CN109371570A - A kind of smooth roll hot rolling elastic non-woven and its manufacturing method - Google Patents
A kind of smooth roll hot rolling elastic non-woven and its manufacturing method Download PDFInfo
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- CN109371570A CN109371570A CN201811230804.5A CN201811230804A CN109371570A CN 109371570 A CN109371570 A CN 109371570A CN 201811230804 A CN201811230804 A CN 201811230804A CN 109371570 A CN109371570 A CN 109371570A
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- 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
- D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
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- 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
- D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4282—Addition polymers
- D04H1/4291—Olefin series
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- 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
- D04H1/42—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 characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
- D06C15/08—Rollers therefor
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
- D06C27/00—Compound processes or apparatus, for finishing or dressing textile fabrics, not otherwise provided for
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- Textile Engineering (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The present invention relates to a kind of smooth roll hot rolling elastic non-woven, raw material is made of elastomer, PP spunbond raw material according to the ratio mixing of 90%-97%:3%-10%.The elastomer selects Weida's beauty 6202FL or Weida beauty 7050FL, any one in the described selection of PP spunbond raw material PP3155E3, PP3155E5, H39S-2.Also disclose the manufacturing method of smooth roll hot rolling elastic non-woven.The present invention will play the hot rolling of non-woven cloth side by the way of smooth roll hot rolling entirely, make it without rolling a little, enhance the performances such as its strength, meanwhile, it ensure that its elastic property, applicable surface are more extensive.
Description
Technical field
The invention belongs to spun-bonded non-woven fabrics technical fields, and in particular to a kind of smooth roll hot rolling elastic non-woven and its manufacture
Method.
Background technique
In the prior art, elastic non-woven is used based on synthetic fibers or is all manufactured using synthetic fibers.Bullet
The production of property non-woven cloth can be summarized as the following two kinds approach.Approach one, by synthetic fibers non-woven cloth or synthetic fibers fiber
Beam etc. and elastic membrane or elastic network(s) etc. are combined with each other, to obtain the non-woven cloth with certain elasticity；Approach two, will be single
One component or the spandex of multiple groups part are pierced through shredding, mixing, combing, lapping, spun lacing or needle to tangle, or thermally treated again
Deng elastic non-woven is made.Above two elastic non-woven, although elastic property is preferable, strength is insufficient, easily breaks,
Application surface is restricted.
Summary of the invention
In order to solve above-mentioned technical problem of the existing technology, the present invention provides a kind of smooth roll hot rolling elastic non-woven
And its manufacturing method.
The present invention is achieved through the following technical solutions, and one aspect of the present invention provides a kind of smooth roll hot rolling elastic non-woven
Cloth, raw material are made of elastomer, PP spunbond raw material according to the ratio mixing of 90%-97%:3%-10%.
Select elastomer in 90%-97%, high resiliency body ratio guarantees the elastic property of product, meanwhile, the ratio product
When through overheat smooth roll, it is easy melting film-like, 3%-10%PP spunbond raw material is furthermore added, is easy to filature fleece formation.
Preferably, the elastomer selects Weida's beauty 6202FL or Weida beauty 7050FL, the PP spunbond raw material choosing
PP3155E3, PP3155E5 are selected, any one in H39S-2.
Elastomer is Exxon Mobil Corporation's product, model Weida beauty 6202FL or Weida beauty 7050FL；PP spunbond
Raw material selects the PP3155E3 or PP3155E5 of Exxon Mobil Corporation, any one in middle petroleum H39S-2.
A kind of manufacturing method of smooth roll hot rolling elastic non-woven, comprising the following steps:
1) elastomer, PP spunbond raw material are uniformly mixed according to the proportion of 90-97%:3-10%；
2) raw material being mixed is vacuum-drawn against screw rod by feed system and carries out extrusion molten, heated
Body；
3) hot melt is filtered, measured and distributed；
4) the good hot melt of distribution and computation is subjected to spinning, and by spun silk through side cold front heavy rain, obtains just growing filament；
5) first growing filament is subjected to drawing-off, obtains fiber；
6) by fiber sub-wire lapping, fibre web is formed；
7) by after fibre web hot rolling, non-woven cloth is obtained；
8) the baking oven cooling down for being 30 to 40 DEG C by temperature by non-woven cloth；
9) non-woven cloth is passed through into smooth roll hot rolling treatment, rear to cool down by baking oven, winding again.
