CN208486034U - Three layers of composite non-weaving cloth of one kind and its production equipment - Google Patents
Three layers of composite non-weaving cloth of one kind and its production equipment Download PDFInfo
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- CN208486034U CN208486034U CN201820155683.1U CN201820155683U CN208486034U CN 208486034 U CN208486034 U CN 208486034U CN 201820155683 U CN201820155683 U CN 201820155683U CN 208486034 U CN208486034 U CN 208486034U
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- 239000002131 composite material Substances 0.000 title claims abstract description 68
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 24
- 239000010410 layer Substances 0.000 claims abstract description 312
- 239000000835 fiber Substances 0.000 claims abstract description 126
- 239000000758 substrate Substances 0.000 claims abstract description 111
- 238000009826 distribution Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims description 61
- 229920001131 Pulp (paper) Polymers 0.000 claims description 53
- 239000002253 acid Substances 0.000 claims description 23
- 238000004804 winding Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract description 2
- 239000000428 dust Substances 0.000 abstract description 2
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- 238000000034 method Methods 0.000 description 25
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- 238000002844 melting Methods 0.000 description 17
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Abstract
The utility model relates to a kind of three layers of composite non-weaving cloth and its production equipments, and the first outer layer, substrate and the second outer layer including successively layered distribution, fiber connects between the first outer layer and substrate, and fiber connects between substrate and the second outer layer.Three layers of composite non-weaving cloth of the utility model are degradable, dust removing effects are good, and water absorbing properties are good, therefore it is defended environment protection field and have biggish potential using value cleaning and separate, cure.
Description
Technical field
The utility model relates to a kind of non-woven cloth and preparation method thereof, specially a kind of three layers of composite non-weaving cloth and its
Production equipment.
Background technique
Meltblown is a kind of technique of One-step production non-woven material, has high production efficiency, easy to operate, economy effect
The high feature of benefit.It is that the fiber of ejection is led to thermoplastic resin material grain under the action of high velocity, hot air through melting extrusion
It stretches and superfine fibre is made, obtain non-woven material after lapping by the heat bonding of fiber itself.Melt-blown non-woven material because
Its fibre diameter is small, large specific surface area, the characteristic that hole is small and voidage is high, is widely used in sanitation and hygiene etc., has
There are biggish application prospect and market.
The existing nonwoven composite structure with wood pulp is mostly that wood pulp layer+two layers of polyester layer is compound, wood pulp layer+spunbond
Two layers of polypropylene web compound, wood pulp layer+three layers of terylene spun-bonded layer+wood pulp layer is compound, used in above-mentioned composite clean material
Wood pulp layer be bleached pulp for example bleach viscose or bleaching wood-fibred.Viscose fiber and wood-fibred have greatly in process of production
The waste liquid of amount generates, and especially after bleaching, this process not only will form a large amount of waste water, and can leave in web surface
Chemical component influences the service performance of product；Product, also can be to ring after abandonment because using the non-degradable materials such as polypropylene simultaneously
Border impacts.
Other wipers producer uses staple fiber in airlaid nonwoven structure, and is glued them with adhesive
It is combined, but needs to fix reticular structure using adhesive at a low density, stiff, thin and thick which results in thin slice feels
It is inconsistent, the same service performance for influencing product.
There are many techniques for the compound technique of above-mentioned material, and there are also pressure sinterings in addition to Method for bonding, also have using the compound work of spun lacing
What skill was formed, but above-mentioned existing non-woven material still has certain defect, as the intensity of non-woven material is lower, pliability not
Height easily falls bits etc..
In the prior art, such as Chinese patent 200810059003.7, a kind of three-layer composite water-spurt non-woven material is disclosed
Processing method, include the following steps: the respective mixed merga pass shredding mixing apparatus respectively by the raw material as upper and lower layer first
Treated, and fibrous raw material feeds two sets of networking systems；Fibrous raw material as upper and lower layer is respectively formed fibre in networking system
Net is tieed up as the upper and lower of three layers of complex nonwoven product, is retracted into one layer of wood with uncoil-stand between layer and lower layer on it
Raw material of the paper as middle layer is starched, trilaminate material is superimposed at bottom curtain；Superimposed composite material feeds spun-laced machine, in spun-laced machine
It is interior through multiple water needle be iteratively operating on 3-layer composite material be allowed to tangle reinforce, in drying, be made after being wound into a roll.It is still
The problems such as of causing environmental pollution, is not can solve in production process.
Utility model content
The purpose of the utility model is to overcome the above deficiencies in the existing technologies, and provide it is a kind of it is environmental-friendly,
Low-cost three layers of composite non-weaving cloth and its production equipment.
The technical scheme in the invention for solving the above technical problem is: a kind of three layers of composite non-weaving cloth, feature
Be: the first outer layer, substrate and the second outer layer including successively layered distribution, fiber connects between the first outer layer and substrate, base
Fiber connects between material and the second outer layer.
The material of first outer layer described in the utility model and the material of the second outer layer are acid fiber by polylactic, the substrate
Material is natural wood pulp fiber.
A kind of production equipment of three layers of composite non-weaving cloth, it is characterised in that: sent including No.1 outer layer feed device, substrate
Expect device, two extra layer feed device, spun lacing bracing means, hot bellows, winding device and defeated lace curtaining, No.1 outer layer feeding dress
It sets, substrate feed device, two extra layer feed device and spun lacing bracing means are set to the top of defeated lace curtaining, No.1 outer layer feeding
Device, substrate feed device, two extra layer feed device, spun lacing bracing means, hot bellows and winding device sending along defeated lace curtaining
Material direction is set gradually.
