CN116288934A - Improve stitch-bonded non-woven fabrics production line of thickness homogeneity - Google Patents
Improve stitch-bonded non-woven fabrics production line of thickness homogeneity Download PDFInfo
- Publication number
- CN116288934A CN116288934A CN202111561237.3A CN202111561237A CN116288934A CN 116288934 A CN116288934 A CN 116288934A CN 202111561237 A CN202111561237 A CN 202111561237A CN 116288934 A CN116288934 A CN 116288934A
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- Prior art keywords
- cotton
- stitch
- bonding
- cotton layer
- feeding
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 21
- 229920000742 Cotton Polymers 0.000 claims abstract description 152
- 238000003860 storage Methods 0.000 claims abstract description 41
- 238000009960 carding Methods 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 238000003825 pressing Methods 0.000 claims description 14
- 230000033001 locomotion Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000007665 sagging Methods 0.000 claims description 3
- 238000009940 knitting Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 8
- 238000005520 cutting process Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
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
- D04H1/52—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 applying or inserting filamentary binding elements
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G15/00—Carding machines or accessories; Card clothing; Burr-crushing or removing arrangements associated with carding or other preliminary-treatment machines
- D01G15/02—Carding machines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/66—Disintegrating fibre-containing textile articles to obtain fibres for re-use
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention relates to a stitch-bonding non-woven fabric production line for improving thickness uniformity, which comprises a carding mechanism and a stitch-bonding mechanism, wherein the carding mechanism comprises a carding device and a storage device, the storage device comprises a frame, a conveying device, a cotton guiding vehicle and a storage bin, a cotton layer prepared by the carding device is continuously conveyed to the cotton guiding vehicle through the conveying device, the cotton guiding vehicle drives the cotton layer to be sequentially stacked and stored in the storage bin, the stitch-bonding mechanism comprises the stitch-bonding device and a feeding device, the cotton layer in the storage bin is pulled by a feeding conveying belt to be conveyed to the stitch-bonding device, the stitch-bonding device is used for stitch-bonding the cotton layer to prepare the stitch-bonding non-woven fabric, the carding mechanism and the stitch-bonding mechanism can respectively reduce the stretching deformation of the cotton layer storage and stitch-bonding process, ensure the uniformity and controllability of the thickness and the breadth of the cotton layer, effectively improve the storage quantity of a single cotton layer, reduce the cutting times and the continuous connection times of the cotton layer, and the storage operation of the cotton layer is simpler and the storage and transfer operation of the cotton layer is more convenient.
Description
Technical Field
The invention relates to the field of stitch-bonded non-woven fabric production, in particular to a stitch-bonded non-woven fabric production line for improving thickness uniformity.
Background
The stitch-bonded non-woven fabric is one of dry non-woven fabrics, various short fibers are selected as raw materials to be carded into a net, and 80% -95% of short fibers and 5% -20% of high-quality polyester filament yarn warp-knitted loop structures are used for knitting the net and the yarn layers into the non-woven fabric through a stitch-bonding method in a non-woven fabric process.
In the prior art, raw materials of the stitch-bonded non-woven fabric need to be subjected to two processes of carding (cotton layer production) and stitch-bonding (cotton layer and filament yarn), because the speed of the cotton layer production by carding is generally larger than the stitch-bonding speed of the cotton layer, the carding process and the stitch-bonding process are generally carried out separately, equipment of the two processes can continuously run, the structure shown in the structure of fig. 3 is referred to, the cotton layer produced by the existing carding process is wound into a roll, the cotton roll is transferred to a stitch-bonding machine for production during stitch-bonding, and the roll-forming and the roll-releasing of the cotton roll can only be controlled at a stable linear speed, so that if the rotating speed of a drive motor for the roll-forming or the roll-releasing cannot be changed at any time, the cotton layer is easily stretched, the conditions of narrowing the width, thinning of the cotton layer (the change amplitude before and after stretching is more than 10%), the thickness of the cotton layer is not uniform, and the like are difficult to obtain effective control on the thickness (unit gram weight) of the cotton layer, further, the stitch-bonded non-woven fabric is difficult to control the cotton product, the quality of the cotton layer is poor, the quality stability is not good, and the quality of the cotton layer is not good, and the roll-bonding quality is limited by the roll-bonding is limited, and the number of the roll-bonding is limited because the roll-bonding is increased, and the number of the roll-bonding is more is limited.
