CN101713121B - Bi-component composite fiber elastic non-woven and processing method thereof - Google Patents
Bi-component composite fiber elastic non-woven and processing method thereof Download PDFInfo
- Publication number
- CN101713121B CN101713121B CN2008101671597A CN200810167159A CN101713121B CN 101713121 B CN101713121 B CN 101713121B CN 2008101671597 A CN2008101671597 A CN 2008101671597A CN 200810167159 A CN200810167159 A CN 200810167159A CN 101713121 B CN101713121 B CN 101713121B
- Authority
- CN
- China
- Prior art keywords
- weaving cloth
- fiber
- woven
- elastic
- heat treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention relates to the field of non-wovens, and provides an elastic non-woven and a processing method thereof. Multi-component composite fibers are subjected to opening, mixing, carding, laying, and spunlacing or needle-punching entanglement to prepare the non-woven, and then the non-woven is subjected to heat treatment, wherein the range of spunlacing drying temperature is between 70 and 150DEG C; the temperature of an oven for heat treatment is between 120 and 180DEG C and the time for heat treatment is 0.5 to 3min; and the range of the overfeed rate is 0 to 60 percent. The non-woven has good elasticity, and overcomes the defects that the precious high-elasticity fibers can be adopted only to manufacture the elastic non-woven and the processing technology is complicated in the prior art.
Description
Technical field
The invention belongs to textile industry non-weaving cloth and fabrics for industrial use field, relate to a kind of by bicomponent composite fibre elastic non-woven and processing method thereof.
Background technology
The traditional elastic fabric is generally formed through woven, knitting or nonwovens process by elastomer such as spandex or the yarn or the long filament that contain elastomer, or general fabrics or fiber web and have the fabric of elastomeric polymer or the multiply cloth that grid is composited.Adopt these technology, because expensive raw material price and manufacturing process complexity, so cost is higher.In addition, material non-refractories such as spandex can have a strong impact on the quality of fabric in following process.
When using staple fibre by water thorn processing elastic non-woven, because the entanglement problems of elastic short fiber has not only increased difficulty of processing greatly, and the quality of non-weaving cloth has been produced influence, yielding when causing non-weaving cloth to stretch, recovery capacity is poor especially.
People are in order to remedy the deficiency of spandex performance, in patent application " a kind of elastic polyester fibre and preparation method thereof " (application number 200710070315.3), disclose and a kind ofly two kinds of polymer have been melt extruded compound respectively, obtained behind the bi-component composite fiber HEAT SETTING again, thereby have high elasticity.But what this method obtained is the rubber-like filament, carries out non-weaving cloth later on and adds and be difficult to carry out combing man-hour, and its non-weaving cloth process is difficulty relatively.And this patent application technical scheme can only be applicable to the processing of fiber filament, and can not be fit to the non-weaving cloth processing of staple fibre.
Patent application 00806839 discloses a kind of relating to and has not contained thermoplastic elastomer (TPE) or rubber but the non-woven fabric material of the body performance that demonstrates flexibility in addition.This material has used the polyester of heating after-contraction and a kind of after-contraction degree that heats to be the material preparation non-weaving cloth less than the polyolefin of described polyester, brings elasticity for this material by heating then, and this material is the highest stretches about 30%.This scheme provides a kind of non-elastic fiber process to add the scheme of hot preparation elastic non-woven, but but the non-weaving cloth extensibility that this method obtains is lower, and this material range of application is less.Still can not satisfy the demand of more areas to this elastic non-woven.
In order to improve the performance of fabric, provide a kind of non-weaving cloth of three-decker in patent 02246951, two-layer common fibre web therebetween one deck elastomeric polyurethane fiber grid processes through the water thorn.This non-weaving cloth complex structure, difficulty of processing is big, and owing to the non-weaving cloth elasticity that has adopted double-deck general fibre to cause to make at last is lower.
In order to change this situation, reduce the elastomer processing cost, and improve the quality of elastic non-woven, special proposition the present invention.
Summary of the invention
One of the object of the invention is to provide a kind of bi-component composite fiber elastic non-woven, and this non-weaving cloth has better percentage elongation and response rate.