No.1 negative pressure device, substrate negative pressure device, No. two negative pressure dresses are provided with below defeated lace curtaining described in the utility model
It sets and reinforces negative pressure device with spun lacing, No.1 negative pressure device is set to the lower section of No.1 outer layer feed device, and substrate negative pressure device is set
It is placed in the lower section of substrate feed device, No. two negative pressure devices are set to the lower section of two extra floor feed device, and spun lacing reinforces negative pressure
Device is set to the lower section of spun lacing bracing means, and No.1 negative pressure device, substrate negative pressure device, No. two negative pressure devices and spun lacing are reinforced
Negative pressure device is set gradually along the feed direction of defeated lace curtaining.
A kind of production method of three layers of composite non-weaving cloth, it is characterised in that:
Step is 1.: No.1 outer layer feed device makes polylactic acid form the first outer layer polylactic acid using meltblowing method, the
As meltblown nonwoven layer, the first outer layer is sent under the conveying of defeated lace curtaining to the lower section of substrate feed device one outer layer；Melt-blown
The cortex and fibre-to-fibre contact of fiber melt entanglement at high temperature and further reinforce to fibre web and form multi-fiber and fibre web is blended.
Step is 2.: substrate feed device forms natural wood pulp web using wet forming, while by natural wood pulp fiber
It nets evenly dispersed on the first outer layer, forms substrate, substrate is as wood pulp fiber layer；Substrate and the first outer layer are in the defeated of defeated lace curtaining
Send down the lower section sent to two extra layer feed device；
Step is 3.: two extra layer feed device make polylactic acid form the covering of the second outer layer polylactic acid using meltblowing method
In the top of substrate, the second outer layer is as meltblown nonwoven layer, the conveying of substrate, the first outer layer and the second outer layer in defeated lace curtaining
Under send to the lower section of spun lacing bracing means；It is further right that the cortex and fibre-to-fibre contact of meltblown fibers melt entanglement at high temperature
Fibre web is reinforced and forms multi-fiber and fibre web is blended.
Step is 4.: spun lacing bracing means carries out pre- spun lacing to substrate, the first outer layer and the second outer layer to carry out pre-reinforcement,
It is anti-through substrate, the first outer layer, the second outer layer and defeated lace curtaining with water needle impact substrate, the first outer layer and the second outer layer after pre-reinforcement
Water flow is played, keeps substrate, the first outer layer and the second outer layer entangled with one another, meltblown nonwoven layer and wood pulp fiber layer are connected with each other,
Wood pulp fiber layer is also partially maintained in meltblown nonwoven layer, and composite nonwoven material is formed；It is compound by online spun lacing,
Meltblown fibers and there is the wood pulp cellulose centainly to tangle to intertwine with each other, wood pulp cellulose is also partially maintained in melt-blow fiber web.
Step is 5.: composite nonwoven material is admitted to hot bellows, and hot wind the temperature inside the box is higher than the fusing point of polylactic acid, is meltblown non-
It is further thermally bonded, while can be dried inside woven layer and between meltblown nonwoven layer and wood pulp fiber layer
Extra moisture in composite nonwoven material；It is further that the cortex and fibre-to-fibre contact of meltblown fibers melt entanglement at high temperature
Fibre web is reinforced and forms multi-fiber and fibre web is blended.
Step is 6.: it is coiled that composite nonwoven material from hot bellows leaves rolled device.
The fibre diameter of natural wood pulp fiber described in the utility model is 10-25 μm, and the fibre diameter of acid fiber by polylactic is
3-5 μm。
Acid fiber by polylactic described in the utility model is skin-core structure, and the cortex and sandwich layer of acid fiber by polylactic are polylactic acid,
The fusing point for forming the polylactic acid of cortex is lower than the fusing point for forming the polylactic acid of sandwich layer；No.1 outer layer feed device and two extra layers are sent
In the polylactic acid that material device uses, according to the mass fraction, the polylactic acid for forming cortex is 20-50 parts, forms the polylactic acid of sandwich layer
It is 50-80 parts.
Hot wind the temperature inside the box described in the utility model is higher than the fusing point for forming the polylactic acid of cortex.
The longitudinal tensile strength of three layers of composite non-weaving cloth described in the utility model is 38.5N, and transverse tensile strength is
The thickness of 25N, meltblown nonwoven layer are greater than 0.8 millimeter.
A kind of application of three layers of composite non-weaving cloth, it is characterised in that: for making wiper after cutting.
Compared with prior art, superior effect of the utility model is:
1) the utility model can be degradable using raw material, protects natural environment, avoids secondary pollution, meets resource
The strategy of environment sustainable development.
2) cost of material used in the utility model is low, and source is wide, has saved production cost.
3) the wiper wiping effect of the utility model is good, and cleaning dirt-removing power is strong and cloth texture is strong, good water absorption, soft
It is soft, be not easy bits.
Detailed description of the invention
Fig. 1 is the three-dimensional knot of three layers of composite non-weaving cloth of the utility model embodiment 1, embodiment 2 and comparative example
Structure schematic diagram.
Fig. 2 is that the production of three layers of composite non-weaving cloth of the utility model embodiment 1, embodiment 2 and comparative example is set
Standby schematic view of the front view.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
Embodiment 1.
Referring to Fig. 1-2.
The present embodiment is a kind of three layers of composite non-weaving cloth, the first outer layer 1, substrate 2 including successively layered distribution and the
Two outer layers 3.
Wherein, fiber connects between the first outer layer 1 and substrate 2, and fiber connects between substrate 2 and the second outer layer 3.Outside first
The material of layer 1 can be identical with the material of the second outer layer 3, can also be different.Outside the fibre diameter and second of first outer layer 1
The fibre diameter of layer 3 may be the same or different.
