CN113106631A - Waterproof and oilproof elastic soft non-woven fabric and manufacturing process thereof - Google Patents
Waterproof and oilproof elastic soft non-woven fabric and manufacturing process thereof Download PDFInfo
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- CN113106631A CN113106631A CN202110365041.0A CN202110365041A CN113106631A CN 113106631 A CN113106631 A CN 113106631A CN 202110365041 A CN202110365041 A CN 202110365041A CN 113106631 A CN113106631 A CN 113106631A
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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
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
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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
- D04H3/10—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 yarns or filaments made mechanically
- D04H3/11—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 yarns or filaments made mechanically by fluid jet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
Abstract
The invention discloses a waterproof and oilproof elastic soft non-woven fabric and a manufacturing process thereof, wherein the waterproof and oilproof elastic soft non-woven fabric is prepared from the following raw materials in parts by weight: 65-75 parts of polypropylene, 16-22 parts of maleic anhydride grafted ethylene-octene copolymer, 8-13 parts of PP-g-AA grafted copolymer, 2-4 parts of amino modified polysiloxane emulsion, 5-8 parts of polyvinylidene fluoride-hexafluoropropylene copolymer, 4-7 parts of polyacrylic acid fluorine-containing ester and 9-15 parts of filler. The waterproof and oilproof elastic soft non-woven fabric has good waterproof and oilproof effects, is durable in waterproof and oilproof effects, is not easy to lose the waterproof and oilproof properties after contacting with a solvent or washing or rubbing with other objects, and has good elasticity and softness, no irritation to skin and high wearing comfort.
Description
The invention relates to a divisional application of an invention patent application with the application number of 201911020981.5, the application date of 2019, 10 and 25 months and the name of 'water-proof and oil-proof non-woven fabric and a manufacturing process thereof'.
Technical Field
The invention relates to the technical field of non-woven fabrics, in particular to a waterproof and oilproof elastic soft non-woven fabric and a manufacturing process thereof.
Background
The fiber for producing the non-woven fabric is mainly polypropylene (PP) and Polyester (PET). In addition, there are Polyamide (PA), viscose, acrylic, polyethylene (HDPE), polyvinyl chloride (PVC). The non-woven fabric is classified into a disposable type and a durable type according to application requirements.
The production process comprises the following steps:
1. water-jetting non-woven fabric: the spunlace process is to spray high-pressure fine water flow onto one or more layers of fiber webs to entangle the fibers with each other, so that the fiber webs are reinforced and have certain strength.
2. Heat sealing the non-woven fabric: the thermal bonding non-woven fabric is formed by adding fibrous or powdery hot melt bonding reinforcing materials into a fiber web, and heating, melting, cooling and reinforcing the fiber web into a fabric.
3. Pulp air-laid nonwoven fabric: airlaid nonwoven fabrics may also be referred to as airlaid paper and dry papermaking nonwoven fabrics. It adopts the air-laid technology to open the wood pulp fiber board into single fiber state, then uses the air-laid method to make the fiber agglutinate on the net-forming curtain, then the net is consolidated into cloth.
4. Wet non-woven fabric: the wet-process non-woven fabric is made up through opening the raw fibre material in water medium to obtain single fibre, mixing different fibre materials to obtain fibre suspension pulp, delivering the suspension pulp to net-forming mechanism, and wet-forming and solidifying.
5. Spun-bonded nonwoven fabric: spunbond nonwoven fabrics are nonwoven fabrics formed by extruding and drawing a polymer to form continuous filaments, laying the filaments into a web, and then converting the web into a nonwoven fabric by autogenous bonding, thermal bonding, chemical bonding, or mechanical consolidation.
6. Melt-blown nonwoven fabric: the process of melt-blown non-woven fabric comprises the following steps: polymer feeding, melt extrusion, fiber formation, fiber cooling, web forming and cloth reinforcement.
7. Needling the non-woven fabric: the needle-punched non-woven fabric is one of dry non-woven fabrics, and the needle-punched non-woven fabric is formed by reinforcing a fluffy fiber web into a fabric by utilizing the piercing effect of a needle.
