CN107475900B - One-step gradient filter material production device and operation method thereof - Google Patents
One-step gradient filter material production device and operation method thereof Download PDFInfo
- Publication number
- CN107475900B CN107475900B CN201710897330.9A CN201710897330A CN107475900B CN 107475900 B CN107475900 B CN 107475900B CN 201710897330 A CN201710897330 A CN 201710897330A CN 107475900 B CN107475900 B CN 107475900B
- Authority
- CN
- China
- Prior art keywords
- machine
- net
- fiber
- needling
- cotton
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
- D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
- D04H1/498—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres entanglement of layered webs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
The invention discloses a one-step gradient filter material production device and an operation method thereof, and the device comprises an unpacking machine, a carding machine, a cross lapping machine, a net-turning machine, a base cloth uncoiling machine, a double-plate needling machine, a four-plate needling machine, a first cloth storage rack and a first coiling machine, wherein the unpacking machine is connected with a coarse opening machine, the coarse opening machine is connected with a large-bin cotton mixing box, the front part of the large-bin cotton mixing box is provided with a fine opening machine, the fine opening machine is connected with a cotton storage box, the cotton storage box is connected with an air pressure cotton feeding box, the air pressure cotton feeding box is connected with a carding machine, the cross lapping machine, the pre-needling machine and the net-turning machine are sequentially connected, the net-turning machine divides a fiber net into two paths, one path is connected with the second cloth storage rack and the second coiling machine, the other path is connected with the fiber net uncoiling machine and the base cloth uncoiling machine, and the uncoiled fiber net and the base cloth are sent into the double-plate, the four-plate needling machine is connected with the first cloth storage rack and the first winding machine. The invention reduces the production cost and improves the production efficiency.
Description
Technical Field
The invention relates to the field of filter material production, in particular to a one-step gradient filter material production device and an operation method thereof.
Background
The integral structure of the chemical fiber needled felt adopts a sandwich structure design, namely the dust facing surface and the air purifying surface of the needled felt are mixed fiber layers made of different types of fibers in different proportions, the middle rib and bone layer is a base fabric layer, and the gradient structure filter material is designed into a gradient structure containing superfine fibers on the basis of a three-layer structure of the needled felt, and the superfine fibers in a certain proportion are generally added on the dust facing surface. The design of the gradient structure ensures larger air permeability and filtering air speed on the basis of obviously improving the filtering precision, reduces the running resistance of the dust remover and prolongs the service life of the filter material, the filter material with the sandwich structure and the gradient structure containing the superfine fiber are a two-step forming process when a single-comb single-paving complete set of manufacturing equipment is used for production,
the first step is as follows: and preparing the fiber web. Namely, the fiber web on the dust facing side and the fiber web on the air purifying side are respectively prepared and wound to be taken down from a coiling machine for standby. Because the single comb and single paving structure can not produce two kinds of fiber webs simultaneously, the two kinds of fiber webs can only be produced respectively from front to back.
The second step is that: and (5) needle punching and forming. And matching the prepared fiber webs on the dust facing surface and the air purifying surface, unreeling the fiber webs and the base fabric on a needling unreeling platform simultaneously, and manufacturing the gradient structure filter material by needling.
At present, when a single-comb single-paving complete set manufacturing device is used for producing filter materials in domestic and foreign industries, a two-step process is mainly adopted for production, and the process has the following defects:
firstly, the speed is limited to be improved, and the production efficiency is lower
The main needling process of the original production line is only provided with two needling machines, and the set range of needling density in the process is limited. The speed of the vehicle is limited and is difficult to break through. And the production of the main needling process has hysteresis, the fiber webs on the dust facing surface and the air purifying surface can enter the needling process after being prepared, and the machine must be stopped every time for changing the rolls, so that the production efficiency is low.
Secondly, the cost control difficulty is high.
A. The personnel allocation is high. The original two-step production line is divided into a carding process and a needling process, 8 persons are allocated to the whole production line, and the labor cost is high.
B. The raw material feeding feedback adjustment is slow. When different types of filter materials are produced and prepared, the gram weight range, other performance indexes and raw material input amount of a product are adjusted in time according to data feedback of a subsequent process, the quality of the product is qualified, and the cost is controlled to the maximum extent. However, in the original two-step production process, a certain amount of fiber webs on the dust-facing surface and the air-purifying surface must be prepared and taken off in advance for standby, so that the process and quality adjustment period is prolonged. In addition, in the fiber web preparation process, the waiting cost exists in the main needling process, and the quality cost control is not facilitated.
