CN110725132B - Preparation method of waste textile fiber non-woven coating material - Google Patents
Preparation method of waste textile fiber non-woven coating material Download PDFInfo
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- CN110725132B CN110725132B CN201911064104.8A CN201911064104A CN110725132B CN 110725132 B CN110725132 B CN 110725132B CN 201911064104 A CN201911064104 A CN 201911064104A CN 110725132 B CN110725132 B CN 110725132B
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- 239000002699 waste material Substances 0.000 title claims abstract description 125
- 239000004753 textile Substances 0.000 title claims abstract description 102
- 239000011248 coating agent Substances 0.000 title claims abstract description 77
- 238000000576 coating method Methods 0.000 title claims abstract description 77
- 239000000835 fiber Substances 0.000 title claims abstract description 69
- 239000000463 material Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 239000004745 nonwoven fabric Substances 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 26
- 238000012545 processing Methods 0.000 claims abstract description 21
- 239000004677 Nylon Substances 0.000 claims abstract description 17
- 229920001778 nylon Polymers 0.000 claims abstract description 17
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 30
- 238000009960 carding Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000007731 hot pressing Methods 0.000 claims description 11
- 238000003756 stirring Methods 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000000945 filler Substances 0.000 claims description 8
- 229920000728 polyester Polymers 0.000 claims description 7
- 238000004659 sterilization and disinfection Methods 0.000 claims description 7
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 6
- 238000009775 high-speed stirring Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000006255 coating slurry Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- 239000011256 inorganic filler Substances 0.000 claims description 4
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 4
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- 229920002292 Nylon 6 Polymers 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 230000015271 coagulation Effects 0.000 claims description 2
- 238000005345 coagulation Methods 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 239000000377 silicon dioxide Substances 0.000 claims description 2
- 235000012239 silicon dioxide Nutrition 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 235000017550 sodium carbonate Nutrition 0.000 claims description 2
- 239000010456 wollastonite Substances 0.000 claims description 2
- 229910052882 wollastonite Inorganic materials 0.000 claims description 2
- 239000004744 fabric Substances 0.000 abstract description 7
- 238000007639 printing Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 description 9
- 238000005520 cutting process Methods 0.000 description 7
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- 238000004064 recycling Methods 0.000 description 4
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- 238000010041 electrostatic spinning Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
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- 235000021190 leftovers Nutrition 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
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- 238000004140 cleaning Methods 0.000 description 1
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- 238000003672 processing method Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 210000002151 serous membrane Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010784 textile waste Substances 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 210000002268 wool Anatomy 0.000 description 1
Images
Classifications
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/59—Polyamides; Polyimides
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/07—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof
- D06M11/11—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with halogens; with halogen acids or salts thereof; with oxides or oxyacids of halogens or salts thereof with halogen acids or salts thereof
- D06M11/155—Halides of elements of Groups 2 or 12 of the Periodic Table
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/11—Oleophobic properties
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/10—Repellency against liquids
- D06M2200/12—Hydrophobic properties
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/30—Flame or heat resistance, fire retardancy properties
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
- D06M2200/35—Abrasion, pilling or fibrillation resistance
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a preparation method of a waste textile fiber non-woven coating material, which comprises the following steps: (1) preparing waste textile fiber non-woven fabric suitable for coating processing; (2) and (3) preparing a coating material. The waste textile can be prepared into the non-woven fabric suitable for coating processing by selecting a proper needling process and a proper post-treatment process, and the waste textile fiber non-woven coated fabric is prepared by utilizing the nylon waste silk coating pulp through wet coating on the basis. Not only can the waste textiles be recycled, but also the additional value of the waste textiles can be improved through further coating and printing processing.
Description
Technical Field
The invention belongs to the field of textile processing, and particularly relates to a non-woven coating material designed by recycling waste textile fibers and a processing method thereof.
