CN108589053A - A kind of hollow spunbonded non-woven manufacturing method of bi-component - Google Patents
A kind of hollow spunbonded non-woven manufacturing method of bi-component Download PDFInfo
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- CN108589053A CN108589053A CN201810205521.9A CN201810205521A CN108589053A CN 108589053 A CN108589053 A CN 108589053A CN 201810205521 A CN201810205521 A CN 201810205521A CN 108589053 A CN108589053 A CN 108589053A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000009987 spinning Methods 0.000 claims abstract description 18
- 150000001875 compounds Chemical class 0.000 claims abstract description 12
- 239000004744 fabric Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000000155 melt Substances 0.000 claims abstract description 6
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims abstract description 6
- 238000007596 consolidation process Methods 0.000 claims abstract description 5
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 5
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000005259 measurement Methods 0.000 claims abstract description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims description 6
- 238000005422 blasting Methods 0.000 claims description 5
- 230000021615 conjugation Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 208000011580 syndromic disease Diseases 0.000 claims description 5
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
- 229920001577 copolymer Polymers 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 15
- 235000012489 doughnuts Nutrition 0.000 abstract description 3
- 238000005098 hot rolling Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002280 amphoteric surfactant Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000003945 anionic surfactant Substances 0.000 description 1
- 239000013040 bath agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 239000003093 cationic surfactant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000002649 leather substitute Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
-
- 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
- D01D5/24—Formation of filaments, threads, or the like with a hollow structure; Spinnerette packs therefor
-
- 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
- D04H3/018—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the shape
-
- 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
- D04H3/105—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 needling
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C3/00—Stretching, tentering or spreading textile fabrics; Producing elasticity in textile fabrics
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Artificial Filaments (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a kind of hollow spun-bonded non-woven manufacturing methods of two-component, it is characterised in that includes the following steps：A, the thermoplastic copolymer slice of two kinds of unlike materials is dried respectively in proportion, squeezed, melted, filtered；B, two kinds of melts obtained by a steps into main box be conjugated after metering pump accurate measurement it is compound, it is compound after melt hollow spun filament is made in spinning in the air stream；C, spun filament is subjected to air drawing spinning；D, spinning obtained by step c is subjected to sub-wire lapping；E, web obtained by sub-wire lapping is subjected to of short duration needle and pierces consolidation；F, rolling and molding is at cloth；G, vertically and horizontally hot gas spring is carried out in a water bath.This method forms the hollowness of fibre higher of the doughnut of spun-bonded non-woven.
Description
Technical field
The present invention relates to a kind of hollow spunbonded non-woven manufacturing methods of bi-component.
Background technology
The principle of spun-bond process is the method using synthetic fiber spinning, by high polymer spinning, drawing-off, laying networking, most afterwards through needle
The methods of thorn, hot rolling or itself bonding, which are reinforced, forms non-woven material.The technique of spun-bond process is substantially：Polymer chips → slice
Drying → melt extruded → spinning → cooling → → drawing-off → sub-wire → lapping → reinforcing → trimming → winding spunbond process one
As use single-screw extrusion machine, be mainly made of screw rod, sleeve, transmission system, feeding device, heater and cooler device etc..
The non-woven cloth gas permeability of bi-component doughnut composition, flexibility, excelling in weight lightness, therefore acquisition makes extensively
With.
Invention content
The technical problem to be solved by the present invention is to：A kind of pair obtaining the superior spun-bonded non-woven of light weight is provided
The hollow spunbonded non-woven manufacturing method of component, makes the hollowness of fibre higher for the doughnut to form spun-bonded non-woven.
In order to solve the above technical problems, the technical solution adopted in the present invention is：A kind of hollow spunbonded nonwoven of two-component
Cloth manufacturing method, it is characterised in that include the following steps：
A, the thermoplastic copolymer slice of two kinds of unlike materials is dried respectively in proportion, squeezed, melted, filtered；
B, two kinds of melts obtained by a steps into main box be conjugated after metering pump accurate measurement it is compound, it is compound
Hollow spun filament is made in spinning to melt afterwards in the air stream；
C, spun filament is subjected to air drawing spinning；
D, spinning obtained by step c is subjected to sub-wire lapping；
E, web obtained by sub-wire lapping is subjected to of short duration needle and pierces consolidation；
F, rolling and molding is at cloth；
G, vertically and horizontally hot gas spring is carried out in a water bath.
As a preferred solution, the conjugation combined temp described in the step b is 265 DEG C~295 DEG C, and spinning is hollow
For air-cooled cross air blasting wind-warm syndrome it is 10 DEG C~20 DEG C when spun filament, wind speed is 0.3m/s~0.8m/s, and ambient humidity range is
30%~95%.
As a preferred solution, the air drawing wind pressure described in step c is 0.1Mpa~0.3Mpa, and wind speed is
4000m/s~5000m/s.
As a preferred solution, the frequency of the pendulum wire device pendulum of the sub-wire process described in step d be 300 times/min~
1400 times/min, the speed of lapping lace curtaining is 21m/min~100m/min.
As a preferred solution, the bath temperature described in step g is 50-70 DEG C, and hydrophilic reagent is added in a water bath.
Anionic, cationic, nonionic or amphoteric surfactant can be used in hydrophilic reagent.
As a preferred solution, the described thermoplastic copolymer slice be PP slices or PET slices or PE slices or
Two kinds in PLA slices, one of which accounting by weight percentage is 20%~80%, and another accounting is 80%~20%.
As a preferred solution, negative pressure is close to 0 when spun filament being carried out air drawing spinning in the step c.
The beneficial effects of the invention are as follows：Since in step g, bath temperature is 50-70 DEG C, and hydrophilic examination is added in a water bath
Agent makes cloth soak completely, and water enters the hollow the inside of fiber, and keeps in the fibre to provide support so that the finished product after drawing-off
Larger degree of hollowness is kept, in the case of unit area same thickness, the hollow spunbonded nonwoven of bi-component of present invention gained
Object is lighter than common hollow spunbonded non-woven, a can be widely used in the necks such as high density felt for artificial leather and automotive trim
Domain.
Specific implementation mode
Specific embodiments of the present invention are described below in detail.
Embodiment 1：A kind of method of the hollow spunbonded non-woven of bi-component, includes the following steps：
PET and PP slices are sent to respective drier, are sent after dry to two spiral shell cup extruders and are melted respectively, gained melt
Preparation is filtered metering, the auxiliary box body that PP is introduced into, then is imported into main box by auxiliary box body melt pipe, PET
It is then directly entered main box or another auxiliary box body is introduced into according to production requirement, enter back into main box melt；Melt is through spinning
It after component is compound, is sprayed from spinneret orifice, the melt stream of ejection is quickly cooled to spun filament through Crosswind type air cooler, and conjugation is compound
It is 280 DEG C to melt temperature, is 15 DEG C, wind speed 0.45m/s for air-cooled cross air blasting wind-warm syndrome, ambient humidity range 50%, just
Raw silk becomes filament fiber after pipe type air flow drawing device stretches, and air drawing wind pressure is 0.2Mpa, wind speed 4000m/s；
Fiber under the high speed swinging of pendulum wire device and pendulum wire device by fabric thrashing after be uniformly layered on lapper, the frequency of pendulum wire device goods of furniture for display rather than for use
Rate is 800 times/min, and the speed of lapping lace curtaining is 67m/min；Lapper lace curtaining send web to needing machine, pierces and consolidates through needle
After send to hot-rolling mill rolling and molding.Hydrophilic reagent is added in the water-bath that temperature is 60 DEG C, so that cloth is soaked completely, water enters fiber
Hollow the inside, and keep providing support in the fibre, to keep larger degree of hollowness.
The wherein described PP and PET slices, by weight percentage PP are 80%, PET 20%.PET is sliced melt temperature
255 DEG C, the melting temperature of PP is 170 DEG C.
Embodiment 2：A kind of method of the hollow spunbonded non-woven of bi-component, includes the following steps：
PET and PE slices are sent to respective drier, are sent after dry to two spiral shell cup extruders and are melted respectively, gained melt
Preparation is filtered metering, the auxiliary box body that PP is introduced into, then is imported into main box by auxiliary box body melt pipe, PET
It is then directly entered main box or another auxiliary box body is introduced into according to production requirement, enter back into main box melt；Melt is through spinning
It after component is compound, is sprayed from spinneret orifice, the melt stream of ejection is quickly cooled to spun filament through Crosswind type air cooler, and conjugation is compound
It is 290 DEG C to melt temperature, is 18 DEG C, wind speed 0.6m/s for air-cooled cross air blasting wind-warm syndrome, and ambient humidity range 80% is come into being
Silk becomes filament fiber after pipe type air flow drawing device stretches, and air drawing wind pressure is 0.3Mpa, wind speed 4550m/s；It is fine
Dimension under the high speed swinging of pendulum wire device and pendulum wire device by fabric thrashing after be uniformly layered on lapper, the frequency of pendulum wire device goods of furniture for display rather than for use
Speed for 800 times/min, lapping lace curtaining is 66m/min；Lapper lace curtaining send web to needing machine, after needle thorn consolidation
It send to hot-rolling mill rolling and molding.Hydrophilic reagent is added in the water-bath that temperature is 60 DEG C, so that cloth is soaked completely, water enters in fiber
Empty the inside, and keep providing support in the fibre, to keep larger degree of hollowness.
The wherein described PE and PET slices, by weight percentage PE are 80%, PET 20%.
Embodiment 3：A kind of method of the hollow spunbonded non-woven of bi-component, includes the following steps：
PET and PLA slices are sent to respective drier, are sent after dry to two spiral shell cup extruders and are melted, gained melt system
It is standby to be filtered metering, the auxiliary box body that PP is introduced into, then imported into main box by auxiliary box body melt pipe, PET is then
It is directly entered main box or another auxiliary box body is introduced into according to production requirement, enter back into main box melt；Melt is through spinning group
It after part is compound, is sprayed from spinneret orifice, the melt stream of ejection is quickly cooled to spun filament through Crosswind type air cooler, and conjugation is compound to melt
Temperature is 290 DEG C, is 18 DEG C, wind speed 0.6m/s for air-cooled cross air blasting wind-warm syndrome, ambient humidity range 80%, spun filament
Become filament fiber after pipe type air flow drawing device stretches, air drawing wind pressure is 0.3Mpa, wind speed 4550m/s；Fiber
Under the high speed swinging of pendulum wire device and pendulum wire device by fabric thrashing after be uniformly layered on lapper, the frequency of pendulum wire device goods of furniture for display rather than for use is
800 times/min, the speed of lapping lace curtaining is 66m/min；Lapper lace curtaining send web to needing machine, is sent after needle thorn consolidation
To hot-rolling mill rolling and molding.Hydrophilic reagent is added in the water-bath that temperature is 60 DEG C, so that cloth is soaked completely, it is hollow that water enters fiber
The inside, and keep providing support in the fibre, to keep larger degree of hollowness.
The principles and effects of the invention are only illustrated in the above embodiments, and the implementation that part uses
Example, and is not intended to limit the present invention；It should be pointed out that for those of ordinary skill in the art, not departing from wound of the present invention
Under the premise of making design, various modifications and improvements can be made, these are all within the scope of protection of the present invention.
Claims (6)
1. a kind of hollow spun-bonded non-woven manufacturing method of two-component, it is characterised in that include the following steps:
A, the thermoplastic copolymer slice of two kinds of unlike materials is dried respectively in proportion, squeezed, melted, filtered；
B, two kinds of melts obtained by a steps into main box be conjugated after metering pump accurate measurement it is compound, after compound
Hollow spun filament is made in spinning to melt in the air stream；
C, spun filament is subjected to air drawing spinning；
D, spinning obtained by step c is subjected to sub-wire lapping；
E, web obtained by sub-wire lapping is subjected to of short duration needle and pierces consolidation；
F, rolling and molding is at cloth；
G, vertically and horizontally hot gas spring is carried out in a water bath.
2. the hollow spun-bonded non-woven manufacturing method of a kind of two-component according to claim 1, it is characterised in that：Step b
The conjugation combined temp is 265 DEG C~295 DEG C, when spinning hollow spun filament for air-cooled cross air blasting wind-warm syndrome be 10 DEG C~
20 DEG C, wind speed is 0.3m/s~0.8m/s, and ambient humidity range is 30%~95%.
3. the hollow spun-bonded non-woven manufacturing method of a kind of two-component according to claim 1, it is characterised in that：Step c
The air drawing wind pressure is 0.1Mpa~0.3Mpa, and wind speed is 4000m/s~5000m/s.
4. the hollow spun-bonded non-woven manufacturing method of a kind of two-component according to claim 1, it is characterised in that：Step d
The frequency of the pendulum wire device pendulum of the sub-wire process is 300 times/min~1400 time/min, and the speed of lapping lace curtaining is 21m/
Min~100m/min.
5. the hollow spun-bonded non-woven manufacturing method of a kind of two-component according to claim 1, it is characterised in that：Step g
The bath temperature is 50-70 DEG C, and hydrophilic reagent is added in a water bath.
6. the hollow spun-bonded non-woven manufacturing method of two-component according to claim 1, it is characterised in that：The thermoplastic
Property copolymer slice be PP be sliced or PET slice PE slice or PLA slice in two kinds, one of which accounts for by weight percentage
Than being 20%~80%, another accounting is 80%~20%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810205521.9A CN108589053A (en) | 2018-03-13 | 2018-03-13 | A kind of hollow spunbonded non-woven manufacturing method of bi-component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810205521.9A CN108589053A (en) | 2018-03-13 | 2018-03-13 | A kind of hollow spunbonded non-woven manufacturing method of bi-component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108589053A true CN108589053A (en) | 2018-09-28 |
Family
ID=63626177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810205521.9A Pending CN108589053A (en) | 2018-03-13 | 2018-03-13 | A kind of hollow spunbonded non-woven manufacturing method of bi-component |
Country Status (1)
| Country | Link |
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| CN (1) | CN108589053A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113373597A (en) * | 2021-06-02 | 2021-09-10 | 四川亿耐特新材料有限公司 | Method for manufacturing non-woven felt by pure PET composite long fiber |
| CN113403753A (en) * | 2021-05-21 | 2021-09-17 | 南通大学 | Processing method of two-component spinning/devillicate lapping two-step method non-woven material |
| CN116575182A (en) * | 2023-07-14 | 2023-08-11 | 江苏富之岛美安纺织品科技有限公司 | PLA (polylactic acid) bi-component super-expansion super-elastic pearl cotton ball, processing equipment and manufacturing method thereof |
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| CN1171463A (en) * | 1996-06-17 | 1998-01-28 | 卡尔·弗罗伊登伯格公司 | Non-woven fabrics made of super-fine continuous fibre |
| JPH11131352A (en) * | 1997-10-31 | 1999-05-18 | Unitika Ltd | Nonwoven fabric for draining filtration |
| JPH11222728A (en) * | 1998-02-02 | 1999-08-17 | Toray Ind Inc | Polyester-based conjugate hollow fiber of uneven thickness |
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| CN102733094A (en) * | 2012-07-20 | 2012-10-17 | 浙江金三发非织造布有限公司 | PET/PA6 (Polyethylene Terephthalate/Poly Amide 6) double-component hollow orange peel fiber and production process thereof |
| CN103370464A (en) * | 2011-02-15 | 2013-10-23 | 三井化学株式会社 | Spunbonded nonwoven fabric |
| CN105200664A (en) * | 2015-09-25 | 2015-12-30 | 佛山市南海必得福无纺布有限公司 | Spun-bonded hollow double-component non-woven fabric |
-
2018
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5590611A (en) * | 1978-12-27 | 1980-07-09 | Teijin Ltd | Hygroscopic synthetic fibers and their preparation |
| CN1171463A (en) * | 1996-06-17 | 1998-01-28 | 卡尔·弗罗伊登伯格公司 | Non-woven fabrics made of super-fine continuous fibre |
| JPH11131352A (en) * | 1997-10-31 | 1999-05-18 | Unitika Ltd | Nonwoven fabric for draining filtration |
| JPH11222728A (en) * | 1998-02-02 | 1999-08-17 | Toray Ind Inc | Polyester-based conjugate hollow fiber of uneven thickness |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113403753A (en) * | 2021-05-21 | 2021-09-17 | 南通大学 | Processing method of two-component spinning/devillicate lapping two-step method non-woven material |
| CN113373597A (en) * | 2021-06-02 | 2021-09-10 | 四川亿耐特新材料有限公司 | Method for manufacturing non-woven felt by pure PET composite long fiber |
| CN116575182A (en) * | 2023-07-14 | 2023-08-11 | 江苏富之岛美安纺织品科技有限公司 | PLA (polylactic acid) bi-component super-expansion super-elastic pearl cotton ball, processing equipment and manufacturing method thereof |
| CN116575182B (en) * | 2023-07-14 | 2023-09-19 | 江苏富之岛美安纺织品科技有限公司 | PLA (polylactic acid) bi-component super-expansion super-elastic pearl cotton ball processing equipment and manufacturing method thereof |
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Application publication date: 20180928 |