Disclosure of Invention
The invention aims to provide a one-step gradient filter material production device and an operation method thereof, so as to solve the technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a gradient filter material production device with one-step method comprises an uncoiler, a large-bin cotton mixing box, a carding machine, a cross lapping machine, a fiber web uncoiling machine, a base fabric uncoiling machine, a double-plate upper needling machine, a double-plate lower needling machine, a four-plate needling machine, a first cloth storage rack and a first coiling machine, wherein the uncoiler is connected with a coarse opener, the coarse opener is connected with the large-bin cotton mixing box through a cotton conveying pipeline, the front part of the large-bin cotton mixing box is provided with a fine opener, the fine opener is connected with the cotton storage box through the cotton conveying pipeline, the cotton storage box is connected with an air pressure cotton feeding box, the air pressure cotton feeding box is connected with the carding machine, the cross lapping machine, the pre-needling machine and the lapping machine are sequentially connected, the lapping machine cuts the fiber web into two paths, one path is connected with the second cloth storage rack and the second coiling machine, the path is changed in direction through a lapping roller which forms an angle of 30-70 degrees with the fiber web in the lapping machine and is connected with the base fabric uncoiling machine and, the unwound fiber web and the base fabric are sent to a double-plate needling machine, a double-plate needling machine and a four-plate needling machine together, and the four-plate needling machine is connected with the first fabric storage rack and the first winding machine.
Preferably, the width of the fiber web discharged by the pre-needling machine is 1-10m, and the fiber web is divided into a pair of fiber webs with the width of 0.1-9.9m by a cutter.
Preferably, the width of the fiber web discharged by the pre-needling machine is 5m, and the fiber web is divided into a pair of fiber webs with the width of 2.5m by a cutter.
Compared with the prior art, the invention has the following advantages: the invention integrates and optimizes and innovatively transforms the original 'two-step method' filter material production line, adds the screen turning device and the unwinding device, forms a novel production process of a one-step forming method and a complete set of production line equipment so as to reduce the production cost, and the screen turning machine has a direct turning mode and a half turning mode, and the direct turning mode is as follows: the width of the fiber web discharged by the pre-needling machine is 1-10m, the fiber web is divided into a pair of fiber webs with the width of 0.1-9.9m by a cutter, the fiber webs pass through different upper and lower guide rollers and upper and lower net turning rollers (forming an angle of 30-70 degrees with the direction of the fiber web and changing the direction of the fiber web) respectively to be used as upper and lower layer fiber webs, meanwhile, the base cloth is unwound and synchronously conveyed to a conveying leather curtain of the net turning machine from the middle of the upper and lower layer fiber webs, and enters the needling machine for needling reinforcement forming, and the mode is suitable for producing common filter materials with the same types and specifications of dust-facing and air-purifying fibers; half-turning mode: the half of the on-line fiber webs (dust-facing fiber webs) are directly conveyed to a second winding machine for winding for standby without changing the trend through a web turning roller; the other half of the fiber web facing the dust surface changes the trend through an upper net turning roller of the net turning machine, and is synchronously conveyed to a needle machine together with the unwound fiber web facing the dust surface and the base cloth for needling reinforcement, the feeding type is changed after a certain number of meters are produced, the on-line fiber web is converted into the dust surface, the unwound fiber web is converted into the dust surface, and continuous circulation production is performed according to the changing type, so that the mode is suitable for producing the filter material with the gradient structure, wherein the fiber types and the specifications of the dust surface and the air surface are different; the configuration of the whole line machine is adjusted and optimized, needling equipment is additionally arranged, and the whole line speed and the production efficiency are greatly improved.
Drawings
FIG. 1 is a schematic diagram of a one-step gradient filter material production device.
In the figure: 1. the device comprises a bale opener, 2 parts of coarse opening, 3 parts of a pneumatic cotton feeding box, 4 parts of a cotton storage box, 5 parts of fine opening, 6 parts of a large-bin cotton mixing box, 7 parts of a fiber web uncoiling machine, 8 parts of a base cloth uncoiling machine, 9 parts of a second coiling machine, 10 parts of a second cloth storage rack, 11 parts of a net turning machine, 12 parts of a first coiling machine, 13 parts of a first cloth storage rack, 14 parts of a four-plate needle machine, 15 parts of a two-plate lower needle machine, 16 parts of a two-plate upper needle machine, 17 parts of a pre-needle machine, 18 parts of a cross lapping machine, 19 parts of a carding machine.
Detailed Description
The invention is explained in further detail below with reference to the figures and the specific embodiments.
As shown in figure 1, the one-step gradient filter material production device comprises an unpacking machine 1, a large-bin cotton mixing box 6, a carding machine 19, a cross lapping machine 18, a net turning machine 11, a fiber web uncoiling machine 7, a base fabric uncoiling machine 8, a double-plate upper needling machine 16, a double-plate lower needling machine 15, a four-plate needling machine 14, a first cloth storage rack 13 and a first coiling machine 12, wherein the unpacking machine 1 is connected with a coarse opening 2, the coarse opening 2 is connected with the large-bin cotton mixing box 6 through a cotton conveying pipeline, the front part of the large-bin cotton mixing box 6 is provided with a fine opening 5, the fine opening 5 is connected with a cotton storage box 4 through a cotton conveying pipeline, the cotton storage box 4 is connected with an air pressure cotton feeding box 3, the air pressure cotton feeding box 3 is connected with the carding machine 19, the cross lapping machine 18, a pre-needling machine 17 and the net turning machine 11 are sequentially connected, the net turning machine 11 cuts the fiber web into two paths, one path is connected with a second cloth storage rack 10 and a second coiling machine 9, the other path of the fiber is changed in direction by a fiber net turning roller which is arranged in a fiber net turning machine 11 and forms an angle of 30-70 degrees (preferably 45 degrees) with the direction of the fiber net, and is connected with a fiber net uncoiling machine 7 and a base cloth uncoiling machine 8, the uncoiled fiber net and the base cloth are sent to a double-plate needling machine 16, a double-plate needling machine 15 and a four-plate needling machine 14 together, and the four-plate needling machine 14 is connected with a first cloth storage rack 13 and a first coiling machine 12.
The process operation flow of the invention is as follows: the bale opener 1 is communicated through a cotton conveying channel, the fibers and the fiber bundles which are preliminarily mixed are sent to a rough opening machine 2, the fibers and the fiber bundles which are preliminarily opened are conveyed to a large-bin cotton mixing box 6 by air flow through a cotton conveying pipeline for further uniform mixing, then the fiber is further opened by fine opening 5 and then is transported to a cotton storage box 4 by a cotton transportation pipeline, and then the fiber is fed into a carding machine 19 by an air pressure cotton feeding box 3 to be finely carded, opened, uniformly mixed and carded into a single fiber shape, the thin fiber web is output by a carding machine 19 net outlet mechanism and is conveyed to a cross lapping machine 18 through a belt for lapping, then the lapped fiber web is fed into a pre-needling machine 17 through a lapping curtain and a cotton conveying curtain for preliminary needling forming to form a wool net with a certain width, the wool net is cut into A, B two-sided wool nets with 1/2 widths through a cutter and enters a net turning machine 11, the A coarse mesh bypasses the mesh turning machine and is wound and taken off by a second winding machine 9 through a second cloth storage rack 10 for standby; the B woolen nets are changed in direction through a net turning roller which forms an angle of 30-70 degrees with the direction of the fiber nets in the net turning machine, and are sent into a double-plate needling machine 16, a double-plate needling machine 15 and a four-plate needling machine 14 together with the fiber nets and the base cloth which are unwound by a fiber net unwinding machine 7 and a base cloth unwinding machine 8 for needling reinforcement forming, and are wound by a first winding machine 12 through a first cloth storage rack 13.
The foregoing is a preferred embodiment of the present invention, and it will be apparent to those skilled in the art that variations, modifications, substitutions and alterations can be made in the embodiment without departing from the principles and spirit of the invention.
Claims (4)
1. The gradient filter material production device comprises an unpacking machine (1), a large-bin cotton mixing box (6), a carding machine (19), a cross lapping machine (18), a net turning machine (11), a fiber net uncoiling machine (7), a base cloth uncoiling machine (8), a double-plate upper needling machine (16), a double-plate lower needling machine (15), a four-plate needling machine (14), a first cloth storage rack (13) and a first coiling machine (12), and is characterized in that the unpacking machine (1) is connected with a coarse opening machine (2), the coarse opening machine (2) is connected with the large-bin cotton mixing box (6) through a cotton conveying pipeline, a fine opening machine (5) is installed at the front part of the large-bin cotton mixing box (6), the fine opening machine (5) is connected with a cotton storage box (4) through a cotton conveying pipeline, the cotton storage box (4) is connected with an air pressure cotton feeding box (3), the air pressure cotton feeding box (3) is connected with the carding machine (19), and the carding machine (19) and the cross lapping machine (18), The pre-needling machine (17) and the net-turning machine (11) are sequentially connected, a belt used for conveying thin fiber nets is arranged between a net outlet mechanism of the carding machine (19) and the cross net-laying machine (18), a net-laying curtain is arranged on the cross net-laying machine (18), a cotton conveying curtain is arranged between the cross net-laying machine (18) and the pre-needling machine (17), a conveying curtain and an upper guide roller and a lower guide roller used for dividing the fiber nets into two paths are arranged on the net-turning machine (11), the net-turning machine (11) cuts the fiber nets into two paths, one path is connected with the second cloth storage rack (10) and the second winding machine (9), the other path changes direction through a net-turning roller which is arranged in the net-turning machine (11) and forms an angle of 30-70 degrees with the trend of the fiber nets, and is connected with the fiber net unwinding machine (7) and the base cloth unwinding machine (8), and the unwound fiber nets are sent into the double-plate upper needling machine (16), the double-plate lower needling machine (15) together with, The four-plate needling machine (14), the four-plate needling machine (14) is connected with the first cloth storage rack (13) and the first winding machine (12).