Disclosure of Invention
The invention provides a stitch-bonded non-woven fabric production line for improving thickness uniformity, which aims to solve the problems that the existing stitch-bonded non-woven fabric production line is easy to deform in the cotton layer storage and stitch-bonding process, the product quality is unstable, the single cotton layer storage amount is small, the operation is more troublesome, the production efficiency is low and the like.
The invention adopts the following technical scheme:
a stitch-bonded non-woven fabric production line for improving thickness uniformity comprises a carding mechanism and a stitch-bonded mechanism; the carding mechanism comprises a carding device and a storage device, wherein the storage device comprises a frame, a conveying device, a cotton guiding vehicle and a storage bin, the conveying direction of the conveying device is used as the front, at least two guide rails extending forwards horizontally are arranged on the frame, the cotton guiding vehicle makes reciprocating sliding motion along the guide rails, cotton layers prepared by the carding device are continuously conveyed to the cotton guiding vehicle through the conveying device, the cotton guiding vehicle drives the cotton layers to be sequentially stacked and stored in the storage bin, the stitch-bonding mechanism comprises a stitch-bonding device and a feeding device, the feeding device comprises a feeding conveying belt, the cotton layers in the storage bin are pulled and conveyed to the stitch-bonding device through the feeding conveying belt, and the stitch-bonding device is used for stitch-bonding the cotton layers to form stitch-bonding non-woven fabrics.
Further improved, the cotton guiding trolley is provided with two cotton guiding rollers which are distributed in parallel, the cotton guiding rollers extend along the width direction of the cotton layer, the cotton layer passes through a gap between the two cotton guiding rollers, the cotton guiding trolley is provided with a cotton guiding motor, gears are fixedly arranged on the same sides of the two cotton guiding rollers, the cotton guiding motor drives the two cotton guiding rollers to rotate through a synchronous chain, and the cotton layer is promoted to move smoothly through the cotton guiding rollers.
Further improved, the guide rail is fixedly provided with five travel switches which are linearly arranged along the front-rear direction, the cotton guide vehicle is fixedly provided with a trigger block corresponding to the travel switches, and the distances between two adjacent travel switches from back to front are L1, L2, L3 and L4 in sequence, and L1: l2: l3: l4=6 to 8:4 to 6:4 to 6; the preferable ratio is 7:5:5:5, a travelling motor is fixedly arranged on the frame, the travelling motor drives the cotton guiding vehicle to move at a program set speed and in a program set direction through chain transmission, when a trigger block of the cotton guiding vehicle triggers a travel switch at a corresponding position, the travelling motor drives the cotton guiding vehicle to move at a program set running speed and in a rotating direction, preferably, the time proportion of the cotton guiding vehicle advancing forwards in L1, L2, L3 and L4 is 20-24:7-9:6-8:17-19 in sequence, and the preferred proportion is 22:8:7:18, the backward retreating time proportion of the cotton guide vehicle in L4, L3, L2 and L1 is 4-6:4-6:6-8 in sequence, and the preferable proportion is 5:5:5:7, through the operation stroke of this proportion, the setting of time for the cotton guide car stacks up the cotton layer and can realize according to appointed length and smooth stacking, and the probability that the cotton layer of the both sides of every layer fore-and-aft direction takes place the secondary folding is effectively reduced, and the cotton layer after the stacking is more even, and the crease rate is extremely low.
Further improved, the conveying device comprises a conveying belt and a conveying motor, the conveying motor is used for driving the conveying belt to run at a constant speed, a pressing rod is fixedly arranged at the feeding end of the conveying belt and used for attaching the cotton layer to the surface of the conveying belt, and the discharging end of the conveying belt is arranged right above the center of the guide rail.
Further improved, the feeding device comprises at least two feeding conveying belts which independently run, a buffer gap exists between every two adjacent feeding conveying belts, the cotton layer is in a natural sagging state in the buffer gap, the cotton layer in the storage bin is sequentially conveyed to the stitch-bonding device through the feeding conveying belts, further, the feeding end of each feeding conveying belt is provided with a passive pressing roller, the passive pressing rollers are used for attaching the cotton layer on the surface of the feeding conveying belt, and the tension of the cotton layer is buffered step by step when the cotton layer is conveyed to the stitch-bonding device in a larger stroke, so that the tensile deformation of the cotton layer during feeding is effectively reduced, the thickness uniformity and controllability of the cotton layer are ensured, and the product quality is guaranteed.