8. Stitching and knitting non-woven fabrics: stitchbonded nonwovens are one type of dry-laid nonwovens that are made by consolidating webs, layers of yarn, nonwoven materials (e.g., plastic sheets, plastic foils, etc.), or combinations thereof, with a warp-knitted loop structure.
9. Hydrophilic non-woven fabric: the method is mainly used for producing medical and sanitary materials so as to obtain better hand feeling and prevent the skin from being scratched. Like sanitary napkins and sanitary pads, the hydrophilic function of hydrophilic nonwoven fabrics is utilized.
Polypropylene fibers can be classified into long fibers, short fibers, spunbonded nonwoven fabrics, meltblown nonwoven fabrics, and the like. The polypropylene long fiber can be divided into common long fiber and fine denier long fiber (filament number is less than or equal to 2.2dtex), and can be used for producing long fiber products for clothing, decoration and part of industries. The polypropylene fine denier filament has good luster, soft hand feeling, good drapability and small density, is suitable for the knitting industry, and is an ideal material for manufacturing high-grade sportswear, T-shirts and the like when being interwoven with cotton, viscose, real silk, spandex and the like into products such as cotton covered polypropylene, silk covered polypropylene and the like.
However, the water-and oil-repellent elastic soft nonwoven fabrics currently used have the following problems:
1. the existing preparation method of the waterproof and oilproof elastic soft non-woven fabric is to manufacture non-woven fabric without functionality firstly, and then immerse the non-woven fabric into a three-proofing finishing agent for impregnation so as to prepare the non-woven fabric with waterproof and oilproof performances, but although the method has various polymers, the obtained waterproof and oilproof elastic soft non-woven fabric has poor waterproof and oilproof performances, and the waterproof and oilproof performances (functions) are temporary, so that the waterproof and oilproof performances are easily lost after the contact with a solvent or the washing or the friction with other objects;
2. the waterproof and oilproof elastic soft non-woven fabric is poor in elasticity, low in softness, slightly irritant to skin and poor in comfort.
Disclosure of Invention
Based on the above situation, the present invention aims to provide a waterproof and oilproof elastic soft nonwoven fabric and a manufacturing process thereof, which can effectively solve the above problems.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the waterproof and oilproof elastic soft non-woven fabric is prepared from the following raw materials in parts by weight: 65-75 parts of polypropylene, 16-22 parts of maleic anhydride grafted ethylene-octene copolymer (the flexibility of polypropylene composite fiber (elastomer) is improved by introducing the maleic anhydride grafted ethylene-octene copolymer with a proper proportion, so that the mechanical property of the finally prepared non-woven fabric is improved), 8-13 parts of PP-g-AA grafted copolymer (AA is acrylic acid, the compatibility of the polypropylene and the maleic anhydride grafted ethylene-octene copolymer is improved by introducing the PP-g-AA grafted copolymer with a proper proportion, the mechanical property is improved), 2-4 parts of amino modified polysiloxane emulsion (the amino modified polysiloxane emulsion is mutually matched with other components by introducing the amino modified polysiloxane emulsion with a proper proportion, a good synergistic effect is achieved, and the amino modified polysiloxane emulsion is mainly used for improving the flexibility of products), 5-8 parts of polyvinylidene fluoride-hexafluoropropylene copolymer, 4-7 parts of polyacrylic acid fluorine-containing ester and 9-15 parts of filler.
Preferably, the waterproof and oilproof elastic soft non-woven fabric is prepared from the following raw materials in parts by weight: 70 parts of polypropylene, 19.3 parts of maleic anhydride grafted ethylene-octene copolymer, 10.5 parts of PP-g-AA grafted copolymer, 3.4 parts of amino modified polysiloxane emulsion, 6.7 parts of polyvinylidene fluoride-hexafluoropropylene copolymer, 5.2 parts of polyacrylic acid fluorine-containing ester and 12 parts of filler.
Preferably, the melting point of the polypropylene is 160-170 ℃, and the melt index is 12-16 g/10 min.