Another purpose of the present invention is to provide a kind of processing method of bi-component composite fiber elastic non-woven, and this processing adopts not that the fiber of the elastomeric common elongation characteristics of tool is a raw material, and processing method is simple, with low cost.
To achieve these goals, the present invention has adopted following technical scheme:
A kind of bi-component composite fiber elastic non-woven, described non-weaving cloth are that 5～40% fiber is made by percentage elongation, and described fiber is made up of thermal contraction performance different polyester and copolyesters; The elastic extension of described non-weaving cloth broadwise is 30～90%, and the broadwise elastic recovery rate is 40～100%, and the elastic extension of warp-wise is 0～90%, and the warp-wise elastic recovery rate is 40～100%; Wherein being preferably described non-weaving cloth is that 10～30% fiber is made by percentage elongation, the elastic extension of described non-weaving cloth broadwise is 40～85%, the broadwise elastic recovery rate is 50～95%, and the elastic extension of warp-wise is 40～85%, and the warp-wise elastic recovery rate is 50～95%; More preferably described non-weaving cloth is that 15～20% fiber is made by percentage elongation, the elastic extension of described non-weaving cloth broadwise is 60～80%, the broadwise elastic recovery rate is 80～90%, and the elastic extension of warp-wise is 60～80%, and the warp-wise elastic recovery rate is 80～90%.
The fiber of the common percentage elongation here can be available from selling on the market, also can with two kinds of materials by existing composite spinning technology fusion after respectively the spray silk be combined with each other.
The different polyester of thermal contraction performance described here also is different polyester and the copolyesters of using usually in the prior art understood by one of ordinary skill in the art of thermal contraction performance with copolyesters, polyester that the thermal contraction performance as granted patent CN1158414 promptly discloses is different and copolyesters.Be that different polyester of described thermal contraction performance and copolyesters itself it will be apparent to those skilled in the art that.
Described polyester can be that the aromatic hydrocarbons with two carboxyls is polymerized with the alkane with two hydroxyls; Preferred terephthalic acid (TPA), M-phthalic acid or the same linear paraffin of phthalic acid, branched paraffin or cycloalkane glycol are polymerized, and more preferably terephthalic acid (TPA) or phthalic acid are polymerized with ethylene glycol or propylene glycol.
Described copolyesters is to add another comonomer to form when above-mentioned any one polyester of preparation.Described comonomer is preferably: with second kind of different dicarboxylic acids of top described dicarboxylic acids, for example be that straight chain, side chain or ring with 4-12 carbon atom adorned aliphatic dicarboxylic acid (for example succinic acid, glutaric acid, adipic acid, dodecanedioic acid or 1, the 4-cyclohexyl dicarboxylic acid), aromatic dicarboxylic acid (for example M-phthalic acid or 2,6-naphthalene dicarboxylic acids) with 8-12 carbon atom; Or have 3-8 carbon atom straight chain, side chain or annular aliphatic glycol (for example 1, ammediol, 1,2-propylene glycol, 1,4-butanediol, 3-methyl isophthalic acid, 5-pentanediol, 2,2-dimethyl-1, ammediol, 2-methyl isophthalic acid, ammediol or 1,4-cyclohexanediol); Again or have the aliphatic or an aromatic oxide glycol of 4-10 carbon atom.Wherein preferred M-phthalic acid, glutaric acid, adipic acid, 1, ammediol, 1,4-butanediol or 1,4-cyclohexanediol.
The present invention has adopted the fiber of common tensile property to prepare elastic non-woven, has overcome the shortcoming of elastomer combing difficulty in the prior art like this, and this cost of material is cheap relatively a lot.The non-weaving cloth that obtains has good tensile property and response rate.The non-weaving cloth of this high recoverability can be applied to field widely, makes the application of elastic non-woven break through the big restriction of difficulty of processing.
According to foregoing non-weaving cloth, polyester and copolyesters weight ratio are 10:90～90:10 in the described fiber, preferred 30:70～70:30, more preferably 40:60～60:40.
