CN104988660B - A kind of solid hot-wind nonwoven cloth production method - Google Patents
A kind of solid hot-wind nonwoven cloth production method Download PDFInfo
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- CN104988660B CN104988660B CN201510339297.9A CN201510339297A CN104988660B CN 104988660 B CN104988660 B CN 104988660B CN 201510339297 A CN201510339297 A CN 201510339297A CN 104988660 B CN104988660 B CN 104988660B
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Abstract
The invention patent discloses a kind of three-dimensional hot-wind nonwoven cloth production method, its step includes: 1) shredding process 2) carding step 3) hot air shaping process 4) stereo shaping process 5) winding process, the step 4) by it is a pair of it is heatable it is intermeshing it is concave-convex to roller group at；Plane hot-wind nonwoven cloth temperature in roller convex into stereo shaping reaches 45 DEG C or more.The more secondary stereoforming method of this production method saves winding device and unwinding equipment and transit link, also saving energy consumption can be played, reduce cost, improve production efficiency, the effect for preventing material secondary from polluting, and also reduce the influence caused by acted on due to multiple winding tension to non-woven fabrics bulkiness and flexibility.
Description
Technical field
The invention belongs to producing technology of non-woven fabrics, and in particular to a kind of production method of solid hot-wind nonwoven cloth.
Background technique
Non-woven fabrics is widely used for the fields such as amenities and medical supplies, such as sanitary napkin, paper diaper at present, and three-dimensional
Hot-wind nonwoven cloth is due to 3 D stereo open-celled structure, so permeability is more preferable, infiltration rate faster, more fluffy softness
Comfortably.The fast speed of hot-wind nonwoven cloth production line, and needing non-woven fabrics to reach certain temperature when stereo shaping could be formed, it is raw
It is relatively slow to produce speed, so having certain gap in hot-wind nonwoven cloth production and stereo shaping speed, is difficult to realize speed sync,
Therefore it after the usually first production non-woven fabrics winding of existing three-dimensional hot-wind nonwoven cloth, then unreels, then passes through stereo shaping equipment
It is processed and is realized.This production method needs non-woven fabrics first to wind, transports stereo shaping equipment due to being secondary operation
Afterwards, it then unreels, therefore energy consumption is larger, and be easy to cause material contamination during transportation, waste of material is more, and non-woven fabrics
Due to tension force effect after winding twice, non-woven fabrics bulkiness and flexibility must be influenced.
Summary of the invention
It is an object of the invention to overcome the defect of existing production method, it is proposed that a kind of solid hot-wind nonwoven cloth producer
Method.
To achieve the above object, solution of the invention is:
A kind of solid hot-wind nonwoven cloth production method, specific steps include:
Step 1, shredding process, fiber carry out shredding；
Step 2, carding step, the fiber after shredding are combed into web；
Web is sent into baking oven progress hot wind and penetrates sizing, so that between fiber by step 3, hot air shaping process
Stick to each other forms plane hot-wind nonwoven cloth；
Step 4, stereo shaping process, stereo shaping equipment by it is a pair of it is heatable it is intermeshing it is concave-convex to roller group at；
Plane hot-wind nonwoven cloth temperature in roller convex into stereo shaping reaches 45 DEG C or more；Stereo shaping equipment, which is located in step 3, dries
The exit of case；
Step 5, winding process.
Hot blast temperature is 130 DEG C -200 DEG C in the step 3, and blower frequency is 10-50Hz, linear velocity 30m/min-
150m/min。
The heating temperature of step 4 crowned roll is 30 DEG C -160 DEG C, and the heating temperature of recessed roller is 0 DEG C -160 DEG C.
The heating temperature of step 4 crowned roll is 50 DEG C -140 DEG C, and the heating temperature of recessed roller is 20 DEG C -140 DEG C.
Plane hot-wind nonwoven cloth in the step 4 temperature when entering stereo shaping convex roller reaches 55 DEG C or more.
The protrusion on convex roller in the step 4 is needle.
The protrusion on convex roller in the step 4 is salient point.
Protrusion on step 4 crowned roll is salient point and needle.
The area of the root of single protrusion is 0.5mm in the step 42To 100mm2。
The height of protrusion on step 4 crowned roll is 1.0mm to 8.0mm.
Pressing equipment is equipped between stereo shaping equipment in the step 4 and the baking oven in step 3.
Hot-wind nonwoven cloth pre-heating device is equipped with before stereo shaping equipment in the step 4.
