CN103132241A - Super-soft SS (spunbond and spunbond) nonwoven fabric and production process thereof - Google Patents
Super-soft SS (spunbond and spunbond) nonwoven fabric and production process thereof Download PDFInfo
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- CN103132241A CN103132241A CN2013100736097A CN201310073609A CN103132241A CN 103132241 A CN103132241 A CN 103132241A CN 2013100736097 A CN2013100736097 A CN 2013100736097A CN 201310073609 A CN201310073609 A CN 201310073609A CN 103132241 A CN103132241 A CN 103132241A
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 238000009987 spinning Methods 0.000 claims abstract description 17
- 229920001971 elastomer Polymers 0.000 claims abstract description 14
- 239000000806 elastomer Substances 0.000 claims abstract description 14
- 238000005098 hot rolling Methods 0.000 claims abstract description 14
- 239000004743 Polypropylene Substances 0.000 claims abstract description 11
- -1 polypropylene Polymers 0.000 claims abstract description 11
- 229920001155 polypropylene Polymers 0.000 claims abstract description 11
- 239000004594 Masterbatch (MB) Substances 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 10
- 239000000155 melt Substances 0.000 claims abstract description 9
- 238000005516 engineering process Methods 0.000 claims description 16
- 239000000178 monomer Substances 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 230000008018 melting Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 2
- 238000009792 diffusion process Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 4
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000088 plastic resin Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses super-soft SS (spunbond and spunbond) nonwoven fabric. The super-soft SS nonwoven fabric is mainly made from, by weight, 55-90 parts of polypropylene, 5-40 parts of elastomer, 1-4 parts of softener and 0.5-1 part of cooling masterbatch. The invention further discloses a production process of the super-soft SS nonwoven fabric. The production process includes the steps of preparing raw materials and auxiliary materials according to the proportion, mixing well, melt-compressing by a screw extruder to obtain viscous flow melt, sending the melt into a melt filter for filtration, allowing the melt to enter a spinning die head, allowing trickle of the melt to be extruded out of spinneret orifices, allowing a drafting air channel to draft and shape the trickle of the melt under the action of process cooling air so as to obtain fiber of certain strength, allowing the fiber to be evenly adsorbed to a forming conveyor belt by a diffusion air channel to form a continuous mesh fiber layer, and rolling the fiber mesh into the nonwoven fabric of certain longitudinal and transverse tension by a hot rolling mill. The SS nonwoven fabric produced according to the formula by the process is smaller than 1.5g in softness, and is as soft and smooth as silk to touch and highly suitable for shell fabrics of baby diapers.
Description
Technical field
The present invention relates to a kind of SS nonwoven fabric, particularly relate to a kind of formula and production technology of SS nonwoven fabric.
Background technology
Use disposable fabric as a kind of, spun-bonded non-woven fabrics was applied on the fabric of baby paper diaper in recent years more and more widely.Along with the raising of living standards of the people, the consumer requires also more and more higher to the fabric of baby paper diaper.The spun-bonded non-woven fabrics that traditional handicraft is produced, pliability is poor, and feel is stiff, can't satisfy baby paper diaper softness, comfortable requirement.How to improve the pliability of spun-bonded non-woven fabrics, how the pliability of spun-bonded non-woven fabrics is brought up to soft degree as silk, become the technical barrier that the nonwoven fabric industry generally runs into.
Though that uses in the industry at present adds the pliability that gentle formula can improve product to a certain extent, but pliability is limited, in addition, take into account the intensity, pliability, smooth degree of product and the steady production problem that can't solve simultaneously in the industry especially in batches.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of super gentle SS nonwoven fabric that can improve pliability and smooth degree.
The object of the invention is to also provide a kind of production technology of super gentle SS nonwoven fabric, can improve pliability and the smooth degree of SS nonwoven fabric.
In order to reach above-mentioned purpose, solution of the present invention is:
A kind of super gentle SS nonwoven fabric is mainly made by polypropylene, elastomer, softener and cooling masterbatch that weight ratio is 55～90:5～40:1～4:0.5～1.