Further improved, the storage bin is of a structure with an open top and formed by a bottom plate and surrounding frames, and pulleys with a braking function are fixedly arranged at the bottom of the bottom plate of the storage bin.
As can be seen from the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages: the carding mechanism can reduce the tensile deformation of the cotton layer, ensure the uniformity and controllability of the thickness and the width of the cotton layer, effectively improve the storage capacity of the single cotton layer, reduce the cutting times and the continuous connection times of the cotton layer, and has simpler storage operation, low workload, more convenient storage and transportation of the cotton layer, more convenient use, and the stitch-bonding mechanism ensures that the tension of the cotton layer is buffered step by step when the cotton layer is sent to the stitch-bonding device in a larger stroke, effectively reduces the tensile deformation of the cotton layer during feeding, ensures the thickness uniformity and the controllability of the cotton layer, and is favorable for ensuring the good and stable quality of products.
Drawings
FIG. 1 is a schematic right-hand structural view of the carding mechanism of the present invention;
FIG. 2 is a right side view of the stitch-bonding mechanism of the present invention;
FIG. 3 is a schematic right-side view of a carding mechanism of the prior art;
in the figure: 1. a carding mechanism; 2. a stitch-bonding mechanism; 21. stitch-bonding means; 22. a feeding device; 220. a buffer gap; 221. a feeding conveyor belt; 222. a passive pressure roller; 3. a cotton layer; 11. a carding device; 12. a storage device; 13. a frame; 131. a guide rail; 132. a travel switch; 14. a transfer device; 141. a conveyor belt; 142. a conveying motor; 143. pressing a rod; 15. cotton guide vehicle; 151. a cotton guide roller; 152. a cotton guide motor; 153. a synchronous chain; 154. a trigger block; 16. a storage bin; 161. a bottom plate; 162. a frame; 163. a pulley; 17. and a driving motor.
Detailed Description
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
Referring to the structure shown in fig. 1 and 2, a stitch-bonded non-woven fabric production line for improving thickness uniformity comprises a carding mechanism 1 and a stitch-bonding mechanism 2; the carding mechanism 1 comprises a carding device 11 and a storage device 12, the storage device 12 comprises a rack 13, a conveying device 14, a cotton guiding vehicle 15 and a storage bin 16, the storage bin 16 is of a structure with an open top and formed by a bottom plate 161 and a surrounding frame 162, the cotton layers 3 are stacked on the bottom plate 161, four corners at the bottom of the bottom plate 161 of the storage bin 16 are respectively and fixedly provided with pulleys 163 with braking functions, the movement of the storage bin 16 is convenient, the conveying direction of the conveying device 14 is used as the front, two guide rails 131 extending horizontally and forwards are arranged on the rack 13, the cotton guiding vehicle 15 performs reciprocating sliding motion along the guide rails 131, the cotton layers 3 manufactured by the carding device 11 are continuously conveyed to the cotton guiding vehicle 15 through the conveying device 14, the cotton guiding vehicle 15 drives the cotton layers 3 to be sequentially stacked on the storage bin 16, the thickness and the width of the cotton layers 3 can be reduced through the arrangement of the carding mechanism 1, the uniformity and the controllability of the cotton layers 3 can be ensured, the single cotton layer 3 can be effectively improved, the number of times of cutting operations of the cotton layers 3 can be reduced, and the number of times of cotton layers 3 can be reduced, and the operation is simpler, and the operation is convenient, and the storage times of the cotton layers 3 can be more convenient.
With continued reference to fig. 1, the above-mentioned cotton guiding carriage 15 is equipped with two cotton guiding rollers 151 which are distributed in parallel, the cotton guiding rollers 151 extend along the width direction of the above-mentioned cotton layer 3, the cotton layer 3 passes through the gap between the two cotton guiding rollers 151, preferably, the width of the gap is greater than or equal to the thickness of the cotton layer 3, the above-mentioned cotton guiding carriage 15 is equipped with a cotton guiding motor 152, the same side of the two above-mentioned cotton guiding rollers 151 is fixedly provided with gears, the above-mentioned cotton guiding motor 152 drives the two cotton guiding rollers 151 to rotate through the synchronous chain 153, and the cotton guiding rollers 151 promote the smooth movement of the above-mentioned cotton layer 3.
