CN104711891A - Wet-process non-woven fabric manufacturing method and manufacturing equipment - Google Patents
Wet-process non-woven fabric manufacturing method and manufacturing equipment Download PDFInfo
- Publication number
- CN104711891A CN104711891A CN201510117847.2A CN201510117847A CN104711891A CN 104711891 A CN104711891 A CN 104711891A CN 201510117847 A CN201510117847 A CN 201510117847A CN 104711891 A CN104711891 A CN 104711891A
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- China
- Prior art keywords
- fibre web
- nonwoven fabrics
- wet nonwoven
- wet
- roller
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/06—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines of the cylinder type
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F9/00—Complete machines for making continuous webs of paper
- D21F9/04—Complete machines for making continuous webs of paper of the cylinder type
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- Nonwoven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Paper (AREA)
Abstract
The invention discloses a wet-process non-woven fabric manufacturing method. The wet-process non-woven fabric manufacturing method sequentially comprises a web-forming procedure, a vacuum-transferring procedure and a drying procedure of a sizing agent. The web-forming procedure comprises that the sizing agent is adhered on a mesh cage roller to form a fibre web. The vacuum-transferring procedure comprises that a vacuum-transferring roller matched with the mesh cage roller transfers the fibre web to a polyester mesh belt through vacuum suction, wherein the polyester mesh belt is wound around multiple working rollers and the vacuum-transferring roller. The wet-process manufacturing method and the manufacturing equipment which are applicable to 15 - 150 g/m2 non-woven fabric are provided. According to the wet-process non-woven fabric manufacturing method and the manufacturing equipment, a felt is no longer used, and meanwhile the whole production line is shortened.
Description
Technical field
The present invention relates to wet nonwoven fabrics manufacture method and manufacturing equipment, particularly for the manufacture of 15-150g/ ㎡ nonwoven fabric.
Background technology
In the manufacturing technique of wet method aspunlacednonwovenfa,ric in the past, in wet moulding operation, on the netted mesh conveyor belt of regulation object, simultaneously feeding fiber and water are to form fibre web, felt contacts with aforementioned mesh conveyor belt, because aforementioned mesh conveyor belt is different with the surface roughness of felt, fibre web on mesh conveyor belt once turn copy above felt, by this felt, fibre web is transplanted on fiber tangling process.Such as patent CN99119106.4 is this type of representative technology, and these class methods can realize for the nonwoven fabric that thickness is comparatively abundant, and slurry residual on its felt is little for the impact of whole nonwoven fabric.But, if for the production of the nonwoven fabric that thickness is less time, slurry residual on felt just affects greatly nonwoven fabric, such as makes nonwoven thickness uneven, affects its gas permeability and uniformity.Even there is macroscopic aperture.
In prior art, there is no relevant record, can the nonwoven fabric of the effective production thinner thickness of fast speed, the such as manufacture of 15-150g/ ㎡ nonwoven fabric.
In addition, in field of papermaking, use the wet papermaking equipment using cylinder, tiltedly net or fourdrinier wire, in this wet papermaking equipment, cylinder, tiltedly net or fourdrinier wire are copied the fibre web got to turn and copy on felt, namely utilize cylinder etc. different from the surface roughness of felt, copy by aforementioned cylinder etc. the fibre web got and turn and copy on felt, and can fibre web be carried.Fiber web transfer repeatedly, cause production line long, the problem that production efficiency is low, meanwhile, on felt, easy residual slurry, makes nonwoven thickness uneven, affects its gas permeability and uniformity, even occur macroscopic aperture.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides one and may be used for 15-150g/ ㎡ wet nonwoven method manufacture method and manufacturing equipment, apparatus of the present invention do not re-use felt, also shorten whole production line simultaneously.
Technical scheme of the present invention is: a kind of wet nonwoven fabrics manufacture method, comprises the one-tenth net operation of slurry successively, aspirates operation and drying process; Described one-tenth net operation comprises slurry and is attached on cylinder mould roller and forms fibre web; The described operation that aspirates comprises the suction roller of mating with described cylinder mould roller and fibre web is aspirated polyester guipure to having enough to meet the need between multiple working roll and described suction roller.