A kind of production technology of super gentle SS nonwoven fabric, realize by following steps:
1) by following weight ratio configuration supplementary material: the weight ratio of polypropylene, elastomer, softener and cooling masterbatch is 55～90:5～40:1～4:0.5～1;
2) above-mentioned supplementary material is stirred through agitator, supplementary material is mixed;
3) by the vacuum intake device, the supplementary material that mixes is transported to screw extruder continuously;
4) supplementary material is become later the melt of viscous state by described screw extruder melting compression, is transported to fondant filter through melt pipe and filters, and then enters spinning die head;
5) after described melt enters spinning die head, through the spinnerets spinneret orifice, be squeezed into the continuous melt thread corresponding with the spinneret orifice number;
6) after continuous described melt thread is extruded from spinneret orifice, under the cooling wind action of technique, through the drawing-off air channel, the cooling drafting forming of melt thread is formed fiber; Pass through again diffusor duct, fiber is adsorbed onto on Web forming conveyer belt uniformly, form continuous arlt's strata;
7) under the continuous conveying of Web forming conveyer belt, continuous fibre web is through hot-rolling mill;
8) under the rolloff effect of hot-rolling mill, fibre web forms super gentle nonwoven fabric.
The technological temperature of described screw extruder is set as respectively: the first temperature controller district is 180 ℃, and the second temperature controller district is 200 ℃, and the 3rd temperature controller district is 215 ℃, and the 4th temperature controller district is 230 ℃, and the 5th temperature controller district is 250 ℃, and the 6th temperature controller district is 250 ℃.
Described spinning die head is respectively distinguished temperature and is 250 ℃, and the monomer suction flow of spinning die head is at 4000m
3Below/h, technique cooling air flow is 24000m
3/ h.
Described spinnerets is the spinnerets with 6000-10000 spinneret orifice.
The gas permeation rate of described Web forming conveyer belt is 8000～12000cm
3/ m
2Datm.
The pressure of described hot-rolling mill is 5MPa～6.5MPa, and temperature is below 132 ℃.
After described melt is filtered, then the measuring fixed amount production control output of passing through measuring pump, described spinning die head then entered.
The heating-up temperature of described fondant filter and measuring pump is respectively 250 ℃, and it is 250 ℃ that described melt pipe is respectively distinguished temperature, and the order number of screen pack is 250 orders.
After adopting above-mentioned formula, super gentle SS nonwoven fabric of the present invention has following beneficial effect: the SS nonwoven fabric that uses formula of the present invention to produce, during with pliability tester test pliability, the used test counterweight can reach below 1.5g, soft smooth as feel such as silk, be fit to very much be used in the fabric of baby paper diaper, properer requirement that meets the tender skin of baby children.
After adopting above-mentioned steps, the production technology of super gentle SS nonwoven fabric of the present invention has following beneficial effect: in the formula of supplementary material, elastomer, softener and cooling masterbatch have had both elasticity, flexibility, adhesiveness, smoothness, drapability and the toughness of plastic resin as the type selecting of additive; Under the cooling wind action of technique, with the cooling drafting forming of melt thread, become the fiber with certain brute force through the drawing-off air channel; Under the rolloff effect of hot-rolling mill, fibre web becomes the nonwoven fabric that has necessarily in length and breadth to pulling force; When the hot rolling function guaranteed that the nonwoven fabric after hot rolling reaches maximum in length and breadth to brute force, it is best that soft feel reaches.In a word, this technique can stably produce pliability and can reach below 1.5g, the super gentle nonwoven fabric of soft smooth as feel such as silk.
The specific embodiment
In order further to explain technical scheme of the present invention, the present invention will be described in detail below by specific embodiment.
Super gentle SS nonwoven fabric of the present invention, its production technology is as follows:
1, raw material and each functional agglomerate are configured to supplementary material by following weight ratio:
Polypropylene: elastomer: softener: the weight ratio of cooling masterbatch: 55～90:5～40:1～4:0.5～1.