Two kinds of components are curled thereby produced, and have been strengthened elasticity owing to be subjected to the thermal contraction difference in the fiber.Effect was comparatively desirable when the weight ratio of two components reached 10:90～90:10, and the non-weaving cloth elasticity of making when further reaching 30:70～70:30 further strengthens, when ratio is 40:60～60:40, and best results.
According to foregoing non-weaving cloth, described fibre fineness is 1.0～10dtex, is preferably 1.5～3.3dtex, more preferably 2～3dtex; Fibre length is 20～100mm, preferred 38～75mm, more preferably 45～60mm.
The Application Areas of staple fibre is very wide at present, but in non-weaving cloth processing, the processing of elastic short fiber is difficulty especially, and the nonwoven fabric elasticity of making is relatively poor.Scheme of the present invention is particularly suitable for solving the processing problems of staple fibre, and the staple fibre that percentage elongation is lower is easier to nonwoven processing, and the non-weaving cloth of this staple fibre manufacturing has better elastic and feel.
According to foregoing non-weaving cloth, described part of fibrous fracture intensity is 2.0～5cN/dtex, is preferably 3～4cN/dtex, more preferably 3.3～3.7cN/dtex.
The elastic non-woven that application obtains than the low elongation fiber process, fibrous fracture intensity is higher, and non-weaving cloth tensile strength height is difficult for breaking like this.
According to foregoing non-weaving cloth, described fiber is 5～30/25mm of crispation number before being processed into non-weaving cloth, is preferably 8～20/25mm, more preferably 12～16/25mm; Described fiber crispation number after being processed into non-weaving cloth is 30～50/25mm, is preferably 35～45/25mm.
In general, the fiber process non-weaving cloth that crispation number is higher can obtain better elasticity, but high crispation number is also brought difficulty to processing.We select the fiber of low crispation number for use, can reduce difficulty of processing.But then, if crispation number is low excessively, then fiber surface is smooth, between cohesive force very poor, cause spinning equally, become the net processing difficulties.We have found above-mentioned particular range through experiment, can reach best effect.
Foregoing non-weaving cloth, described bicomponent fibers cross section can be two semi-circular shapes arranged side by side or eccentric core sheath structure.
A kind of processing method of non-weaving cloth noted earlier is characterized in that, described method comprises the steps: that fiber through shredding, mixing, combing, lapping, reinforcing, makes non-weaving cloth, and elastic non-woven is made in heat treatment then; Described reinforcing preferred water thorn handles or acupuncture is handled; Described fiber is foregoing fiber.
The present for example such highly elastic fiber of spandex, because percentage elongation is too big, the commercially available non-weaving cloth that has only this long filament of use to make, and do not have staple fibre to make.Adopt bicomponent fiber of the present invention, staple fibre can be incorporated in the processing of high elasticity non-weaving cloth, further improve the quality and the Application Areas of high elasticity non-weaving cloth.
In addition, the non-weaving cloth that water jet process is produced is more soft than other non-weaving cloths by hot consolidation, and is stronger than acupuncture intensity.And low elongation fiber of the present invention can make the method for water thorn, processes soft more, as to have better drapability elastic non-woven.
Wherein said acupuncture, water thorn can carry out according to acupuncture in the prior art, water jet process.
According to foregoing processing method, after being treated to the water thorn, described water thorn also dries, and described bake out temperature scope is 50～200 ℃, is preferably 70～150 ℃, more preferably 80～120 ℃.
The present invention is through groping repeatedly, finds the conventional percentage elongation fiber behind the water thorn heated and takes the said temperature scope further to enhance product performance.And drying time is the time of oven dry after water stings usually at present, is generally 0.1～3 minute.
According to foregoing processing method, described heat treatment is 90～210 ℃ of oven temperatures, is preferably 120～200 ℃, more preferably 130～180 ℃.
It is generally acknowledged that non-weaving cloth can become fragile when temperature was higher hardens, thereby influences the quality of non-weaving cloth.And fiber of the present invention carries out higher temperature heat treatment under certain process conditions, and unexpected discovery gained non-weaving cloth has had extraordinary elasticity, has wider percentage elongation and response rate.And non-weaving cloth does not almost become fragile and hardens.This elastic non-woven can satisfy the demand in multiple field owing to had better elastic and response rate.