Further improvement of the present invention comprises:
In order to increase production efficiency, described drying process comprises each drying of fibre web tow sides of successively twice once, particularly in some slightly thick nonwoven production, in order to product can be made to complete oven dry fast, two drying cylinders can be adopted to dry two faces of nonwoven fabric respectively.Meanwhile, when producing comparatively thin nonwoven fabric, because itself thinner thickness, moisture is less, and a drying cylinder just can make product bone dry.Preferably, in described baking operation, fibre web is not less than 1/2nd of drying cylinder girth through the distance of dryer surface.Be arranged on the working roll around drying cylinder, drying cylinder path increased, adds the utilization rate of the energy.
Another feature of the present invention is that the fibre web contacted with dryer surface in described drying process is in molten condition, and fibre web another side melting does not occur.But this molten condition refers to that chemical fibre is in and is about to melt the critical point of also not melting, and for different chemical fibres, those skilled in the art can be determined by experiment the temperature of drying cylinder, and then ensure this molten condition.Or, fiber is in just start the feature of the solid-liquid admixture of melting ensure that and effective interlacing between each fiber ensure that uniformity and the gas permeability of product.
In described drying process, surface temperature of drier is 100-130 DEG C.
Described a kind of wet nonwoven fabrics manufacture method, also comprise dehydration procedure, the polyester guipure namely between suction roller and drying cylinder arranges negative-pressure dewater unit, and this device can reduce the moisture in fibre web, increase the operating efficiency of follow-up baking operation, speed production efficiency.
Another object of the present invention is to the manufacturing equipment that a kind of wet nonwoven fabrics is provided, comprise the raw material tank of supply slurry, be arranged at the cylinder mould roller in raw material tank, the suction roller opposed with cylinder mould roller and the polyester guipure had enough to meet the need in suction roller, multiple working roll and drying cylinder, the wrap-up of rear nonwoven fabric is dried in rolling.Felt removes by this device, replacement felt is brought with polyester webs, simultaneously, only complete the shaping of fibre web by cylinder mould roller in raw material tank, avoid in prior art, working roll and the felt around it is set up in raw material tank, do not recycle roughness between felt to shift fibre web, but utilize suction roller, fibre web is aspirated on polyester guipure, not only reduces part of appliance, shorten the length of production line, and, when suction roller transfer fibre web, the negative pressure of suction roller can be utilized to carry out preliminary dehydration to fibre web.
As the preferred technical solution of the present invention, the polyester guipure between described suction roller and drying cylinder arranges negative-pressure dewater unit.
Described dryer surface is coated with polytetrafluorethylecoatings coatings.For the present invention, its feature is mainly for thinner nonwoven fabric, in baking operation, in order to make nonwoven fabric flash baking and interlacing fast, what the temperature of drying cylinder arranged is higher, to such an extent as to the fibre web in fibre web can be made to be in molten condition, but, the fibre web adhesion of common drying cylinder easily and under molten condition, affect product appearance and performance, in order to address this problem, applicant is through large quantifier elimination, by ensureing that drying cylinder can effectively be separated with fibre web at dryer surface coating Teflon and polytetrafluorethylecoatings coatings, the destruction to fibre web and finished product avoided.
Described drying cylinder inside adopts conduction oil heat conduction.Conduction oil specific heat capacity is lower, can regulate temperature fast, and then regulates dryer temperature, is convenient to control.
Accompanying drawing explanation
Fig. 1 is the structural representation of manufacturing equipment of the present invention.
In figure: 1, raw material tank, 2, cylinder mould roller, 3, suction roller, 4, polyester guipure, 5, working roll, 6, drying cylinder, 7, wind-up roll, 8, dewater unit.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is elaborated.
The harmless manufacturing installation of wet method as shown in Figure 1, comprises raw material tank 1, cylinder mould roller 2, suction roller 3, polyester guipure 4, working roll 5, drying cylinder 6, wind-up roll 7, and dewater unit 8 is formed.Wherein working roll comprises 5a, 5b, 5c etc.