Wherein, polypropylene adopts the polypropylene of Mobil Exxon Corporation, and for example product type is polypropylene 3155(ExxonMobil polypropylene3155) polypropylene,
Sell network address:
Http:// www.eastsoo.com/buy/plastic-12249571.html, perhaps
Http:// www.51pla.com/html/sellinfo/377/3774009.htm
Elastomer adopts the elastomer of Mobil Exxon Corporation, and for example product type is elastomer 6202(ExxonMobil Chemical Vistamaxx6202), the sale network address is as follows:
http://www.yuancailiao.net/trade/offerdetail-549525.aspx。
Softener adopts Nanhai District Foshan City to hold the softener of glad plastic additive Co., Ltd, and for example product type is softener PP003,
Sell network address:
Http:// sslu19741212.fibreinfo.cn/, perhaps
http://www.fibreinfo.com/cp_view/74124.html。
Cooling masterbatch adopts the cooling masterbatch of Bazhou City non-sharp thinning work Co., Ltd, sells network address:
http://www.zfsj.cn/%BD%B5/%BD%B5%CE%C2%C4%B8%C1%A3/15185862.htm。
In the formula of supplementary material, raw material is polypropylene, and auxiliary material is elastomer, softener and cooling masterbatch, and auxiliary material has had both elasticity, flexibility, adhesiveness, smoothness, drapability and the toughness of plastic resin as its type selecting of additive.
2, above-mentioned supplementary material was stirred 3 minutes through agitator, supplementary material is mixed.
3, by the vacuum intake device, the supplementary material that mixes is transported to screw extruder continuously.The technological temperature of screw extruder is set as respectively: the first temperature controller district is 180 ℃, and the second temperature controller district is 200 ℃, and the 3rd temperature controller district is 215 ℃, and the 4th temperature controller district is 230 ℃, and the 5th temperature controller district is 250 ℃, and the 6th temperature controller district is 250 ℃.
Contain 15% inorganic matter (ethene C2H4) in composition due to elastomer (flexibilizer), the temperature of production technology is than low 10 ℃ of left and right of technological temperature of normal production common non-woven fabric.
4, supplementary material is become later the melt of viscous state by screw extruder melting compression, and be transported to fondant filter through melt pipe and filter, then the measuring fixed amount production control output of passing through measuring pump, preferably enter spinning die head.
Wherein, the heating-up temperature of fondant filter and measuring pump is 250 ℃; It is 250 ℃ that melt pipe is respectively distinguished temperature; The order number of screen pack is 250 orders, and every 12 use hour replacing once.It is 250 ℃ that spinning die head is respectively distinguished temperature.The monomer suction flow of spinning die head is about 4000m
3Below/h.Technique cooling air flow is: 24000m
3/ h.
5, under the common squeezing action of screw extruder and measuring pump, after melt enters spinning die head, through the spinnerets spinneret orifice, be squeezed into the continuous melt thread corresponding with the spinneret orifice number.Every block of spinnerets is 6000-10000 spinneret orifice approximately.
6, after continuous melt thread is extruded from spinneret orifice, under the cooling wind action of technique, with the cooling drafting forming of melt thread, become the fiber with certain brute force through the drawing-off air channel; Pass through again diffusor duct, fiber is adsorbed onto on net conveyor uniformly, form continuous arlt's strata.
7, under the Web forming conveyer belt continuous conveying of (be called into net conveyor or claim into lace curtaining), continuous fibre web is through hot-rolling mill.The gas permeation rate of Web forming conveyer belt is 8000～12000cm
3/ m
2Datm has to guarantee the fibrage after the sub-wire lapping the even spot that is of moderate size, the pliability of the nonwoven fabric after the increase moulding.Wherein, gas permeation rate is at a certain temperature, within the unit interval unit pressure poor under, the stable gas volume that sees through the unit are sample; Unit is: cm
3/ m
3Datm.
8, under the rolloff effect of hot-rolling mill, fibre web becomes the nonwoven fabric that has necessarily in length and breadth to pulling force.Wherein, the pressure of hot-rolling mill is 5MPa～6.5MPa, and temperature is below 132 ℃, and when reaching maximum in length and breadth to brute force with the nonwoven fabric after the assurance hot rolling, it is best that soft feel reaches.