1, product is three layers of fibre web, and by being rolled into layer of non-woven fabric material, hot rolling mill, which has, to be rolled a little, guarantees hot rolling effect
Fruit；2, after non-woven fabrics hot-roll forming, again by the hot smooth roll of single side, one side is made to be melt into similar membrane structure, smooth nothing
It rolls a little, its strength property can be enhanced.
The present invention will play non-woven cloth entirely, and side rolls its smooth nothing a little by smooth roll hot rolling (other side, which retains, rolls a little)
(be similar to elastic membrane+non-woven fabric compounded), enhances the performances such as its strength.
Preferably, in step 2), 180 DEG C~270 DEG C of screw rod melting temperature.Within the scope of this, raw material melts better effect,
Lower than this temperature, it may cause raw material melting and be not thorough, be higher than this temperature, may result in raw material denaturation, two kinds of situations
Cause spinning abnormal.
Preferably, the operation temperature that hot melt is filtered, measures and distributes is 230~250 DEG C, pressure in step 3)
Power is in 5~10MPa.
Preferably, the good hot melt spinning of distribution and computation is passed through by spraying silk in the aperture 0.3~0.8mm in step 4)
Supercooling bellows are cooling, and 10~20 DEG C of cool wind box temperature, cooling 0.2~1.5m/s of wind velocity.The setting of this range, is for
Guarantee spinning and into the net normal, it is higher or relatively low, it can all lead to the results such as cloth cover is uneven, networking is abnormal.
Preferably, in step 5), mode of the first growing filament Jing Guo air-flow sub-wire passes through the loudspeaker of slit extension apparatus
Mouthful, first growing filament is subjected to air drawing, air drawing speed is 2000m/H--5000m/H.It is fine to obtain 1.8~2.2 Denier
The fiber of degree generates strength by the first growing filament strand marshalling of drawing-off, forms fiber.It is selected above or is lower than
The air drawing speed of this range of 2000m/H--5000m/H will lead to the results such as cloth cover is uneven.
Preferably, in step 6), for normal networking, it is taped against into fiber is mixed and disorderly on lace curtaining, at having pumping under lace curtaining
Blower carries out downward suction air, fiber is fixed on lace curtaining, carries out precompressed by pony press, forms fibre web.
Preferably, in step 7), in order to which product is rolled into one layer, by fibre web by lace curtaining, in the band of lace curtaining roller
Under dynamic, it is transferred to hot-rolling mill, obtains non-woven cloth, hot-rolling mill after the effect of the heat pressure adhesive of hot-rolling mill topping roll and bottom roll
80~120 DEG C of temperature, 30~70MPa of line pressure；Non-woven cloth is transferred to final finishing system by upper winding roller and lower winding roller
System.
The temperature and pressure hot rolling effect are best, will lead to three layers of fibre web hot rolling less than one piece lower than this temperature or pressure,
Loosely, it fluffs, the indices such as wearability are poor；If temperature is excessively high or hypertonia, it will lead to non-woven fabrics and roll, roll rotten, cloth
Face is hardened, crisp, and strength is low.
Preferably, smooth roll hot rolling treatment is using smooth roll without rolling a little, and the temperature remains within the normal range for upper roller in step 9), only lower roll is heated
To 80-100 DEG C.Aforesaid operations guarantee that the product elastomer ratio is very high, and elastic property is good, using side smooth roll hot rolling, makes it
It is melt into similar membrane structure on one side, pressing cloth cover can effectively improve product strength, while can guarantee elastic property again.This
Advantageous effect of the invention are as follows:
The present invention will play the hot rolling of non-woven cloth side by the way of smooth roll hot rolling entirely, make it without rolling a little, enhance its strength
Etc. performances, meanwhile, ensure that its elastic property, applicable surface are more extensive.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Application principle of the invention is further described combined with specific embodiments below.