2. The production device of one-step gradient filter material as claimed in claim 1, wherein the width of the fiber web coming out of the pre-needling machine (17) is 1-10m, and the fiber web is divided into a pair of fiber webs with the width of 0.1-9.9m by a cutter.
3. The production device of one-step gradient filter material as claimed in claim 2, wherein the width of the fiber web coming out of the pre-needling machine (17) is 5m, and the fiber web is divided into a pair of fiber webs with the width of 2.5m by a cutter.
4. A method of operating a one-step gradient filter material production apparatus as claimed in any one of claims 1 to 3: the method is characterized by comprising the following steps: the bale opener is communicated through a cotton conveying channel, the fibers and the fiber bundles which are preliminarily mixed are sent to a large-bin cotton mixing box for further uniform mixing through air flow after preliminary opening through a cotton conveying pipeline, then the fiber is further opened by fine opening and is transported to a cotton storage box by a cotton conveying pipeline, and then the fiber is fed into a carding machine by an air pressure cotton feeding box to be finely carded, opened, uniformly mixed and carded into a single fiber shape, the thin fiber web is output by a carding machine net output mechanism and is conveyed to a cross lapping machine through a belt for lapping, then the lapped fiber web is fed into a pre-needling machine through a lapping curtain and a cotton conveying curtain for preliminary needling forming to form a wool net with a certain width, the wool net is cut into A, B two-side wool nets with 1/2 widths through a cutter and enters a net turning machine, the A coarse mesh bypasses the mesh turning machine and is wound and taken down by a second winding machine for standby through a second cloth storage rack; and B, the woolen nets change directions through a net turning roller which forms an angle of 30-70 degrees with the direction of the fiber nets in the net turning machine, and are sent into a double-plate needling machine, a double-plate needling machine and a four-plate needling machine together with the fiber nets and the base cloth which are unwound by the fiber net unwinding machine and the base cloth unwinding machine for needling reinforcement forming, and are wound by a first winding machine through a first cloth storage rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897330.9A CN107475900B (en) | 2017-09-28 | 2017-09-28 | One-step gradient filter material production device and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710897330.9A CN107475900B (en) | 2017-09-28 | 2017-09-28 | One-step gradient filter material production device and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107475900A CN107475900A (en) | 2017-12-15 |
| CN107475900B true CN107475900B (en) | 2020-11-13 |
Family
ID=60604833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710897330.9A Active CN107475900B (en) | 2017-09-28 | 2017-09-28 | One-step gradient filter material production device and operation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107475900B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162020A (en) * | 2018-11-23 | 2019-01-08 | 重庆璨月新材料有限公司 | A kind of tensile type fiberglass needled mat and its production technology and equipment |
| CN109943928A (en) * | 2019-05-05 | 2019-06-28 | 常熟市振泰无纺机械有限公司 | A kind of production technology using nonwoven needled filter cloth production combination machine |
| CN110438667A (en) * | 2019-07-31 | 2019-11-12 | 苏州鸿源特种纤维制品有限公司 | A kind of needle-punched production line equipment and its production technology |
| CN114395859B (en) * | 2022-01-19 | 2023-06-02 | 福建聚华非织造科技有限公司 | Automatic production line and production method for degradable non-woven fabrics |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2970365A (en) * | 1958-08-04 | 1961-02-07 | Morgenstern David | Needled fabric and method |
| JPH09302564A (en) * | 1996-05-09 | 1997-11-25 | Okuma Mach Works Ltd | Apparatus for removing fly waste in punching process in production of nonwoven fabric |
| CN103233324A (en) * | 2013-04-08 | 2013-08-07 | 江阴骏华纺织科技有限公司 | Low-cost collagen fiber reconstituted leather and manufacturing method thereof |