Background
The textile industry is closely related to the life of people, along with the expansion of the application field of textiles, the rapid growth of the world population, the growing shortage of textile raw materials and the rising price of the textile raw materials are increased greatly, a large amount of waste textiles are buried and burned as garbage, and the burying and the burning can generate a large amount of harmful gases and difficultly-degraded substances, thereby not only causing the waste of resources, but also polluting the environment. In recent years, the recycling industry of textile waste in China is rapidly developed. At present, two modes of chemical treatment and physical treatment are mainly used for recycling waste textiles. For example, patent 201710700676.5 produces a waste fibrous nonwoven fabric by consolidating a structure with an upper new web layer, a middle waste web layer, and a lower new web layer by a stitch-bonding nonwoven process. Patent 201610276905.0 discloses sterilizing waste textile, degrading protein, regenerating, cleaning, winding, twisting, warping, sizing, drawing in warp and weaving. The patent 201611174221.6 discloses a wool nonwoven material made from various waste clothes by pre-treating the clothes by insolation, gas sterilization, ultrasonic cleaning and crushing into blocks, and then mixing and spinning. In the patent 201810068865, after the treatment of sorting, crushing, decoloring, washing, dissolving and the like, waste polyester textiles are directly dissolved to prepare an electrostatic spinning raw material, and then the regenerated spinning solution is subjected to electrostatic spinning to prepare regenerated polyester non-woven fabric. However, at present, no report is found on a non-woven fabric material which is designed by recycling waste textile fibers and is processed into a non-woven fabric material with gorgeous patterns, leather appearance and soft hand feeling through coating and ink-jet printing.
The coating finishing can change the surface structure of the non-woven base fabric, obtain unique appearance style, cover the original color of the waste textile fiber, improve printing performance, and enable the coated fabric to obtain the functions of water resistance, stain resistance, wear resistance, flame retardance and the like, thereby further expanding the application field of the waste textile fiber non-woven fabric, and improving the practicability and the service life.
Disclosure of Invention
The invention aims to provide a preparation method of a waste textile fiber non-woven coating material, which can prepare waste textiles into non-woven fabrics suitable for coating processing by selecting suitable processes such as needling and the like and post-treatment processes, and prepares the waste textile fiber non-woven coating fabrics by utilizing nylon waste silk coating pulp and wet coating. Not only can the waste textiles be recycled, but also the additional value of the waste textiles can be improved through further coating and printing processing.
In order to solve the technical problem, the following technical scheme is adopted:
a preparation method of a waste textile fiber non-woven coating material is characterized by comprising the following steps:
(1) preparing the waste textile fiber non-woven fabric suitable for coating processing:
the waste textile is sent into an opener for opening treatment to prepare waste textile fibers, 0-5% of low-melting-point polyester fibers are added, and the waste textile fiber non-woven fabric is prepared by processes of carding, fine carding, net stacking, needling, hot pressing and the like by means of needling equipment.
(2) Preparation of the coating material:
preparing nylon waste silk coating pulp, uniformly coating the nylon waste silk coating pulp on the prepared waste textile fiber non-woven fabric, solidifying the coated non-woven fabric in water bath at 15-25 ℃, and solidifying for 30-80 seconds at the temperature of 100-150 ℃ after full solidification to prepare the waste textile non-woven coating material.
Preferably, the waste textiles are disinfected by disinfection equipment before being used and then are sent into an opener after being disinfected.
Preferably, the waste textile fibers are short fibers.
Preferably, the obtained waste textile fiber non-woven fabric is subjected to pretreatment, wherein the pretreatment is hot pressing treatment, the temperature is 100-200 ℃, the pressure is 10-30Mpa, and the time is 60-240s, and the waste textile fiber non-woven fabric suitable for coating processing is obtained after the pretreatment.
Preferably, the preparation of the nylon waste silk coating pulp in the step (2) comprises the following specific steps: 1-50 parts of anhydrous calcium chloride and 20-100 parts of anhydrous methanol are fully stirred and mixed for reaction at the temperature of 65 ℃, 1-20 parts of nylon 6 waste silk is added for dissolution after the reaction is finished, 2-50 parts of filling agent is added under high-speed stirring after the waste silk is completely dissolved, and the mixture is uniformly stirred at high speed for later use.