Preferably, the material of the first outer layer 1 and the material of the second outer layer 3 are polylactic acid (PLA) fiber, it is right therewith
It answers, the material of substrate 2 is natural wood pulp fiber.First outer layer 1 can carry out stratiform superposition by the different acid fiber by polylactic of multilayer,
Second outer layer 3 can also carry out stratiform superposition by the different acid fiber by polylactic of multilayer.As a kind of simplest embodiment, this reality
It applies in example that the first outer layer 1 is identical with the second outer layer 3, is formed by single layer acid fiber by polylactic.
Preferably, acid fiber by polylactic is skin-core structure.Wherein, the cortex of acid fiber by polylactic and sandwich layer are polylactic acid,
But the polylactic acid for forming cortex is different with the polylactic acid fusing point of sandwich layer is formed.
Preferably, the fusing point for forming the polylactic acid of cortex is lower than the fusing point for forming the polylactic acid of sandwich layer.
As one of specific method for the cortex and sandwich layer for forming different melting points, two kinds of different melting points can be used
The raw material that polylactic acid is mixed to form is produced.Wherein have and be used to form cortex compared with the polylactic acid of low melting point, have compared with
Dystectic polylactic acid is used to form sandwich layer, is mixed to form with the polylactic acid compared with low melting point and the polylactic acid with higher melt
It is used to form the mixed polylactic acid of the first outer layer 1 and the second outer layer 3.
Preferably, according to the mass fraction, in mixed polylactic acid, the polylactic acid for forming cortex is 20-50 parts, core is formed
The polylactic acid of layer is 50-80 parts.
The density of substrate 2 can be about 0.5-2.0 grams/cc.Under normal conditions, the base weight of natural wood pulp fiber is about
It is 20-100 grams/m.
Preferably, the base weight of natural wood pulp fiber is about 30-50 grams/m.
Three layers of composite non-weaving cloth of the present embodiment can be used as a kind of degradable wiping on the basis of above-mentioned material after cutting out
Wiping cloth (rags).
The present embodiment additionally provides the production equipment of three layers of composite non-weaving cloth, including No.1 outer layer feed device 11, base
Material feed device 12, two extra layer feed device 13, spun lacing bracing means 14, hot bellows 15, winding device 16 and defeated lace curtaining.
Wherein, No.1 outer layer feed device 11, substrate feed device 12, two extra layer feed device 13 and spun lacing reinforce dress
Set 14 tops for being set to defeated lace curtaining, No.1 outer layer feed device 11, substrate feed device 12, two extra layer feed device 13,
Spun lacing bracing means 14, hot bellows 15 and winding device 16 are set gradually along the feed direction of defeated lace curtaining.
Preferably, being provided with 22, No. two No.1 negative pressure device 21, substrate negative pressure device negative pressure devices below defeated lace curtaining
23 and spun lacing reinforce negative pressure device 24, No.1 negative pressure device 21 is set to the lower section of No.1 outer layer feed device 11, substrate negative pressure
Device 22 is set to the lower section of substrate feed device 12, and No. two negative pressure devices 23 are set under two extra floor feed device 13
Side, spun lacing reinforce the lower section that negative pressure device 24 is set to spun lacing bracing means 14, No.1 negative pressure device 21, substrate negative pressure device
22, No. two negative pressure devices 23 and spun lacing are reinforced negative pressure device 24 and are set gradually along the feed direction of defeated lace curtaining.
The present embodiment additionally provides the production method of three layers of composite non-weaving cloth, the production of as three layers composite non-weaving cloth
The course of work of equipment, in turn includes the following steps:
Step is 1.: the polylactic acid of mixing, 11 pairs of No.1 outer layer feed device placements are placed in No.1 outer layer feed device 11
Mixed polylactic acid in it uses meltblowing method, successively through screw extruder heating melting, metering pump-metered, spinneret, gas
It is 10-30g/m that grammes per square metre is made after stream drawing-off and cooling2Meltblown fiber web, form it into the first outer layer 1, the first outer layer 1 is made
For meltblown nonwoven layer, the first outer layer 1 is sent under the conveying of defeated lace curtaining to the lower section of substrate feed device 12；
Step 1. in by melt-blown process so that in mixed polylactic acid the first outer layer 1 of formation polylactic acid skin-core structure；
Preferably, meltblown fiber web is fixed on defeated lace curtaining by No.1 negative pressure device 21；Wherein, spinning process uses
Nozzle is core-skin type nozzle, when carrying out heating melt-blown to polylactic acid using screw extruder, after process optimization, is meltblown each work
Skill parameter setting are as follows: extrusion output 8Hz, hot-blast pressure 0.1Mpa, hot blast temperature are 270 DEG C, and receiving distance is 30cm, defeated net
The transmission speed of curtain is 7Hz；Melt blowing machines screw rod each silicon carbide setting such as table 1:
Table 1
Preferably, in the present embodiment, in the mixed polylactic acid of step 1., formed cortex polylactic acid (low melting point
Polylactic acid) it with the mass ratio of the polylactic acid (dystectic polylactic acid) for forming sandwich layer is 10:90, the melt-blown formed in this step is fine
The grammes per square metre of dimension net is 10-12g/m2。
Step is 2.: substrate feed device 12 forms natural wood pulp web using wet forming, while by natural wood pulp fibre
Dimension net is evenly dispersed to substrate 2 on the first outer layer 1, is formed, and substrate 2 is used as wood pulp fiber layer；Substrate 2 exists together with the first outer layer 1
It is sent under the conveying of defeated lace curtaining to the lower section of two extra layer feed device 13；
Preferably, negative pressure gas flow caused by substrate negative pressure device 22 makes natural wood pulp fiber be scattered in the first outer layer 1
On, to form the wood pulp fiber layer of wet-laying；
Preferably, the pressure of negative pressure gas flow caused by No. two negative pressure devices 23 is -0.1Mpa.