Preferably, the maleic anhydride grafting ratio of the maleic anhydride grafted ethylene-octene copolymer is 0.9-1.2%.
Preferably, the acrylic acid grafting rate of the PP-g-AA graft copolymer is 1.6-2.3%.
Preferably, the filler is nano calcium carbonate.
The invention also provides a manufacturing process of the waterproof and oilproof elastic soft non-woven fabric, which comprises the following steps:
A. weighing the following raw materials in parts by weight: polypropylene, maleic anhydride grafted ethylene-octene copolymer, PP-g-AA grafted copolymer, amino modified polysiloxane emulsion, polyvinylidene fluoride-hexafluoropropylene copolymer, polyacrylic acid fluorine-containing ester and filler;
B. feeding the raw materials into a double-screw extruder to be melted into a mixed melt;
C. the mixed melt enters a composite spinning machine, is sprayed out from a spinneret plate after being distributed, forms strand silk, and then is cooled by blowing, stretched and wound to obtain the polypropylene composite fiber; the fineness of the polypropylene composite fiber is 2-5 dtex;
D. carding the polypropylene composite fibers into a net, then carrying out spunlace reinforcement and drying to obtain the waterproof and oilproof elastic soft non-woven fabric;
preferably, in the step B, the heating section of the double-screw extruder is 6 sections, and the heating temperature is 222-230 ℃, 236-242 ℃, 250-255 ℃, 260-265 ℃, 268-272 ℃ and 272-275 ℃ in sequence.
Preferably, in the step D, when the mixed fibers are carded into a web, the rotating speed of a main cylinder of the carding machine is 700-750 m/min, the rotating speed of a working roller is 50-60 m/min, and the rotating speed of a stripping roller is 65-75 m/min; the number of the spunlace heads used for spunlacing and reinforcing the mixed fiber web is 5-9; the pressure range of the plurality of the water stabs is 30-40 bar.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the waterproof and oilproof elastic soft non-woven fabric is prepared by selecting raw materials, optimizing the content of each raw material, selecting polypropylene, maleic anhydride grafted ethylene-octene copolymer, PP-g-AA grafted copolymer, amino modified polysiloxane emulsion, polyvinylidene fluoride-hexafluoropropylene copolymer, polyacrylic acid fluorine-containing ester and filler in proper proportion, fully playing respective advantages, supplementing each other, promoting each other and improving the quality stability of products, and the prepared waterproof and oilproof elastic soft non-woven fabric does not need to be soaked in a three-proofing finishing agent, has good waterproof and oilproof effects and lasting waterproof and oilproof effects, is not easy to lose the waterproof and oilproof performance after contacting with a solvent or washing or rubbing with other objects, and also has good elasticity (mainly adding the maleic anhydride grafted ethylene-octene copolymer) and softness (mainly adding the amino modified polysiloxane emulsion), has no irritation to skin and high wearing comfort.
The waterproof and oilproof elastic soft non-woven fabric is good in waterproof and oilproof effects, is uniformly dispersed in a base material (such as polypropylene, maleic anhydride grafted ethylene-octene copolymer, PP-g-AA graft copolymerization and the like), is high in bonding strength, is durable in waterproof and oilproof effects, and is not easy to lose the waterproof and oilproof performance after contacting with a solvent or washing or rubbing with other objects.
The invention has simple manufacturing process and simple and convenient operation, and saves manpower and equipment cost.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in connection with specific examples, which should not be construed as limiting the present patent.
The test methods or test methods described in the following examples are conventional methods unless otherwise specified; the reagents and materials, unless otherwise indicated, are conventionally obtained commercially or prepared by conventional methods.
Example 1:
the waterproof and oilproof elastic soft non-woven fabric is prepared from the following raw materials in parts by weight: 65-75 parts of polypropylene, 16-22 parts of maleic anhydride grafted ethylene-octene copolymer, 8-13 parts of PP-g-AA grafted copolymer, 2-4 parts of amino modified polysiloxane emulsion, 5-8 parts of polyvinylidene fluoride-hexafluoropropylene copolymer, 4-7 parts of polyacrylic acid fluorine-containing ester and 9-15 parts of filler.