Embodiment 1, elastomer 6202, PP spunbond raw material are mixed according to 97%:3% ratio
1, elastomer 6202:PP spunbond raw material is uniformly mixed according to the ratio of 97%:3%；
2, the raw material being mixed is subjected to extrusion molten by feed system (vacuum suction) to screw rod, obtained
Hot melt (270 DEG C of screw rod melting temperature)；
3, the hot melt is filtered, measured and distributed under certain temperature, certain pressure (hot melt into
The operation temperature of row filtering, metering and distribution is 250 DEG C, and pressure is in 10MPa)；
4, the good hot melt of the distribution and computation is subjected to spinning, and spun silk is come into being through side cold front heavy rain
The good hot melt spinning of distribution and computation (is, the cooling wind cooling by cool wind box by spraying silk in the aperture 0.8mm by long filament
20 DEG C of box temperature degree, cooling wind velocity 1.5m/s, by the first growing filament of the cooling acquisition of silk)；
5, will it is described just growing filament carry out drawing-off, obtain fiber (mode by the first growing filament Jing Guo air-flow sub-wire,
By the horn mouth of slit extension apparatus, first growing filament is subjected to air drawing, air drawing speed is 5000m/H；
6, it by the fiber sub-wire lapping, forms fibre web and (is taped against into the fiber is mixed and disorderly on lace curtaining, at having pumping under lace curtaining
Blower carries out downward suction air, fiber is fixed on lace curtaining, carries out precompressed by pony press, forms fibre web)；
7, non-woven cloth will be obtained (by the fibre web by lace curtaining, in the drive of lace curtaining roller after fibre web hot rolling
Under, it is transferred to hot-rolling mill, obtains non-woven cloth, hot-rolling mill temperature after the effect of the heat pressure adhesive of hot-rolling mill topping roll and bottom roll
120 DEG C, line pressure 70MPa of degree, which is transferred to final finishing system by upper winding roller and lower winding roller)；
8, the baking oven cooling down for being 40 DEG C by temperature by non-woven cloth；
9, by the non-woven cloth, by smooth roll hot rolling treatment, (for smooth roll without rolling a little, the temperature remains within the normal range for upper roller, and only lower roll heats again after
To 100 DEG C), rear to be cooled down by baking oven, winding.
It takes 45g to carry out multiple quantitative measurement obtained product of the invention, repeatedly tests, data are more steady
It is fixed；Test result see the table below 1.
The test data of 1 45g elastical cloth of table:
| Performance | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | It is average |
| CD strength | 3.5 | 3.4 | 3.4 | 3.5 | 3.6 | 3.8 | 3.5 | 3.2 | 3.5 |
| CD elongation | 460 | 455 | 460 | 445 | 465 | 455 | 440 | 470 | 456.3 |
| MD strength | 5.0 | 5.1 | 5.0 | 4.8 | 5.2 | 4.7 | 5.0 | 5.3 | 5.0 |
| MD elongation | 400 | 395 | 385 | 395 | 415 | 410 | 420 | 405 | 403.1 |
Data after hot rolling
| Performance | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | It is average |
| CD strength | 5.0 | 5.2 | 5.1 | 5.3 | 5.0 | 5.8 | 5.4 | 4.9 | 5.2 |
| CD elongation | 430 | 420 | 425 | 430 | 420 | 415 | 405 | 410 | 419.4 |
| MD strength | 12.0 | 13.0 | 12.7 | 12.5 | 12.6 | 11.9 | 12.4 | 12.5 | 12.5 |
| MD elongation | 500 | 505 | 520 | 515 | 530 | 510 | 505 | 525 | 513.8 |
Embodiment 2, elastomer 7050:PP spunbond raw material are mixed according to 90%:10% ratio
1, elastomer 7050:PP spunbond raw material is uniformly mixed according to the ratio of 90%:10%；
2, the raw material being mixed is subjected to extrusion molten by feed system (vacuum suction) to screw rod, obtained
Hot melt (180 DEG C of screw rod melting temperature)；
3, the hot melt is filtered, measured and distributed the (hot melt stated under certain temperature, certain pressure
The operation temperature for being filtered, measuring and distributing is 230 DEG C, and pressure is in 5MPa)；
4, the good hot melt of the distribution and computation is subjected to spinning, and spun silk is come into being through side cold front heavy rain
The good hot melt spinning of distribution and computation (is, the cooling wind cooling by cool wind box by spraying silk in the aperture 0.3mm by long filament
10 DEG C of box temperature degree, cooling wind velocity 0.2m/s, by the first growing filament of the cooling acquisition of silk)；
5, will it is described just growing filament carry out drawing-off, obtain fiber (mode by the first growing filament Jing Guo air-flow sub-wire,
By the horn mouth of slit extension apparatus, first growing filament is subjected to air drawing, air drawing speed is 2000m/H；
6, it by the fiber sub-wire lapping, forms fibre web and (is taped against into the fiber is mixed and disorderly on lace curtaining, at having pumping under lace curtaining
Blower carries out downward suction air, fiber is fixed on lace curtaining, carries out precompressed by pony press, forms fibre web)；
7, non-woven cloth will be obtained (by the fibre web by lace curtaining, in the drive of lace curtaining roller after fibre web hot rolling
Under, it is transferred to hot-rolling mill, obtains non-woven cloth, hot-rolling mill temperature after the effect of the heat pressure adhesive of hot-rolling mill topping roll and bottom roll
80 DEG C, line pressure 30MPa of degree, which is transferred to final finishing system by upper winding roller and lower winding roller)；
8, the baking oven cooling down for being 30 DEG C by temperature by non-woven cloth；
9, by the non-woven cloth, by smooth roll hot rolling treatment, (for smooth roll without rolling a little, the temperature remains within the normal range for upper roller, and only lower roll heats again after
To 8 DEG C), rear to be cooled down by baking oven, winding.
