CN113355806A - Production process of SMMSS cotton soft water-repellent non-woven fabric - Google Patents

Production process of SMMSS cotton soft water-repellent non-woven fabric Download PDF

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Publication number
CN113355806A
CN113355806A CN202110620542.9A CN202110620542A CN113355806A CN 113355806 A CN113355806 A CN 113355806A CN 202110620542 A CN202110620542 A CN 202110620542A CN 113355806 A CN113355806 A CN 113355806A
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China
Prior art keywords
woven fabric
parts
water
repellent
master batch
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CN202110620542.9A
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Chinese (zh)
Inventor
姚瑶
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Jiangyin Hongyong Medical Technology Development Co ltd
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Jiangyin Hongyong Medical Technology Development Co ltd
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Priority to CN202110620542.9A priority Critical patent/CN113355806A/en
Publication of CN113355806A publication Critical patent/CN113355806A/en
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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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
    • D04H3/147—Composite yarns or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/0006—Means for guiding the cutter
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/26—Cutting-off the web running to the wound web roll
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H19/00—Changing the web roll
    • B65H19/22—Changing the web roll in winding mechanisms or in connection with winding operations
    • B65H19/30—Lifting, transporting, or removing the web roll; Inserting core
    • 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
    • D04H1/54—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 welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed 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
    • D04H1/54—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 welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—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 welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple 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
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/005—Synthetic yarns or filaments
    • D04H3/007—Addition polymers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06H—MARKING, INSPECTING, SEAMING OR SEVERING TEXTILE MATERIALS
    • D06H7/00—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials
    • D06H7/02—Apparatus or processes for cutting, or otherwise severing, specially adapted for the cutting, or otherwise severing, of textile materials transversely
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/726—Permeability to liquids, absorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/73—Hydrophobic
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
    • D10B2321/022—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polypropylene
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2401/00—Physical properties
    • D10B2401/02—Moisture-responsive characteristics
    • D10B2401/021—Moisture-responsive characteristics hydrophobic

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)

Abstract

The invention discloses a production process of SMMSS cotton soft water-repellent non-woven fabric, which is obtained by sequentially hot rolling and bonding spun-bonded non-woven fabric, melt-blown non-woven fabric, spun-bonded non-woven fabric and spun-bonded non-woven fabric from top to bottom, then coiling, detecting, uncoiling and slitting; the spun-bonded non-woven fabric is prepared from the following raw materials in parts by weight: 92-96 parts of polypropylene, 3-5 parts of water-repellent master batch, 0.5-1.5 parts of soft master batch and 2-5 parts of coupling agent; the melt-blown non-woven fabric is composed of the following raw materials in parts by weight: 92-96 parts of polypropylene master batch, 3-5 parts of water-repellent master batch, 0.5-1.5 parts of soft master batch and 2-5 parts of coupling agent; the obtained non-woven fabric has good comfort and water repellency; in addition, after the non-woven fabrics rolling is accomplished, through the work of control actuating mechanism, can accomplish simultaneously and cut off the non-woven fabrics and take off the work with wind-up roll 4 of rolling non-woven fabrics to the work efficiency of rolling is carried out the non-woven fabrics to having improved greatly.

Description

Production process of SMMSS cotton soft water-repellent non-woven fabric
Technical Field
The invention belongs to the technical field of non-woven fabrics, and particularly relates to a production process of SMMSS cotton soft water-repellent non-woven fabrics.
Background
The non-woven fabric has the characteristics of moisture resistance, air permeability, flexibility, light weight, no combustion supporting, easy decomposition, no toxicity or irritation, rich color, low price, recycling and the like. For example, the polypropylene (pp material) granules are mostly adopted as raw materials and are produced by a continuous one-step method of high-temperature melting, spinning, laying a line and hot-pressing coiling.
In the prior art, the surface of the non-woven fabric is single in performance, the surface of the non-woven fabric is not good enough in the aspects of softness and water repellency, the softness is low, the water repellency is poor, and meanwhile, the effects of simultaneously combining multiple performances such as softness, water repellency, stain resistance, water and oil repellency, acid and alkali resistance, corrosion resistance and the like cannot be achieved; in addition, the non-woven fabrics is in the production preparation in-process, wherein in the rolling technology, it is more troublesome that there is the wind-up roll when installation and dismantlement, needs the manual work to carry out the auxiliary operation, and simultaneously, the operation of shearing also is independent operation, also will influence non-woven fabrics preparation efficiency, can appear leveling inadequately when cutting in the face of soft non-woven fabrics, also can take place the problem of cutting position deviation during the cutting.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the surface of the non-woven fabric is single in performance, the surface of the non-woven fabric is not good enough in the aspects of softness and water repellency, the softness is low, the water repellency is poor, and meanwhile, the effects of simultaneously combining various performances such as softness, water repellency, stain resistance, water and oil repellency, acid and alkali resistance, corrosion resistance and the like cannot be achieved; in addition, during the production and preparation of the non-woven fabric, in the winding process, the winding roller is troublesome to install and disassemble, auxiliary operation is needed manually, meanwhile, the shearing operation is also independent, the preparation efficiency of the non-woven fabric is influenced, the non-woven fabric is not smooth enough when the non-woven fabric is cut in the face of soft, and the problem of cutting position deviation also occurs during cutting, so that the production process of the SMMSS cotton soft water-repellent non-woven fabric is provided.