After aforementioned production method, the web after combing is after baking oven or pressing equipment, since stereo shaping is set
The standby baking oven that can be located at exports or close to pressing equipment, or preheating equipment is equipped with before stereo shaping equipment, so web exists
It is upper when reaching stereo shaping equipment to carry the temperature high compared with room temperature, and stereo shaping process needs in a heated state into
Row processing sizing, can enable hot-wind nonwoven cloth to be rapidly achieved setting temperature and be processed into three-dimensional non-woven fabric, in this way to make
It obtains nonwoven production and three-dimensional non-woven fabric realizes Fast synchronization production, and saving energy consumption can be played during stereo shaping
Effect.Meanwhile the more secondary stereoforming method of this production method saves winding device and unwinding equipment and transit link,
Saving energy consumption can be played, reduce cost, improve production efficiency, the effect for preventing material secondary from polluting, and also reduce due to
Influence caused by multiple winding tension effect to non-woven fabrics bulkiness and flexibility.
Detailed description of the invention
Fig. 1 is the production procedure schematic diagram of three-dimensional hot-wind nonwoven cloth of the invention；
Fig. 2A is the partial schematic diagram of stereo shaping equipment crowned roll of the present invention；
Fig. 2 B is the sectional view along A-A of Fig. 2A；
Fig. 3 A is the partial schematic diagram of stereo shaping equipment crowned roll of the present invention；
Fig. 3 B is the B-B direction cross-sectional view of Fig. 3 A；
Fig. 4 A is the partial schematic diagram of stereo shaping equipment crowned roll of the present invention；
Fig. 4 B is the C-C of Fig. 4 A to cross-sectional view；
Fig. 5 is the production procedure schematic diagram for the three-dimensional non-woven fabric that the present invention has pressing equipment；
Fig. 6 is the production procedure schematic diagram for the three-dimensional non-woven fabric that the present invention has preheating equipment.
Specific embodiment
In order to further explain the technical solution of the present invention, being explained in detail below by specific embodiment the present invention
It states.
Cooperate shown in Fig. 1 to Fig. 3, present invention discloses a kind of three-dimensional hot-wind nonwoven cloth production method, specific steps packets
It includes:
Step 1, shredding process a, fiber carry out shredding；
Step 2, carding step b, the fiber after shredding are combed into web；
Web is sent into baking oven progress hot wind and penetrates sizing, so that between fiber by step 3, hot air shaping process c
Stick to each other forms plane hot-wind nonwoven cloth；Wherein hot blast temperature is 130 DEG C -200 DEG C, and blower frequency is 10-50Hz, linear speed
Degree is 30m/min-150m/min；
Step 4, stereo shaping process d, stereo shaping equipment by it is a pair of it is heatable it is intermeshing it is concave-convex to roller group at；
Plane hot-wind nonwoven cloth temperature in roller convex into stereo shaping reaches 45 DEG C or more, preferably 55 DEG C or more；Stereo shaping equipment
The exit of baking oven in step 3；The heating temperature of its crowned roll is 30 DEG C -160 DEG C, and preferable temperature is 50 DEG C -140 DEG C；
The heating temperature of recessed roller is 0 DEG C -160 DEG C, and preferable temperature is 20 DEG C -140 DEG C；Protrusion on the convex roller be needle 1, salient point 2 or
Salient point 2 and needle 1；The area of the root of single protrusion is 0.5mm2To 100mm2；On convex roller protrusion height be 1.0mm extremely
8.0mm；
Step 5, winding process e.
Pressing equipment f is equipped between stereo shaping equipment in the step 4 and the baking oven in step 3.
Hot-wind nonwoven cloth pre-heating device g is additionally provided with before stereo shaping equipment in the step 4.
Embodiment 1
Cooperate shown in Fig. 1, Fig. 2A and Fig. 2 B, takes 1.5dtex*38mm PE/PP bicomponent fibers as raw material.Production
When, fiber is sent into carding machine after bale opener opens packet, shredding, web is combed into and enters in baking oven, pass through hot blast temperature are as follows:
145 DEG C, hot wind unit frequency: carrying out through heating in the hot wind of 38Hz, the PE of fiber sheath starts softening melting, formed between fiber
Several bonding points, simultaneously because capillary osmosis melting PE flow to sandwich layer PP and it is bonded form certain cohesive force, from
And assign web certain intensity.Engagement convex roller and recessed roller of the web by a pair of of heating after consolidation carries out stereo shaping
Processing forms three-dimensional perforated non-woven fabric, and wherein the protrusion of the convex roller is needle 1, and the area of the root of single needle is 3.14mm2, needle height
For 3.0mm, and the porcupine roller and recessed roller are located at baking oven exit, and porcupine roller temperature is 135 DEG C, through German Optris MS infrared measurement of temperature
Instrument detects plane hot-wind nonwoven cloth temperature when entering the convex roller of stereo shaping and reaches 65 DEG C, but non-woven fabrics pass can be by adjusting
The aciculiform of porcupine roller is changed, and can be circle, quadrangle, hexagon etc. is most cooling through non-woven fabrics afterwards, and winding forms punching nothing
Woven fabric coiled material.
After aforementioned production method, the web after combing dries after baking oven since stereo shaping equipment can be located at
Case outlet, thus web when reaching stereo shaping equipment on must carry the temperature high compared with room temperature, and stereo shaping work
Sequence needs to carry out processing sizing in a heated state, and hot-wind nonwoven cloth can be enabled to be rapidly achieved setting temperature processing in this way
At three-dimensional non-woven fabric, so that nonwoven production and three-dimensional non-woven fabric realize Fast synchronization production, and in stereo shaping mistake
It can play the role of saving energy consumption in journey.If stereo shaping equipment is not located at baking oven exit, non-woven fabrics is after deflector roll
Temperature will necessarily decline, so required temperature is not easy to reach in stereo shaping, pass is not easy to keep, speed of production it is inevitable compared with
Slowly, and energy consumption necessarily increases, and can not achieve the Fast synchronization production of non-woven fabrics and three-dimensional non-woven fabric.
Embodiment 2
Cooperate shown in Fig. 3 A, Fig. 3 B and Fig. 5, takes 2.0dtex*38mm PE/PET bicomponent fibers as raw material.Production
When, fiber is sent into carding machine after bale opener opens packet, shredding, web is combed into and enters in baking oven, pass through hot blast temperature are as follows:
150 DEG C, hot wind unit frequency: carrying out through heating in the hot wind of 45Hz, the PE of fiber sheath starts softening melting, formed between fiber
Several bonding points, engagement convex roller and recessed roller of the web by a pair of of heating after consolidation carry out stereo shaping and process to form solid
Perforated non-woven fabric, wherein the protrusion of the convex roller is salient point, and the root area of single salient point is 8.0mm2, bump height 2.5mm,
Wherein close to pressing equipment, convex roll temperature is 132 DEG C for the convex roller and recessed roller, and recessed roll temperature is 40 DEG C, red through German Optris MS
Outer temperature measurer detection plane hot-wind nonwoven cloth temperature in roller convex into stereo shaping reaches 70 DEG C.It is most cooling through non-woven fabrics afterwards,
Winding forms three-dimensional non-woven fabric coiled material.
Due to the presence of pressing equipment f, so that nonwoven surface anchoring point increases, and radially arranged, so nonwoven
Cloth surface is more smooth.And certain temperature is needed when plating, since web is uncolled after pressing, and stereo shaping equipment is tight
Adjacent pressing equipment can play saving so must have the temperature high compared with room temperature on web during stereo shaping
The effect of energy consumption.
Embodiment 3
Cooperate shown in Fig. 4 A, Fig. 4 B and Fig. 6, takes bis- groups of 1.5dtex*38mm PE/PP and 2.2dtex*38mm PE/PET
Part fiber is as raw material.When production, two kinds of fibers are sent into corresponding carding machine after bale opener opens packet, shredding respectively, it will
1.5dtex*38mm PE/PP web is as superficial layer, and 2.2dtex*38mm PE/PET web is as bottom, two layers of fiber
It is sent into baking oven after net superposition, passes through hot blast temperature are as follows: 140 DEG C, hot wind unit frequency: carrying out through heating in the hot wind of 45Hz,
Web preheating is carried out in the preheated equipment g of web after consolidation, wherein oven temperature is 130 DEG C, then using a pair
The convex roller of the engagement of heating and recessed roller carry out stereo shaping and process to form three-dimensional hot-wind nonwoven cloth, and wherein the protrusion of the convex roller is salient point
2 and needle 1, the root area of single salient point is 7.0mm2, bump height 2.4mm, the root area of single needle is 2.0mm2, needle
A height of 2.4mm, convex roll temperature are 132 DEG C, and recessed roll temperature is 40 DEG C, through German Optris MS infrared radiation thermometer detection plane heat
Wind non-woven fabrics temperature in roller convex into stereo shaping reaches 70 DEG C, and most cooling through non-woven fabrics afterwards, winding forms three-dimensional non-woven fabric
Coiled material.
Due to the presence of preheating equipment, so that non-woven fabrics can reach higher temperature before entering back into stereo shaping equipment
Degree so that non-woven fabric solid when forming can fast shaping, advantageously reduce energy consumption, improve speed of production.
Claims (8)
1. a kind of solid hot-wind nonwoven cloth production method, specific steps include:
Step 1, shredding process, fiber carry out shredding；
Step 2, carding step, the fiber after shredding are combed into web；
Web is sent into baking oven progress hot wind and penetrates sizing, so that mutual between fiber by step 3, hot air shaping process
Adhesion forms plane hot-wind nonwoven cloth；Linear velocity is 30m/min-150m/min；
Step 4, stereo shaping process, stereo shaping equipment by it is a pair of it is heatable it is intermeshing it is concave-convex to roller group at；Convex roller
On the height of protrusion be 2.4mm to 8.0mm, the protrusion on the convex roller is needle；Plane hot-wind nonwoven cloth enter it is three-dimensional at
Temperature reaches 65 DEG C or more when type convex roller；Stereo shaping equipment is located at the exit of baking oven in step 3；The stereo shaping is set
Hot-wind nonwoven cloth pre-heating device is equipped with before standby；
Step 5, winding process.
