CN1297076A - Cross laminated non-woven fabric with middle layer - Google Patents
Cross laminated non-woven fabric with middle layer Download PDFInfo
- Publication number
- CN1297076A CN1297076A CN00132777A CN00132777A CN1297076A CN 1297076 A CN1297076 A CN 1297076A CN 00132777 A CN00132777 A CN 00132777A CN 00132777 A CN00132777 A CN 00132777A CN 1297076 A CN1297076 A CN 1297076A
- Authority
- CN
- China
- Prior art keywords
- nonwoven fabric
- fibril
- intermediate layer
- woven fabric
- laminated non
- 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.)
- Pending
Links
Images
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
- D04H3/002—Inorganic yarns or filaments
- D04H3/004—Glass yarns or filaments
-
- 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
- D04H3/02—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments
- D04H3/04—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of forming fleeces or layers, e.g. reorientation of yarns or filaments in rectilinear paths, e.g. crossing at right angles
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
- D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
-
- 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
- D04H13/00—Other non-woven fabrics
-
- 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
Abstract
A cross laminated nonwoven fabric has an intermediate layer between a first nonwoven fabric and a second nonwoven fabric. The first nonwoven fabric is composed of filaments aligned and stretched in one direction. The second nonwoven fabric is composed of filaments aligned and stretched in a direction which is perpendicular to the aligned direction of the filaments of the first nonwoven fabric. The intermediate layer is made to have a desired property matching with the use of the cross laminated nonwoven fabric.
Description
The present invention relates to cross-laminated nonwoven fabric (cross laminated nonwovenfabric), it has to consist of along direction arranges and first nonwoven fabric of the fibril that stretches and consisting of along second nonwoven fabric of the fibril of arranging with the perpendicular direction of the first nonwoven fabric fibril orientation and stretching.
As common lamination nonwoven fabric, people such as present inventor had proposed a kind of cross-laminated nonwoven fabric, it has the nonwoven fabric of longitudinal stretching, it consists of the fibril of longitudinally arranging and stretching basically, nonwoven fabric with cross directional stretch, it consists of basically along fibril transversely arranged and that stretch, and this direction is perpendicular to the orientation of nonwoven fabric longitudinal stretching fibril.
Compare with spunbond nonwoven fabric, melt spraying non-woven fabrics (melt blown nonwoven fabric) etc., this cross-laminated nonwoven fabric all has high tensile strength with every square metre of small amount of fibers on vertical and horizontal, tensile strength is balance on both direction, this cross-laminated nonwoven fabric is very thin, therefore have favorable uniformity, its surfacing is smooth, is suitable for printing and dyeing, this cross-laminated nonwoven fabric has good textile feel, its surperficial tough and hard wear resistant damage etc.
Some conventional nonwoven fabric have different character, as anti-microbial property, and resistance to water, rust-preventing characteristic, deodorization etc.As the commonsense method that obtains conventional these performances of nonwoven fabric, fiber element not of the same race in certain methods mixes mutually, or it is medium to be impregnated into resin in the nonwoven fabric.As the nonwoven fabric of final products, can overlay on the another kind of nonwoven fabric, obtain perfect performance.
As mentioned above, cross-laminated nonwoven fabric has multiple advantage.Yet according to the application of nonwoven fabric, this cross-laminated nonwoven fabric still expects to have other performance, as anti-microbial property, and resistance to water, rust-preventing characteristic, deodorization etc.
As a kind of cross-laminated nonwoven fabric method of additional properties as mentioned above that obtains, the fibre web that can be considered to have expected performance only is on one side attached to cross laminated non-woven fabric.Yet in this case, demonstrate the one side that makes up nonwoven fabric attached to the fibre web on cross laminated non-woven fabric one side, this can cause comprising that the feature of adhering to the web layer shortcoming becomes very remarkable, and this can eliminate the premium properties of cross laminated non-woven fabric.