The purpose of the invention can be realized by the following technical scheme:
the production process of SMMSS cotton soft water-repellent non-woven fabric is characterized in that: the SMMSS super-soft water-repellent non-woven fabric is prepared by sequentially hot-rolling and bonding a spun-bonded non-woven fabric, a melt-blown non-woven fabric, a spun-bonded non-woven fabric and a spun-bonded non-woven fabric from top to bottom, and then winding, detecting, unwinding and slitting;
the spun-bonded non-woven fabric is prepared from the following raw materials in parts by weight: 92-96 parts of polypropylene, 3-5 parts of water-repellent master batch, 0.5-1.5 parts of soft master batch and 2-5 parts of coupling agent; the melt-blown non-woven fabric is composed of the following raw materials in parts by weight: 92-96 parts of polypropylene master batch, 3-5 parts of water-repellent master batch, 0.5-1.5 parts of soft master batch and 2-5 parts of coupling agent;
the water-repellent master batch is fluorine-silicon modified acrylate; the soft master batch is prepared from the following raw materials in parts by weight: 75-85 parts of polypropylene homopolymer, 14-24 parts of oleamide and 0.3-0.9 part of di-tert-butyl peroxide; the coupling agent is one of KH570, KH560 and KH 550.
Preferably, the preparation process of the spunbonded nonwoven fabric comprises the following steps:
the first step is as follows: adding the polypropylene fibers, the water-repellent master batches, the soft master batches and the coupling agent in parts by weight into a mixing tank, and stirring and mixing;
the second step is that: taking the raw materials after the melt is metered, and carrying out die head spinning; obtaining a spinning jet;
the third step: spinning, dividing and lapping to obtain a woven sheet, and passing the woven sheet between a pattern roller and a smooth roller to perform hot rolling treatment; hot rolling treatment, wherein the temperature of a patterned roller is 145 ℃, and the temperature of a smooth roller is 130 ℃; the speed of the mesh belt is 630m/min, the speed ratio of the hot rolling mill is 0.8 percent, the speed ratio of the cold water roller is 1.0 percent, the hot rolling pressure is 80daN/cm, and the spunbonded non-woven fabric is obtained through feeding, winding and slitting.
Preferably, the parameters of the die head spinning process are as follows: bellows pressure 2900 pa; the rotating speed ratio of the fan is 80-82%; the temperature of the upper and lower cold air is 18 ℃, the three zones of the single body suction air volume are 1300m3/h。
Preferably, the preparation process of the melt-blown non-woven fabric comprises the following steps:
adding the polypropylene master batches, the water-repellent master batches, the soft master batches and the coupling agent in parts by weight into a mixing tank, and stirring and mixing; then, carrying out melt blending granulation by a double-screw extruder, wherein the melt blending granulation temperature of the double-screw extruder is 190 ℃; and after the melt-blown process, the melt-blown non-woven fabric is obtained through liquid feeding, winding and slitting.
Preferably, the melt-blowing process parameters are as follows: the hot air pressure is 0.08Mpa, the hot air temperature is 250 ℃, the filter screen temperature is 220 ℃, the metering pump temperature is 220 ℃, the spray head temperature is 220 ℃, the extruder temperature is 200 ℃, and the receiving distance is 20 cm.
Preferably, the preparation process of the water-repellent master batch comprises the following steps:
the first step is as follows: preparing a mixed monomer I copolymer from methyl methacrylate, butyl acrylate and dodecafluoroheptyl methacrylate, wherein the glass transition temperature of the mixed monomer I copolymer is about-5 ℃, and adding an initiator solution;
the second step is that: adding 3 parts of ammonia water, 0.5 part of SDS (sodium dodecyl sulfate), 1.0 part of OP-10 and 50 parts of water into a reaction kettle, stirring for 20 minutes, and heating to 50 ℃; adding 2 parts of gamma-methacryloxypropyltrimethoxysilane into the reaction kettle for 0.5 hour, and reacting for 12 hours to obtain a product solution;
the third step: and heating the product solution to 78 ℃, dropwise adding the mixed monomer I copolymer and the initiator solution into the heated product solution for 3 hours, preserving the heat for 20 minutes after dropwise adding, heating to 83 ℃, preserving the heat for 2 hours, cooling to 40 ℃, filtering and discharging to obtain the water-repellent master batch.
Preferably, the initiator solution is made up of 1.0 part of the initiator potassium persulfate dissolved in 15 parts of water.
Preferably, the weight ratio of methyl methacrylate, butyl acrylate and dodecafluoroheptyl methacrylate is 10.0-30.0: 10.0-30.0: 5.0-10.0.