With continued reference to fig. 1, the guide rail 131 is fixedly equipped with five travel switches 132 that are linearly arranged along the front-rear direction, the cotton guide carriage 15 is fixedly equipped with a trigger block 154 corresponding to the travel switches 132, as shown in fig. 1, the distances between two adjacent travel switches 132 from the rear to the front are L1, L2, L3, L4, and L1: l2: l3: l4=6 to 8:4 to 6:4 to 6; the preferable ratio is 7:5:5:5, the time ratio of the forward travel of the cotton guide carriage 15 in L1, L2, L3 and L4 is 20-24:7-9:6-8:17-19 in sequence, and the preferable ratio is 22:8:7:18, the backward retreating time proportion of the cotton guide trolley 15 in L4, L3, L2 and L1 is 4-6:4-6:6-8 in sequence, and the preferable proportion is 5:5:5:7, a travelling motor 17 is fixedly arranged on the frame 13, the travelling motor 17 drives the cotton guide vehicle 15 to move at a programmed speed and direction through chain transmission, and when a trigger block 154 of the cotton guide vehicle 15 triggers a travel switch 132 at a corresponding position, the travelling motor 17 drives the cotton guide vehicle 15 to move at a programmed running speed and a programmed rotating direction; through the setting of the operation stroke of this proportion, time for cotton guide 15 stacks up cotton layer 3 and can realize according to appointed length and smooth stacking, and the probability that the cotton layer 3 of the both sides of every layer fore-and-aft direction takes place the secondary folding is effectively reduced, and cotton layer 3 after the stack is more level, and the crease rate is extremely low, is favorable to stitch-bonding non-woven fabrics product quality's promotion and stability.
With continued reference to fig. 1, the conveying device 14 includes a conveying belt 141 and a conveying motor 142, the conveying motor 142 is used for driving the conveying belt 141 to run at a constant speed, a pressing rod 143 is fixedly mounted at a feeding end of the conveying belt 141, the pressing rod 143 is used for pressing the cotton layer 3 on the surface of the conveying belt 141, and a discharging end of the conveying belt 141 is arranged right above a center of the guide rail 131.
Referring to fig. 2, the stitch-bonding mechanism 2 includes a stitch-bonding device 21 and a feeding device 22, where the stitch-bonding device 21 is in the prior art, the feeding device 22 is preferably formed by two to four feeding conveyer belts 221 running independently, each feeding conveyer belt 221 is configured with a driving motor, a buffer gap 220 exists between two adjacent independent feeding conveyer belts 221, the cotton layer 3 is in a natural sagging state in the buffer gap 220, the cotton layer 3 in the storage bin 16 is pulled by the feeding conveyer belts 221 to be transferred to the stitch-bonding device 21, the stitch-bonding device 21 is used for stitch-bonding the cotton layer 3 to form a stitch-bonding non-woven fabric, further, a passive pressure roller 222 is configured at a feeding end of each feeding conveyer belt 221, and the passive pressure roller 222 is used for pressing the cotton layer 3 onto a surface of the feeding conveyer belt 221.
The foregoing is merely illustrative of specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the design concept shall fall within the scope of the present invention.
Claims (10)
1. The utility model provides an improve stitch-bonded non-woven fabrics production line of thickness homogeneity, includes carding mechanism (1) and stitch-bonded mechanism (2), carding mechanism (1) include carding unit (11) and storage device (12), its characterized in that: the storage device (12) comprises a frame (13), a conveying device (14), a cotton guiding vehicle (15) and a storage bin (16), wherein the conveying direction of the conveying device (14) is used as the front, at least two guide rails (131) extending forwards horizontally are arranged on the frame (13), the cotton guiding vehicle (15) slides back and forth along the guide rails (131), a cotton layer (3) manufactured by the carding device (11) is continuously conveyed to the cotton guiding vehicle (15) through the conveying device (14), the cotton guiding vehicle (15) drives the cotton layer (3) to be sequentially stacked and stored in the storage bin (16), the stitch-bonding mechanism (2) comprises a stitch-bonding device (21) and a feeding device (22), the feeding device (22) comprises a feeding conveying belt (221), the cotton layer (3) in the storage bin (16) is pulled and conveyed to the stitch-bonding device (21) through the feeding conveying belt (221), and the stitch-bonding device (21) is used for stitch-bonding the cotton layer (3) to form stitch-bonding non-woven fabrics.