Preferably, the grammes per square metre of substrate 2 is 20-40g/m2。
Step is 3.: the poly- cream mixed identical with No.1 outer layer feed device 11 is placed in two extra layer feed device 13
Acid, two extra layer feed device 13 use meltblowing method to the mixed polylactic acid being placed in it, pass through online compound side
It is 10-30g/m that successively grammes per square metre, which is made, after screw extruder heating melting, metering pump-metered, spinneret, drawing-off and cooling in formula2
Meltblown fiber web, form it into the top that the second outer layer 3 is covered on substrate 2, the second outer layer 3 is used as meltblown nonwoven layer,
Substrate 2, the first outer layer 1 and the second outer layer 3 are sent under the conveying of defeated lace curtaining to the lower section of spun lacing bracing means 14；Lead in this step
Melt-blown process is crossed, so that mixed polylactic acid forms the skin-core structure of polylactic acid in the second outer layer 3；
Wherein, when carrying out heating melt-blown to polylactic acid using screw extruder, after process optimization, it is meltblown each technique ginseng
Number setting are as follows: extrusion output 8Hz, hot-blast pressure 0.1Mpa, hot blast temperature are 260 DEG C, and receiving distance is 30cm, defeated lace curtaining
Transmission speed is 7Hz.Each silicon carbide of melt blowing machines screw rod is arranged with table 1；It is born caused by same No. two negative pressure devices 23
Pressure gas stream makes to disperse the meltblown fibers formed in two extra layer feed device 13 on substrate 2.
Preferably, in the present embodiment, in the mixed polylactic acid of step 3., formed cortex polylactic acid (low melting point
Polylactic acid) it with the mass ratio of the polylactic acid (dystectic polylactic acid) for forming sandwich layer is 10:90, the melt-blown formed in this step is fine
The grammes per square metre of dimension net is 10-12g/m2。
Step is 4.: it is pre- that spun lacing bracing means 14 carries out 0.1-0.4Mpa hydraulic pressure to substrate 2, the first outer layer 1 and the second outer layer 3
Spun lacing uses high pressure water needle impact substrate 2, the first outer layer 1 and the second outer layer 3 of 2-4Mpa to carry out pre-reinforcement after pre-reinforcement,
Through substrate 2, the first outer layer 1, the second outer layer 3 and defeated lace curtaining rebound water flow, make substrate 2, the first outer layer 1 and the second outer layer 3 each other
It tangles, meltblown nonwoven layer and has the wood pulp fiber layer centainly to tangle interconnection, wood pulp fiber layer is also partially maintained at
In meltblown nonwoven layer, composite nonwoven material is formed；
It is used to be dehydrated composite nonwoven material preferably, spun lacing reinforces negative pressure device 24；
Step is 5.: composite nonwoven material is admitted to hot bellows 15, and temperature is higher than the fusing point of polylactic acid in hot bellows 15, melts
It is further thermally bonded inside blown non-woven layer of cloth and between meltblown nonwoven layer and wood pulp fiber layer, while can
Dry moisture extra in composite nonwoven material；On the basis of acid fiber by polylactic is skin-core structure, temperature in hot bellows 15
Fusing point higher than polylactic acid be in hot bellows 15 temperature be higher than formed cortex polylactic acid fusing point；
Preferably, the temperature of hot bellows 15 is controlled at 140-160 DEG C.
Preferably, temperature is 160 DEG C in hot bellows 15, composite nonwoven material residence time in hot bellows 15 is 30
Second.
Step is 6.: it is coiled that composite nonwoven material from hot bellows 15 leaves rolled device 16.
Preferably, the winding tension of up- coiler is 0.2-0.5bar by sophisticated sensor control when winding.
Preferably, the winding tension of up- coiler is controlled by sensor in 0.3bar when the present embodiment is wound.
By the above method, it is 45g/m that the present embodiment, which finally obtains grammes per square metre,2Wiping degradable composite non-weaving cloth,
With it is soft, do not fall bits, tear-resistant ability it is strong, can degradable the advantages of, be mainly used for the fields such as Wiping material.
In the case of above-mentioned optimization experiment parameter, the fibre diameter of the natural wood pulp fiber synthesized is 10-25 μm, is gathered
The fibre diameter of acid fiber is 3-5 μm.Wherein, the avarage fiber diameter of the natural wood pulp fiber synthesized is 18 μm.
The longitudinal tensile strength of three layers of composite non-weaving cloth is 38.5N, transverse tensile strength 25N, melt-blow nonwoven
The thickness of layer is greater than 0.8 millimeter, i.e. the thickness of the thickness of the first outer layer 1 and the second outer layer 3 is all larger than 0.8 millimeter.At this point, first
The surface density of outer layer 1 and the surface density of the second outer layer 3 are 20-45g/m2。
Embodiment 2.
Referring to Fig. 1-2.
The present embodiment is a kind of three layers of composite non-weaving cloth, the first outer layer 1, substrate 2 including successively layered distribution and the
Two outer layers 3.
Wherein, fiber connects between the first outer layer 1 and substrate 2, and fiber connects between substrate 2 and the second outer layer 3.Outside first
The material of layer 1 can be identical with the material of the second outer layer 3, can also be different.Outside the fibre diameter and second of first outer layer 1
The fibre diameter of layer 3 may be the same or different.