Preferably, the purity of the methanol is 99.7% or more.
Preferably, the filler is an inorganic filler, and the inorganic filler is one or more of kaolin, silicon dioxide, sodium carbonate or wollastonite.
Preferably, the methanol content of the coagulation water bath does not exceed 15%.
Due to the adoption of the technical scheme, the method has the following beneficial effects:
the invention relates to a preparation method of a waste textile fiber non-woven coating material, which can prepare waste textiles into non-woven fabrics suitable for coating processing by selecting suitable processes such as needling and the like and post-treatment processes, and prepares the waste textile fiber non-woven coating fabrics by utilizing nylon waste silk coating pulp and wet coating. Not only can the waste textiles be recycled, but also the additional value of the waste textiles can be improved through further coating and printing processing. The concrete beneficial effects are as follows:
1. the used base materials and sizing agents are leftovers, leftover materials, waste silk and the like in the production process of textile related products and the preparation of waste textiles generated in daily life, so that the non-woven coating material prepared by using the waste textiles can meet the requirements of raw materials required by industrial production, reduce environmental pollution, save energy and realize the strategic goal of sustainable development;
2. the prepared non-woven fabric coating material can be further used for developing products such as bags, ground mats, coverings, decorative paintings and the like through later-stage printing processing.
3. The coating finishing can change the surface structure of the waste textile fiber non-woven fabric, obtain unique appearance style, cover the original color of the waste textile fiber, improve printing performance, and enable the coated fabric to obtain the functions of water resistance, stain resistance, wear resistance, flame retardance and the like, thereby further expanding the application field of the waste textile fiber non-woven fabric, and improving the practicability and the service life.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a flow chart of a method for preparing a waste textile fiber nonwoven coating material
Detailed Description
In the following experimental method examples, reagents, materials and equipment used in the following experimental method examples are commercially available or can be prepared by a conventional method unless otherwise specified, in order to make the technical scheme and features of the present invention more clearly understood and easily understood by those skilled in the art.
Example 1
1) Preparing the waste textile fiber non-woven fabric suitable for coating processing: the waste textile is disinfected through disinfection equipment, the disinfected waste textile is sent into an opener to be subjected to opening treatment to prepare waste textile fibers, waste textile fiber non-woven fabrics are prepared through steps of carding, fine carding, net folding, needling, hot pressing and the like by means of needling equipment, the obtained waste textile fiber non-woven fabrics are subjected to pre-hot pressing treatment, and the process is as follows: the temperature is 180 ℃, the pressure is 20Mpa, and the time is 90s, so that the waste textile fiber non-woven fabric suitable for coating processing is obtained.
2) Preparation of the coating material: fully stirring 35 parts of anhydrous calcium chloride and 100 parts of anhydrous methanol at the temperature of 65 ℃ for mixing reaction, adding 40 parts of nylon waste silk for dissolving after the reaction is finished, adding 30 parts of filler under high-speed stirring after the waste silk is completely dissolved, and uniformly stirring at high speed for later use. Uniformly coating the nylon waste silk coating slurry on the prepared non-woven fabric, solidifying the coated non-woven fabric in water bath at 25 ℃, fully solidifying, and solidifying for 80s at 140 ℃ to obtain the waste textile non-woven coating material.
Example 2
1) Preparing the waste textile fiber non-woven fabric suitable for coating processing: the waste textile is disinfected by disinfection equipment, the disinfected waste textile is sent into an opener for opening treatment to prepare waste textile fibers, 4% of low-melting-point polyester fibers are doped, waste textile fiber non-woven fabrics are prepared by the steps of carding, fine carding, net folding, needling, hot pressing and the like by means of needling equipment, and the obtained waste textile fiber non-woven fabrics are subjected to pre-hot pressing treatment, wherein the process is as follows: the temperature is 140 ℃, the pressure is 30Mpa, and the time is 240s, thus obtaining the waste textile fiber non-woven fabric suitable for coating processing.
2) Preparation of the coating material: fully stirring 15 parts of anhydrous calcium chloride and 60 parts of anhydrous methanol at the temperature of 65 ℃ for mixing reaction, adding 10 parts of nylon waste silk for dissolving after the reaction is finished, adding 20 parts of filler under high-speed stirring after the waste silk is completely dissolved, and uniformly stirring at high speed for later use. Uniformly coating the nylon waste silk coating slurry on the prepared non-woven fabric, solidifying the coated non-woven fabric in water bath at 25 ℃, fully solidifying, and curing for 60s at 150 ℃ to obtain the waste textile non-woven coating material.
Example 3
1) Preparing the waste textile fiber non-woven fabric suitable for coating processing: the waste textile is disinfected through disinfection equipment, the disinfected waste textile is sent into an opener to be subjected to opening treatment to prepare waste textile fibers, 3% of low-melting-point polyester fibers are doped, waste textile fiber non-woven fabrics are prepared through steps of carding, fine carding, net folding, needling, hot pressing and the like by means of needling equipment, and the obtained waste textile fiber non-woven fabrics are subjected to pre-hot pressing treatment, and the process is as follows: the temperature is 200 ℃, the pressure is 10Mpa, and the time is 60s, so that the waste textile fiber non-woven fabric suitable for coating processing is obtained.
2) Preparation of the coating material: fully stirring 25 parts of anhydrous calcium chloride and 100 parts of anhydrous methanol at the temperature of 65 ℃ for mixing reaction, adding 20 parts of nylon waste silk for dissolving after the reaction is finished, adding 40 parts of filler under high-speed stirring after the waste silk is completely dissolved, and uniformly stirring at high speed for later use. Uniformly coating the nylon waste silk coating slurry on the prepared non-woven fabric, solidifying the coated non-woven fabric in water bath at 20 ℃, and solidifying for 50s at 150 ℃ after full solidification to obtain the waste textile non-woven coating material.
Example 4
1) Preparing the waste textile fiber non-woven fabric suitable for coating processing: the waste textile is disinfected through disinfection equipment, the disinfected waste textile is sent into an opener to be subjected to opening treatment to prepare waste textile fibers, 4% of low-melting-point polyester fibers are doped, waste textile fiber non-woven fabrics are prepared through steps of carding, fine carding, net folding, needling, hot pressing and the like by means of needling equipment, and the obtained waste textile fiber non-woven fabrics are subjected to pre-hot pressing treatment, and the process is as follows: the temperature is 160 ℃, the pressure is 20Mpa, and the time is 120s, thus obtaining the waste textile fiber non-woven fabric suitable for coating processing.
2) Preparation of the coating material: fully stirring 15 parts of anhydrous calcium chloride and 60 parts of anhydrous methanol at the temperature of 65 ℃ for mixing reaction, adding 10 parts of nylon waste silk for dissolving after the reaction is finished, adding 10 parts of filler under high-speed stirring after the waste silk is completely dissolved, and uniformly stirring at high speed for later use. Uniformly coating the nylon waste silk coating slurry on the prepared non-woven fabric, solidifying the coated non-woven fabric in water bath at 15 ℃, fully solidifying, and curing for 60s at 140 ℃ to obtain the waste textile non-woven coating material.
Based on the above examples 1-4, the prepared waste textile fiber non-woven coating material was subjected to adhesion test, folding endurance test and tensile strength test
And (3) testing the adhesive force: the adhesion of the coating material paste film is determined by testing according to the standard ASTM D3359-2009 adhesion measured by tape method. The specific method comprises the following steps: cutting six lines on the surface of the serosa transversely and longitudinally by using a cutting blade and a steel ruler to obtain 100 small squares with the size of 1mm multiplied by 2mm, adhering the surface of the serosa by using a special adhesive tape, quickly tearing off the serosa, and calculating the percentage of the falling area of the squares in the total area to carry out grading evaluation. 0 grade, no peeling of the square grids; level 1, a small part of the grids is peeled off, but the actual damaged area in the grid cutting area is not more than 5 percent; 2, partial stripping of the grids, wherein the area of the actual damaged area in the grid cutting area is more than 5 percent but less than 15 percent; grade 3, partial peeling or whole peeling in the grid-cutting area, wherein the peeled area exceeds 15 percent but is less than 35 percent; 4, stripping large sheets in the grid-cutting area, wherein the area of the large sheets is more than 35 percent of the area of the grid-cutting area but not more than 65 percent; grade 5, the area of exfoliation exceeds the previous grade.
And (3) testing the folding strength: the prepared coating material is cut into a size of 10cm multiplied by 10cm, the coating material is repeatedly folded in half for 100 times, and then the folding mark and the fracture condition of the coating serous membrane are observed by a 3D video microscope under the condition of 50 times magnification.
And (3) tensile strength test: the test was carried out according to the standard GB/T3923.1-1997 textile fabric tensile Properties.
The test results of the above described waste textile fiber nonwoven coating material are shown in table 1:
TABLE 1 Performance test results for waste textile fiber nonwoven coating materials
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications based on the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.
Claims (6)
1. A preparation method of a waste textile fiber non-woven coating material is characterized by comprising the following steps:
(1) preparing the waste textile fiber non-woven fabric suitable for coating processing:
sending the waste textile into an opener for opening treatment to prepare waste textile fibers, doping 3-5% of low-melting-point polyester fibers, and preparing waste textile fiber non-woven fabric by carding, fine carding, net stacking and needling with the help of needling equipment; pretreating the obtained waste textile fiber non-woven fabric, wherein the pretreatment is hot-pressing treatment, the temperature is 100-200 ℃, the pressure is 10-30Mpa, and the time is 60-240s, and the waste textile fiber non-woven fabric suitable for coating processing is obtained after pretreatment;
(2) preparation of the coating material:
preparing nylon waste silk coating pulp, uniformly coating the nylon waste silk coating pulp on the prepared waste textile fiber non-woven fabric, solidifying the coated non-woven fabric in water bath at 15-25 ℃, and solidifying for 30-80s at the temperature of 100-150 ℃ after full solidification to prepare the waste textile fiber non-woven coating material;
the preparation of the nylon waste silk coating slurry in the step (2) comprises the following specific steps: fully stirring and mixing 1-50 parts of anhydrous calcium chloride and 20-100 parts of anhydrous methanol at the temperature of 65 ℃ for reaction, adding 1-20 parts of nylon 6 waste silk for dissolution after the reaction is finished, adding 2-50 parts of a filling agent under high-speed stirring after the waste silk is completely dissolved, and uniformly stirring at high speed for later use.
2. The method for preparing the waste textile fiber non-woven coating material according to claim 1, wherein the method comprises the following steps: before the waste textiles are used, the waste textiles are disinfected by disinfection equipment and then are sent into an opener after being disinfected.
3. The method for preparing the waste textile fiber non-woven coating material according to claim 1, wherein the method comprises the following steps: the waste textile fibers are short fibers.
4. The method for preparing the waste textile fiber non-woven coating material according to claim 1, wherein the method comprises the following steps: the purity of the methanol is more than 99.7 percent.
5. The method for preparing the waste textile fiber non-woven coating material according to claim 1, wherein the method comprises the following steps: the filler is an inorganic filler, and the inorganic filler is one or more of kaolin, silicon dioxide, sodium carbonate or wollastonite.
6. The method for preparing the waste textile fiber non-woven coating material according to claim 1, wherein the method comprises the following steps: the methanol content in the water bath for coagulation is not more than 15%.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1352329A (en) * | 2000-11-14 | 2002-06-05 | 上海大地仿丝棉有限公司 | Method for producing warm keeping cotton and warm keeping cotton produced thereafter |
| KR20120111224A (en) * | 2011-03-31 | 2012-10-10 | 임창민 | Manufacturing method of recycled nonwoven |
| CN104131464A (en) * | 2014-07-25 | 2014-11-05 | 常熟璟杰进出口有限公司 | Coated non-woven fabric |
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