en) | 2020-05-13 | 2020-05-13 | 3N spunlace non-woven fabric processing technology |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174695A (en) * | 2021-04-22 | 2021-07-27 | 杭州海滤新材料科技有限公司 | High-water-absorption high-wear-resistance spunlace non-woven fabric and preparation method thereof |
| CN115287821A (en) * | 2022-07-27 | 2022-11-04 | 泉州蓝凯纺织科技有限公司 | Novel non-woven fabric production process |
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2020
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113174695A (en) * | 2021-04-22 | 2021-07-27 | 杭州海滤新材料科技有限公司 | High-water-absorption high-wear-resistance spunlace non-woven fabric and preparation method thereof |
| CN115287821A (en) * | 2022-07-27 | 2022-11-04 | 泉州蓝凯纺织科技有限公司 | Novel non-woven fabric production process |
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