Preferably, the waterproof and oilproof elastic soft non-woven fabric is prepared from the following raw materials in parts by weight: 70 parts of polypropylene, 19.3 parts of maleic anhydride grafted ethylene-octene copolymer, 10.5 parts of PP-g-AA grafted copolymer, 3.4 parts of amino modified polysiloxane emulsion, 6.7 parts of polyvinylidene fluoride-hexafluoropropylene copolymer, 5.2 parts of polyacrylic acid fluorine-containing ester and 12 parts of filler.
Preferably, the melting point of the polypropylene is 160-170 ℃, and the melt index is 12-16 g/10 min.
Preferably, the maleic anhydride grafting ratio of the maleic anhydride grafted ethylene-octene copolymer is 0.9-1.2%.
Preferably, the acrylic acid grafting rate of the PP-g-AA graft copolymer is 1.6-2.3%.
Preferably, the filler is nano calcium carbonate.
The invention also provides a manufacturing process of the waterproof and oilproof elastic soft non-woven fabric, which comprises the following steps:
A. weighing the following raw materials in parts by weight: polypropylene, maleic anhydride grafted ethylene-octene copolymer, PP-g-AA grafted copolymer, amino modified polysiloxane emulsion, polyvinylidene fluoride-hexafluoropropylene copolymer, polyacrylic acid fluorine-containing ester and filler;
B. feeding the raw materials into a double-screw extruder to be melted into a mixed melt;
C. the mixed melt enters a composite spinning machine, is sprayed out from a spinneret plate after being distributed, forms strand silk, and then is cooled by blowing, stretched and wound to obtain the polypropylene composite fiber; the fineness of the polypropylene composite fiber is 2-5 dtex;
D. carding the polypropylene composite fibers into a net, then carrying out spunlace reinforcement and drying to obtain the waterproof and oilproof elastic soft non-woven fabric;
preferably, in the step B, the heating section of the double-screw extruder is 6 sections, and the heating temperature is 222-230 ℃, 236-242 ℃, 250-255 ℃, 260-265 ℃, 268-272 ℃ and 272-275 ℃ in sequence.
Preferably, in the step D, when the mixed fibers are carded into a web, the rotating speed of a main cylinder of the carding machine is 700-750 m/min, the rotating speed of a working roller is 50-60 m/min, and the rotating speed of a stripping roller is 65-75 m/min; the number of the spunlace heads used for spunlacing and reinforcing the mixed fiber web is 5-9; the pressure range of the plurality of the water stabs is 30-40 bar.
Example 2:
the waterproof and oilproof elastic soft non-woven fabric is prepared from the following raw materials in parts by weight: 65 parts of polypropylene, 16 parts of maleic anhydride grafted ethylene-octene copolymer, 8 parts of PP-g-AA grafted copolymer, 2 parts of amino modified polysiloxane emulsion, 5 parts of polyvinylidene fluoride-hexafluoropropylene copolymer, 4 parts of polyacrylic acid fluorine-containing ester and 9 parts of filler.
In this example, the polypropylene had a melting point of 160 ℃ and a melt index of 12g/10 min.
In this example, the maleic anhydride-grafted ethylene-octene copolymer had a maleic anhydride grafting ratio of 0.9%.
In this example, the acrylic acid grafting ratio of the PP-g-AA graft copolymer was 1.6%.
In this embodiment, the filler is nano calcium carbonate.
In this embodiment, the process for manufacturing the waterproof and oilproof elastic soft nonwoven fabric includes the following steps:
A. weighing the following raw materials in parts by weight: polypropylene, maleic anhydride grafted ethylene-octene copolymer, PP-g-AA grafted copolymer, amino modified polysiloxane emulsion, polyvinylidene fluoride-hexafluoropropylene copolymer, polyacrylic acid fluorine-containing ester and filler;
B. feeding the raw materials into a double-screw extruder to be melted into a mixed melt;
C. the mixed melt enters a composite spinning machine, is sprayed out from a spinneret plate after being distributed, forms strand silk, and then is cooled by blowing, stretched and wound to obtain the polypropylene composite fiber; the fineness of the polypropylene composite fiber is 2 dtex;
D. carding the polypropylene composite fibers into a net, then carrying out spunlace reinforcement and drying to obtain the waterproof and oilproof elastic soft non-woven fabric;
in the present embodiment, in the step B, the heating section of the twin-screw extruder is 6 sections, and the heating temperature is 230 ℃, 242 ℃, 255 ℃, 265 ℃, 272 ℃ and 275 ℃ in sequence.
In the embodiment, in the step D, when the mixed fibers are carded into a web, the rotating speed of a main cylinder of the carding machine is 700m/min, the rotating speed of a working roller is 50m/min, and the rotating speed of a stripping roller is 65 m/min; the number of the spunlace heads used for spunlacing and reinforcing the mixed fiber web is 5; the pressure range of a plurality of the water stabs is 30 bar.
Example 3:
the waterproof and oilproof elastic soft non-woven fabric is prepared from the following raw materials in parts by weight: 75 parts of polypropylene, 22 parts of maleic anhydride grafted ethylene-octene copolymer, 13 parts of PP-g-AA grafted copolymer, 4 parts of amino modified polysiloxane emulsion, 8 parts of polyvinylidene fluoride-hexafluoropropylene copolymer, 7 parts of polyacrylic acid fluorine-containing ester and 15 parts of filler.
In this example, the polypropylene had a melting point of 170 ℃ and a melt index of 16g/10 min.
In this example, the maleic anhydride-grafted ethylene-octene copolymer had a maleic anhydride grafting ratio of 1.2%.
In this example, the acrylic acid grafting ratio of the PP-g-AA graft copolymer was 2.3%.
In this embodiment, the filler is nano calcium carbonate.
In this embodiment, the process for manufacturing the waterproof and oilproof elastic soft nonwoven fabric includes the following steps:
A. weighing the following raw materials in parts by weight: polypropylene, maleic anhydride grafted ethylene-octene copolymer, PP-g-AA grafted copolymer, amino modified polysiloxane emulsion, polyvinylidene fluoride-hexafluoropropylene copolymer, polyacrylic acid fluorine-containing ester and filler;
B. feeding the raw materials into a double-screw extruder to be melted into a mixed melt;
C. the mixed melt enters a composite spinning machine, is sprayed out from a spinneret plate after being distributed, forms strand silk, and then is cooled by blowing, stretched and wound to obtain the polypropylene composite fiber; the fineness of the polypropylene composite fiber is 5 dtex;
D. carding the polypropylene composite fibers into a net, then carrying out spunlace reinforcement and drying to obtain the waterproof and oilproof elastic soft non-woven fabric;
in this example, in step B, the heating zone of the twin-screw extruder was 6 stages, and the heating temperature was 222 ℃, 236 ℃, 250 ℃, 260 ℃, 268 ℃, 272 ℃ in this order.
In the embodiment, in the step D, when the mixed fibers are carded into a web, the rotating speed of a main cylinder of the carding machine is 750m/min, the rotating speed of a working roller is 60m/min, and the rotating speed of a stripping roller is 75 m/min; the number of the spunlace heads used for spunlacing and reinforcing the mixed fiber web is 9; the pressure range of a plurality of the water stabs is 40 bar.
Example 4:
the waterproof and oilproof elastic soft non-woven fabric is prepared from the following raw materials in parts by weight: 70 parts of polypropylene, 19.3 parts of maleic anhydride grafted ethylene-octene copolymer, 10.5 parts of PP-g-AA grafted copolymer, 3.4 parts of amino modified polysiloxane emulsion, 6.7 parts of polyvinylidene fluoride-hexafluoropropylene copolymer, 5.2 parts of polyacrylic acid fluorine-containing ester and 12 parts of filler.
In this example, the polypropylene had a melting point of 165 ℃ and a melt index of 14.5g/10 min.