It takes 45g to carry out multiple quantitative measurement obtained product of the invention, repeatedly tests, data are more steady
It is fixed；Test result see the table below 2.
The test data of 1 45g elastical cloth of table:
| Performance | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | It is average |
| CD strength | 3.7 | 3.6 | 3.5 | 3.7 | 3.9 | 3.8 | 3.7 | 3.3 | 3.7 |
| CD elongation | 455 | 450 | 470 | 455 | 405 | 405 | 410 | 440 | 436.3 |
| MD strength | 5.3 | 5.1 | 4.8 | 5.7 | 5.3 | 4.9 | 5.2 | 5.1 | 5.2 |
| MD elongation | 395 | 375 | 385 | 380 | 395 | 405 | 410 | 395 | 392.5 |
Data after hot rolling
Embodiment 3, elastomer 6202, PP spunbond raw material are mixed according to 95%:5% ratio
1, elastomer 6202, PP spunbond raw material are uniformly mixed according to the ratio of 95%:5%；
2, the raw material being mixed is subjected to extrusion molten by feed system (vacuum suction) to screw rod, obtained
Hot melt (200 DEG C of screw rod melting temperature)；
3, the hot melt is filtered, measured and distributed the (hot melt stated under certain temperature, certain pressure
The operation temperature for being filtered, measuring and distributing is 240 DEG C, and pressure is in 8MPa)；
4, the good hot melt of the distribution and computation is subjected to spinning, and spun silk is come into being through side cold front heavy rain
The good hot melt spinning of distribution and computation (is, the cooling wind cooling by cool wind box by spraying silk in the aperture 0.5mm by long filament
15 DEG C of box temperature degree, cooling wind velocity 1m/s, by the first growing filament of the cooling acquisition of silk)；
5, will it is described just growing filament carry out drawing-off, obtain fiber (mode by the first growing filament Jing Guo air-flow sub-wire,
By the horn mouth of slit extension apparatus, first growing filament is subjected to air drawing, air drawing speed is 35000m/H；
6, it by the fiber sub-wire lapping, forms fibre web and (is taped against into the fiber is mixed and disorderly on lace curtaining, at having pumping under lace curtaining
Blower carries out downward suction air, fiber is fixed on lace curtaining, carries out precompressed by pony press, forms fibre web)；
7, non-woven cloth will be obtained (by the fibre web by lace curtaining, in the drive of lace curtaining roller after fibre web hot rolling
Under, it is transferred to hot-rolling mill, obtains non-woven cloth, hot-rolling mill temperature after the effect of the heat pressure adhesive of hot-rolling mill topping roll and bottom roll
100 DEG C, line pressure 50MPa of degree, which is transferred to final finishing system by upper winding roller and lower winding roller)；
8, the baking oven cooling down for being 35 DEG C by temperature by non-woven cloth；
9, by the non-woven cloth, by smooth roll hot rolling treatment, (for smooth roll without rolling a little, the temperature remains within the normal range for upper roller, and only lower roll heats again after
To 90 DEG C), rear to be cooled down by baking oven, winding.