According to foregoing processing method, described heat treatment time is 0.2～10min, is preferably 0.5～3min, more preferably 1～2min.
According to foregoing processing method, over feed rate(OFR) is 0～90% during described heat treatment, is preferably 0～60%, more preferably 20～40%.
Over feed rate(OFR)=(feeding speed-output speed)/output speed * 100
When over feed rate(OFR) was lower, fabric vertically can not produce fully, bounce back freely, and when fabric shrink arrived to a certain degree, fabric became extended state from relaxed state, therefore will influence the elastic elongation of finished product.
Content of the present invention has following beneficial effect compared with prior art:
1, cost of material is cheap, has overcome the shortcoming of elastomer combing difficulty in the prior art, and difficulty of processing is low;
2, the non-weaving cloth surfacing that obtains has elastic elongation and elastic restoration ratio preferably;
3, product applications is more extensive.
The specific embodiment
The following examples will be done to explain more specifically to the present invention, but the present invention is not limited only to these embodiment, and these embodiment do not limit the present invention in any way yet equally.
Embodiment 1
The polyester/copolyester composite fibre that is two semi-circular shapes arranged side by side with the cross section of length 51mm, fineness 2dtex, percentage elongation 15%, fracture strength 3cN/dtex is a raw material, through shredding, mixing, combing, lapping, drawing-off, water thorn, oven dry make 60 grams/square metre hydro-entangled non-woven fabric.Bake out temperature is 80 ℃.When the back was put in order, adopting had the baking oven of holder net holding to heat-treat, and cloth does not have clamping in broadwise.Non-weaving cloth with the phase bull trawl quickly speed to be laid in holder online, over feed rate(OFR) 30%.Under 120～160 ℃, the process conditions of 0.5～2.0min, carry out thermal contraction, make 100 grams/square metre the elasticity hydro-entangled non-woven fabric.Fiber is 5/25mm of crispation number before being processed into non-weaving cloth, and crispation number is 30/25mm after being processed into non-weaving cloth.
Wherein polyester is that terephthalic acid (TPA) and ethylene glycol are polymerized according to prior art, and copolyesters is to add 1 again after terephthalic acid (TPA) adds ethylene glycol, and the copolymerization of 4-cyclohexanediol forms.
Embodiment 2
Polyester/copolyester composite fibre with length 38mm, fineness 1.0dtex is a raw material, the composite fibre percentage elongation is 40%, fracture strength 2cN/dtex, through shredding, mixing, combing, lapping, drawing-off, water thorn, oven dry make 70 grams/square metre hydro-entangled non-woven fabric.Bake out temperature is 70 ℃.When arrangement back, adopting has the baking oven of holder net holding to heat-treat, and it is online that non-weaving cloth is laid in holder with the speed of over feed rate(OFR) 10%, and cloth does not have clamping in broadwise.Over feed rate(OFR) 10%, under 130～150 ℃, the process conditions of 2.5～3.0min, make 100 grams/square metre the elasticity hydro-entangled non-woven fabric, this cloth does not have elasticity at warp-wise, broadwise has higher tensile elasticity and elastic recovery rate preferably.Fiber is 30/25mm of crispation number before being processed into non-weaving cloth, and crispation number is 50/25mm after being processed into non-weaving cloth.
Wherein polyester is that terephthalic acid (TPA) and propylene glycol are polymerized according to prior art, and copolyesters is to add the M-phthalic acid copolymerization again behind the terephthalic acid (TPA) adding propylene glycol to form.
Embodiment 3
The polyester/copolyester composite fibre that is shape with the cross section of length 60mm, fineness 3.3dtex is a raw material, and the composite fibre percentage elongation is 5%, fracture strength is 4cN/dtex.Through shredding, mixing, combing, lapping, drawing-off, water thorn, oven dry make 60 grams/square metre hydro-entangled non-woven fabric.Bake out temperature is 120 ℃.When the back was put in order, adopting had the baking oven of holder net holding to heat-treat, and cloth does not have clamping in broadwise.Non-weaving cloth with the phase bull trawl quickly speed to be laid in holder online, over feed rate(OFR) 60%.Under 140～170 ℃, the process conditions of 1.5～2.5min, carry out thermal contraction, make 100 grams/square metre the elasticity hydro-entangled non-woven fabric.Fiber crispation number before being processed into non-weaving cloth is 8/25mm, and crispation number is 35/25mm after being processed into non-weaving cloth.