Shown polyester guipure 4 has enough to meet the need and between working roll 5a, 5b, 5c and suction roller, its arbitrary one is set to live roll, polyester guipure 4 can be had enough to meet the need in the counterclockwise direction.This device by directly arranging cylinder mould roller 2 in raw material tank 1, instead of web-forming equipment complicated in prior art, shorten production technology and production line, after forming fibre web in cylinder mould roller 2, contact with polyester guipure 4 under the rotation of cylinder mould roller 2, in suction roller 3, subnormal ambient ensures that fibre web can be transferred on polyester guipure 4 smoothly, has given up the felt in legacy equipment, avoid the destruction of felt to fibre web in this process.Another benefit of cylinder mould roller 2 is, before being transferred to polyester guipure after fibre web becomes net to depart from slurry plane, the mesh of cylinder mould roller 2 can be utilized to carry out preliminary dehydration.The present invention uses the fibre web of 3-6 millimeter, completes Homogeneous phase mixing and become suspension in raw material tank 1, and namely cylinder mould roller 2 can realize the mutual interlacing of fibre web, does not need to arrange extra fibre web interlacing operation.
Meeting the requirements in order to ensure the nonwoven thickness produced, web caliper can be regulated by regulating slurry concentration and rotating speed.Thickness and the rotating speed of nonwoven fabric are inversely proportional to, and are directly proportional to slurry concentration.Those skilled in the art can determine the rotating speed that the nonwoven fabric of different-thickness is corresponding and slurry concentration through repeatedly test paper.Rotating speed and concentration can change along with the change of working condition and environment.
Be transferred to smoothly after on polyester guipure 4 at fibre web, under the turnover effect of polyester guipure, carry out negative pressure dehydration further through dewater unit 8, utilize air suction, the moisture in fibre web is extracted out.Described dewater unit 8 can arrange multiple according to actual product demand.Fibre web after dehydration enters drying cylinder 6 through working roll 5a and dries under the turnover of polyester guipure 4.
In order to ensure drying efficiency and the utilization rate to drying cylinder energy, the path that between working roll 5a and 5b, fibre web passes through is greater than 1/2nd of drying cylinder 6 girth.The temperature on drying cylinder 6 surface, ensure to be in molten condition with the fibre web of drying cylinder 6 surface contact in drying process, and there is not melting in fibre web another side at 100-110 DEG C according to the different set temperature of fibre web.But this molten condition refers to that chemical fibre is in and is about to melt the critical point of also not melting, and for different chemical fibres, those skilled in the art can be determined by experiment the temperature of drying cylinder 6, and then ensure this molten condition.Or, fiber is in just start the feature of the solid-liquid admixture of melting ensure that and more effective interlacing between each fiber ensure that uniformity and the gas permeability of product.Meanwhile, in order to avoid drying cylinder 6 pairs of fibre web adhesions, at drying cylinder 6 surface coating Teflon material layer, drying cylinder 6 inside uses the conduction oil transferring heat being convenient to control.
After baking operation completes, fibre web enters wind-up roll 7 rolling finished product after working roll 5b.Polyester guipure 4 has enough to meet the need back suction roller 3 through working roll 5c and completes turnover.The nonwoven fabric produced through the present invention can reach air permeability: front 936L/ (dm
2min) reverse side 948L/ (dm
2min); Mechanical strength: longitudinally, 2.6kN/m; Laterally, 1.9kN/m.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. a wet nonwoven fabrics manufacture method, is characterized in that, comprises the one-tenth net operation of slurry successively, aspirates operation and drying process; Described one-tenth net operation comprises slurry and is attached on cylinder mould roller and forms fibre web; The described operation that aspirates comprises the suction roller of mating with described cylinder mould roller and fibre web is aspirated polyester guipure to having enough to meet the need between multiple working roll and described suction roller.
2. a kind of wet nonwoven fabrics manufacture method according to claim 1, is characterized in that, described drying process comprises each drying of fibre web tow sides of successively twice once.
3. a kind of wet nonwoven fabrics manufacture method according to claim 1 and 2, it is characterized in that, the fibre web contacted with dryer surface in described drying process is in molten condition, and fibre web another side melting does not occur.
4. a kind of wet nonwoven fabrics manufacture method according to claim 1, is characterized in that, in described drying process, surface temperature of drier is 100-130 DEG C.
5. a kind of wet nonwoven fabrics manufacture method according to claim 1, is characterized in that, also comprise dehydration procedure, and the polyester guipure namely between suction roller and drying cylinder arranges negative-pressure dewater unit.
6. a kind of wet nonwoven fabrics manufacture method according to claim 1, is characterized in that, in described baking operation, fibre web is not less than 1/2nd of drying cylinder girth through the distance of dryer surface.