| CN203543231U (en) * | 2013-11-18 | 2014-04-16 | 福建南纺股份有限公司 | Double needled woven cloth compounding production line |
| KR20140094319A (en) * | 2013-01-22 | 2014-07-30 | 주식회사 유일 | Manufacturing method of cushion for seat, and Manufacturing method of vehicle seat using the same |
| CN104153129A (en) * | 2014-08-29 | 2014-11-19 | 井孝安 | Non-woven melt direct spinning one-step method continuous production device and technology |
| CN204547223U (en) * | 2015-03-23 | 2015-08-12 | 上海仁众实业股份有限公司 | Two-sided geotextiles GCL |
| CN207224776U (en) * | 2017-09-28 | 2018-04-13 | 中材科技膜材料（山东）有限公司 | A kind of one-step method gradient filter media process units |
-
2017
- 2017-09-28 CN CN201710897330.9A patent/CN107475900B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2970365A (en) * | 1958-08-04 | 1961-02-07 | Morgenstern David | Needled fabric and method |
| JPH09302564A (en) * | 1996-05-09 | 1997-11-25 | Okuma Mach Works Ltd | Apparatus for removing fly waste in punching process in production of nonwoven fabric |
| KR20140094319A (en) * | 2013-01-22 | 2014-07-30 | 주식회사 유일 | Manufacturing method of cushion for seat, and Manufacturing method of vehicle seat using the same |
| CN103233324A (en) * | 2013-04-08 | 2013-08-07 | 江阴骏华纺织科技有限公司 | Low-cost collagen fiber reconstituted leather and manufacturing method thereof |
| CN203543231U (en) * | 2013-11-18 | 2014-04-16 | 福建南纺股份有限公司 | Double needled woven cloth compounding production line |
| CN104153129A (en) * | 2014-08-29 | 2014-11-19 | 井孝安 | Non-woven melt direct spinning one-step method continuous production device and technology |
| CN204547223U (en) * | 2015-03-23 | 2015-08-12 | 上海仁众实业股份有限公司 | Two-sided geotextiles GCL |
| CN207224776U (en) * | 2017-09-28 | 2018-04-13 | 中材科技膜材料（山东）有限公司 | A kind of one-step method gradient filter media process units |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107475900A (en) | 2017-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107475900B (en) | One-step gradient filter material production device and operation method thereof | |
| CN107237048B (en) | Method for producing cloud cotton non-woven fabric by spunbonding method | |
| CN210048223U (en) | High-precision composite cloth lapper | |
| JPH0351324A (en) | High speed crosslapper | |
| TR200201707T2 (en) | Production method of a complex non-woven fabric and the resulting new fabric. | |
| CN103180501A (en) | Method and apparatus for producing composite nonwoven | |
| US2927350A (en) | Method of and apparatus for producing a felt-like fibrous material | |
| CN109943928A (en) | A kind of production technology using nonwoven needled filter cloth production combination machine | |
| CN112709006A (en) | Superfine basalt fiber net tire production line | |
| CN112813585A (en) | Non-woven fabric lapping device and application thereof in non-woven fabric production | |
| CN108998891A (en) | PTFE Nomex lapping control device | |
| CN108018652B (en) | Machine oil filter element end cover non-woven fabric material and manufacturing process thereof | |
| CN212223267U (en) | Device for producing wood pulp spunlace non-woven fabric by wet process fiber web lamination | |
| CN2787701Y (en) | Non-woven fabric forming apparatus | |
| CN115262081B (en) | Production process and production line of high-strength continuous glass fiber fireproof insulation board | |
| CN207224776U (en) | A kind of one-step method gradient filter media process units | |
| CN2670389Y (en) | Bulky yarn made from nno-weavon fabrics | |
| CN216782993U (en) | Cow leather fiber composite base material production line | |
| CN202369699U (en) | Drafting and leveling device | |
| CN212375497U (en) | Small-size spinning reciprocating lapping polypropylene fiber geotextile production line | |
| US3224181A (en) | Method of producing yarn from textile fiber webs | |
| CN207789942U (en) | A kind of three-in-one coating complex machine | |
| CN214831023U (en) | Production device of wood pulp composite non-woven fabric | |
| CN220031417U (en) | Multipurpose separation production device for non-woven fabric | |
| CN214938768U (en) | Production device of double-layer wood pulp composite non-woven fabric |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |