CN108866825A - A kind of manufacturing method of the long fine non-woven fabrics of superfine fibre - Google Patents
A kind of manufacturing method of the long fine non-woven fabrics of superfine fibre Download PDFInfo
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- CN108866825A CN108866825A CN201810889534.2A CN201810889534A CN108866825A CN 108866825 A CN108866825 A CN 108866825A CN 201810889534 A CN201810889534 A CN 201810889534A CN 108866825 A CN108866825 A CN 108866825A
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- woven fabrics
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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
- D04H3/009—Condensation or reaction polymers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D13/00—Complete machines for producing artificial threads
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
-
- 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
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
- D06B15/00—Removing liquids, gases or vapours from textile materials in association with treatment of the materials by liquids, gases or vapours
-
- 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
- D06M11/32—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
- D06M11/36—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 oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
- D06M11/38—Oxides or hydroxides of elements of Groups 1 or 11 of the Periodic System
-
- 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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/32—Polyesters
-
- 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
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/16—Synthetic fibres, other than mineral fibres
- D06M2101/30—Synthetic polymers consisting of macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M2101/34—Polyamides
-
- 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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
-
- 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
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/04—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyesters, e.g. polyethylene terephthalate [PET]
-
- 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
- D10B2509/00—Medical; Hygiene
- D10B2509/02—Bandages, dressings or absorbent pads
Abstract
A kind of manufacturing method of the long fine non-woven fabrics of superfine fibre, dissolves all or part of PET, achievees the effect that complete fibrillation with this using the hollow tangerine valve type spun-bonded spunlace cloth of PET-PA6 two-component through the post-processing of alkali (NaOH) decrement.The long filament lapping technique that the present invention uses may make that fibre-bearing does not break end in product, reduces the hook to skin, improve sense of touch, reduce sensitive；The fibre fineness that face mask substrate material greatly improved is improved the pliability of face mask substrate material and patch skin degree.
Description
Technical field
The present invention relates to long fine non-woven fabrics fields, and in particular to a kind of manufacturing method of the long fine non-woven fabrics of superfine fibre.
Background technique
Superfine fibre, generally referred to as fibre fineness are lower than the fiber of 0.3D, this fineness is difficult directly to spin by chemistry
Silk or solution-polymerized SBR accomplish that common superfine fibre is that a short fibre of root thickness fiber is made up of two-component spinning technique, then spread
Net is reinforced at dispersing to form more superfine fibres by aftertreatment technology again after cloth, mainly have tangerine valve type (as shown in Fig. 2) and
Two kinds of forms of fabric of island-in-sea type (as shown in Fig. 3).
Traditional non-woven cloth face mask substrate material generally uses viscose glue, terylene or lyocell staple fiber, by combing water jet process system
At.Because its is low in cost, yield is high, good water absorption and be widely used in facial mask field, but the adaptable fibre fineness of carding process
Limited, single superfine fibre is not suitable for combing production line, therefore there is no the one seats of superfine fibre in traditional facial mask substrate.
Summary of the invention
The manufacture difficult point of superfine fibre is referred to for background technique, the present invention is by providing a kind of long fine nonwoven of superfine fibre
The solution of the manufacture of cloth.
A kind of manufacturing method of the long fine non-woven fabrics of superfine fibre, includes the following steps：
Step 1, dry PET raw material and PA6 raw material, so that PET moisture content of the raw material is down to 30ppm hereinafter, PA6 raw aqueous
Rate is down to 100ppm or less；
Step 2, the raw material after drying enters screw rod, and segmentation heating heating step by step melts raw material, and air is discharged, mistake
Stable entrance melt pipe after filter foreign matter；
Step 3, two kinds of raw materials flow in complicated channel in component, finally collect by entering component after metering pump
One the more than melt stream to form a circle at two kinds of raw material intervals, and squeezed out from a spinneret orifice；
Step 4, the compound melt stream squeezed out from spinneret, temperature gradually cooled and solidified under the action of cross air blasting；
Step 5, the drafting tube that cooled tow is filled by compressed air, drawing-off, which is elongated, under the drive of high speed winds becomes
Carefully, until reaching the fineness of spinning requirement；
Step 6, tow is broken up by mechanical device in drafting tube exit and is equably layered on lace curtaining, is formed fluffy
Uniform fibre web；
Step 7, the superfine water flow (high pressure water needle) projected out of water jet high-pressure chamber acts directly on web surface,
The fiber of web surface is pierced into inside, instead pierces by the fiber of reverse side again after rebounding on support lace curtaining, so that between fiber
It forms obvolvent to tangle, fluffy fibre web is become to the cloth for having strength；
Step 8, PET and the PA6 base fabric being combined are immersed in NaOH solution, PET is partly dissolved or whole is molten
Solution；
Step 9, lye is diluted and cleaned, the pH value of cloth is adjusted, is allowed to be in neutrality slant acidity；
Step 10, using the drying equipment arranged with needle, by product drying and shaping under conditions of fixed selvedge control door width.
Further, the drying operation of the step 1 is dried using the hot-air after dehumidification treatments.
Further, the valve number of step 3 melt stream is between 8~32, and preferably 16.
Further, the step 9 carries out the adjusting of pH value using a small amount of glacial acetic acid.
Further, the step 9 is diluted lye using industry water.
Beneficial effect：Compared with prior art, the long filament lapping technique that the present invention uses may make in product not fibre-bearing
Broken end reduces the hook to skin, improves sense of touch, reduces sensitive；The fibre fineness that face mask substrate material greatly improved makes facial mask base
The pliability and patch skin degree of material are improved.
Detailed description of the invention
Fig. 1：Process flow chart of the invention；
Fig. 2：The hollow tangerine valve type superfine fibre schematic diagram of two-component；
Fig. 3：Two-component sea-island composite fiber schematic diagram；
Fig. 4：The macrograph of common short fine spun laced fabric；
Fig. 5：The microgram of common short fine spun laced fabric；
Fig. 6：The macrograph of the ultrashort long filament spun laced fabric manufactured according to the present invention；
Fig. 7：The microgram of the ultrashort long filament spun laced fabric manufactured according to the present invention；
Fig. 8：The structural schematic diagram of the component of step 3 of the present invention.
In figure：1- spinneret；2- sand chamber and filter screen；3- melt inlet.
Specific embodiment
One embodiment of the present of invention is done now in conjunction with attached drawing and is further illustrated.
The present invention is reduced and post-processes through alkali (NaOH) using the hollow tangerine valve type spun-bonded spunlace cloth of PET-PA6 two-component, molten
All or part of PET is taken off, reaches what complete fibrillation effect obtained.
The hollow tangerine valve type spunbonded water-jet bonding non-woven fabrics technique of two-component, which refers to, to be melted after two kinds of materials dryings of PET, PA6, leads to
It crosses special filament spinning component and two kinds of components is squeezed out into spinneret orifice centainly to arrange and match, cut to form the specialty fibers of Fig. 4 such as
Face, and first break draft lapping, then the technique that simultaneously preliminary fibrillation forms non-woven fabrics is reinforced by high pressure water needle.The hollow tangerine valve type of two-component
Spunbonded water-jet bonding non-woven fabrics technique is generally used for leather base fabric manufacture, it is intended under the premise of not doing alkali decrement treatment, be opened by spun lacing
Fibre obtains superfine fibre nonwoven cloth, to substitute the base fabric after the chopped fiber needle-punched non-woven fabrics decrement of conventional sea-island type.
The hollow tangerine valve type spun-bonded spunlace base fabric of two-component is due to leading to two-component containing the terylene PET not absorbed water, rigidity is high
Hollow tangerine valve type spun-bonded spunlace base fabric bony is strong, stiffening, and its water imbibition is poor, fibrillation rate is not high, so that pliability is not high enough.
But the hollow tangerine valve type spun-bonded spunlace base fabric of two-component pass through caustic reduction processing, by the PET component in component do completely decrement or
Not exclusively after decrement, the complete fibrillation of fiber may make, so that fibre fineness reduces, pliability is improved.PET content is reduced, feel
The soft of change is dangled, and improves the water absorption rate of material jointly by change composition proportion and in terms of changing fibre structure two；With
This simultaneously, because of the large specific surface area of superfine fibre, the surface tension effects after water suction by water may make material firmly to paste
Clothes form a kind of patch skin sense that traditional facial mask paper is incomparable in human skin surface.
Fabric of island-in-sea type is ultra-fine or hollow tangerine valve type superfine fibre by post-processing again after short fine cloth is made, and generally requires original cloth
Grammes per square metre avoids damaging in aftertreatment technology, the cloth grammes per square metre handled out in this way is excessively high, no in 200gsm or more to guarantee strength
It is suitble to the requirement of common 30-50g of facial mask cloth or so, and the fiber in tangerine valve type spinning building is long filament, overcomes this well
The base fabric of one problem, 80-100gsm can meet the strength demand of aftertreatment technology, and the facial mask base of minimum 30gsm can be made
Material.