On the other hand, expectation improves adhesion strength, and this is the intrinsic problem of structure that acts between longitudinal stretching nonwoven fabric and the cross directional stretch nonwoven fabric.And expectation improves the bulk strength of cross laminated non-woven fabric, and the textile feel of paper shape obtains high volume performance each other, promotes the premium properties of cross laminated non-woven fabric.
The object of the present invention is to provide a kind of cross-laminated nonwoven fabric, it has the performance of expectation, and does not destroy original advantage of cross laminated non-woven fabric.
In order to achieve the above object, comprise a intermediate layer according to cross laminated non-woven fabric of the present invention with expected performance, first nonwoven fabric, it consists of along a direction and arranges and a fibril that stretches and a side that is positioned at the intermediate layer, with second nonwoven fabric, it consists of along the fibril direction and arranges and fibril that stretches and the opposite side that is positioned at the intermediate layer, and makes the orientation of the orientation of this fibril perpendicular to the first nonwoven fabric fibril.
Under above-mentioned arrangement, first and second nonwoven fabric prepare in the following manner: spin out continuous filament yarn by device for spinning, arrange fibril, make fibre web, fibre web then stretches in the orientation of fibril, the extensibility of continuous filament yarn is 3-30 times, and the average fibril diameter of the back continuous filament yarn that stretches is 1-20 μ m, and the tensile strength of the back fibre web that stretches is 8.83 to 883 mN/tex (0.1-10g/d).In description of the invention, according to the quality on the fabric unit are, nonwoven fabric tensile strength value is converted into " DENIER (denier) " (tex), and tensile strength is expressed as the intensity (mN/tex) of per unit tex.The tensile strength that has also provided every DENIER (d) as a reference.
As mentioned above, have following arrangement according to cross laminated non-woven fabric of the present invention, the intermediate layer with desirable properties is clipped between first nonwoven fabric and second nonwoven fabric.Therefore, can keep to derive from the original advantage that comprises that first nonwoven fabric and second nonwoven fabric are arranged according to cross laminated non-woven fabric of the present invention, and be clipped in the character that wherein intermediate layer demonstrates expectation.And, comprise that the arrangement of first nonwoven fabric and second nonwoven fabric provides the tensile strength on the both direction.Therefore, even the intermediate layer lacks enough tensile strength, the nonwoven fabric that accompanies the intermediate layer also can remedy the shortcoming that the intermediate layer lacks tensile strength.Therefore, can be used for the application of the enough tensile strength of needs according to cross laminated non-woven fabric of the present invention.And owing to can protect the intermediate layer not to be exposed to the outside, the intermediate layer can not require outward appearance and surface characteristic.Therefore, can find any application based on this function according to cross laminated non-woven fabric of the present invention.
For example, if the intermediate layer is made by melt spraying non-woven fabrics, will have the function of the filtration that derives from the melt spraying non-woven fabrics fine fibre, resistance to water, antibiotic property according to cross laminated non-woven fabric of the present invention.Particularly,, when as filter, will have high powder collection performance according to cross laminated non-woven fabric of the present invention if melt spraying non-woven fabrics is permanently-polarised (electretized) in this situation.
If the intermediate layer is made by the spunbond nonwoven fabric, will have high volume performance according to cross laminated non-woven fabric of the present invention, this can make according to cross laminated non-woven fabric of the present invention has good fabric feeling.In this situation,, will improve the attaching surface between fabric if the spunbond nonwoven fabric contains low-melting polyester fiber.
And, if the intermediate layer by air permeability and moisture permeability less than 20m
2The fibre web of SPa/ μ g is made, can be as the watertight composition with moisture permeability according to cross laminated non-woven fabric of the present invention.If the Thickness Design of fibre web 50 μ m or higher can be as the core quality structure of fabric according to cross laminated non-woven fabric of the present invention.
The intermediate layer may be not limited to nonwoven fabric, may be made by film.This film can be made by thermoplastic resin, more specifically, is made by the thermoplastic resin that contains adhesive.If this film is made by the thermoplastic resin that contains adhesive, this film is consistent with the fibril that constitutes first nonwoven fabric, second nonwoven fabric.