7. the manufacturing equipment of a wet nonwoven fabrics, it is characterized in that, comprise the raw material tank of supply slurry, be arranged at the cylinder mould roller in raw material tank, the suction roller opposed with cylinder mould roller and the polyester guipure had enough to meet the need in suction roller, multiple working roll and drying cylinder, the wrap-up of rear nonwoven fabric is dried in rolling.
8. the manufacturing equipment of a kind of wet nonwoven fabrics according to claim 7, is characterized in that, the polyester guipure between described suction roller and drying cylinder arranges negative-pressure dewater unit.
9. the manufacturing equipment of a kind of wet nonwoven fabrics according to claim 7, is characterized in that, described dryer surface is coated with polytetrafluorethylecoatings coatings.
10. the manufacturing equipment of a kind of wet nonwoven fabrics according to claim 7, is characterized in that, described drying cylinder inside adopts conduction oil heat conduction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510117847.2A CN104711891A (en) | 2015-03-14 | 2015-03-14 | Wet-process non-woven fabric manufacturing method and manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510117847.2A CN104711891A (en) | 2015-03-14 | 2015-03-14 | Wet-process non-woven fabric manufacturing method and manufacturing equipment |
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| Publication Number | Publication Date |
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| CN104711891A true CN104711891A (en) | 2015-06-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510117847.2A Pending CN104711891A (en) | 2015-03-14 | 2015-03-14 | Wet-process non-woven fabric manufacturing method and manufacturing equipment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835807A (en) * | 2017-01-23 | 2017-06-13 | 吴玉才 | Overlength filament and plant fasciculus production nature moulding non-woven fabrics non-woven paper device |
| CN107012722A (en) * | 2017-05-17 | 2017-08-04 | 吴玉才 | String, regenerated fiber, synthetic fibers wet processing production nonwoven cloth apparatus |
| CN107287969A (en) * | 2017-08-04 | 2017-10-24 | 吴玉才 | Straw discard flaxen fiber wet method make can the agricultural base material of natural degradation device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245228A (en) * | 1998-07-17 | 2000-02-23 | 尤妮佳股份有限公司 | Wet-method for producing non-woven cloth and producing device thereof |
| CN103409943A (en) * | 2013-08-14 | 2013-11-27 | 杭州诺邦无纺股份有限公司 | Printed non-woven fabric and processing method and device thereof |
| CN103590193A (en) * | 2013-11-11 | 2014-02-19 | 杭州创蓝无纺布有限公司 | Production device and technology for wet method spunlace nonwoven cloth |
-
2015
- 2015-03-14 CN CN201510117847.2A patent/CN104711891A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1245228A (en) * | 1998-07-17 | 2000-02-23 | 尤妮佳股份有限公司 | Wet-method for producing non-woven cloth and producing device thereof |
| CN103409943A (en) * | 2013-08-14 | 2013-11-27 | 杭州诺邦无纺股份有限公司 | Printed non-woven fabric and processing method and device thereof |
| CN103590193A (en) * | 2013-11-11 | 2014-02-19 | 杭州创蓝无纺布有限公司 | Production device and technology for wet method spunlace nonwoven cloth |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835807A (en) * | 2017-01-23 | 2017-06-13 | 吴玉才 | Overlength filament and plant fasciculus production nature moulding non-woven fabrics non-woven paper device |
| CN106835807B (en) * | 2017-01-23 | 2023-07-21 | 吴玉才 | Device for producing natural modeling non-woven fabric non-woven paper by using ultra-long fiber yarns and plant fiber bundles |
| CN107012722A (en) * | 2017-05-17 | 2017-08-04 | 吴玉才 | String, regenerated fiber, synthetic fibers wet processing production nonwoven cloth apparatus |
| CN107012722B (en) * | 2017-05-17 | 2023-06-23 | 吴玉才 | Non-woven fabric production device by plant fiber, regenerated fiber and synthetic fiber wet process |
| CN107287969A (en) * | 2017-08-04 | 2017-10-24 | 吴玉才 | Straw discard flaxen fiber wet method make can the agricultural base material of natural degradation device |
| CN107287969B (en) * | 2017-08-04 | 2023-07-21 | 吴玉才 | Device for manufacturing natural degradable agricultural base material by wet method from plant straw waste fibrilia |
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Application publication date: 20150617 |