In this example, the maleic anhydride-grafted ethylene-octene copolymer had a maleic anhydride grafting ratio of 1.1%.
In this example, the acrylic acid grafting ratio of the PP-g-AA graft copolymer was 1.9%.
In this embodiment, the filler is nano calcium carbonate.
In this embodiment, the process for manufacturing the waterproof and oilproof elastic soft nonwoven fabric includes the following steps:
A. weighing the following raw materials in parts by weight: polypropylene, maleic anhydride grafted ethylene-octene copolymer, PP-g-AA grafted copolymer, amino modified polysiloxane emulsion, polyvinylidene fluoride-hexafluoropropylene copolymer, polyacrylic acid fluorine-containing ester and filler;
B. feeding the raw materials into a double-screw extruder to be melted into a mixed melt;
C. the mixed melt enters a composite spinning machine, is sprayed out from a spinneret plate after being distributed, forms strand silk, and then is cooled by blowing, stretched and wound to obtain the polypropylene composite fiber; the fineness of the polypropylene composite fiber is 3 dtex;
D. carding the polypropylene composite fibers into a net, then carrying out spunlace reinforcement and drying to obtain the waterproof and oilproof elastic soft non-woven fabric;
in this example, in step B, the heating zone of the twin-screw extruder was 6 stages, and the heating temperature was 227 ℃, 239 ℃, 252 ℃, 262 ℃, 270 ℃ and 274 ℃ in this order.
In the embodiment, in the step D, when the mixed fibers are carded into a web, the rotating speed of a main cylinder of the carding machine is 720m/min, the rotating speed of a working roller is 55m/min, and the rotating speed of a stripping roller is 70 m/min; the number of the spunlace heads used for spunlacing and reinforcing the mixed fiber web is 7; the pressure range of a plurality of the water stabs is 35 bar.
Comparative example 1:
the difference from example 4 is that no polyvinylidene fluoride-hexafluoropropylene copolymer is present, and the other is the same as example 4.
Comparative example 2:
the difference from example 4 is that no polyacrylic acid fluorinated ester is present, and the other is the same as example 4.
Comparative example 3:
the difference from the example 4 is that the polyvinylidene fluoride-hexafluoropropylene copolymer and the polyacrylic acid fluorine-containing ester are not included, the waterproof and oilproof elastic soft non-woven fabric is obtained and then is finished by adopting Olifubao SLA-NEW three-proofing finishing agent (conventional process), and the rest is the same as the example 4.
Comparative example 4:
common waterproof and oilproof elastic soft non-woven fabrics purchased from the market.
The following performance tests were carried out on the water-and oil-repellent elastic and soft nonwoven fabrics obtained in examples 2 to 4 of the present invention and comparative examples 1 to 4, and the test results are shown in table 1:
TABLE 1
As can be seen from the above table, the waterproof and oilproof elastic soft nonwoven fabric of the present invention has the following advantages: the waterproof and oilproof effect is good and lasting, and the waterproof and oilproof performance is not easy to lose even if the waterproof and oilproof agent is contacted with a solvent or washed or rubbed with other objects afterwards.
The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the invention, and these modifications and adaptations should be considered within the scope of the invention.