2. a kind of three-dimensional hot-wind nonwoven cloth production method as described in claim 1, it is characterised in that: hot wind in the step 3
Temperature is 130 DEG C -200 DEG C, and blower frequency is 10-50Hz.
3. a kind of three-dimensional hot-wind nonwoven cloth production method as described in claim 1, it is characterised in that: step 4 crowned roll
Heating temperature be 30 DEG C -160 DEG C, the heating temperature of recessed roller is 0 DEG C -160 DEG C.
4. a kind of three-dimensional hot-wind nonwoven cloth production method as claimed in claim 3, it is characterised in that: step 4 crowned roll
Heating temperature be 50 DEG C -140 DEG C, the heating temperature of recessed roller is 20 DEG C -140 DEG C.
5. a kind of three-dimensional hot-wind nonwoven cloth production method as described in claim 1, it is characterised in that: convex in the step 4
Protrusion on roller is salient point.
6. a kind of three-dimensional hot-wind nonwoven cloth production method as described in claim 1, it is characterised in that: step 4 crowned roll
On protrusion be salient point and needle.
7. a kind of three-dimensional hot-wind nonwoven cloth production method as described in claim 1,5 or 6, it is characterised in that: in the step 4
The area of the root of single protrusion is 0.5mm2To 100mm2。
8. a kind of three-dimensional hot-wind nonwoven cloth production method as described in claim 1, it is characterised in that: vertical in the step 4
Pressing equipment is equipped between baking oven in forming equipment and step 3.
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| CN201510339297.9A CN104988660B (en) | 2015-06-18 | 2015-06-18 | A kind of solid hot-wind nonwoven cloth production method |
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| CN201510339297.9A CN104988660B (en) | 2015-06-18 | 2015-06-18 | A kind of solid hot-wind nonwoven cloth production method |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105748209B (en) * | 2016-03-16 | 2022-04-26 | 厦门延江新材料股份有限公司 | Perforated non-woven fabric and production method thereof |
| CN106943237A (en) * | 2017-03-27 | 2017-07-14 | 泉州市汉威机械制造有限公司 | A kind of single layered stereo fabric and its shaped device |
| CN107460634A (en) * | 2017-07-12 | 2017-12-12 | 大源无纺新材料（天津）有限公司 | A kind of pure cotton punching non-woven cloth and its preparation method and application |
| CN107815790A (en) * | 2017-09-28 | 2018-03-20 | 厦门延江新材料股份有限公司 | Apertured nonwoven cloth hot blast shaped device |
| CN108773092A (en) * | 2018-04-27 | 2018-11-09 | 厦门延江新材料股份有限公司 | A kind of production method of composite membrane |
| TWI731294B (en) * | 2019-01-22 | 2021-06-21 | 南六企業股份有限公司 | Three-dimensional pattern hot-air non-woven online manufacturing process and its products |
| CN112281305A (en) * | 2020-10-16 | 2021-01-29 | 广东佳丝维新材料科技有限公司 | Preparation method of high-elasticity hot air non-woven material with good recovery |
| CN112301545A (en) * | 2020-10-22 | 2021-02-02 | 安徽元琛环保科技股份有限公司 | Preparation method of hot-air cotton and prepared hot-air cotton |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3883460B2 (en) * | 2002-03-25 | 2007-02-21 | 花王株式会社 | 3D sheet |
| WO2010150611A1 (en) * | 2009-06-24 | 2010-12-29 | チッソ株式会社 | Nonwoven fabric with uneven surface structure, and product using same |
| JP5538977B2 (en) * | 2010-03-29 | 2014-07-02 | ユニ・チャーム株式会社 | Non-woven sheet and method for producing the same |
| CN101864640A (en) * | 2010-06-28 | 2010-10-20 | 北京大源非织造有限公司 | Method for manufacturing novel non-woven cloth |
| CN102140746B (en) * | 2011-03-15 | 2014-08-06 | 杭州唯可机械制造有限公司 | Three-dimensional punching mechanism and punching method of disposable sanitary material |
| JP5514948B1 (en) * | 2012-12-19 | 2014-06-04 | 花王株式会社 | Nonwoven fabric and method for producing the same |
| CN103422256B (en) * | 2013-07-17 | 2016-08-24 | 厦门延江新材料股份有限公司 | A kind of hot-wind nonwoven cloth |
| CN103757822B (en) * | 2014-01-28 | 2018-08-28 | 嘉兴学院 | A kind of bubble type flexible non-woven cloth and its manufacturing method |
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