A kind of manufacturing method of the long fine non-woven fabrics of superfine fibre, includes the following steps：
Step 1, dry PET raw material and PA6 raw material, are dried by the hot-air Jing Guo dehumidification operation, so that PET raw material contains
Water rate is down to 30ppm hereinafter, PA6 moisture content of the raw material is down to 100ppm or less；
Step 2, the raw material after drying enters screw rod, and segmentation heating heating step by step melts raw material, and air is discharged, mistake
Stable entrance melt pipe after filter foreign matter；
Step 3, two kinds of raw materials flow in complicated channel in component, finally collect by entering component after metering pump
One the more than melt stream to form a circle at two kinds of raw material intervals, and squeezed out from a spinneret orifice；
Step 4, the compound melt stream squeezed out from spinneret, temperature gradually cooled and solidified under the action of cross air blasting；
Step 5, the drafting tube that cooled tow is filled by compressed air, drawing-off, which is elongated, under the drive of high speed winds becomes
Carefully, until reaching the fineness of spinning requirement；
Step 6, tow is broken up by mechanical device in drafting tube exit and is equably layered on lace curtaining, is formed fluffy
Uniform fibre web；
Step 7, the superfine water flow (high pressure water needle) projected out of water jet high-pressure chamber acts directly on web surface,
The fiber of web surface is pierced into inside, instead pierces by the fiber of reverse side again after rebounding on support lace curtaining, so that between fiber
It forms obvolvent to tangle, fluffy fibre web is become to the cloth for having strength；
Step 8, PET and the PA6 base fabric being combined are immersed in NaOH solution, give regular hour and temperature,
PET is partly dissolved or is all dissolved；
Step 9, lye is diluted and cleaned, the pH value of cloth is adjusted using a small amount of glacial acetic acid, is allowed to be in neutrality slant acidity；
Step 10, using the drying equipment arranged with needle, by product drying and shaping under conditions of fixed selvedge control door width.
Its structural schematic diagram of component described in step 3 of the present invention is as shown in Fig. 8, including spinneret 1, husky chamber and filter screen
2 and melt inlet 3, two kinds of raw materials form pressure by entering component from melt inlet 3 after metering pump, by husky chamber and filter screen 2
The melt of power stabilization and free from admixture, then pass through the flowing in channel complicated inside spinneret, the spray finally gathered from spinneret 1
Wire hole sprays.
The present invention may make that fibre-bearing does not break end in product, reduces the hook to skin, improves using long filament lapping technique
Sense of touch reduces sensitive.
Fibre fineness (tradition short the fibre 1.4-1.67dtex, 0.2dtex of the present invention of face mask substrate material greatly improved in the present invention
Left and right), so that the pliability of face mask substrate material is pasted skin degree and haves a qualitative leap.
The attached macrograph shown in Fig. 3 for common short fine spun laced fabric, attached drawing 5 are the microgram of common short fine spun laced fabric.
Attached shown in fig. 5 for the macrograph of the ultrashort long filament spun laced fabric manufactured according to the present invention, attached drawing 7 is according to the present invention
The microgram of the ultrashort long filament spun laced fabric of manufacture.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of manufacturing method of the long fine non-woven fabrics of superfine fibre, it is characterised in that include the following steps：
Step 1, dry PET raw material and PA6 raw material, so that PET moisture content of the raw material is down to 30ppm hereinafter, PA6 moisture content of the raw material drops
To 100ppm or less；
Step 2, the raw material after drying enters screw rod, and segmentation heating heating step by step melts raw material, and air is discharged, filters different
Stable entrance melt pipe after object；
Step 3, two kinds of raw materials flow in the channel in component by entering component after metering pump, finally accumulate two kinds of originals
One more than melt stream that material interval forms a circle, and squeezed out from a spinneret orifice；
Step 4, the compound melt stream squeezed out from spinneret, temperature gradually cooled and solidified under the action of cross air blasting；
Step 5, the drafting tube that cooled tow is filled by compressed air, drawing-off elongation attenuates under the drive of high speed winds,
Until reaching the fineness of spinning requirement；
Step 6, tow is broken up by mechanical device in drafting tube exit and is equably layered on lace curtaining, is formed fluffy uniform
Fibre web；
Step 7, the superfine water flow (high pressure water needle) projected out of water jet high-pressure chamber acts directly on web surface, will be fine
The fiber of net surface is pierced into inside, instead pierces by the fiber of reverse side again after rebounding on support lace curtaining, so that being formed between fiber
Obvolvent is tangled, and fluffy fibre web is become to the cloth for having strength；
Step 8, PET and the PA6 base fabric being combined are immersed in NaOH solution, PET is partly dissolved or is all dissolved；
Step 9, lye is diluted and cleaned, the pH value of cloth is adjusted, is allowed to be in neutrality slant acidity；
Step 10, using the drying equipment arranged with needle, by product drying and shaping under conditions of fixed selvedge control door width.
2. according to the method described in claim 1, it is characterized in that：The drying operation of the step 1 uses after dehumidification treatments
Hot-air dried.
3. according to the method described in claim 1, it is characterized in that：The valve number of step 3 melt stream is between 8~32.
4. according to the method described in claim 3, it is characterized in that：The valve number of step 3 melt stream is 16.
5. according to the method described in claim 1, it is characterized in that：The step 9 carries out pH value using a small amount of glacial acetic acid
It adjusts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810889534.2A CN108866825A (en) | 2018-08-07 | 2018-08-07 | A kind of manufacturing method of the long fine non-woven fabrics of superfine fibre |
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| CN201810889534.2A CN108866825A (en) | 2018-08-07 | 2018-08-07 | A kind of manufacturing method of the long fine non-woven fabrics of superfine fibre |
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| CN108866825A true CN108866825A (en) | 2018-11-23 |
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| CN201810889534.2A Pending CN108866825A (en) | 2018-08-07 | 2018-08-07 | A kind of manufacturing method of the long fine non-woven fabrics of superfine fibre |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359179A (en) * | 2019-07-15 | 2019-10-22 | 中原工学院 | A method of preparing super silk facial mask |
| CN111424377A (en) * | 2020-03-30 | 2020-07-17 | 吉安市三江超纤无纺有限公司 | Microfiber antibacterial non-woven fabric for protective clothing and manufacturing method and application thereof |
| CN111424376A (en) * | 2020-03-30 | 2020-07-17 | 吉安市三江超纤无纺有限公司 | Microfiber antibacterial non-woven fabric for mask and manufacturing method and application thereof |
| CN112941769A (en) * | 2021-01-27 | 2021-06-11 | 桐乡市华灵丝绸有限责任公司 | Melt-blown fabric imitation production device and production method |
| CN113322666A (en) * | 2021-06-02 | 2021-08-31 | 天津齐邦新材料有限公司 | Manufacturing method of filament superfine fiber mask cloth with 3D patterns |
| CN113355777A (en) * | 2021-05-26 | 2021-09-07 | 苏州普路通纺织科技有限公司 | Antistatic vortex spinning production process |
| CN114622344A (en) * | 2021-11-04 | 2022-06-14 | 浙江安顺化纤有限公司 | Dry preparation method of non-woven fabric and application of non-woven fabric in facial mask |
| CN115275513A (en) * | 2022-07-05 | 2022-11-01 | 天津工业大学 | Polyamide 6 non-woven fabric battery diaphragm for zinc ion battery and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110359179A (en) * | 2019-07-15 | 2019-10-22 | 中原工学院 | A method of preparing super silk facial mask |
| CN111424377A (en) * | 2020-03-30 | 2020-07-17 | 吉安市三江超纤无纺有限公司 | Microfiber antibacterial non-woven fabric for protective clothing and manufacturing method and application thereof |
| CN111424376A (en) * | 2020-03-30 | 2020-07-17 | 吉安市三江超纤无纺有限公司 | Microfiber antibacterial non-woven fabric for mask and manufacturing method and application thereof |
| CN112941769A (en) * | 2021-01-27 | 2021-06-11 | 桐乡市华灵丝绸有限责任公司 | Melt-blown fabric imitation production device and production method |
| CN113355777A (en) * | 2021-05-26 | 2021-09-07 | 苏州普路通纺织科技有限公司 | Antistatic vortex spinning production process |
| CN113322666A (en) * | 2021-06-02 | 2021-08-31 | 天津齐邦新材料有限公司 | Manufacturing method of filament superfine fiber mask cloth with 3D patterns |
| CN114622344A (en) * | 2021-11-04 | 2022-06-14 | 浙江安顺化纤有限公司 | Dry preparation method of non-woven fabric and application of non-woven fabric in facial mask |
| CN115275513A (en) * | 2022-07-05 | 2022-11-01 | 天津工业大学 | Polyamide 6 non-woven fabric battery diaphragm for zinc ion battery and preparation method thereof |
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