It takes 45g to carry out multiple quantitative measurement obtained product of the invention, repeatedly tests, data are more steady
It is fixed；Test result see the table below 3.
The test data of 1 45g elastical cloth of table:
| Performance | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | It is average |
| CD strength | 3.6 | 3.5 | 3.4 | 3.7 | 3.6 | 3.8 | 3.7 | 3.4 | 3.6 |
| CD elongation | 450 | 455 | 450 | 425 | 455 | 405 | 450 | 460 | 443.8 |
| MD strength | 5.2 | 5.1 | 5.3 | 4.7 | 5.1 | 4.8 | 5.4 | 5.1 | 5.4 |
| MD elongation | 405 | 395 | 375 | 390 | 405 | 400 | 410 | 385 | 395.6 |
Data after hot rolling
| Performance | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | It is average |
| CD strength | 5.1 | 5.1 | 5.3 | 5.2 | 5.0 | 5.4 | 5.4 | 5.0 | 5.2 |
| CD elongation | 420 | 400 | 425 | 430 | 420 | 415 | 405 | 410 | 415.6 |
| MD strength | 12.0 | 12.7 | 12.6 | 12.5 | 12.6 | 12.9 | 11.4 | 10.5 | 12.2 |
| MD elongation | 500 | 505 | 500 | 505 | 500 | 510 | 490 | 505 | 501.9 |
Comparative example 1:100% elastomer；(100% elastomer spinning is abnormal, adhesion lace curtaining, can not networking)
1, the raw material that 100% elastomer is stirred carries out extrusion molten by feed system (vacuum suction) to screw rod,
It obtains hot melt (270 DEG C of screw rod melting temperature)；
2, the hot melt is filtered, measured and distributed the (hot melt stated under certain temperature, certain pressure
The operation temperature for being filtered, measuring and distributing is 250 DEG C, and pressure is in 10MPa)；
3, the good hot melt of the distribution and computation is subjected to spinning, and spun silk is come into being through side cold front heavy rain
The good hot melt spinning of distribution and computation (is, the cooling wind cooling by cool wind box by spraying silk in the aperture 0.8mm by long filament
20 DEG C of box temperature degree, cooling wind velocity 1.5m/s, by the first growing filament of the cooling acquisition of silk)；
4, will it is described just growing filament carry out drawing-off, obtain fiber (mode by the first growing filament Jing Guo air-flow sub-wire,
By the horn mouth of slit extension apparatus, first growing filament is subjected to air drawing, air drawing speed is 5000m/H；
5, it by the fiber sub-wire lapping, forms fibre web and (is taped against into the fiber is mixed and disorderly on lace curtaining, at having pumping under lace curtaining
Blower carries out downward suction air, fiber is fixed on lace curtaining, carries out precompressed by pony press, forms fibre web)；
6, non-woven cloth will be obtained (by the fibre web by lace curtaining, in the drive of lace curtaining roller after fibre web hot rolling
Under, it is transferred to hot-rolling mill, obtains non-woven cloth, hot-rolling mill temperature after the effect of the heat pressure adhesive of hot-rolling mill topping roll and bottom roll
120 DEG C, line pressure 70MPa of degree, which is transferred to final finishing system by upper winding roller and lower winding roller).
7, the baking oven cooling down for being 40 DEG C by temperature by non-woven cloth；
8, by the non-woven cloth, by smooth roll hot rolling treatment, (for smooth roll without rolling a little, the temperature remains within the normal range for upper roller, and only lower roll heats again after
To 100 DEG C), rear to be cooled down by baking oven, winding.
The pp spunbond raw material of comparative example 2:97% elastomer+3%；
1, elastomer 6202:PP spunbond raw material is uniformly mixed according to the ratio of 97%:3%；；
2, the raw material being mixed is subjected to extrusion molten by feed system (vacuum suction) to screw rod, obtained
Hot melt (270 DEG C of screw rod melting temperature)；
3, the hot melt is filtered, measured and distributed the (hot melt stated under certain temperature, certain pressure
The operation temperature for being filtered, measuring and distributing is 250 DEG C, and pressure is in 10MPa)；
4, the good hot melt of the distribution and computation is subjected to spinning, and spun silk is come into being through side cold front heavy rain
The good hot melt spinning of distribution and computation (is, the cooling wind cooling by cool wind box by spraying silk in the aperture 0.8mm by long filament
20 DEG C of box temperature degree, cooling wind velocity 1.5m/s, by the first growing filament of the cooling acquisition of silk)；
5, will it is described just growing filament carry out drawing-off, obtain fiber (mode by the first growing filament Jing Guo air-flow sub-wire,
By the horn mouth of slit extension apparatus, first growing filament is subjected to air drawing, air drawing speed is 5000m/H；
6, it by the fiber sub-wire lapping, forms fibre web and (is taped against into the fiber is mixed and disorderly on lace curtaining, at having pumping under lace curtaining
Blower carries out downward suction air, fiber is fixed on lace curtaining, carries out precompressed by pony press, forms fibre web)；
7, non-woven cloth will be obtained (by the fibre web by lace curtaining, in the drive of lace curtaining roller after fibre web hot rolling
Under, it is transferred to hot-rolling mill, obtains non-woven cloth, hot-rolling mill temperature after the effect of the heat pressure adhesive of hot-rolling mill topping roll and bottom roll
120 DEG C, line pressure 70MPa of degree, which is transferred to final finishing system by upper winding roller and lower winding roller).
Comparative example 3:50% elastomer+50%pp spunbond raw material；
1, elastomer 6202:PP spunbond raw material is uniformly mixed according to the ratio of 50%:50%；
2, the raw material being mixed is subjected to extrusion molten by feed system (vacuum suction) to screw rod, obtained
Hot melt (270 DEG C of screw rod melting temperature)；
3, the hot melt is filtered, measured and distributed under certain temperature, certain pressure (hot melt into
The operation temperature of row filtering, metering and distribution is 250 DEG C, and pressure is in 10MPa)；
4, the good hot melt of the distribution and computation is subjected to spinning, and spun silk is come into being through side cold front heavy rain
The good hot melt spinning of distribution and computation (is, the cooling wind cooling by cool wind box by spraying silk in the aperture 0.8mm by long filament
20 DEG C of box temperature degree, cooling wind velocity 1.5m/s, by the first growing filament of the cooling acquisition of silk)；
5, will it is described just growing filament carry out drawing-off, obtain fiber (mode by the first growing filament Jing Guo air-flow sub-wire,
By the horn mouth of slit extension apparatus, first growing filament is subjected to air drawing, air drawing speed is 5000m/H；
6, it by the fiber sub-wire lapping, forms fibre web and (is taped against into the fiber is mixed and disorderly on lace curtaining, at having pumping under lace curtaining
Blower carries out downward suction air, fiber is fixed on lace curtaining, carries out precompressed by pony press, forms fibre web)；
7, non-woven cloth will be obtained (by the fibre web by lace curtaining, in the drive of lace curtaining roller after fibre web hot rolling
Under, it is transferred to hot-rolling mill, obtains non-woven cloth, hot-rolling mill temperature after the effect of the heat pressure adhesive of hot-rolling mill topping roll and bottom roll
120 DEG C, line pressure 70MPa of degree, which is transferred to final finishing system by upper winding roller and lower winding roller)；
8, the baking oven cooling down for being 40 DEG C by temperature by non-woven cloth；
9, by the non-woven cloth, by smooth roll hot rolling treatment, (for smooth roll without rolling a little, the temperature remains within the normal range for upper roller, and only lower roll heats again after
To 100 DEG C), rear to be cooled down by baking oven, winding.