Wherein polyester is that M-phthalic acid and propylene glycol are polymerized according to prior art, and copolyesters is to add 1 again after M-phthalic acid adds propylene glycol, and the copolymerization of 2-propylene glycol forms.
Embodiment 4
The polyester/copolyester composite fibre that is two semi-circular shapes arranged side by side with the cross section of length 55mm, fineness 3.0dtex is a raw material, and described composite fibre percentage elongation is 20%, fracture strength 3.3cN/dtex.Through shredding, mixing, combing, lapping, drawing-off, water thorn, oven dry make 60 grams/square metre hydro-entangled non-woven fabric.Bake out temperature is 100 ℃.When the back was put in order, employing had multiple roll transmission selvage guide and can heat-treat according to the baking oven of tension force automatic speed regulation, and cloth does not have clamping in broadwise.Non-weaving cloth advances baking oven, low speed output, over feed rate(OFR) 40% at a high speed.Under 140～160 ℃, the process conditions of 1.0～2.0min, carry out thermal contraction, make 100 grams/square metre the elasticity hydro-entangled non-woven fabric.Fiber crispation number before being processed into non-weaving cloth is 20/25mm, and crispation number is 40/25mm after being processed into non-weaving cloth.
Wherein polyester is that M-phthalic acid and propylene glycol are polymerized according to prior art, and copolyesters is to add the succinic acid copolymerization again behind the M-phthalic acid adding propylene glycol to form.
Embodiment 5
The polyester/copolyester composite fibre that is eccentric sheath core shape with the cross section of length 45mm, fineness 10dtex is a raw material, and described composite fibre percentage elongation is 30%, and fracture strength is 3.7cN/dtex.Through shredding, mixing, combing, lapping, drawing-off, water thorn, oven dry make 60 grams/square metre hydro-entangled non-woven fabric.Bake out temperature is 140 ℃.When the back was put in order, adopting had the baking oven of holder net holding to heat-treat, and cloth does not have clamping in broadwise.Non-weaving cloth with the phase bull trawl quickly speed to be laid in holder online, over feed rate(OFR) 50%.Under 190～210 ℃, the process conditions of 0.2～1.0min, carry out thermal contraction, make 100 grams/square metre the elasticity hydro-entangled non-woven fabric.Fiber crispation number before being processed into non-weaving cloth is 12/25mm; Crispation number is 38/25mm after being processed into non-weaving cloth.
Wherein polyester is that phthalic acid and propylene glycol are polymerized according to prior art, and copolyesters is to add 2 again after phthalic acid adds propylene glycol, and the copolymerization of 6-naphthalene dicarboxylic acids forms.
Embodiment 6
Shape polyester/copolyester composite fibre arranged side by side with length 20mm, fineness 4dtex is a raw material, composite fibre percentage elongation 10%, fracture strength 2.5cN/dtex.Through shredding, mixing, combing, lapping, acupuncture make 60 the gram/square metre hydro-entangled non-woven fabric.The density of acupuncture is 80 thorn/cm
2When the back was put in order, adopting had the baking oven of holder net holding to heat-treat, and cloth does not have clamping in broadwise.Non-weaving cloth with the phase bull trawl quickly speed to be laid in holder online, over feed rate(OFR) is 0.Under 90～110 ℃, the process conditions of 8.0～10.0min, carry out thermal contraction, make 120 grams/square metre the elasticity needle fabric.Fiber is 16/25mm of crispation number before being processed into non-weaving cloth, and crispation number is 43/25mm after being processed into non-weaving cloth.
Wherein polyester is phthalic acid and 1, and the 4-cyclohexanediol is polymerized according to prior art, and copolyesters is that phthalic acid adds 1, adds 1 again behind the 4-cyclohexanediol, and the copolymerization of 2-propylene glycol forms.