2. The stitchbonded nonwoven production line of claim 1 in which uniformity of thickness is improved, wherein: the cotton guide vehicle (15) is provided with two cotton guide rollers (151) which are distributed in parallel, the cotton guide rollers (151) extend along the width direction of the cotton layer (3), and the cotton layer (3) passes through a gap between the two cotton guide rollers (151).
3. The stitchbonded nonwoven production line of claim 2 in which uniformity of thickness is improved, wherein: the cotton guiding vehicle (15) is provided with a cotton guiding motor (152), gears are fixedly arranged on the same sides of the cotton guiding rollers (151), the cotton guiding motor (152) drives the two cotton guiding rollers (151) to rotate through a synchronous chain (153), and smooth movement of the cotton layer (3) is promoted through the cotton guiding rollers (151).
4. The stitchbonded nonwoven production line of claim 2 in which uniformity of thickness is improved, wherein: five travel switches (132) that linearly arrange are fixedly equipped with along fore-and-aft direction on guide rail (131), guide cotton car (15) are last to be fixed to be equipped with trigger piece (154) that corresponds with travel switch (132), are L1, L2, L3, L4 in proper order by the interval of two adjacent travel switches (132) forward behind, and L1: l2: l3: l4=7: 5:5:5.
5. the stitchbonded nonwoven production line of claim 4 in which uniformity of thickness is improved, wherein: the frame (13) is fixedly provided with a travelling crane motor (17), and the travelling crane motor (17) drives the cotton guide vehicle (15) to move at a set speed and in a set direction according to a program through chain transmission.
6. The stitchbonded nonwoven production line of claim 5 in which uniformity of thickness is improved, wherein: the forward advancing time proportion of the cotton guide vehicle to the L1, the L2, the L3 and the L4 is 20-24:7-9:6-8:17-19 in sequence, and the backward retreating time proportion of the cotton guide vehicle to the L4, the L3, the L2 and the L1 is 4-6:4-6:6-8 in sequence.
7. The stitchbonded nonwoven production line of claim 1 in which uniformity of thickness is improved, wherein: the conveying device (14) comprises a conveying belt (141) and a conveying motor (142), the conveying motor (142) is used for driving the conveying belt (141) to run at a constant speed, a pressing rod (143) is fixedly arranged at the feeding end of the conveying belt (141), the pressing rod (143) is used for pressing the cotton layer (3) on the surface of the conveying belt (141), and the discharging end of the conveying belt (141) is arranged right above the center of the guide rail (131).
8. The stitchbonded nonwoven production line of claim 1 in which uniformity of thickness is improved, wherein: the feeding device (22) comprises at least two feeding conveying belts (221) which independently run, a buffer gap (220) is formed between every two adjacent feeding conveying belts (221), the cotton layers (3) in the buffer gap (220) are in a natural sagging state, and the cotton layers (3) in the storage bin (16) are sequentially conveyed to the stitch knitting device (21) through the feeding conveying belts (221).
9. The stitchbonded nonwoven production line of claim 8 in which uniformity of thickness is improved, wherein: the feeding ends of the feeding conveyer belt (221) are respectively provided with a passive pressing roller (222), and the passive pressing rollers (222) are used for pressing and attaching the cotton layers (3) on the surface of the feeding conveyer belt (221).
10. The stitchbonded nonwoven production line of claim 1 in which uniformity of thickness is improved, wherein: the storage bin (16) is of a structure with an open top and composed of a bottom plate (161) and surrounding frames (162), and a pulley (163) with a braking function is fixedly arranged at the bottom of the bottom plate (161) of the storage bin (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111561237.3A CN116288934A (en) | 2021-12-20 | 2021-12-20 | Improve stitch-bonded non-woven fabrics production line of thickness homogeneity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111561237.3A CN116288934A (en) | 2021-12-20 | 2021-12-20 | Improve stitch-bonded non-woven fabrics production line of thickness homogeneity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116288934A true CN116288934A (en) | 2023-06-23 |
Family
ID=86832763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111561237.3A Pending CN116288934A (en) | 2021-12-20 | 2021-12-20 | Improve stitch-bonded non-woven fabrics production line of thickness homogeneity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116288934A (en) |
-
2021
- 2021-12-20 CN CN202111561237.3A patent/CN116288934A/en active Pending
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