Preferably, the material of the first outer layer 1 and the material of the second outer layer 3 are acid fiber by polylactic, it is corresponding to it, substrate
2 material is natural wood pulp fiber.First outer layer 1 can be carried out stratiform superposition by the different acid fiber by polylactic of multilayer, outside second
Layer 3 can also carry out stratiform superposition by the different acid fiber by polylactic of multilayer.As a kind of simplest embodiment, in the present embodiment
First outer layer 1 is identical with the second outer layer 3, is formed by single layer acid fiber by polylactic.
Preferably, acid fiber by polylactic is skin-core structure.Wherein, the cortex of acid fiber by polylactic and sandwich layer are polylactic acid,
But the polylactic acid for forming cortex is different with the polylactic acid fusing point of sandwich layer is formed.
Preferably, the fusing point for forming the polylactic acid of cortex is lower than the fusing point for forming the polylactic acid of sandwich layer.
As one of specific method for the cortex and sandwich layer for forming different melting points, two kinds of different melting points can be used
The raw material that polylactic acid is mixed to form is produced.Wherein have and be used to form cortex compared with the polylactic acid of low melting point, have compared with
Dystectic polylactic acid is used to form sandwich layer, is mixed to form with the polylactic acid compared with low melting point and the polylactic acid with higher melt
It is used to form the mixed polylactic acid of the first outer layer 1 and the second outer layer 3.
Preferably, according to the mass fraction, in mixed polylactic acid, the polylactic acid for forming cortex is 20-50 parts, core is formed
The polylactic acid of layer is 50-80 parts.
Preferably, the fusing point for forming the polylactic acid of cortex is 135-150 DEG C in the present embodiment, the poly- cream of sandwich layer is formed
The fusing point of acid is 160-185 DEG C.In the present embodiment according to the mass fraction, in mixed polylactic acid, the polylactic acid of cortex is formed
It is 20:80 with the ratio between the polylactic acid for forming sandwich layer.
The density of substrate 2 can be about 0.5-2.0 grams/cc.Under normal conditions, the base weight of natural wood pulp fiber is about
It is 20-100 grams/m.
Preferably, the base weight of natural wood pulp fiber is about 30-50 grams/m.
Three layers of composite non-weaving cloth of the present embodiment can be used as a kind of degradable wiping on the basis of above-mentioned material after cutting out
Wiping cloth (rags).
The present embodiment additionally provides the production equipment of three layers of composite non-weaving cloth, including No.1 outer layer feed device 11, base
Material feed device 12, two extra layer feed device 13, spun lacing bracing means 14, hot bellows 15, winding device 16 and defeated lace curtaining.
Wherein, No.1 outer layer feed device 11, substrate feed device 12, two extra layer feed device 13 and spun lacing reinforce dress
Set 14 tops for being set to defeated lace curtaining, No.1 outer layer feed device 11, substrate feed device 12, two extra layer feed device 13,
Spun lacing bracing means 14, hot bellows 15 and winding device 16 are set gradually along the feed direction of defeated lace curtaining.
Preferably, being provided with 22, No. two No.1 negative pressure device 21, substrate negative pressure device negative pressure devices below defeated lace curtaining
23 and spun lacing reinforce negative pressure device 24, No.1 negative pressure device 21 is set to the lower section of No.1 outer layer feed device 11, substrate negative pressure
Device 22 is set to the lower section of substrate feed device 12, and No. two negative pressure devices 23 are set under two extra floor feed device 13
Side, spun lacing reinforce the lower section that negative pressure device 24 is set to spun lacing bracing means 14, No.1 negative pressure device 21, substrate negative pressure device
22, No. two negative pressure devices 23 and spun lacing are reinforced negative pressure device 24 and are set gradually along the feed direction of defeated lace curtaining.
The present embodiment additionally provides the production method of three layers of composite non-weaving cloth, the production of as three layers composite non-weaving cloth
The course of work of equipment, in turn includes the following steps:
Step is 1.: the polylactic acid of mixing, 11 pairs of No.1 outer layer feed device placements are placed in No.1 outer layer feed device 11
Mixed polylactic acid in it uses meltblowing method, successively through screw extruder heating melting, metering pump-metered, spinneret, gas
It is 10-30g/m that grammes per square metre is made after stream drawing-off and cooling2Meltblown fiber web, form it into the first outer layer 1, the first outer layer 1 is made
For meltblown nonwoven layer, the first outer layer 1 is sent under the conveying of defeated lace curtaining to the lower section of substrate feed device 12；
Step 1. in by melt-blown process so that in mixed polylactic acid the first outer layer 1 of formation polylactic acid skin-core structure；
Preferably, meltblown fiber web is fixed on defeated lace curtaining by No.1 negative pressure device 21；Wherein, spinning process uses
Nozzle is core-skin type nozzle, when carrying out heating melt-blown to polylactic acid using screw extruder, after process optimization, is meltblown each work
Skill parameter setting are as follows: extrusion output 8Hz, hot-blast pressure 0.1Mpa, hot blast temperature are 270 DEG C, and receiving distance is 30cm, defeated net
The transmission speed of curtain is 7Hz；Melt blowing machines screw rod each silicon carbide setting such as table 1.