Embodiment 7
The polyester/copolyester composite fibre that is eccentric sheath core shape with the cross section of length 100mm, fineness 8dtex is a raw material, and described composite fibre percentage elongation is 25%, and fracture strength is 3.5cN/dtex.Through shredding, mixing, combing, lapping, drawing-off, water thorn, oven dry make 60 grams/square metre hydro-entangled non-woven fabric.Bake out temperature is 200 ℃.When the back was put in order, adopting had the baking oven of holder net holding to heat-treat, and cloth does not have clamping in broadwise.Non-weaving cloth with the phase bull trawl quickly speed to be laid in holder online, over feed rate(OFR) 90%.Under 100～110 ℃, the process conditions of 6.0～7.0min, carry out thermal contraction, make 100 grams/square metre the elasticity hydro-entangled non-woven fabric.Fiber is 14/25mm of crispation number before being processed into non-weaving cloth, and crispation number is 44/25mm after being processed into non-weaving cloth.
Wherein polyester is M-phthalic acid and 1, and the 4-cyclohexanediol is polymerized according to prior art, and copolyesters is that M-phthalic acid adds 1, adds 1 again behind the 4-cyclohexanediol, and the copolymerization of 4-butanediol forms.
Embodiment 8
The polyester/copolyester composite fibre that is eccentric sheath core shape with the cross section of length 80mm, fineness 6dtex is a raw material, and described composite fibre percentage elongation is 35%, and fracture strength is 2.3cN/dtex.Through shredding, mixing, combing, lapping, drawing-off, water thorn, oven dry make 60 grams/square metre hydro-entangled non-woven fabric.Bake out temperature is 180 ℃.When the back was put in order, adopting had the baking oven of holder net holding to heat-treat, and cloth does not have clamping in broadwise.Non-weaving cloth with the phase bull trawl quickly speed to be laid in holder online, over feed rate(OFR) 20%.Under 170～190 ℃, the process conditions of 0.4～1.2min, carry out thermal contraction, make 100 grams/square metre the elasticity hydro-entangled non-woven fabric.Fiber is 10/25mm of crispation number before being processed into non-weaving cloth, and crispation number is 38/25mm after being processed into non-weaving cloth.
Wherein polyester is that M-phthalic acid and propylene glycol are polymerized according to prior art, and copolyesters is to add the 2-methyl isophthalic acid again after M-phthalic acid adds propylene glycol, and the ammediol copolymerization forms.
Embodiment 9
The polyester/copolyester composite fibre that is eccentric sheath core shape with the cross section of length 75mm, fineness 5dtex is a raw material, and described composite fibre percentage elongation is 17%, and fracture strength is 2.7cN/dtex.Through shredding, mixing, combing, lapping, drawing-off, water thorn, oven dry make 60 grams/square metre hydro-entangled non-woven fabric.Bake out temperature is 50 ℃.When the back was put in order, adopting had the baking oven of holder net holding to heat-treat, and cloth does not have clamping in broadwise.Non-weaving cloth with the phase bull trawl quickly speed to be laid in holder online, over feed rate(OFR) 20%.Under 160～180 ℃, the process conditions of 2.0～2.5min, carry out thermal contraction, make 80 grams/square metre the elasticity hydro-entangled non-woven fabric.Fiber is 25/25mm of crispation number before being processed into non-weaving cloth, and crispation number is 32/25mm after being processed into non-weaving cloth.
Wherein polyester is that M-phthalic acid and propylene glycol are polymerized according to prior art, and copolyesters is to add the terephthalic acid (TPA) copolymerization again behind the M-phthalic acid adding propylene glycol to form.