9, finally by crossing the winder rolling, cutting machine is cut, and namely becomes the super gentle nonwoven fabric of coiled material.
Wherein, spinnerets is installed in the bottom of spinning die head, the both sides installation side blow box of spinnerets, thus surround manifold.The pressure of side-blown bellows needs greater than 2KPa, with the fibre fineness after the drawing-off that guarantees to be cooled below 1.6dex.Through the side-blown bellows, can form fiber vertically downward.
Monomer suction is arranged on the side-blown bellows near the spinning die head place.So-called monomer refers to become after supplementary material is by screw extruder melting compression the melt of viscous state, and melt decomposites the little molecule thing of some smoke-likes, and this little molecule thing namely is referred to as monomer.
Monomer suction must be enough large, and purpose is that the distance of mixture melt thread crystalline temperature when the drawing-off cooling and shaping is upwards carried, and guarantees that mixture melt thread is not easy to be broken in by drawing-down, to guarantee steady production.Simultaneously, monomer suction can also promote cold airflow to flow, and is conducive to cooling and shaping.
The cooling air of side-blown bellows convection current must convectional stability and enough even.Mixed melt is because be added with elastomer 6202(Chemical Vistamaxx6202), elastomer has resilience and viscosity, cooling drawing-off wind as convection current is inhomogeneous, and the mixture melt thread of shake is easy to be sticked together and forms doubling, thereby affects product quality.
Above-described embodiment and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field all should be considered as not breaking away from patent category of the present invention to its suitable variation or modification of doing.
Claims (9)
1. a super gentle SS nonwoven fabric, is characterized in that, the polypropylene, elastomer, softener and the cooling masterbatch that are mainly 55～90:5～40:1～4:0.5～1 by weight ratio are made.
2. the production technology of a super gentle SS nonwoven fabric, is characterized in that, realizes by following steps:
1) by following weight ratio configuration supplementary material: the weight ratio of polypropylene, elastomer, softener and cooling masterbatch is 55～90:5～40:1～4:0.5～1;
2) above-mentioned supplementary material is stirred through agitator, supplementary material is mixed;
3) by the vacuum intake device, the supplementary material that mixes is transported to screw extruder continuously;
4) supplementary material is become later the melt of viscous state by described screw extruder melting compression, is transported to fondant filter through melt pipe and filters, and then enters spinning die head;
5) after described melt enters spinning die head, through the spinnerets spinneret orifice, be squeezed into the continuous melt thread corresponding with the spinneret orifice number;
6) after continuous described melt thread is extruded from spinneret orifice, under the cooling wind action of technique, through the drawing-off air channel, the cooling drafting forming of melt thread is formed fiber; Pass through again diffusor duct, fiber is adsorbed onto on Web forming conveyer belt uniformly, form continuous arlt's strata;
7) under the continuous conveying of Web forming conveyer belt, continuous fibre web is through hot-rolling mill;
8) under the rolloff effect of hot-rolling mill, fibre web forms super gentle nonwoven fabric.
3. the production technology of super gentle SS nonwoven fabric as claimed in claim 2, it is characterized in that, the technological temperature of described screw extruder is set as respectively: the first temperature controller district is 180 ℃, the second temperature controller district is 200 ℃, the 3rd temperature controller district is 215 ℃, the 4th temperature controller district is 230 ℃, and the 5th temperature controller district is 250 ℃, and the 6th temperature controller district is 250 ℃.
4. the production technology of super gentle SS nonwoven fabric as claimed in claim 2, is characterized in that, described spinning die head is respectively distinguished temperature and is 250 ℃, and the monomer suction flow of spinning die head is at 4000m
3Below/h, technique cooling air flow is 24000m
3/ h.
5. the production technology of super gentle SS nonwoven fabric as claimed in claim 2, is characterized in that, described spinnerets is the spinnerets with 6000-10000 spinneret orifice.
6. the production technology of super gentle SS nonwoven fabric as claimed in claim 2, is characterized in that, the gas permeation rate of described Web forming conveyer belt is 8000～12000cm
3/ m
2Datm.
7. the production technology of super gentle SS nonwoven fabric as claimed in claim 2, is characterized in that, the pressure of described hot-rolling mill is 5MPa～6.5MPa, and temperature is below 132 ℃.
8. the production technology of super gentle SS nonwoven fabric as claimed in claim 2, is characterized in that, after described melt is filtered, then the measuring fixed amount production control output of passing through measuring pump, then enter described spinning die head.
9. the production technology of super gentle SS nonwoven fabric as claimed in claim 2, is characterized in that, the heating-up temperature of described fondant filter and measuring pump is respectively 250 ℃, and it is 250 ℃ that described melt pipe is respectively distinguished temperature, and the order number of screen pack is 250 orders.
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|---|---|---|---|
| CN201310073609.7A CN103132241B (en) | 2013-03-08 | 2013-03-08 | Super soft SS producing technology of non-woven fabrics |
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|---|---|---|---|
| CN201310073609.7A CN103132241B (en) | 2013-03-08 | 2013-03-08 | Super soft SS producing technology of non-woven fabrics |
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| CN103132241A true CN103132241A (en) | 2013-06-05 |
| CN103132241B CN103132241B (en) | 2017-05-31 |
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| CN103696138A (en) * | 2013-11-26 | 2014-04-02 | 芜湖跃飞新型吸音材料股份有限公司 | Insulated non-woven fabric sound-absorbing cotton and preparation method thereof |
| CN104963099A (en) * | 2015-06-06 | 2015-10-07 | 浙江金三发非织造布有限公司 | Production technology for milky white hydrophilic skin-caring surface layer non-woven fabric |
| CN105568560A (en) * | 2014-10-08 | 2016-05-11 | 张家港骏马无纺布有限公司 | Fluffy melt-blow cloth preparation method |
| CN105568548A (en) * | 2014-10-08 | 2016-05-11 | 张家港骏马无纺布有限公司 | Cottonlike non-woven fabric preparation method |
| CN105696200A (en) * | 2016-03-03 | 2016-06-22 | 张家港高品诚医械科技有限公司 | Batch-type non-woven fabric melt-blowing method and non-woven fabric |
| CN105734834A (en) * | 2016-03-03 | 2016-07-06 | 张家港高品诚医械科技有限公司 | Continuous non-woven fabric melt-blowing method and non-woven fabric |
| CN106637681A (en) * | 2015-11-04 | 2017-05-10 | 张家港骏马无纺布有限公司 | Elastic nonwoven and preparing method thereof |
| CN107460640A (en) * | 2017-08-04 | 2017-12-12 | 山东荣泰新材料科技有限公司 | Non-woven fabrics and its preparation method and application |
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| CN105568560A (en) * | 2014-10-08 | 2016-05-11 | 张家港骏马无纺布有限公司 | Fluffy melt-blow cloth preparation method |
| CN105568548A (en) * | 2014-10-08 | 2016-05-11 | 张家港骏马无纺布有限公司 | Cottonlike non-woven fabric preparation method |
| CN104963099A (en) * | 2015-06-06 | 2015-10-07 | 浙江金三发非织造布有限公司 | Production technology for milky white hydrophilic skin-caring surface layer non-woven fabric |
| CN106637681A (en) * | 2015-11-04 | 2017-05-10 | 张家港骏马无纺布有限公司 | Elastic nonwoven and preparing method thereof |
| CN105696200A (en) * | 2016-03-03 | 2016-06-22 | 张家港高品诚医械科技有限公司 | Batch-type non-woven fabric melt-blowing method and non-woven fabric |
| CN105734834A (en) * | 2016-03-03 | 2016-07-06 | 张家港高品诚医械科技有限公司 | Continuous non-woven fabric melt-blowing method and non-woven fabric |
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| CN107460640B (en) * | 2017-08-04 | 2020-02-18 | 山东恒鹏卫生用品有限公司 | Non-woven fabric and preparation method and application thereof |
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