Step is 2.: substrate feed device 12 forms natural wood pulp web using wet forming, while by natural wood pulp fibre
Dimension net is evenly dispersed to substrate 2 on the first outer layer 1, is formed, and substrate 2 is used as wood pulp fiber layer；Substrate 2 exists together with the first outer layer 1
It is sent under the conveying of defeated lace curtaining to the lower section of two extra layer feed device 13；
Preferably, negative pressure gas flow caused by substrate negative pressure device 22 makes natural wood pulp fiber be scattered in the first outer layer 1
On, to form the wood pulp fiber layer of wet-laying；
Preferably, the grammes per square metre of substrate 2 is 20-40g/m2；
Step is 3.: the poly- cream mixed identical with No.1 outer layer feed device 11 is placed in two extra layer feed device 13
Acid, two extra layer feed device 13 use meltblowing method to the mixed polylactic acid being placed in it, pass through online compound side
It is 10-30g/m that successively grammes per square metre, which is made, after screw extruder heating melting, metering pump-metered, spinneret, drawing-off and cooling in formula2
Meltblown fiber web, form it into the top that the second outer layer 3 is covered on substrate 2, the second outer layer 3 is used as meltblown nonwoven layer,
Substrate 2, the first outer layer 1 and the second outer layer 3 are sent under the conveying of defeated lace curtaining to the lower section of spun lacing bracing means 14；Lead in this step
Melt-blown process is crossed, so that mixed polylactic acid forms the skin-core structure of polylactic acid in the second outer layer 3；
Wherein, when carrying out heating melt-blown to polylactic acid using screw extruder, after process optimization, it is meltblown each technique ginseng
Number setting are as follows: extrusion output 8Hz, hot-blast pressure 0.1Mpa, hot blast temperature are 260 DEG C, and receiving distance is 30cm, defeated lace curtaining
Transmission speed is 7Hz.Each silicon carbide of melt blowing machines screw rod is arranged with table 1；It is born caused by same No. two negative pressure devices 23
Pressure gas stream makes to attract the meltblown fibers formed in two extra layer feed device 13 on substrate 2；
Step is 4.: it is pre- that spun lacing bracing means 14 carries out 0.1-0.4Mpa hydraulic pressure to substrate 2, the first outer layer 1 and the second outer layer 3
Spun lacing uses high pressure water needle impact substrate 2, the first outer layer 1 and the second outer layer 3 of 2-4Mpa to carry out pre-reinforcement after pre-reinforcement,
Through substrate 2, the first outer layer 1, the second outer layer 3 and defeated lace curtaining rebound water flow, make substrate 2, the first outer layer 1 and the second outer layer 3 each other
It tangles, meltblown nonwoven layer and has the wood pulp fiber layer centainly to tangle interconnection, wood pulp fiber layer is also partially maintained at
In meltblown nonwoven layer, composite nonwoven material is formed；
It is used to be dehydrated composite nonwoven material preferably, spun lacing reinforces negative pressure device 24；
Step is 5.: composite nonwoven material is admitted to hot bellows 15, and temperature is higher than the fusing point of polylactic acid in hot bellows 15, melts
It is further thermally bonded inside blown non-woven layer of cloth and between meltblown nonwoven layer and wood pulp fiber layer, while can
Dry moisture extra in composite nonwoven material；On the basis of acid fiber by polylactic is skin-core structure, temperature in hot bellows 15
Fusing point higher than polylactic acid be in hot bellows 15 temperature be higher than formed cortex polylactic acid fusing point；
Preferably, the temperature of hot bellows 15 is controlled at 140-160 DEG C；
Step is 6.: it is coiled that composite nonwoven material from hot bellows 15 leaves rolled device 16；
Preferably, the winding tension of up- coiler is 0.2-0.5bar by sophisticated sensor control when winding.
The three layers of composite non-weaving cloth synthesized can not have bits, tear-resistant ability it is strong, can degradable the advantages of.
In the case of above-mentioned optimization experiment parameter, the fibre diameter of the natural wood pulp fiber synthesized is 10-25 μm, is gathered
The fibre diameter of acid fiber is 3-5 μm.
The longitudinal tensile strength of three layers of composite non-weaving cloth is 38.5N, transverse tensile strength 25N, melt-blow nonwoven
The thickness of layer is greater than 0.8 millimeter, i.e. the thickness of the thickness of the first outer layer 1 and the second outer layer 3 is all larger than 0.8 millimeter.At this point, first
The surface density of outer layer 1 and the surface density of the second outer layer 3 are 20-45g/m2。
Comparative example.
Referring to Fig. 1-2.
This comparative example is a kind of three layers of composite non-weaving cloth, the first outer layer 1, substrate 2 including successively layered distribution
With the second outer layer 3.
Wherein, fiber connects between the first outer layer 1 and substrate 2, and fiber connects between substrate 2 and the second outer layer 3.Outside first
The material of layer 1 can be identical with the material of the second outer layer 3, can also be different.Outside the fibre diameter and second of first outer layer 1
The fibre diameter of layer 3 may be the same or different.
Preferably, the material of the first outer layer 1 and the material of the second outer layer 3 are polypropylene (PP), it is corresponding to it, substrate
2 material is natural wood pulp fiber.First outer layer 1 can be carried out stratiform superposition by the different polypropylene fibre of multilayer, outside second
Layer 3 can also carry out stratiform superposition by the different polypropylene fibre of multilayer.As a kind of simplest comparative example, this comparison
The first outer layer 1 is identical with the second outer layer 3 in embodiment, is formed by single-layer polypropylene fiber.
The density of substrate 2 can be about 0.5-2.0 grams/cc.Under normal conditions, the base weight of natural wood pulp fiber is about
It is 20-100 grams/m.
Preferably, the base weight of natural wood pulp fiber is about 30-50 grams/m.
This comparative example additionally provides the production equipment of three layers of composite non-weaving cloth, including No.1 outer layer feed device
11, substrate feed device 12, two extra layer feed device 13, spun lacing bracing means 14, hot bellows 15, winding device 16 and defeated net
Curtain.
Wherein, No.1 outer layer feed device 11, substrate feed device 12, two extra layer feed device 13 and spun lacing reinforce dress
Set 14 tops for being set to defeated lace curtaining, No.1 outer layer feed device 11, substrate feed device 12, two extra layer feed device 13,
Spun lacing bracing means 14, hot bellows 15 and winding device 16 are set gradually along the feed direction of defeated lace curtaining.
Preferably, being provided with 22, No. two No.1 negative pressure device 21, substrate negative pressure device negative pressure devices below defeated lace curtaining
23 and spun lacing reinforce negative pressure device 24, No.1 negative pressure device 21 is set to the lower section of No.1 outer layer feed device 11, substrate negative pressure
Device 22 is set to the lower section of substrate feed device 12, and No. two negative pressure devices 23 are set under two extra floor feed device 13
Side, spun lacing reinforce the lower section that negative pressure device 24 is set to spun lacing bracing means 14, No.1 negative pressure device 21, substrate negative pressure device
22, No. two negative pressure devices 23 and spun lacing are reinforced negative pressure device 24 and are set gradually along the feed direction of defeated lace curtaining.
This comparative example additionally provides the production method of three layers of composite non-weaving cloth, as three layers of composite non-weaving cloth
The course of work of production equipment, in turn includes the following steps:
Step is 1.: being placed with polypropylene in No.1 outer layer feed device 11, No.1 outer layer feed device 11 is to being placed in it
Polypropylene use meltblowing method, successively through screw extruder heating melting, metering pump-metered, spinneret, air drawing and cold
But it is 10-30g/m that grammes per square metre is made afterwards2Meltblown fiber web, form it into the first outer layer 1, the first outer layer 1 is used as melt-blown non-woven
Layer of cloth, the first outer layer 1 are sent under the conveying of defeated lace curtaining to the lower section of substrate feed device 12；
Preferably, meltblown fiber web is fixed on defeated lace curtaining by No.1 negative pressure device 21.It is meltblown each technological parameter setting
Are as follows: extrusion output 8Hz, hot-blast pressure 0.1Mpa, hot blast temperature are 240 DEG C, and receiving distance is 30cm, the transmission speed of defeated lace curtaining
Degree is 7Hz.Melt blowing machines screw rod each silicon carbide setting such as table 2.
Table 2
Step is 2.: substrate feed device 12 forms natural wood pulp web using wet forming, while by natural wood pulp fibre
Dimension net is evenly dispersed to substrate 2 on the first outer layer 1, is formed, and substrate 2 is used as wood pulp fiber layer；Substrate 2 exists together with the first outer layer 1
It is sent under the conveying of defeated lace curtaining to the lower section of two extra layer feed device 13；
Preferably, negative pressure gas flow caused by substrate negative pressure device 22 makes natural wood pulp fiber be scattered in the first outer layer 1
On, to form the wood pulp fiber layer of wet-laying；
Preferably, the grammes per square metre of substrate 2 is 20-40g/m2；
Step is 3.: be placed in two extra layer feed device 13 with identical polypropylene in No.1 outer layer feed device 11, two
Extra layer feed device 13 uses meltblowing method to the polypropylene being placed in it, by online compound mode successively through screw rod
It is 10-30g/m that grammes per square metre, which is made, after extruder heating melting, metering pump-metered, spinneret, drawing-off and cooling2Meltblown fiber web,
The top that the second outer layer 3 is covered on substrate 2 is formed it into, the second outer layer 3 is used as meltblown nonwoven layer, substrate 2, the first outer layer
1 and second outer layer 3 sent under the conveying of defeated lace curtaining to the lower section of spun lacing bracing means 14；
Wherein, when carrying out heating melt-blown to polypropylene using screw extruder, after process optimization, it is meltblown each technique ginseng
Number setting are as follows: extrusion output is 8 Hz, and hot-blast pressure 0.1Mpa, hot blast temperature is 240 DEG C, and receiving distance is 30cm, defeated lace curtaining
Transmission speed be 7Hz；Negative pressure gas flow caused by same No. two negative pressure devices 23 makes will be in two extra floor feed device 13
The meltblown fibers of formation attract on substrate 2；
Step is 4.: spun lacing bracing means 14 carries out 0.1-0.4 Mpa hydraulic pressure to substrate 2, the first outer layer 1 and the second outer layer 3
Pre- spun lacing uses high pressure water needle impact substrate 2, the first outer layer 1 and the second outer layer of 2-4Mpa to carry out pre-reinforcement after pre-reinforcement
3, through substrate 2, the first outer layer 1, the second outer layer 3 and defeated lace curtaining rebound water flow, make substrate 2, the first outer layer 1 and the second outer layer 3 that
This tangles, and meltblown nonwoven layer and has the wood pulp fiber layer centainly to tangle interconnection, and wood pulp fiber layer also partially kept
In meltblown nonwoven layer, composite nonwoven material is formed；
It is used to be dehydrated composite nonwoven material preferably, spun lacing reinforces negative pressure device 24；
Step is 5.: composite nonwoven material is admitted to hot bellows 15, and temperature is higher than polyacrylic fusing point in hot bellows 15, melts
It is further thermally bonded inside blown non-woven layer of cloth and between meltblown nonwoven layer and wood pulp fiber layer, while can
Dry moisture extra in composite nonwoven material；
Preferably, the temperature of hot bellows 15 is controlled at 140-160 DEG C；
Step is 6.: it is coiled that composite nonwoven material from hot bellows 15 leaves rolled device 16；
Preferably, the winding tension of up- coiler is 0.2-0.5bar by sophisticated sensor control when winding.
Three layers of composite non-weaving cloth that this comparison comparative example obtains grammes per square metre be 40g/m2。
Performance ratio now is carried out to three layers of composite non-weaving cloth that embodiment 1, embodiment 2 and comparative example respectively obtain
Compared with.
Degradation test: a certain amount of NaOH, HCl, NaHCO are added in quantitative deionized water3、NaH2PO4Equal reagents are matched
It is respectively 4,7,10 simulated environment liquid at pH, by the Examples 1 and 2 resulting three-layer composite non-weaving cloth of phase homogenous quantities and right
Ratio resulting three-layer composite non-weaving cloth puts into simulated environment liquid and carries out degradation reaction；Timing takes out that processing weighs and to calculate its residual
Remaining weight percent.Concrete outcome such as table 3.
Table 3
Wiping properties test: testing according to standard JIS B9923, three layers of composite non-weaving cloth that Examples 1 and 2 obtain with
Comparative example resulting three-layer composite non-weaving cloth powder amount comparison such as table 4.
Table 4
Water absorbing properties test, is tested according to GBT 24218, and obtain three layers of Examples 1 and 2 and comparative example are compound non-
The water absorbing properties of woven cloths such as table 5.
Table 5
Upper table data can learn that its liquid absorption amount of three layers of composite non-weaving cloth of Examples 1 and 2 preparation is much big
In the liquid absorption amount of three layers of composite non-weaving cloth of comparative example preparation, absolutely prove that three layers of Examples 1 and 2 preparation are multiple
It closes non-woven cloth and has the performance excellent as wiper.
Three layers of composite non-weaving cloth that the above test result shows that the technical solution of Application Example 1 and 2 is prepared can
Degradation, dust removing effects it is good, water absorbing properties are good, thus its clean with separate, cure defend environment protection field have it is biggish potential
Application value.
In addition, it should be noted that, the specific embodiments described in this specification, the shape of parts and components are named
Title etc. can be different, and above content is only to the utility model structure example explanation described in this specification.
All equivalence changes or simple change done according to structure, feature and principle described in the concept of the patent of the utility model, are wrapped
It includes in the protection scope of the utility model patent.Those skilled in the art of the present invention can be to described
Specific embodiment does various modifications or additions or is substituted in a similar manner, without departing from the knot of the utility model
Structure or beyond the scope defined by this claim, all should belong to the protection range of the utility model.
Claims (3)
1. a kind of three layers of composite non-weaving cloth, it is characterised in that: outside the first outer layer, substrate and second including successively layered distribution
Layer, fiber connects between the first outer layer and substrate, and fiber connects between substrate and the second outer layer；The material of first outer layer and
The material of second outer layer is acid fiber by polylactic, and the material of the substrate is natural wood pulp fiber.
2. a kind of production equipment of three layers of composite non-weaving cloth as described in claim 1, it is characterised in that: including No.1 outer layer
Feed device, substrate feed device, two extra layer feed device, spun lacing bracing means, hot bellows, winding device and defeated lace curtaining,
No.1 outer layer feed device, substrate feed device, two extra layer feed device and spun lacing bracing means are set to the upper of defeated lace curtaining
Side, No.1 outer layer feed device, substrate feed device, two extra layer feed device, spun lacing bracing means, hot bellows and winding dress
The feed direction set along defeated lace curtaining is set gradually.
3. the production equipment of three layers of composite non-weaving cloth according to claim 2, it is characterised in that: under the defeated lace curtaining
Side is provided with No.1 negative pressure device, substrate negative pressure device, No. two negative pressure devices and spun lacing and reinforces negative pressure device, No.1 negative pressure device
It is set to the lower section of No.1 outer layer feed device, substrate negative pressure device is set to the lower section of substrate feed device, No. two negative pressure dresses
The lower section for being placed in two extra layer feed device is installed, spun lacing reinforces the lower section that negative pressure device is set to spun lacing bracing means, No.1
Negative pressure device, substrate negative pressure device, No. two negative pressure devices and spun lacing are reinforced negative pressure device and are successively set along the feed direction of defeated lace curtaining
It sets.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108221177A (en) * | 2018-01-30 | 2018-06-29 | 杭州诚品实业有限公司 | A kind of three layers of composite nonwoven material and its production equipment, production method and application |
| CN110983618A (en) * | 2019-12-13 | 2020-04-10 | 苏州多瑈新材料科技有限公司 | Light-weight structure flexible anti-skid non-woven material |
| CN112695459A (en) * | 2020-12-21 | 2021-04-23 | 西诺控股集团有限公司 | Full-automatic non-woven down filling method |
| CN113584714A (en) * | 2021-06-22 | 2021-11-02 | 南通通州江华纺织有限公司 | Wood pulp composite non-woven fabric, production process and production line thereof |
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2018
- 2018-01-30 CN CN201820155683.1U patent/CN208486034U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108221177A (en) * | 2018-01-30 | 2018-06-29 | 杭州诚品实业有限公司 | A kind of three layers of composite nonwoven material and its production equipment, production method and application |
| CN110983618A (en) * | 2019-12-13 | 2020-04-10 | 苏州多瑈新材料科技有限公司 | Light-weight structure flexible anti-skid non-woven material |
| CN110983618B (en) * | 2019-12-13 | 2022-01-18 | 苏州多瑈新材料科技有限公司 | Light-weight structure flexible anti-skid non-woven material |
| CN112695459A (en) * | 2020-12-21 | 2021-04-23 | 西诺控股集团有限公司 | Full-automatic non-woven down filling method |
| CN113584714A (en) * | 2021-06-22 | 2021-11-02 | 南通通州江华纺织有限公司 | Wood pulp composite non-woven fabric, production process and production line thereof |
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