Embodiment 10
The polyester/copolyester composite fibre that is eccentric sheath core shape with the cross section of length 65mm, fineness 7dtex is a raw material, and described composite fibre percentage elongation is 12%, and fracture strength is 3.9cN/dtex.Through shredding, mixing, combing, lapping, drawing-off, water thorn, oven dry make 65 grams/square metre hydro-entangled non-woven fabric.Bake out temperature is 90 ℃.When the back was put in order, adopting had the baking oven of holder net holding to heat-treat, and cloth does not have clamping in broadwise.Non-weaving cloth with the phase bull trawl quickly speed to be laid in holder online, over feed rate(OFR) 25%.Under 150～170 ℃, the process conditions of 3.0～3.5min, carry out thermal contraction, make 100 grams/square metre the elasticity hydro-entangled non-woven fabric.Fiber is 18/25mm of crispation number before being processed into non-weaving cloth, and crispation number is 47/25mm after being processed into non-weaving cloth.
Wherein polyester is that terephthalic acid (TPA) and ethylene glycol are polymerized according to prior art, and copolyesters is to add 1 again after terephthalic acid (TPA) adds ethylene glycol, and the copolymerization of 4-cyclohexanediol forms.
Simultaneously, the present invention also provides following test example, for your guidance:
Test example 1
The experimental method of elasticity elongation recovery percentage is in this patent:
Sampling: with the elastic force direction is that length is got three, and effective dimensions is 200mm, and carries out sign.Width is 50mm.
Test method: the two ends of specimen length direction entirely are fastened in the tensometer clamper, move sample to predetermined elongation value (being set at percentage elongation 50%), then anchor clamps are returned to original position with tensometer.Take off sample and left standstill 3 minutes, measure the length L of mark position with Steel Ruler again
2
The calculating of elastic recovery rate:
Wherein: L
0---original length,
L
1---load the length after loading, L
2---discharge the length after loading.
In addition, the present invention also provides Comparative Examples so that non-weaving cloth of the present invention is compared with the common non-weaving cloth of prior art:
Comparative example 1
Claims (4)
1. a bi-component composite fiber elastic non-woven is characterized in that, described non-weaving cloth is that 15～20% fiber is made by percentage elongation, and described fiber is made up of thermal contraction performance different polyester and copolyesters; The elastic extension of described non-weaving cloth broadwise is 60～80%, and the broadwise elastic recovery rate is 80～90%, and the elastic extension of warp-wise is 60～80%, and the warp-wise elastic recovery rate is 80～90%; Described fiber is 12～16/25mm of crispation number before being processed into non-weaving cloth; Described fiber crispation number after being processed into non-weaving cloth is 35～45/25mm; Described fibre fineness is 2～3dtex; Fibre length is 45～60mm; Described fibrous fracture intensity is 3.3～3.7cN/dtex; The preparation of described non-weaving cloth comprises the steps: that fiber through shredding, mixing, combing, lapping, reinforcing, makes non-weaving cloth, and elastic non-woven is made in heat treatment then; Described reinforcing is that the water thorn is handled or acupuncture is handled; Also dry behind the described water thorn, described bake out temperature scope is 80～120 ℃; Described heat treatment is 130～180 ℃ of oven temperatures; Described heat treatment time is 1～2min; Over feed rate(OFR) is 20～50% during described heat treatment; Polyester and copolyesters weight ratio are 10: 90～90: 10 in the described fiber.
2. non-weaving cloth according to claim 1 is characterized in that, polyester and copolyesters weight ratio are 30: 70～70: 30 in the described fiber.
3. non-weaving cloth according to claim 2 is characterized in that, polyester and copolyesters weight ratio are 40: 60～60: 40 in the described fiber.