Claims (6)
1. The manufacturing process of the waterproof and oilproof elastic soft non-woven fabric is characterized in that the waterproof and oilproof elastic soft non-woven fabric is prepared from the following raw materials in parts by weight: 65-75 parts of polypropylene, 16-22 parts of maleic anhydride grafted ethylene-octene copolymer, 8-13 parts of PP-g-AA grafted copolymer, 2-4 parts of amino modified polysiloxane emulsion, 5-8 parts of polyvinylidene fluoride-hexafluoropropylene copolymer, 4-7 parts of polyacrylic acid fluorine-containing ester and 9-15 parts of filler; the melting point of the polypropylene is 160-170 ℃, and the melt index is 12-16 g/10 min; the maleic anhydride grafting rate of the maleic anhydride grafted ethylene-octene copolymer is 0.9-1.2%; the acrylic acid grafting rate of the PP-g-AA graft copolymer is 1.6-2.3%; the manufacturing process comprises the following steps:
A. weighing the following raw materials in parts by weight: polypropylene, maleic anhydride grafted ethylene-octene copolymer, PP-g-AA grafted copolymer, amino modified polysiloxane emulsion, polyvinylidene fluoride-hexafluoropropylene copolymer, polyacrylic acid fluorine-containing ester and filler;
B. feeding the raw materials into a double-screw extruder to be melted into a mixed melt;
C. the mixed melt enters a composite spinning machine, is sprayed out from a spinneret plate after being distributed, forms strand silk, and then is cooled by blowing, stretched and wound to obtain the polypropylene composite fiber; the fineness of the polypropylene composite fiber is 2-5 dtex;
D. and (3) carding the polypropylene composite fibers into a net, then carrying out spunlace reinforcement and drying to obtain the waterproof and oilproof elastic soft non-woven fabric.
2. The manufacturing process of the waterproof and oilproof elastic soft non-woven fabric according to claim 1, wherein the waterproof and oilproof non-woven fabric is prepared from the following raw materials in parts by weight: 70 parts of polypropylene, 19.3 parts of maleic anhydride grafted ethylene-octene copolymer, 10.5 parts of PP-g-AA grafted copolymer, 3.4 parts of amino modified polysiloxane emulsion, 6.7 parts of polyvinylidene fluoride-hexafluoropropylene copolymer, 5.2 parts of polyacrylic acid fluorine-containing ester and 12 parts of filler.
3. The process for manufacturing the water-proof oil-proof elastic soft non-woven fabric according to claim 1, wherein the filler is nano calcium carbonate.
4. The process for manufacturing the waterproof and oilproof elastic soft non-woven fabric according to claim 1, wherein in the step B, the heating section of the twin-screw extruder is 6 sections, and the heating temperature is 222-230 ℃, 236-242 ℃, 250-255 ℃, 260-265 ℃, 268-272 ℃ and 272-275 ℃ in sequence.
5. The manufacturing process of the waterproof and oilproof elastic soft non-woven fabric according to the claim 1, characterized in that in the step D, when the mixed fiber is carded into a net, the rotating speed of a main cylinder of a carding machine is 700-750 m/min, the rotating speed of a working roll is 50-60 m/min, and the rotating speed of a stripping roll is 65-75 m/min; the number of the spunlace heads used for spunlacing and reinforcing the mixed fiber web is 5-9; the pressure range of the plurality of the water stabs is 30-40 bar.
6. A water and oil repellent elastic soft nonwoven fabric produced by the process of any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110365041.0A CN113106631B (en) | 2019-10-25 | 2019-10-25 | Waterproof and oilproof elastic soft non-woven fabric and manufacturing process thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911020981.5A CN110725070B (en) | 2019-10-25 | 2019-10-25 | Waterproof and oilproof non-woven fabric and manufacturing process thereof |
| CN202110365041.0A CN113106631B (en) | 2019-10-25 | 2019-10-25 | Waterproof and oilproof elastic soft non-woven fabric and manufacturing process thereof |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911020981.5A Division CN110725070B (en) | 2019-10-25 | 2019-10-25 | Waterproof and oilproof non-woven fabric and manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN113106631A true CN113106631A (en) | 2021-07-13 |
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| CN114318663A (en) * | 2022-02-10 | 2022-04-12 | 晋江市诺特新材料科技有限公司 | Processing technology of nanofiber waterproof breathable cloth |
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| CN112127047A (en) * | 2020-08-15 | 2020-12-25 | 福建冠泓工业有限公司 | Degradable hot air non-woven fabric and preparation method thereof |
| CN112647195A (en) * | 2020-11-30 | 2021-04-13 | 东莞市威骏不织布有限公司 | Method for making agricultural cold-proof cloth |
| CN115418857B (en) * | 2022-08-25 | 2024-05-10 | 浙江恒泽环境科技有限公司 | Durable oil-proof finishing agent for non-woven fabric and preparation method |
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