Compared with the prior art, the invention has the beneficial effects that: the spunbonded non-woven fabric is made of polypropylene materials, and the obtained polypropylene spunbonded non-woven fabric has the advantages of high water absorption, no fluffiness, softness, fluffiness and good friction hand feeling; the melt-blown non-woven fabric is made of polypropylene materials, and the obtained polypropylene melt-blown non-woven fabric has the advantages of high strength, good flexibility and good air permeability; and the fluorine-silicon modified acrylic ester water-repellent master batch is added on the polypropylene spun-bonded non-woven fabric and the polypropylene non-woven fabric, so that the prepared SMMSS cotton soft water-repellent non-woven fabric has good water repellency; meanwhile, the fluorine-silicon modified acrylate also has the advantages of stain resistance, water and oil repellency, acid and alkali resistance, corrosion resistance and the like, so that the SMMSS cotton soft water-repellent non-woven fabric prepared by the fluorine-silicon modified acrylate has good stain resistance, water and oil repellency, acid and alkali resistance and corrosion resistance under the condition of super-good softness and water repellency;
the winding mechanism controls the first motor to work and drives the winding roller to work so as to wind the SMMSS cotton soft water-repellent non-woven fabric, and has the advantages of simple structure and high winding efficiency;
according to the fixing piece, the two groups of threaded sliding blocks move close to or away from each other, and then the movable rod is connected with the connecting plate to drive the connecting shaft to move along the sliding sleeve, so that the distance between the two groups of clamping plates is adjusted, and the winding roller can be clamped and disassembled conveniently
According to the cutting mechanism, when the SMMSS cotton soft water-repellent non-woven fabric is rolled, the SMMSS cotton soft water-repellent non-woven fabric needs to penetrate through the upper limiting roller and the lower limiting roller, the upper limiting roller and the lower limiting roller play a limiting role, so that the non-woven fabric is more orderly rolled, the upper limiting roller is provided with the groove body matched with the cutter, the blade of the cutter is hidden into the upper limiting roller, the cutter cannot be contacted with the non-woven fabric when rolled, meanwhile, the movement of the cutter is limited, and after the rolling is finished, the cutter is controlled to move downwards along the groove body, so that the non-woven fabric is orderly and quickly cut; the non-woven fabric prepared by the invention has good flexibility, so that a common cutter is not smooth enough when cutting, and the problem of cutting position deviation can occur when cutting; but the cutting mechanism matched with the winding mechanism can cut quickly and orderly;
according to the driving mechanism disclosed by the invention, after the non-woven fabric is rolled, the driving mechanism is controlled to work, so that the non-woven fabric can be cut off and the rolling roller 4 for rolling the non-woven fabric can be taken down simultaneously, and the working efficiency for rolling the non-woven fabric is greatly improved.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of the connection relationship of the base, the winding mechanism and the cutting mechanism in the present invention.
FIG. 2 is a side view of the connection of the base, winding mechanism and cutting mechanism of the present invention.
FIG. 3 is a first schematic view of the interior cavity of the base of the present invention.
FIG. 4 is a second schematic view of the interior cavity of the base of the present invention.
Fig. 5 is a schematic structural view of the elastic telescopic rod of the present invention.
In the figure: 1. a support; 2. a base; 3. a first motor; 4. a wind-up roll; 5. a splint; 6. mounting a plate; 7. a cutter; 8. an upper limit roller; 9. a lower limit roller; 10. a limiting chute; 11. a second motor; 12. a connecting shaft; 13. a screw rod; 14. a threaded slider; 15. a movable rod; 16. a connecting plate; 17. moving the plate; 18. a pressure lever; 19. a limiting sliding plate; 20. an elastic telescopic rod; 21. a fixing plate; 22. a sliding sleeve; 23. a connecting rod; 24. a fixed cylinder; 25. a spring; 26. a piston plate.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.
Example 1
The SMMSS super-soft water-repellent non-woven fabric is obtained by sequentially hot-rolling and bonding a spun-bonded non-woven fabric, a melt-blown non-woven fabric, a spun-bonded non-woven fabric and a spun-bonded non-woven fabric from top to bottom, and then winding, detecting, unwinding and slitting;
the spun-bonded non-woven fabric is prepared from the following raw materials in parts by weight: 92 parts of polypropylene, 3 parts of water-repellent master batch, 0.5 part of soft master batch and 2 parts of coupling agent; the melt-blown non-woven fabric is composed of the following raw materials in parts by weight: 92 parts of polypropylene master batch, 3 parts of water-repellent master batch, 0.5 part of soft master batch and 2 parts of coupling agent;
the water-repellent master batch is fluorine-silicon modified acrylate; the soft master batch is prepared from the following raw materials in parts by weight: 75 parts of polypropylene homopolymer, 14 parts of oleamide and 0.3 part of di-tert-butyl peroxide; the coupling agent is one of KH570, KH560 and KH 550.
The preparation process of the spun-bonded non-woven fabric comprises the following steps:
the first step is as follows: adding the polypropylene fibers, the water-repellent master batches, the soft master batches and the coupling agent in parts by weight into a mixing tank, and stirring and mixing;
the second step is that: taking the raw materials after the melt is metered, and carrying out die head spinning; obtaining a spinning jet;
the third step: spinning, dividing and lapping to obtain a woven sheet, and passing the woven sheet between a pattern roller and a smooth roller to perform hot rolling treatment; hot rolling treatment, wherein the temperature of a patterned roller is 145 ℃, and the temperature of a smooth roller is 130 ℃; the speed of the mesh belt is 630m/min, the speed ratio of the hot rolling mill is 0.8 percent, the speed ratio of the cold water roller is 1.0 percent, the hot rolling pressure is 80daN/cm, and the spunbonded non-woven fabric is obtained through feeding, winding and slitting.
The parameters of the die head spinning process are as follows: bellows pressure 2900 pa; the rotating speed ratio of the fan is 80 percent; the temperature of the upper and lower cold air is 18 ℃, the three zones of the single body suction air volume are 1300m3/h。
The preparation process of the melt-blown non-woven fabric comprises the following steps:
adding the polypropylene master batches, the water-repellent master batches, the soft master batches and the coupling agent in parts by weight into a mixing tank, and stirring and mixing; then, carrying out melt blending granulation by a double-screw extruder, wherein the melt blending granulation temperature of the double-screw extruder is 190 ℃; and after the melt-blown process, the melt-blown non-woven fabric is obtained through liquid feeding, winding and slitting.
The melt-blown process parameters are as follows: the hot air pressure is 0.08Mpa, the hot air temperature is 250 ℃, the filter screen temperature is 220 ℃, the metering pump temperature is 220 ℃, the spray head temperature is 220 ℃, the extruder temperature is 200 ℃, and the receiving distance is 20 cm.
The preparation process of the water-repellent master batch comprises the following steps:
the first step is as follows: preparing a mixed monomer I copolymer from methyl methacrylate, butyl acrylate and dodecafluoroheptyl methacrylate, wherein the glass transition temperature of the mixed monomer I copolymer is about-5 ℃, and adding an initiator solution;
the second step is that: adding 3 parts of ammonia water, 0.5 part of SDS (sodium dodecyl sulfate), 1.0 part of OP-10 and 50 parts of water into a reaction kettle, stirring for 20 minutes, and heating to 50 ℃; adding 2 parts of gamma-methacryloxypropyltrimethoxysilane into the reaction kettle for 0.5 hour, and reacting for 12 hours to obtain a product solution;
the third step: and heating the product solution to 78 ℃, dropwise adding the mixed monomer I copolymer and the initiator solution into the heated product solution for 3 hours, preserving the heat for 20 minutes after dropwise adding, heating to 83 ℃, preserving the heat for 2 hours, cooling to 40 ℃, filtering and discharging to obtain the water-repellent master batch.
The initiator solution was prepared by dissolving 1.0 part of initiator potassium persulfate in 15 parts of water.
The weight portion ratio of methyl methacrylate, butyl acrylate and dodecafluoroheptyl methacrylate is 10.0: 10.0: 5.0.
example 2
The SMMSS super-soft water-repellent non-woven fabric is obtained by sequentially hot-rolling and bonding a spun-bonded non-woven fabric, a melt-blown non-woven fabric, a spun-bonded non-woven fabric and a spun-bonded non-woven fabric from top to bottom, and then winding, detecting, unwinding and slitting;
the spun-bonded non-woven fabric is prepared from the following raw materials in parts by weight: 94 parts of polypropylene, 4 parts of water-repellent master batch, 1.0 part of soft master batch and 3 parts of coupling agent; the melt-blown non-woven fabric is composed of the following raw materials in parts by weight: 94 parts of polypropylene master batch, 4 parts of water-repellent master batch, 1.0 part of soft master batch and 3 parts of coupling agent;
the water-repellent master batch is fluorine-silicon modified acrylate; the soft master batch is prepared from the following raw materials in parts by weight: 80 parts of polypropylene homopolymer, 18 parts of oleamide and 0.6 part of di-tert-butyl peroxide; the coupling agent is one of KH570, KH560 and KH 550.
The preparation process of the spun-bonded non-woven fabric comprises the following steps:
the first step is as follows: adding the polypropylene fibers, the water-repellent master batches, the soft master batches and the coupling agent in parts by weight into a mixing tank, and stirring and mixing;
the second step is that: taking the raw materials after the melt is metered, and carrying out die head spinning; obtaining a spinning jet;
the third step: spinning, dividing and lapping to obtain a woven sheet, and passing the woven sheet between a pattern roller and a smooth roller to perform hot rolling treatment; hot rolling treatment, wherein the temperature of a patterned roller is 145 ℃, and the temperature of a smooth roller is 130 ℃; the speed of the mesh belt is 630m/min, the speed ratio of the hot rolling mill is 0.8 percent, the speed ratio of the cold water roller is 1.0 percent, the hot rolling pressure is 80daN/cm, and the spunbonded non-woven fabric is obtained through feeding, winding and slitting.
The parameters of the die head spinning process are as follows: bellows pressure 2900 pa; the rotating speed ratio of the fan is 81 percent; the temperature of the upper and lower cold air is 18 ℃, the three zones of the single body suction air volume are 1300m3/h。
The preparation process of the melt-blown non-woven fabric comprises the following steps:
adding the polypropylene master batches, the water-repellent master batches, the soft master batches and the coupling agent in parts by weight into a mixing tank, and stirring and mixing; then, carrying out melt blending granulation by a double-screw extruder, wherein the melt blending granulation temperature of the double-screw extruder is 190 ℃; and after the melt-blown process, the melt-blown non-woven fabric is obtained through liquid feeding, winding and slitting.
The melt-blown process parameters are as follows: the hot air pressure is 0.08Mpa, the hot air temperature is 250 ℃, the filter screen temperature is 220 ℃, the metering pump temperature is 220 ℃, the spray head temperature is 220 ℃, the extruder temperature is 200 ℃, and the receiving distance is 20 cm.
The preparation process of the water-repellent master batch comprises the following steps:
the first step is as follows: preparing a mixed monomer I copolymer from methyl methacrylate, butyl acrylate and dodecafluoroheptyl methacrylate, wherein the glass transition temperature of the mixed monomer I copolymer is about-5 ℃, and adding an initiator solution;
the second step is that: adding 3 parts of ammonia water, 0.5 part of SDS (sodium dodecyl sulfate), 1.0 part of OP-10 and 50 parts of water into a reaction kettle, stirring for 20 minutes, and heating to 50 ℃; adding 2 parts of gamma-methacryloxypropyltrimethoxysilane into the reaction kettle for 0.5 hour, and reacting for 12 hours to obtain a product solution;
the third step: and heating the product solution to 78 ℃, dropwise adding the mixed monomer I copolymer and the initiator solution into the heated product solution for 3 hours, preserving the heat for 20 minutes after dropwise adding, heating to 83 ℃, preserving the heat for 2 hours, cooling to 40 ℃, filtering and discharging to obtain the water-repellent master batch.
The initiator solution was prepared by dissolving 1.0 part of initiator potassium persulfate in 15 parts of water.
The weight portion ratio of methyl methacrylate, butyl acrylate and dodecafluoroheptyl methacrylate is 20.0: 20.0: 5.5.0.
example 3
The SMMSS super-soft water-repellent non-woven fabric is obtained by sequentially hot-rolling and bonding a spun-bonded non-woven fabric, a melt-blown non-woven fabric, a spun-bonded non-woven fabric and a spun-bonded non-woven fabric from top to bottom, and then winding, detecting, unwinding and slitting;
the spun-bonded non-woven fabric is prepared from the following raw materials in parts by weight: 96 parts of polypropylene, 5 parts of water-repellent master batch, 1.5 parts of soft master batch and 5 parts of coupling agent; the melt-blown non-woven fabric is composed of the following raw materials in parts by weight: 96 parts of polypropylene master batch, 5 parts of water-repellent master batch, 1.5 parts of soft master batch and 5 parts of coupling agent;
the water-repellent master batch is fluorine-silicon modified acrylate; the soft master batch is prepared from the following raw materials in parts by weight: 85 parts of polypropylene homopolymer, 24 parts of oleamide and 0.9 part of di-tert-butyl peroxide; the coupling agent is one of KH570, KH560 and KH 550.
The preparation process of the spun-bonded non-woven fabric comprises the following steps:
the first step is as follows: adding the polypropylene fibers, the water-repellent master batches, the soft master batches and the coupling agent in parts by weight into a mixing tank, and stirring and mixing;
the second step is that: taking the raw materials after the melt is metered, and carrying out die head spinning; obtaining a spinning jet;
the third step: spinning, dividing and lapping to obtain a woven sheet, and passing the woven sheet between a pattern roller and a smooth roller to perform hot rolling treatment; hot rolling treatment, wherein the temperature of a patterned roller is 145 ℃, and the temperature of a smooth roller is 130 ℃; the speed of the mesh belt is 630m/min, the speed ratio of the hot rolling mill is 0.8 percent, the speed ratio of the cold water roller is 1.0 percent, the hot rolling pressure is 80daN/cm, and the spunbonded non-woven fabric is obtained through feeding, winding and slitting.
The parameters of the die head spinning process are as follows: bellows pressure 2900 pa; the fan rotation speed ratio is 82%; the temperature of the upper and lower cold air is 18 ℃, the three zones of the single body suction air volume are 1300m3/h。
The preparation process of the melt-blown non-woven fabric comprises the following steps:
adding the polypropylene master batches, the water-repellent master batches, the soft master batches and the coupling agent in parts by weight into a mixing tank, and stirring and mixing; then, carrying out melt blending granulation by a double-screw extruder, wherein the melt blending granulation temperature of the double-screw extruder is 190 ℃; and after the melt-blown process, the melt-blown non-woven fabric is obtained through liquid feeding, winding and slitting.
The melt-blown process parameters are as follows: the hot air pressure is 0.08Mpa, the hot air temperature is 250 ℃, the filter screen temperature is 220 ℃, the metering pump temperature is 220 ℃, the spray head temperature is 220 ℃, the extruder temperature is 200 ℃, and the receiving distance is 20 cm.
The preparation process of the water-repellent master batch comprises the following steps:
the first step is as follows: preparing a mixed monomer I copolymer from methyl methacrylate, butyl acrylate and dodecafluoroheptyl methacrylate, wherein the glass transition temperature of the mixed monomer I copolymer is about-5 ℃, and adding an initiator solution;
the second step is that: adding 3 parts of ammonia water, 0.5 part of SDS (sodium dodecyl sulfate), 1.0 part of OP-10 and 50 parts of water into a reaction kettle, stirring for 20 minutes, and heating to 50 ℃; adding 2 parts of gamma-methacryloxypropyltrimethoxysilane into the reaction kettle for 0.5 hour, and reacting for 12 hours to obtain a product solution;
the third step: and heating the product solution to 78 ℃, dropwise adding the mixed monomer I copolymer and the initiator solution into the heated product solution for 3 hours, preserving the heat for 20 minutes after dropwise adding, heating to 83 ℃, preserving the heat for 2 hours, cooling to 40 ℃, filtering and discharging to obtain the water-repellent master batch.
The initiator solution was prepared by dissolving 1.0 part of initiator potassium persulfate in 15 parts of water.
The weight ratio of methyl methacrylate, butyl acrylate and dodecafluoroheptyl methacrylate is 30.0, 30.0 and 10.0.
Example 4
Referring to fig. 1-5, the winding process includes the following steps:
the non-woven fabric penetrates through an upper limiting roller 8 and a lower limiting roller 9 on the base 2 and is wound on a winding roller 4, and then the first motor 3 is started to work to drive the winding roller 4 to wind the non-woven fabric;
after the winding is finished, the second motor 11 is controlled to rotate to drive the screw rod 13 to rotate, the screw rod 13 drives the threaded slide block 14 and the moving plate 17 to move respectively, when the moving plate 17 moves downwards, the pressing rod 18 is driven to move downwards, the pressing rod 18 acts on the limiting sliding plate 19, the limiting sliding plate 19 moves downwards, the cutter 7 moves downwards, and the non-woven fabric is cut; simultaneously, two sets of screw sliders 14 keep away from each other and remove, then, through the connection of movable rod 15 and connecting plate 16, drive connecting axle 12 and remove to the inner chamber of base 2 along sliding sleeve 22 to make the distance between two sets of splint 5 increase, dismantle the non-woven fabrics that will wrap up from wind-up roll 4.
The base 2 is arranged on the support 1, a winding mechanism and a cutting mechanism are arranged on the base 2, the winding mechanism is positioned right above the cutting mechanism, and a driving mechanism is arranged in an inner cavity of the base 2;
the winding mechanism comprises a first motor 3, a winding roller 4 and clamping plates 5, wherein the first motor 3 is arranged on one side of the bracket 1, the output end of the first motor 3 penetrates through the vertical part of the bracket 1 and is connected with one group of clamping plates 5, the other group of clamping plates 5 are connected with a fixing part, and the winding roller 4 is arranged between the two groups of clamping plates 5; the winding mechanism has the advantages of simple structure and high winding efficiency;
the fixing piece comprises a connecting shaft 12, a threaded slider 14, a movable rod 15, a connecting plate 16 and a sliding sleeve 22, wherein the threaded sliders 14 are arranged in two groups in parallel, the threaded sliders 14 are connected with the inner wall of the base 2 in a sliding manner, one end of the movable rod 15 is movably connected with the connecting plate 16, the other end of the movable rod 15 is movably connected with the threaded sliders 14, the connecting shaft 12 is connected with the connecting plate 16, the connecting shaft 12 penetrates through the sliding sleeve 22, and is connected with a sliding sleeve 22, the connecting shaft 12 is connected with another group of clamping plates 5, the sliding sleeve 22 is arranged on the side wall of the base 2, the threaded sliding blocks 14 are connected with the output end of the driving mechanism to control the driving mechanism to work and drive the two groups of threaded sliding blocks 14 to move close to or away from each other, then, through the connection of the movable rod 15 and the connecting plate 16, the connecting shaft 12 is driven to move along the sliding sleeve 22, thereby adjusting the distance between the two groups of clamping plates 5 and facilitating the clamping and the disassembly of the wind-up roll 4; wherein, the sliding sleeve 22 plays a role of limiting sliding for the movement of the connecting shaft 12;
the cutting mechanism comprises a mounting plate 6, a cutting knife 7, an upper limiting roller 8, a lower limiting roller 9 and a limiting sliding groove 10, wherein the rectangular cutting knife 7 is arranged on the bottom surface of the mounting plate 6, a base is arranged on the inner wall of the mounting plate 2, the two ends of the mounting plate 6 are positioned in the limiting sliding groove 10 and move up and down along the limiting sliding groove 10, one end of the mounting plate 6 extends onto a control piece, two groups of upper limiting rollers 8 and lower limiting rollers 9 are arranged below the mounting plate 6 in parallel, the upper limiting rollers 8 and the lower limiting rollers 9 are mounted on the base 2, a rectangular groove body is arranged on the upper limiting roller 8, and the cutting knife 7 penetrates through the groove body and moves up and down along the groove body; when the SMMSS cotton soft water-repellent non-woven fabric is rolled, the SMMSS cotton soft water-repellent non-woven fabric needs to pass through the upper limiting roller 8 and the lower limiting roller 9, the upper limiting roller 8 and the lower limiting roller 9 play a limiting role, so that the non-woven fabric is rolled more orderly, the upper limiting roller 8 is provided with a groove body matched with the cutter 7, a blade of the cutter 7 is hidden into the upper limiting roller 8, the blade cannot contact with the non-woven fabric when being rolled, meanwhile, the movement of the cutter 7 is limited, and after the rolling is finished, the cutter 7 is controlled to move downwards along the groove body to cut the non-woven fabric;
the control part comprises a moving plate 17, pressure rods 18, a limiting sliding plate 19, an elastic telescopic rod 20 and a fixing plate 21, the moving plate 17 is connected with the inner wall of the base 2 in a sliding manner, the moving plate 17 is connected with the output end of the driving mechanism, two groups of pressure rods 18 are symmetrically arranged on the bottom surface of the moving plate 17, the limiting sliding plate 19 is arranged below the moving plate 17, the limiting sliding plate 19 is connected with the inner wall of the base 2 in a sliding manner, one end of the mounting plate 6 extends onto the limiting sliding plate 19 and is connected with the limiting sliding plate 19, the limiting sliding plate 19 is connected with the fixing plate 21 through the elastic telescopic rod 20, the elastic telescopic rods 20 are arranged in; the movable plate 17 is controlled to move downwards to drive the pressure lever 18 to move downwards, the pressure lever 18 acts on the limiting sliding plate 19 to enable the limiting sliding plate 19 to move downwards, and the limiting sliding plate 19 is connected with the mounting plate 6 on the cutter 7, so that the cutter 7 moves downwards to cut the non-woven fabric;
the elastic telescopic rod 20 comprises a connecting rod 23, a fixed cylinder 24, a spring 25 and a piston plate 26, the fixed cylinder 24 is installed on the fixed plate 21, the spring 25 is arranged in the inner cavity of the fixed cylinder 24, the top end of the spring 25 is connected with the piston plate 26, the piston plate 26 is in sliding connection with the inner wall of the fixed cylinder 24, the connecting rod 23 is arranged on the top surface of the piston plate 26, and the top end of the connecting rod 23 penetrates through the fixed cylinder 24 and is connected with the limiting sliding plate 19; the elastic telescopic rod 20 plays a role in elastic recovery, when the cutting knife 7 finishes cutting, the movable plate 17 moves upwards and resets, and the limiting sliding plate 19 also resets through the elastic acting force of the spring 25 in the elastic telescopic rod 20, so that the cutting knife 7 restores to the original position;
actuating mechanism includes second motor 11, lead screw 13, second motor 11 is installed on the top surface of base 2, the output and the lead screw 13 of second motor 11 are connected, lead screw 13 extends to in the inner chamber of base 2, and respectively with screw slider 14 and movable plate 17 threaded connection, control second motor 11 just reverse rotation, it rotates to drive lead screw 13, lead screw 13 drives screw slider 14 and movable plate 17 respectively and removes, thereby make when cutting the non-woven fabrics take off the non-woven fabrics that the rolling is good from wind-up roll 4, thereby the efficiency to the rolling of non-woven fabrics has been improved, so as to improve the cotton soft water non-woven fabrics whole production's of refusing efficiency of SMMSS.
The working principle of the invention is as follows: the non-woven fabric passes through the upper limiting roller 8 and the lower limiting roller 9 and is wound on the winding roller 4, and then the first motor 3 is started to work to drive the winding roller 4 to wind the non-woven fabric;
after the winding is finished, the second motor 11 is controlled to rotate forwards and backwards to drive the screw rod 13 to rotate, the screw rod 13 drives the threaded slide block 14 and the moving plate 17 to move respectively, when the moving plate 17 moves downwards, the pressing rod 18 is driven to move downwards, the pressing rod 18 acts on the limiting sliding plate 19 to enable the limiting sliding plate 19 to move downwards, and the limiting sliding plate 19 is connected with the mounting plate 6 on the cutter 7, so that the cutter 7 moves downwards to cut the non-woven fabric; meanwhile, the two groups of threaded sliders 14 move away from each other, and then the connecting shaft 12 is driven to move towards the inner cavity of the base 2 along the sliding sleeve 22 through the connection of the movable rod 15 and the connecting plate 16, so that the distance between the two groups of clamping plates 5 is increased, and the wound non-woven fabric can be directly dismounted from the winding roller 4; according to the invention, after the non-woven fabric is rolled, the driving mechanism is controlled to work, so that the non-woven fabric can be cut off and the rolling roller 4 for rolling the non-woven fabric can be taken down at the same time, and the working efficiency for rolling the non-woven fabric is greatly improved.
Comparative example 1
Comparative example 1 is a nonwoven fabric provided in chinese patent CN 202202113U;
the nonwoven fabrics of examples 1 to 3 and comparative example 1 were subjected to softness performance test and water-tack performance test, and the test results are shown in the following table;
the softness performance test adopts a test sample with a square of 100 cm, and the test sample is divided into round blocks after cutting. Each round is placed in the center of the test plate. A weight of a certain weight is put on the test specimen. The plunger is pressed against the test by a nozzle. The softness test value data is expressed as 1-10. The higher the value, the better the softness and the higher the quality. The softness is described as: hard (0) to soft (10) values;
the viscous water performance test adopts a spray tester, the test is carried out according to AATCC22-2010, the size of a sample is 180mm by 180mm, and the spray time of each sample is controlled to be 25-30 s: evaluation grade of experimental results: AATCC 0-complete wetting of the entire sample surface; AATCC 50-drenched surface completely wetted; AATCC70, wetting the sample surface beyond the spraying point, wherein the wetting area is about half of the surface to be sprayed, and the spraying point of the AATCC 80-sample surface is wetted; AATCC 90-the surface of the sample is wetted at sporadic spray points; AATCC 100-no water drop or wetting of the sample surface;
softness Viscosity grade
Example 1 10 AATCC100
Example 2 10 AATCC100
Example 3 10 AATCC100
Comparative example 1 4 AATCC50
As can be seen from the above table, the softness of the nonwoven fabric of the present invention is 10, and the water-tack rating is such that no water drops or wetting occurs on the surface of the sample; compared with the non-woven fabric of comparative example 1, the non-woven fabric has good softness and water repellency.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (9)

  1. The production process of SMMSS cotton soft water-repellent non-woven fabric is characterized by comprising the following steps: the SMMSS super-soft water-repellent non-woven fabric is prepared by sequentially hot-rolling and bonding a spun-bonded non-woven fabric, a melt-blown non-woven fabric, a spun-bonded non-woven fabric and a spun-bonded non-woven fabric from top to bottom, and then winding, detecting, unwinding and slitting;
    the spun-bonded non-woven fabric is prepared from the following raw materials in parts by weight: 92-96 parts of polypropylene, 3-5 parts of water-repellent master batch, 0.5-1.5 parts of soft master batch and 2-5 parts of coupling agent; the melt-blown non-woven fabric is composed of the following raw materials in parts by weight: 92-96 parts of polypropylene master batch, 3-5 parts of water-repellent master batch, 0.5-1.5 parts of soft master batch and 2-5 parts of coupling agent;
    the water-repellent master batch is fluorine-silicon modified acrylate; the soft master batch is prepared from the following raw materials in parts by weight: 75-85 parts of polypropylene homopolymer, 14-24 parts of oleamide and 0.3-0.9 part of di-tert-butyl peroxide; the coupling agent is one of KH570, KH560 and KH 550.
  2. 2. The SMMSS cotton soft water-repellent non-woven fabric production process according to claim 1, characterized in that the spun-bonded non-woven fabric preparation process comprises the following steps:
    the first step is as follows: adding the polypropylene fibers, the water-repellent master batches, the soft master batches and the coupling agent in parts by weight into a mixing tank, and stirring and mixing;
    the second step is that: taking the raw materials after the melt is metered, and carrying out die head spinning; obtaining a spinning jet;
    the third step: spinning, dividing and lapping to obtain a woven sheet, and passing the woven sheet between a pattern roller and a smooth roller to perform hot rolling treatment; hot rolling treatment, wherein the temperature of a patterned roller is 145 ℃, and the temperature of a smooth roller is 130 ℃; the speed of the mesh belt is 630m/min, the speed ratio of the hot rolling mill is 0.8 percent, the speed ratio of the cold water roller is 1.0 percent, the hot rolling pressure is 80daN/cm, and the spunbonded non-woven fabric is obtained through feeding, winding and slitting.
  3. 3. The SMMSS cotton soft water-repellent non-woven fabric production process according to claim 2, characterized in that the parameters of the die head spinning process are as follows: bellows pressure 2900 pa; the rotating speed ratio of the fan is 80-82%; the temperature of the upper and lower cold air is 18 ℃, the three zones of the single body suction air volume are 1300m3/h。
  4. 4. The SMMSS cotton soft water-repellent non-woven fabric production process according to claim 1, characterized in that the melt-blown non-woven fabric preparation process comprises the following steps:
    adding the polypropylene master batches, the water-repellent master batches, the soft master batches and the coupling agent in parts by weight into a mixing tank, and stirring and mixing; then, carrying out melt blending granulation by a double-screw extruder, wherein the melt blending granulation temperature of the double-screw extruder is 190 ℃; and after the melt-blown process, the melt-blown non-woven fabric is obtained through liquid feeding, winding and slitting.
  5. 5. The SMMSS cotton soft water-repellent non-woven fabric production process according to claim 4, characterized in that the melt-blowing process parameters are as follows: the hot air pressure is 0.08Mpa, the hot air temperature is 250 ℃, the filter screen temperature is 220 ℃, the metering pump temperature is 220 ℃, the spray head temperature is 220 ℃, the extruder temperature is 200 ℃, and the receiving distance is 20 cm.
  6. 6. The SMMSS cotton soft water-repellent non-woven fabric production process is characterized in that the water-repellent master batch preparation process comprises the following steps:
    the first step is as follows: preparing a mixed monomer I copolymer from methyl methacrylate, butyl acrylate and dodecafluoroheptyl methacrylate, wherein the glass transition temperature of the mixed monomer I copolymer is about-5 ℃, and adding an initiator solution;
    the second step is that: adding 3 parts of ammonia water, 0.5 part of SDS (sodium dodecyl sulfate), 1.0 part of OP-10 and 50 parts of water into a reaction kettle, stirring for 20 minutes, and heating to 50 ℃; adding 2 parts of gamma-methacryloxypropyltrimethoxysilane into the reaction kettle for 0.5 hour, and reacting for 12 hours to obtain a product solution;
    the third step: and heating the product solution to 78 ℃, dropwise adding the mixed monomer I copolymer and the initiator solution into the heated product solution for 3 hours, preserving the heat for 20 minutes after dropwise adding, heating to 83 ℃, preserving the heat for 2 hours, cooling to 40 ℃, filtering and discharging to obtain the water-repellent master batch.
  7. 7. The SMMSS cotton soft water repellent nonwoven fabric production process according to claim 6, characterized in that the initiator solution is made by dissolving 1.0 part of initiator potassium persulfate in 15 parts of water.
  8. 8. The SMMSS cotton soft water repellent non-woven fabric production process according to claim 6, characterized in that the weight portion ratio of methyl methacrylate, butyl acrylate and dodecafluoroheptyl methacrylate is 10.0-30.0: 10.0-30.0: 5.0-10.0.
  9. 9. The production process of SMMSS cotton soft water-repellent non-woven fabric according to claim 1, characterized in that a winding mechanism is adopted in the production process of SMMSS super-soft hydrophilic non-woven fabric, and the working method of the winding mechanism comprises the following steps: the non-woven fabric penetrates through an upper limiting roller (8) and a lower limiting roller (9) on the base (2) and is wound on a winding roller (4), and then a first motor (3) is started to work to drive the winding roller (4) to wind the non-woven fabric;
    after the winding is finished, the second motor (11) is controlled to rotate to drive the screw rod (13) to rotate, the screw rod (13) drives the threaded slide block (14) and the movable plate (17) to move respectively, when the movable plate (17) moves downwards, the pressure rod (18) is driven to move downwards, the pressure rod (18) acts on the limiting slide plate (19), the limiting slide plate (19) moves downwards, the cutter (7) moves downwards, and the non-woven fabric is cut; simultaneously, two sets of screw thread slider (14) keep away from each other and remove, then, through the connection of movable rod (15) and connecting plate (16), drive connecting axle (12) and remove to the inner chamber of base (2) along sliding sleeve (22) to make the distance between two sets of splint (5) increase, dismantle the non-woven fabrics that will wrap up from wind-up roll (4).
CN202110620542.9A 2021-06-03 2021-06-03 Production process of SMMSS cotton soft water-repellent non-woven fabric Withdrawn CN113355806A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114606656A (en) * 2022-02-21 2022-06-10 山东道恩斯维特科技有限公司 Soft water-repellent edge-separated nonwoven fabric for hygiene and method for producing the same
CN114908479A (en) * 2022-05-18 2022-08-16 江阴市宏勇医疗科技发展有限公司 Production method of high-filtering low-resistance double-layer melt-blown non-woven fabric for medical and health materials
CN115233380A (en) * 2022-03-29 2022-10-25 俊富非织造材料有限公司 High-barrier spinning-melting composite non-woven fabric with moisture absorption at one side and production method thereof
WO2023216810A1 (en) * 2022-05-10 2023-11-16 东营俊富净化科技有限公司 Preparation method for sm non-woven fabric for roof slip resistance

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114606656A (en) * 2022-02-21 2022-06-10 山东道恩斯维特科技有限公司 Soft water-repellent edge-separated nonwoven fabric for hygiene and method for producing the same
CN114606656B (en) * 2022-02-21 2023-02-24 山东道恩斯维特科技有限公司 Soft water-repellent edge-separated nonwoven fabric for hygiene and method for producing the same
CN115233380A (en) * 2022-03-29 2022-10-25 俊富非织造材料有限公司 High-barrier spinning-melting composite non-woven fabric with moisture absorption at one side and production method thereof
WO2023216810A1 (en) * 2022-05-10 2023-11-16 东营俊富净化科技有限公司 Preparation method for sm non-woven fabric for roof slip resistance
CN114908479A (en) * 2022-05-18 2022-08-16 江阴市宏勇医疗科技发展有限公司 Production method of high-filtering low-resistance double-layer melt-blown non-woven fabric for medical and health materials
CN114908479B (en) * 2022-05-18 2023-09-26 江阴市宏勇医疗科技发展有限公司 Production method of high-filtration low-resistance double-layer melt-blown non-woven fabric for medical and health materials

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Application publication date: 20210907