4. the processing method of any described non-weaving cloth of claim 1～3 is characterized in that, described method comprises the steps: that fiber through shredding, mixing, combing, lapping, reinforcing, makes non-weaving cloth, and elastic non-woven is made in heat treatment then; Described reinforcing is that the water thorn is handled; Also dry behind the described water thorn, described bake out temperature scope is 80～120 ℃; Described heat treatment is 130～180 ℃ of oven temperatures; Described heat treatment time is 1～2min; Over feed rate(OFR) is 20～50% during described heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101671597A CN101713121B (en) | 2008-10-07 | 2008-10-07 | Bi-component composite fiber elastic non-woven and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101671597A CN101713121B (en) | 2008-10-07 | 2008-10-07 | Bi-component composite fiber elastic non-woven and processing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101713121A CN101713121A (en) | 2010-05-26 |
| CN101713121B true CN101713121B (en) | 2011-10-12 |
Family
ID=42417101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101671597A Active CN101713121B (en) | 2008-10-07 | 2008-10-07 | Bi-component composite fiber elastic non-woven and processing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101713121B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106592105A (en) * | 2015-10-20 | 2017-04-26 | 常熟市永得利水刺无纺布有限公司 | Nonwoven fabric preparation method, nonwoven fabric and purpose thereof |
| CN107215011A (en) * | 2017-05-08 | 2017-09-29 | 江苏联宏纺织有限公司 | A kind of compound fabric based on graphene composite fibre and preparation method thereof |
| CN109112723A (en) * | 2018-10-16 | 2019-01-01 | 中原工学院 | A kind of elastomer spunlace non-woven face-cloth base fabric and preparation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158414C (en) * | 1999-04-30 | 2004-07-21 | 金伯利-克拉克环球有限公司 | Stretchable nonwoven material |
| CN101126180A (en) * | 2007-07-26 | 2008-02-20 | 浙江恒逸集团有限公司 | Elastic polyester fibre and preparation method thereof |
| CN100398306C (en) * | 2000-09-29 | 2008-07-02 | 艾森工程有限公司 | Bio-degradable copolyester nonwoven fabric |
-
2008
- 2008-10-07 CN CN2008101671597A patent/CN101713121B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1158414C (en) * | 1999-04-30 | 2004-07-21 | 金伯利-克拉克环球有限公司 | Stretchable nonwoven material |
| CN100398306C (en) * | 2000-09-29 | 2008-07-02 | 艾森工程有限公司 | Bio-degradable copolyester nonwoven fabric |
| CN101126180A (en) * | 2007-07-26 | 2008-02-20 | 浙江恒逸集团有限公司 | Elastic polyester fibre and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 刑声远等.非织造布的生产工艺过程.《非织造布》.化学工业出版社,2003, * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101713121A (en) | 2010-05-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8148279B2 (en) | Staple fiber durable nonwoven fabrics | |
| CN102758311B (en) | Rugged elastic nonwoven fabric and manufacture method thereof | |
| KR930003498B1 (en) | Reinforced non-woven fabric and its production method | |
| RU2668755C2 (en) | Bulk nonwoven material | |
| US20110057346A1 (en) | Art of using regenerated fibers in multi process non-wovens | |
| US20180105965A1 (en) | Nonwoven fabrics and methods of making and using same | |
| CN110699854B (en) | Antistatic non-woven fabric and manufacturing process thereof | |
| EP3773112B1 (en) | Stitchbonded, washable nonwoven towels and method for making | |
| CN110670242B (en) | Antibacterial non-woven fabric and manufacturing process thereof | |
| CA2940019C (en) | Cleaning cloth | |
| CN101956296B (en) | Aramid spunlaced non-woven fabric filter material and manufacturing method thereof | |
| CN101713121B (en) | Bi-component composite fiber elastic non-woven and processing method thereof | |
| KR20160111534A (en) | Microfiber nonwoven composite | |
| US3154462A (en) | Non-woven fabric and process of making same | |
| KR101050831B1 (en) | Cleaning nonwoven fabric and manufacturing method thereof | |
| KR20110034440A (en) | A functional non-woven fabric and manufacturing method thereof | |
| JP7092124B2 (en) | Long-fiber non-woven fabric and filter reinforcement using it | |
| TWI659137B (en) | Composite fabric | |
| US6720278B2 (en) | Method for producing a spun-bonded nonwoven web with improved abrasion resistance | |
| JPS6328960A (en) | High fittness nonwoven fabric and its production | |
| NO150725B (en) | PROCEDURE FOR THE PREPARATION OF SPINN FLOOR | |
| JPS62184118A (en) | Elastic conjugate fiber and production thereof | |
| US20040248493A1 (en) | Renewable imaged nonwoven fabric comprising reconstituted fibers | |
| CN104985884A (en) | Two-step production method of compound wrinkling-style non-woven fabric, and compound wrinkling-style non-woven fabric | |
| JP4663186B2 (en) | Method for producing polylactic acid stereocomplex fiber |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |