CN106906574A - A kind of high-elasticity non-woven fabric and its production technology - Google Patents
A kind of high-elasticity non-woven fabric and its production technology Download PDFInfo
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- CN106906574A CN106906574A CN201710033409.7A CN201710033409A CN106906574A CN 106906574 A CN106906574 A CN 106906574A CN 201710033409 A CN201710033409 A CN 201710033409A CN 106906574 A CN106906574 A CN 106906574A
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 51
- 238000005516 engineering process Methods 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- -1 polypropylene Polymers 0.000 claims abstract description 27
- 239000002994 raw material Substances 0.000 claims abstract description 26
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000004698 Polyethylene Substances 0.000 claims abstract description 11
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 11
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 11
- 229920001577 copolymer Polymers 0.000 claims abstract description 11
- 239000002530 phenolic antioxidant Substances 0.000 claims abstract description 11
- 229920000573 polyethylene Polymers 0.000 claims abstract description 11
- 239000004408 titanium dioxide Substances 0.000 claims abstract description 11
- 239000004743 Polypropylene Substances 0.000 claims abstract description 10
- UAUDZVJPLUQNMU-KTKRTIGZSA-N erucamide Chemical compound CCCCCCCC\C=C/CCCCCCCCCCCC(N)=O UAUDZVJPLUQNMU-KTKRTIGZSA-N 0.000 claims abstract description 10
- 229920001155 polypropylene Polymers 0.000 claims abstract description 10
- 150000008301 phosphite esters Chemical class 0.000 claims abstract description 6
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000005977 Ethylene Substances 0.000 claims abstract description 5
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 claims abstract description 5
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 claims abstract description 5
- 238000009987 spinning Methods 0.000 claims description 28
- 239000000835 fiber Substances 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- 235000021050 feed intake Nutrition 0.000 claims description 5
- 238000005098 hot rolling Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical class OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 150000001336 alkenes Chemical class 0.000 claims 1
- 230000000295 complement effect Effects 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 239000000155 melt Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005422 blasting Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 241000894007 species Species 0.000 description 2
- 241000219198 Brassica Species 0.000 description 1
- 235000003351 Brassica cretica Nutrition 0.000 description 1
- 235000003343 Brassica rupestris Nutrition 0.000 description 1
- 229920002334 Spandex Polymers 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- QKSKPIVNLNLAAV-UHFFFAOYSA-N bis(2-chloroethyl) sulfide Chemical compound ClCCSCCCl QKSKPIVNLNLAAV-UHFFFAOYSA-N 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000010460 mustard Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000004759 spandex Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/005—Synthetic yarns or filaments
- D04H3/007—Addition polymers
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/082—Melt spinning methods of mixed yarn
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/08—Melt spinning methods
- D01D5/088—Cooling filaments, threads or the like, leaving the spinnerettes
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
- D01F6/44—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds
- D01F6/46—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from mixtures of polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds as major constituent with other polymers or low-molecular-weight compounds of polyolefins
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
-
- 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
- D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
- D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
- D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding
- D04H3/147—Composite yarns or filaments
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
- Nonwoven Fabrics (AREA)
Abstract
The invention discloses a kind of high-elasticity non-woven fabric and its production technology, the high-elasticity non-woven fabric is composited by three layers of spun-bonded non-woven fabrics, and every layer of spun-bonded non-woven fabrics include the raw material of following percentage by weight：Ethylene, propylene semi-crystalline co-polymers 74%~96%, polypropylene 1.5%~24%, polyethylene 0.029%~0.096%, saturation erucyl amide 0.27%~1.08%, phenolic antioxidant 0.04%~0.156%, phosphite ester kind antioxidant 0.04%~0.22%, titanium dioxide 0.38%~1.59%.
Description
Technical field
The present invention relates to nonwoven cloth material technical field, more particularly to a kind of high-elasticity non-woven fabric and its production technology.
Background technology
Non-woven fabrics has that technological process is short, throughput rate fast, yield also known as non-weaving cloth compared with traditional woven cloths
The advantage such as height, low cost, purposes be wide.With continuing to develop for technology, the species and purposes of nonwoven are also more and more diversified.And
So on current nonwovens markets, still less with elastomeric non-woven fabrics species, one of major reason is exactly bullet
Property non-woven fabrics product formula matching it is difficult, spinning technique be not easily adjusted with grasp, so as to cause spinning during Resilient product to be stranded
Difficulty, exists the problems such as spinning process has drop slurry, fracture of wire.Because technique is not adjusted in place, product and silk is more, feel
Coarse, resilience is poor, and such product does not possess application value substantially.
The content of the invention
It is an object of the invention to overcome the deficiencies in the prior art, there is provided a kind of elasticity high-elasticity non-woven fabric high.
In order to realize the above object the technical solution adopted in the present invention is：
A kind of high-elasticity non-woven fabric, the high-elasticity non-woven fabric is composited by three layers of spun-bonded non-woven fabrics, every layer of spunbond nothing
Spin the cloth raw material including following percentage by weight：Ethylene, propylene semi-crystalline co-polymers 74%~96%, polypropylene 1.5%~
24%th, polyethylene 0.029%~0.096%, saturation erucyl amide 0.27%~1.08%, phenolic antioxidant 0.04%~0.156%,
Phosphite ester kind antioxidant 0.04%~0.22%, titanium dioxide 0.38%~1.59%.
The present invention also provides this kind of production technology of high-elasticity non-woven fabric, and each layer spun-bonded non-woven fabrics are by following technique productions
Form：
S1. feed intake：By ethylene, propylene semi-crystalline co-polymers, polypropylene, polyethylene, saturation erucyl amide, phenolic antioxidant, phosphorous
Acid esters kind antioxidant and titanium dioxide are matched according to formula, and all raw materials are sent into screw extruder；
S2. melt：Raw material in step S1 is entered into screw extruder from charge door, the screw rod that raw material passes through screw extruder
Conveyed and mixed, while raw material temperature in course of conveying is raised and gradually melted so that be sufficiently mixed between material, melted
Melt and formed melt；
S3. filter：The impurity in melt is filtered off by fondant filter；
S4. spinning：Melt is accurately measured with measuring pump, and melt is produced enough operating pressures to push ahead
Into spinning manifold；Spinning manifold is allocated to melt, melt is distributed along the breadth of non-woven fabrics as homogeneously as possible, then
Melt is extruded into silk through spinneret；
S5. cool down：The melt stream of high temperature is cooled down using side-blown bellows；
S6. drawing-off：The high speed cold air stream produced using blower fan realizes the drawing-off to melt stream, melt stream is turned into height
The fiber of orientation, and by the suction of lower exhausting, be layered on lace curtaining；
S7. into net：Under the effect of lower suction pressure, the attenuating blast of spinning system is pumped, and fleece then stays in lapper
Lace curtaining on formed individual layer spun-bonded non-woven fabrics；
S8. consolidate：The spun-bonded non-woven fabrics formed in three layers of S7 are consolidated to form three layers in the presence of hot-rolling mill high temperature, high pressure
Compound high resiliency spun-bonded non-woven fabrics；
S9. wind：Tentering, fixed length, cutting, winding are carried out to molded non-woven fabrics by up- coiler.
Preferably, in described step S2, the temperature in the area of screw extruder 1~6 is：1 150 DEG C of area~190 DEG C；2 areas 155
DEG C~195 DEG C；3 160 DEG C of areas~200 DEG C；4 165 DEG C of areas~205 DEG C；5 170 DEG C of areas~210 DEG C；6 175 DEG C of areas~215 DEG C.
Preferably, in the step S4, the temperature of spinning manifold is 180 DEG C~220 DEG C.
Preferably, in the step S5, the cold wind temperature of side-blown bellows is 12 DEG C~22 DEG C, and the blower fan of side-blown bellows turns
Speed is 580 rpm~980 rpm.
Preferably, in the step S8, bilaminar fiber net can be compensated to thin position of one layer of fleece, three layers
Fleece can be compensated to the thin point of above two layers of fleece, so as to form uniform fleece.
The beneficial effects of the invention are as follows：High-elasticity non-woven fabric of the invention, the deformation of its product is big, and resilience is good, pastes skin
Comfortably；Production procedure is short, easy processing, alternative most of in the market with respect to other Resilient products to more environment-friendly
Use conventional threads elastic fabric or spandex thread composite material.
Specific embodiment
Claimed technical solution of the invention is described in further detail in conjunction with specific embodiment.
Embodiment one
The high-elasticity non-woven fabric of the present embodiment is composited by three layers of spun-bonded non-woven fabrics, wherein each layer spun-bonded non-woven fabrics are by following
The raw material of mass percent is made：Ethylene, propylene semi-crystalline co-polymers 96%, polypropylene 1.5%, polyethylene 0.029%, saturation mustard
Sour acid amides 1.08%, phenolic antioxidant 0.04%, phosphite ester kind antioxidant 0.04%, titanium dioxide 1.311%.
The production technology of high-elasticity non-woven fabric in the present embodiment is comprised the following steps：
S1. feed intake：By ethylene, propylene semi-crystalline co-polymers, polypropylene, polyethylene, saturation erucyl amide, phenolic antioxidant, phosphorous
Acid esters kind antioxidant and titanium dioxide are matched according to formula, and all raw materials are sent into screw extruder.
S2. melt：In the screw channel that raw material in step S1 enters into screw extruder from charge door, raw material is squeezed by screw rod
The screw rod of press is conveyed and mixed, while raw material temperature in course of conveying is raised and gradually melted so that between material
Fully fusion forms melt；In the present embodiment, the temperature in the area of screw extruder 1~6 is：1 150 DEG C of area, 2 155 DEG C of areas, 3rd area
160 DEG C, 4 165 DEG C of areas, 5 170 DEG C of areas, 6 175 DEG C of areas.
S3. filter：The impurity in melt is filtered off by fondant filter.
S4. spinning：Melt is accurately measured with measuring pump, and melt is produced enough operating pressures with forward
Advance into spinning manifold；Spinning manifold is allocated to melt, melt is distributed along the breadth of non-woven fabrics as homogeneously as possible,
Subsequent melt is extruded into silk through spinneret.In the present embodiment, the temperature of spinning manifold is 180 DEG C.
S5. cool down：Cooling stretching is carried out to the melt stream of high temperature using side-blown bellows.In the present embodiment, cross air blasting
The cold wind temperature of case is 22 DEG C, and the rotation speed of fan of side-blown bellows is 980 rpm.
S6. drawing-off：The high velocity air produced using blower fan realizes the drawing-off to melt stream, melt stream is turned into height
The fiber of orientation, and by the suction of lower exhausting, be layered on lace curtaining.In the present embodiment, drawing-off is more abundant, allows silk to have enough
Cool time, drawing-off passage is more long by 33% than traditional.Additionally, the present embodiment is also using the drawing-off passage of wide slot：Integral type is led
Passage is stretched, structure is simpler, the good evenness of product, meanwhile, narrow drawing-off passage more long can allow silk more fully to be led
Stretch.Using the diffusion admittance of small radian：Allow the rotation that silk is less, such silk just can allow product with more in longitudinal arrangement
Longitudinal direction strength and elasticity are all more preferable.
S7 is into net：Under the effect of lower suction pressure, the attenuating blast of spinning system is pumped, and fleece then stays in into net
The spun-bonded non-woven fabrics of individual layer are formed on the lace curtaining of machine.In the present embodiment, bilaminar fiber net can be to one layer of Bao Dianwei of fleece
Put and compensate, three layers of fleece can be compensated to the thin point of above two layers of fleece, so as to form uniform fleece.
S8. consolidate：The fleece formed in three layers of S7 is consolidated into three layers of formation in the presence of hot-rolling mill high temperature, high pressure multiple
The high resiliency spun-bonded non-woven fabrics of conjunction.
S9. wind：Tentering, fixed length, cutting, winding are carried out to molded elastic non-woven cloth by up- coiler.
Embodiment two
The high-elasticity non-woven fabric of the present embodiment is composited by three layers of spun-bonded fibre net, wherein each layer spun-bonded non-woven fabrics are by following
The raw material of mass percent is made：It is ethylene, propylene semi-crystalline co-polymers 74%, polypropylene 23.668%, polyethylene 0.096%, full
With erucyl amide 0.27%, phenolic antioxidant 0.156%, phosphite ester kind antioxidant 0.22%, titanium dioxide 1.59%.
The production technology of high-elasticity non-woven fabric in the present embodiment is comprised the following steps：
S1. feed intake：By ethylene, propylene semi-crystalline co-polymers, polypropylene, polyethylene, saturation erucyl amide, phenolic antioxidant, phosphorous
Acid esters kind antioxidant and titanium dioxide are matched according to formula, and all raw materials are sent into screw extruder.
S2. melt：In the screw channel that raw material in step S1 enters into screw extruder from charge door, raw material is squeezed by screw rod
The screw rod of press is conveyed and mixed, while raw material temperature in course of conveying is raised and gradually melted so that between material
Fully fusion forms melt；In the present embodiment, the temperature in the area of screw extruder 1~6 is：1 170 DEG C of area, 2 175 DEG C of areas, 3rd area
180 DEG C, 4 180 DEG C of areas, 5 185 DEG C of areas, 6 190 DEG C of areas.
S3. filter：The impurity in melt is filtered off by fondant filter.
S4. spinning：Melt is accurately measured with measuring pump, and melt is produced enough operating pressures with forward
Advance into spinning manifold；Spinning manifold is allocated to melt, melt is distributed along the breadth of non-woven fabrics as homogeneously as possible,
Subsequent melt is extruded into silk through spinneret.In the present embodiment, the temperature of spinning manifold is 195 DEG C.
S5. cool down：Cooling stretching is carried out to the melt stream of high temperature using side-blown bellows.In the present embodiment, cross air blasting
The cold wind temperature of case is 17 DEG C, and the rotation speed of fan of side-blown bellows is 780rpm.
S6. drawing-off：The high velocity air produced using blower fan realizes the drawing-off to melt stream, melt stream is turned into height
The fiber of orientation, and by the suction of lower exhausting, be layered on lace curtaining.In the present embodiment, drawing-off is more abundant, allows silk to have enough
Cool time, drawing-off passage is more long by 33% than traditional.Additionally, the present embodiment is also using the drawing-off passage of wide slot：Integral type is led
Stretch passage, the good evenness of product, meanwhile, narrow drawing-off passage more long can allow silk to obtain more fully drawing-off.Using small arc
The diffusion admittance of degree：Allow the rotation that silk is less, such silk just can allow the longitudinal direction strength and bullet of product with more in longitudinal arrangement
Property is all more preferable.
S7 is into net：Under the effect of lower suction pressure, the attenuating blast of spinning system is pumped, and fleece then stays in into net
The spun-bonded non-woven fabrics of individual layer are formed on the lace curtaining of machine.In the present embodiment, bilaminar fiber net can be to one layer of Bao Dianwei of fleece
Put and compensate, three layers of fleece can be compensated to the thin point of above two layers of fleece, so as to form uniform fleece.
S8. consolidate：The fleece formed in three layers of S7 is consolidated into three layers of formation in the presence of hot-rolling mill high temperature, high pressure multiple
The high resiliency spun-bonded non-woven fabrics of conjunction.
S9. wind：Tentering, fixed length, cutting, winding are carried out to molded elastic non-woven cloth by up- coiler.
Embodiment three
The high-elasticity non-woven fabric of the present embodiment is composited by three layers of spun-bonded fibre net, wherein each layer spun-bonded fibre net is by following
The raw material of mass percent is made：Ethylene, propylene semi-crystalline co-polymers 74.068%, polypropylene 24%, polyethylene 0.096%, saturation
Erucyl amide 1.08%, phenolic antioxidant 0.156%, phosphite ester kind antioxidant 0.22%, titanium dioxide 0.38%.
The production technology of high-elasticity non-woven fabric in the present embodiment is comprised the following steps：
S1. feed intake：By ethylene, propylene semi-crystalline co-polymers, polypropylene, polyethylene, saturation erucyl amide, phenolic antioxidant, phosphorous
Acid esters kind antioxidant and titanium dioxide are matched according to formula, and all raw materials are sent into screw extruder.
S2. melt：In the screw channel that raw material in step S1 enters into screw extruder from charge door, raw material is squeezed by screw rod
The screw rod of press is conveyed and mixed, while raw material temperature in course of conveying is raised and gradually melted so that between material
Fully fusion forms melt；In the present embodiment, the temperature in the area of screw extruder 1~6 is：1 190 DEG C of area, 2 195 DEG C of areas, 3rd area
200 DEG C, 4 205 DEG C of areas, 5 210 DEG C of areas, 6 215 DEG C of areas.
S3. filter：The impurity in melt is filtered off by fondant filter.
S4. spinning：Melt is accurately measured with measuring pump, and melt is produced enough operating pressures with forward
Advance into spinning manifold；Spinning manifold is allocated to melt, melt is distributed along the breadth of non-woven fabrics as homogeneously as possible,
Subsequent melt is extruded into silk through spinneret.In the present embodiment, the temperature of spinning manifold is 220 DEG C.
S5. cool down：Cooling stretching is carried out to the melt stream of high temperature using side-blown bellows.In the present embodiment, cross air blasting
The cold wind temperature of case is 12 DEG C, and the rotation speed of fan of side-blown bellows is 980rpm.
S6. drawing-off：The high velocity air produced using blower fan realizes the drawing-off to melt stream, melt stream is turned into height
The fiber of orientation, and by the suction of lower exhausting, be layered on lace curtaining.In the present embodiment, drawing-off is more abundant, allows silk to have enough
Cool time, drawing-off passage is more long by 33% than traditional.Additionally, the present embodiment is also using the drawing-off passage of wide slit：Integral type
Drawing-off passage, the good evenness of product, meanwhile, narrow drawing-off passage more long can allow silk to obtain more fully drawing-off.Using small
The diffusion admittance of radian：Allow the rotation that silk is less, such silk just can with more in longitudinal arrangement, allow product longitudinal direction strength and
Elasticity is all more preferable.
S7 is into net：Under the effect of lower suction pressure, the attenuating blast of spinning system is pumped, and fleece then stays in into net
The spun-bonded non-woven fabrics of individual layer are formed on the lace curtaining of machine.In the present embodiment, bilaminar fiber net can be to one layer of Bao Dianwei of fleece
Put and compensate, three layers of fleece can be compensated to the thin point of above two layers of fleece, so as to form uniform fleece.
S8. consolidate：The fleece formed in three layers of S7 is consolidated into three layers of formation in the presence of hot-rolling mill high temperature, high pressure multiple
The high resiliency spun-bonded non-woven fabrics of conjunction.
S9. wind：Tentering, fixed length, cutting, winding are carried out to molded elastic non-woven cloth by up- coiler.
45gsm high-elasticity non-woven fabrics to being obtained in above three embodiment carry out extension test (ASTM D5035), its
Test result is as follows：
| Elongation at break（MD） | Elongation at break（CD） | Ultimate strength（MD） | Ultimate strength（CD） | |
| Embodiment one | 390% | 410% | 12N/5cm | 7N/5cm |
| Embodiment two | 380% | 430% | 14N/5cm | 8N/5cm |
| Embodiment three | 330% | 390% | 15N/5cm | 9N/5cm |
High-elasticity non-woven fabric to being obtained in above three embodiment carries out resilience test（ASTM D5459）, it is followed for the third time
Ring test（Tensile elongation 100%）Test result it is as follows：
| Peak force（MD） | Permanent set | |
| Embodiment one | 5N | 2.4% |
| Embodiment two | 6N | 2% |
| Embodiment three | 6.4N | 1.8% |
The embodiment of the above is only presently preferred embodiments of the present invention, and any formal limitation is not done to the present invention.Appoint
What those of ordinary skill in the art, in the case where technical solution of the present invention ambit is not departed from, using in the technology of the disclosure above
Appearance makes more possible variations and retouching to technical solution of the present invention, or modification is accordingly to be regarded as the Equivalent embodiments of equivalent variations.
Therefore all contents without departing from technical solution of the present invention, according to the equivalent equivalence changes that the thinking of the present invention is made, all should be covered by
In protection scope of the present invention.
Claims (6)
1. a kind of high-elasticity non-woven fabric, it is characterised in that the high-elasticity non-woven fabric is composited by three layers of spun-bonded non-woven fabrics, often
The layer spun-bonded non-woven fabrics raw material including following percentage by weight：Ethylene, propylene semi-crystalline co-polymers 74%~96%, poly- third
Alkene 1.5%~24%, polyethylene 0.029%~0.096%, saturation erucyl amide 0.27%~1.08%, phenolic antioxidant 0.04%
~0.156%, phosphite ester kind antioxidant 0.04%~0.22%, titanium dioxide 0.38%~1.59%.
2. a kind of production technology of high-elasticity non-woven fabric as claimed in claim 1, it is characterised in that comprise the following steps：S1.
Feed intake：By ethylene, propylene semi-crystalline co-polymers, polypropylene, polyethylene, saturation erucyl amide, phenolic antioxidant, phosphorous acid esters
Antioxidant and titanium dioxide are matched according to formula, and all raw materials are sent into screw extruder；S2. melt：Step S1
In raw material entered into screw extruder from charge door, raw material is conveyed and mixed by the screw rod of screw extruder, together
When raw material in course of conveying temperature raise and gradually melt so that be sufficiently mixed between material, melted and form melt；S3.
Filtering：The impurity in melt is filtered off by fondant filter；S4. spinning：Melt is accurately measured with measuring pump, and
Melt is set to produce enough operating pressures to enter spinning manifold to push ahead；Spinning manifold is allocated to melt, makes melt
It is distributed along the breadth of non-woven fabrics as homogeneously as possible, subsequent melt is extruded into silk through spinneret；S5. cool down：Use side-blown bellows
Melt stream to high temperature carries out cooling stretching；S6. drawing-off：The high speed cold air stream produced using blower fan is realized to melt stream
Drawing-off, melt stream is turned into height-oriented fiber, and by the suction of lower exhausting, be layered on lace curtaining；S7. into net：
Under lower suction pressure effect, the attenuating blast of spinning system is pumped, and fleece is then stayed on the lace curtaining of lapper and forms single
The spun-bonded non-woven fabrics of layer；S8. consolidate：The fleece formed in three layers of S7 is consolidated into shape in the presence of hot-rolling mill high temperature, high pressure
Into three layers of compound high resiliency spun-bonded non-woven fabrics；S9. wind：By up- coiler molded elastic non-woven cloth is carried out tentering,
Fixed length, cutting, winding.
3. a kind of production technology according to claim 2, it is characterised in that：In described step S2, screw extruder 1~
The temperature in 6th area is：1 140 DEG C of area~180 DEG C；2 145 DEG C of areas~185 DEG C；3 150 DEG C of areas~190 DEG C；4 155 DEG C of areas~195 DEG C；5
160 DEG C~200 DEG C of area；6 165 DEG C of areas~205 DEG C.
4. a kind of production technology according to claim 2, it is characterised in that：In the step S4, the temperature of spinning manifold
It is 165 DEG C~205 DEG C.
5. a kind of production technology according to claim 2, it is characterised in that：In the step S5, the cold wind of side-blown bellows
Temperature is 12 DEG C~24 DEG C, and the rotation speed of fan of side-blown bellows is 580 rpm~980 rpm.
6. a kind of production technology according to claim 2, it is characterised in that：In the step S8, three layers of spunbond nonwoven
Thin locations complementary of cloth.
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| CN107700076A (en) * | 2017-08-22 | 2018-02-16 | 浙江吉和非织造布有限公司 | A kind of high-elasticity non-woven fabric and preparation method thereof |
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Application publication date: 20170630 |