The test data of 1 45g elastical cloth of table:
Before hot rolling
| Performance | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | It is average |
| CD strength | 37.6 | 37.8 | 37.1 | 38.0 | 38.0 | 32.3 | 34.1 | 34.4 | 36.2 |
| CD elongation | 134.0 | 159.0 | 146.0 | 146.0 | 143.0 | 149.0 | 142.0 | 148.0 | 145.5 |
| MD strength | 56.5 | 62.5 | 63.5 | 67.5 | 62.5 | 67.8 | 64.1 | 62.5 | 63.4 |
| MD elongation | 104.0 | 127.0 | 125.0 | 140.0 | 143.0 | 138.0 | 130.0 | 130.0 | 129.5 |
Data after hot rolling
| Performance | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | It is average |
| CD strength | 37.8 | 37.8 | 37.0 | 37.6 | 39.0 | 38.5 | 34.5 | 36.5 | 37.3 |
| CD elongation | 130 | 135 | 130 | 140 | 135 | 145 | 140 | 130 | 135.6 |
| MD strength | 60.0 | 61.2 | 62.1 | 59.8 | 57.6 | 58.9 | 59.8 | 63.1 | 60.3 |
| MD elongation | 110 | 110 | 120 | 125 | 120 | 125 | 115 | 110 | 116.8 |
Comparative example 4:100%pp spunbond raw material；
1, the raw material that 100%pp spunbond raw material is stirred squeeze by feed system (vacuum suction) to screw rod and be melted
Melt, obtains hot melt (270 DEG C of screw rod melting temperature)；
2, the hot melt is filtered, measured and distributed the (hot melt stated under certain temperature, certain pressure
The operation temperature for being filtered, measuring and distributing is 250 DEG C, and pressure is in 10MPa)；
3, the good hot melt of the distribution and computation is subjected to spinning, and spun silk is come into being through side cold front heavy rain
The good hot melt spinning of distribution and computation (is, the cooling wind cooling by cool wind box by spraying silk in the aperture 0.8mm by long filament
20 DEG C of box temperature degree, cooling wind velocity 1.5m/s, by the first growing filament of the cooling acquisition of silk)；
4, will it is described just growing filament carry out drawing-off, obtain fiber (mode by the first growing filament Jing Guo air-flow sub-wire,
By the horn mouth of slit extension apparatus, first growing filament is subjected to air drawing, air drawing speed is 5000m/H；
5, it by the fiber sub-wire lapping, forms fibre web and (is taped against into the fiber is mixed and disorderly on lace curtaining, at having pumping under lace curtaining
Blower carries out downward suction air, fiber is fixed on lace curtaining, carries out precompressed by pony press, forms fibre web)；
6, non-woven cloth will be obtained (by the fibre web by lace curtaining, in the drive of lace curtaining roller after fibre web hot rolling
Under, it is transferred to hot-rolling mill, obtains non-woven cloth, hot-rolling mill temperature after the effect of the heat pressure adhesive of hot-rolling mill topping roll and bottom roll
120 DEG C, line pressure 70MPa of degree, which is transferred to final finishing system by upper winding roller and lower winding roller).
7, the baking oven cooling down for being 40 DEG C by temperature by non-woven cloth；
8, by the non-woven cloth, by smooth roll hot rolling treatment, (for smooth roll without rolling a little, the temperature remains within the normal range for upper roller, and only lower roll heats again after
To 100 DEG C), rear to be cooled down by baking oven, winding.
1 45g test data of table:
Before hot rolling
| Performance | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | It is average |
| CD strength | 50 | 48 | 45 | 51 | 53 | 50 | 48 | 47 | 49 |
| CD elongation | 110 | 105 | 115 | 115 | 110 | 100 | 115 | 110 | 110 |
| MD strength | 65 | 70 | 68 | 72 | 73 | 74 | 64 | 76 | 70.2 |
| MD elongation | 70 | 75 | 75 | 70 | 65 | 80 | 75 | 75 | 73.1 |
Data after hot rolling
| Performance | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | It is average |
| CD strength | 48 | 49 | 45 | 51 | 50 | 50 | 46 | 49 | 48.5 |
| CD elongation | 105 | 110 | 115 | 115 | 110 | 105 | 110 | 110 | 110 |
| MD strength | 65 | 70 | 67 | 70 | 73 | 78 | 67 | 70 | 70 |
| MD elongation | 75 | 75 | 75 | 70 | 65 | 70 | 75 | 70 | 71.8 |
Effect comparison table of the table 4 about elastic non-woven
The technique ensure that the good spinning properties of original formulation and elastic property, meanwhile, greatly strengthen its strength property.
Certainly, above description is also not limited to the example above, technical characteristic of the present invention without description can by or
It is realized using the prior art, details are not described herein；It is not to this that the above examples are only used to illustrate the technical scheme of the present invention
The limitation of invention, describes the invention in detail referring to preferred embodiment, and those skilled in the art should
Understand, the variations, modifications, additions or substitutions that those skilled in the art are made within the essential scope of the present invention
Without departure from spirit of the invention, it also should belong to claims of the invention.
Claims (10)
1. a kind of smooth roll hot rolling elastic non-woven, it is characterised in that: raw material is by elastomer, PP spunbond raw material according to 90%-
The ratio of 97%:3%-10% mixes composition.
2. a kind of smooth roll hot rolling elastic non-woven according to claim 1, it is characterised in that: the elastomer selects prestige
It is any in the described selection of PP spunbond raw material PP3155E3, PP3155E5, H39S-2 up to beautiful 6202FL or Weida beauty 7050FL
It is a kind of.
3. a kind of manufacturing method of smooth roll hot rolling elastic non-wovens described in any item according to claim 1~2, feature exist
In: the following steps are included:
1) elastomer, PP spunbond raw material are uniformly mixed according to the proportion of 90-97%:3-10%；
2) raw material being mixed is vacuum-drawn against screw rod by feed system and carries out extrusion molten, obtain hot melt；
3) hot melt is filtered, measured and distributed；
4) the good hot melt of distribution and computation is subjected to spinning, and by spun silk through side cold front heavy rain, obtains just growing filament；
5) first growing filament is subjected to drawing-off, obtains fiber；
6) by fiber sub-wire lapping, fibre web is formed；
7) by after fibre web hot rolling, non-woven cloth is obtained；
8) the baking oven cooling down for being 30 to 40 DEG C by temperature by non-woven cloth；
9) non-woven cloth is passed through into smooth roll hot rolling treatment, rear to cool down by baking oven, winding again.
4. a kind of manufacturing method of smooth roll hot rolling elastic non-woven according to claim 3, it is characterised in that: step 2)
In, 180 DEG C~270 DEG C of screw rod melting temperature.
5. a kind of manufacturing method of smooth roll hot rolling elastic non-woven according to claim 3, it is characterised in that: step 3)
In, the operation temperature that hot melt is filtered, measures and distributes is 230~250 DEG C, and pressure is in 5~10MPa.
6. a kind of manufacturing method of smooth roll hot rolling elastic non-woven according to claim 3, it is characterised in that: step 4)
In, the good hot melt spinning of distribution and computation is cooling by cool wind box by spraying silk in the aperture 0.3~0.8mm, cool wind box
10~20 DEG C of temperature, cooling 0.2~1.5m/s of wind velocity.
7. a kind of manufacturing method of smooth roll hot rolling elastic non-woven according to claim 3, it is characterised in that: step 5)
In, mode of the first growing filament Jing Guo air-flow sub-wire is led first growing filament progress air-flow by the horn mouth of slit extension apparatus
It stretches, air drawing speed is 2000m/H--5000m/H.
8. a kind of manufacturing method of smooth roll hot rolling elastic non-woven according to claim 3, it is characterised in that: step 6)
In, by fiber being taped against on lace curtaining in a jumble, at having exhaust fan under lace curtaining, downward suction air is carried out, fiber is fixed on into
On lace curtaining, precompressed is carried out by pony press, forms fibre web.
9. a kind of manufacturing method of smooth roll hot rolling elastic non-woven according to claim 3, it is characterised in that: step 7)
In, by fibre web by being transferred to hot-rolling mill under the drive of lace curtaining roller at lace curtaining, by hot-rolling mill topping roll and bottom roll
Non-woven cloth is obtained after heat pressure adhesive effect, 80~120 DEG C of hot-rolling mill temperature, 30~70MPa of line pressure；Non-woven cloth passes through upper
Winding roller and lower winding roller, are transferred to final finishing system.
10. a kind of manufacturing method of smooth roll hot rolling elastic non-woven according to claim 3, it is characterised in that: step
9) in, smooth roll hot rolling treatment is using smooth roll without rolling a little, and the temperature remains within the normal range for upper roller, and only lower roll is heated to 80-100 DEG C.
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| CN110965211A (en) * | 2019-12-13 | 2020-04-07 | 苏州多瑈新材料科技有限公司 | Method for producing nonwoven material of hollow elastic fiber |
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| CN112281301A (en) * | 2020-10-15 | 2021-01-29 | 青岛大学 | High-elasticity recovery melt-blown non-woven fabric and preparation method thereof |
| CN112281313A (en) * | 2020-10-15 | 2021-01-29 | 青岛大学 | High-elasticity recovery spun-bonded non-woven fabric and preparation method thereof |
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Application publication date: 20190222 |