In the direction of fibril arrangement and stretching is explained, the operating direction of term " longitudinal direction " expression nonwoven fabric preparation, i.e. nonwoven fabric yarn feeding direction, term " horizontal direction " is represented and the perpendicular direction of longitudinal direction, promptly is horizontally through the direction of nonwoven fabric.
Be used to explain the accompanying drawing of embodiment with reference to the present invention, from describe below, can find other purpose of the present invention, feature and advantage apparently.
Fig. 1 is the perspective view according to cross laminated non-woven fabric of the present invention, and the part of intermediate layer and longitudinal stretching nonwoven fabric is cut.
With reference to Fig. 1, shown according to cross laminated non-woven fabric 1 of the present invention and comprised a longitudinal stretching nonwoven 2, it consists of the fibril of longitudinally arranging, one cross directional stretch nonwoven 4, it consists of along transversely arranged fibril, and an intermediate layer 3 that is clipped between longitudinal stretching nonwoven 2 and the cross directional stretch nonwoven 4. Therefore, the orientation of the orientation of longitudinal stretching nonwoven 2 fibrils and cross directional stretch nonwoven 4 fibrils is perpendicular.
Intermediate layer with expected performance, the first nonwoven, it consists of along a direction and arranges and the fibril that stretches and the one side that is positioned at the intermediate layer, with the second nonwoven, it consists of along the fibril direction and arranges and the fibril that stretches and the another side that is positioned at the intermediate layer, makes the orientation of this fibril perpendicular to the orientation of the first nonwoven fibril. Except the cross laminates structural property of nonwoven 2 and 4, intermediate layer 3 has the character of expectation.
As mentioned above, because intermediate layer 3 is between nonwoven 2 and 4, can provide other function except longitudinal stretching nonwoven 2 and cross directional stretch nonwoven 4 cross laminates structural properties according to cross laminated non-woven fabric 1 of the present invention. Owing to have a pair of longitudinal stretching nonwoven 2 and cross directional stretch nonwoven 4 according to cross laminated non-woven fabric 1 of the present invention, intermediate layer 3 can be inserted between longitudinal stretching nonwoven 2 and the cross directional stretch nonwoven 4. This structure can be used as double-decker, and this structure is from the conventional cross laminated non-woven fabric with a pair of nonwoven.
Longitudinal stretching nonwoven 2 and cross directional stretch nonwoven 4 will be described in more detail below.
Japanese patent application publication No. 204767/98 disclosed nonwoven can be used as longitudinal stretching nonwoven 2. Below in conjunction with its preparation method longitudinal stretching nonwoven 2 is described.
In order to prepare longitudinal stretching nonwoven 2, at first, from transversely arranged a plurality of nozzles, extrude the fibril material with drafting tension. Owing to be administered to fibril with drafting tension, fiber is drawing-down and stacked in conveyer. After fibril is extruded from nozzle, rapidly heating. Perhaps, fibril is preserved in the high temperature air of the nozzle that just has been extruded near fibril. The temperature of air need maintain the temperature that enough is higher than the fibril material melting point, and the molecularly oriented of the fibril material that is caused by tension force like this can be as much as possible little. Device as being used for keeping near the air themperature nozzle can use the thermal current that blows out, any heater, thermal protection cylinder etc. from die head. As the method that is used for heat fused fibril material, can use infrared-ray method and laser beam method.
As the method that drafting tension is applied to fibril, can use fusing-blowing head method (hereinafter middle finger MB method). The superiority of MB method be to keep add hot-air temperature at high temperature, to suppress the molecular orientation of fibril material. Yet in common MB method, fibril can be stacking arbitrarily in conveyer. And fibril carries out any heat treatment in conveyer, because thermal current can cause the fibril tensile property to reduce. Therefore, containing the vaporific air stream of moisture that waits is used for transmitting the spun fibril of nozzle that there is certain angle of inclination on the surface with respect to conveyer. Like this, fibril can longitudinally be arranged, suitably cooling.
As the another kind of method that drafting tension is applied to fibril, can introduce the spunbond method (hereinafter middle finger SB method) of narrow sense, also be about to so-called injector or air intake duct and introduce in following a plurality of nozzles. In common SB method, also be rapid cooling after fibril is extruded from nozzle, therefore in fibril, can cause molecularly oriented. And fibril can be stacking arbitrarily in conveyer. In order to improve the arrangement performance of fibril, similar with the situation of introducing the MB method, can introduce any method of keeping near the temperature nozzle with the SB method, directed with Inhibitory molecules. And, cooling blast or vaporific moisture are joined in the inner room of injector, make fibril have suitable tensile property. And expectation will contain fibrillated fluent material and join in the conveyer, and this device has certain angle of inclination with respect to the transmission surface of conveyer.
Like this, because the fibril spinning has on the conveyer at certain angle of inclination to transmitting the surface with respect to conveyer, fibril can suitably be arranged in the vertical. For the mobile phase that makes the fibril material transmission surface tilt for conveyer, nozzle setting can be tilted with respect to conveyer, flowing of fibril can be used any auxiliary liquid flow, so that the direction of fibril Material Flow tilts, conveyer can tilt with respect to the spinning direction of fibril. Can be introduced separately into these methods, also can introduce any combination of several different methods. If produce any liquid stream near nozzle, desirable for liquid can be heated. And if do not produce any liquid stream near nozzle, also desirable for liquid can be heated. This is to have tiny diameter because work as the fibril that makes owing to drawing-off, and molecularly oriented can be suppressed as much as possible.
In MB method and SB method any means, for the mobile phase that makes the fibril material transmission surface tilt for conveyer, can use liquid stream. If liquid stream is provided near conveyer, desirable for liquid stream is the liquid stream of cooling, particularly, and for containing the liquid stream of vaporific moisture. Because liquid stream, spun fibril can cool off rapidly from nozzle, and this can make fibril prevent that crystallization from becoming possibility. If crystallization appears in fibril, the tensile property of fibril will variation. And, if vaporific moisture composition blows to the fibre web that is stacked on the conveyer, be stacked on the upper surface that fibre web on the conveyer can more stably be fixed on conveyer. Therefore, fibril can more stably be spun, and fibril can be arranged more definitely.
As mentioned above, the fibril that piles up on conveyer forms fibre web.If any method can effectively be drawn fibre web from the back side of conveyer,, can recover stable owing to the instability that causes with respect to the conveyer surface tilt.In addition, also can effectively remove heat too much on the fibre web.In this case, the absorption of fibre web is more effective by this way, and suction nozzles is arranged on the straight line that extends on the conveyer width, and development length is very short.In common SB method, any absorption method is all effective.In this situation, using the absorption method is in order to prolong the width of conveyer, makes fibre web in the consistent fibril of homogeneous on unit are random alignment as far as possible.Therefore, in common SB method, use the purpose of absorption method to be different from the purpose of using the absorption method in the present embodiment SB method.And the absorption method of the present embodiment can be removed vaporific moisture component in order to cool off.Therefore, in following stretch process, might reduce the influence that derives from the moisture composition.The tensile property of polyester is very sensitive to moisture.Therefore, if at the moisture skewness of web layer, its tensile property is also just inhomogeneous, cause the tensile strength variation of fibre web after stretch process, so fibre web just can not bear high-speed stretch.
Stretch in the vertical by the fibre web that on conveyer, piles up fibril formation, make fibre web make the nonwoven fabric of longitudinal stretching.By the fibre web that stretches in the vertical, can further improve fibril alignment capabilities in the vertical.Fibril arrangement in the vertical is good more, and when fibre web stretches in the vertical, the possibility that fibril fully stretches is just high more, and the mechanical strength of the fibre web that finally stretches is just big more.If the arrangement of fibril is bad, can only increase distance between fibril by the stretching fibre web so, the possibility that fibril fully stretches will reduce, and can not obtain enough mechanical strengths behind the stretching fibre web.
When fibre web is carried out stretch process, although stretch process is undertaken by one step, stretch process is divided into a plurality of stages usually.The stretch process in a plurality of stages can be performed as follows.The preparatory stage of the phase I of stretch process for after the fibril spinning, carrying out immediately.The second stage of stretch process or the latter half carry out after the phase I continuously, are the Main Stage of carrying out stretch process.Particularly, the present invention is fit to use the short distance drawing process in the phase I of multistage stretch process.
The short distance drawing process is with the pair of rolls placed adjacent, because the difference of this pair roller rotary speed stretches fibre web.Term " short distance " is meant the distance of placing between roller short (starting point of stretching is to the distance between its terminal point).When using the short distance drawing process, the roll gap that expectation effectively stretches is 100mm or lower.Specific to embodiment of the present invention, fibril integral body is arranged in the vertical, but each fibril may some distortion, and the roll gap that must keep effective stretching is enough short, to obtain effective stretching of each fibril.Effectively carry out when short distance stretches, by as the warm-up mill that stretches, heat is delivered to fibre web usually.As the heated air stream of miscellaneous function or the drawing point of infrared-ray heating fibre web.And the thermal source that is effective to the short distance stretching can be a hot water, steam etc.
When using the multistage to stretch, be suitable for the drawing process that second stage stretch process or the latter half stretch, not only can use short distance to stretch, and can use the multiple drawing process (as the aggregation of non-woven fabrics fiber or fibril) that is used for the common stretching of fibre web.For example, possible drawing process can be that roller stretches, and hot water stretches, steam stretching, hot plate stretching, or roll-in.Short distance stretch for second or the latter half stretch and always be not absolutely necessary.This is because each fibril can enough stretch in the vertical in the phase I that stretches.
Below the cross directional stretch nonwoven fabric will be described.As the non-web layer 4 of knitting of cross directional stretch, can use Japanese unexamined patent publication number 36948/91 disclosed fibre web.
For the nonwoven fabric 4 for preparing cross directional stretch, at first form the fibre web that fibril is arranged basically in the horizontal.The formation of the fibre web that fibril is arranged basically in the horizontal can be carried out in the following manner, and by the air flow jetting that air current spray nozzle around the spinning head comes out, the fibril of extruding from spinneret shakes in the horizontal, then fibril is piled up on conveyer.
By using the spinning head air flow jetting of nozzle on every side, the method that shakes fibril in the horizontal is as described below.First group of blow-out nozzle (3-8 plain nozzle) promptly is provided, makes this group nozzle around the spinning head and each air flow jetting of first group of blow-out nozzle, have the circumference composition of around the spinneret cap central shaft, carrying.And, shake in order to guarantee fibril, around first group of blow-out nozzle, provide the second group of blow-out nozzle that consists of a pair of nozzle, the air flow jetting that blows out from second group of blow-out nozzle is run foul of each other in the direction that parallels with the conveyer operating direction.Owing to, rotate from the fibril spirality that spinning head is extruded from the air flow jetting of first group of blow-out nozzle.On the other hand, the air flow jetting that blows out from second group of blow-out nozzle runs foul of each other at the transport path of rotation fibril.Therefore, fibril with the perpendicular transversely diffusion of conveyer operating direction.Because air flow jetting moves the fibril that is rotated motion in the horizontal.Fibril piles up on conveyer as a result, and most of fibrils are arranged in the horizontal.
The fibre web that obtains by said method stretches in the horizontal.Can use the method as the stretching fibre web such as expander system, pulley (pulley) system.The expander system is generally used for the stretching of film etc.Yet this system has certain shortcoming, as needs bigger the place, the rate of extension of the width of product or product material width can not change easily.For the fibre web goods, the width of fibre web should change according to the difference of width.And the rate of extension of fibre web also should change according to the difference of layer of feed stock material thickness.Therefore, when stretching in the horizontal according to fibre web of the present invention, preferred pulley system, even because when operating in system, pulley system also can change the width and the rate of extension of product.
Stretching device based on pulley system comprises a pair of pulley, and it places the two ends of inserting distance on the web width direction, so fixedly fibre web.Stretching device based on pulley system also is included in the belt that stretches on each pulley.Pulley with the web width direction on the symmetrical position of center line place the track that makes the circumferential surface of pulley stretch and disperse.This rotates with same speed pulley.On the other hand, belt on each pulley with certain tension force stretching.The part of belt embeds in the groove of each pulley excircle end (in the zone that expands to pulley room from pulley room apart from the position that narrows down apart from the position that broadens) formation.
Introduce fibre web from the position that the pulley room distance narrows down.Fibre web is fixed by pulley and belt at its width end.When the pulley rotation, fibre web is fixed between pulley and the belt, and the track of dispersing that forms by pulley transmits.Like this, fibre web stretches on width.In the stretch process of fibre web, heating can be passed through hot water, heated air stream etc.
As mentioned above, can obtain the nonwoven fabric 4 of cross directional stretch, it consists of the fibril of arranging in the horizontal and stretching.
The fibril material of the nonwoven fabric 2 of formation longitudinal stretching and the nonwoven fabric 4 of cross directional stretch can be made by thermoplastic resin, as the fluoride resin and the denatured resin of polyethylene, polypropylene, polyester, nylon, polyvinyl chloride, polyurethane and these materials.And, can be applied in resin that uses in the wet type spinning process or the resin that in the dry spinning method, uses, as polyvinyl alcohol type resin, polyacrylonitrile type resin.
Although, be not limited to above-described nonwoven fabric according to first nonwoven fabric 2 of the present invention and second nonwoven fabric to each describes the nonwoven fabric 2 of longitudinal stretching and the nonwoven fabric 4 of cross directional stretch in detail by example in first nonwoven fabric and second nonwoven fabric.Other preferred embodiment of nonwoven fabric can be prepared as follows.Be that device for spinning spins fibril continuously, continuous filament yarn is arranged in one direction, make fibre web thus.Afterwards, fibre web stretches on the direction that continuous filament yarn is arranged, make the extensibility of continuous filament yarn reach 3-30 doubly, the average fibril diameter of continuous filament yarn is 1-20 μ m after the stretch process, and the tensile strength of fibre web is 8.83 to 883mN/tex (1-10g/d) after the stretch process.
The preferred 4-10 of the extensibility of continuous filament yarn times, more preferably 4.5-8 doubly.The preferred 5-18 μ of the average fibril diameter m of continuous filament yarn, more preferably 7-15 μ m after the stretch process.And the preferred 100-300mN/tex of the tensile strength of fibre web (1.1-3.4g/d) after the stretch process, more preferably 130-220mN/tex (1.5-2.5g/d).
In this situation, the fibril of the nonwoven fabric 2 of formation longitudinal stretching and the nonwoven fabric 4 of cross directional stretch is a long filament.Long filament in this case is long in fact.Term " long filament " only refers to that length surpasses the fibril of 100mm.
The specific embodiment of the nonwoven fabric 4 of the nonwoven fabric 2 of longitudinal stretching and cross directional stretch is described below.
For the nonwoven fabric 2 of longitudinal stretching, select polyester as the fibril material.Spin fibril by the fusing blowing head with constant width.Spun fibril piles up on conveyer, to form fibre web.Fibre web stretches with 3-30 extensibility doubly afterwards.Therefore, can obtain to consist of the longitudinal stretching nonwoven fabric of diameter 1-20 μ m fibril.The fibre weight that the longitudinal stretching nonwoven fabric that said method obtains is every square metre is 3-20g/m
2, vertically the stretching percentage on is 7-15%, vertically the tensile strength on is 8.83 to 883mN/tex (1-100g/d).Because fibril is untied, so undetermined percentage elongation and tensile strength in the horizontal.Percentage elongation and tensile strength are the value when fibre web ruptures.Can be used for the description of following example equally.
For the nonwoven fabric 4 of cross directional stretch, also select polyester as the fibril material.In the horizontal fibril is effectively vibrated, fibril piles up the formation fibre web on conveyer.By pulley system cross directional stretch device with doubly stretch in the horizontal fibre web on the conveyer of extensibility 3-30.Therefore, can obtain to consist of the nonwoven fabric of the cross directional stretch of diameter 1-20 μ m fibril.The fibre weight that the cross directional stretch nonwoven fabric that said method obtains is every square metre is 3-20g/m
2, percentage elongation transversely is 7-15%, tensile strength transversely is 8.83 to 883mN/tex (1-100g/d).Because fibril is untied, so undetermined percentage elongation and tensile strength in the vertical.
Can select different materials, as nonwoven fabric, fabric, fabric tissue, films etc. are as intermediate layer 3.
Will be discussed in more detail below intermediate layer 3.
Melt spraying non-woven fabrics
Melt spraying non-woven fabrics is the nonwoven fabric that the superfine fibril of the about 2 μ m of diameter forms.Melt spraying non-woven fabrics has filtration, resistance to water, antibiotic property, anti-tick functions such as (anti-tick).Yet when melt spraying non-woven fabrics forms every square metre when having the fubril amount, it has low tensile strength and surface strength.Therefore, this has limited the application of melt spraying non-woven fabrics.Yet if melt spraying non-woven fabrics is used as the intermediate layer, the shortcoming of melt spraying non-woven fabrics such as tensile strength and surface strength are poor, can remedy by the nonwoven fabric of longitudinal stretching and the nonwoven fabric of cross directional stretch.Therefore, melt spraying non-woven fabrics will not only have enough tensile strength and surface strength as the cross laminated non-woven fabric in intermediate layer, and has the inherent function that derives from melt spraying non-woven fabrics.Particularly, if be permanently-polarised as the melt spraying non-woven fabrics in intermediate layer, the cross laminated non-woven fabric that obtains can be as the filter with high powder collection performance.Permanently-polarised is meant after the nonwoven fabric spinning or in the nonwoven fabric spinning simultaneously, with the non-processing of discharging after the match of knitting fibre web at several ten thousand volts.Like this, electronics can inject fabric, and electronics can be retained in the fabric to semipermanent.
The spunbond nonwoven fabric
If the intermediate layer is made by the spunbond nonwoven fabric, the cross laminated non-woven fabric that obtains will have high volume performance and good fabric feeling.And if the spunbond nonwoven fabric is that low-melting point polyester or binder resin are made by material, the nonwoven fabric of longitudinal stretching and the nonwoven fabric of cross directional stretch can be firmly adhered on the intermediate layer, will increase suture strength.As low-melting-point resin, in polyesters, can select low-melting-point resin with the isophathalic acid copolymerization.In polyamide-based, can select nylon 6 with respect to nylon 66.And, as the example of binder resin, can select hot-melt polyester resin or hot melt polyamide.
The fibril that constitutes the spunbond nonwoven fabric can be to carry out stretch process unlike the nonwoven fabric of the nonwoven fabric of longitudinal stretching and cross directional stretch.Therefore, the molecular orientation performance of the fibril of formation spunbond nonwoven fabric does not have fine perfect, and its softening point is low.Therefore, if the pun-bond nonwoven fabric is inserted between the nonwoven fabric of the nonwoven fabric of longitudinal stretching and cross directional stretch, cotton ginning processing in the middle of laid fabric is used, the spunbond nonwoven fabric is firmly adhered on the nonwoven fabric of the nonwoven fabric of longitudinal stretching and cross directional stretch.And the fibril of spunbond nonwoven fabric is easy to mutual winding, and the connection between fibril has enough elasticity.Therefore, make as the cross laminates Nonwovens in intermediate layer, can disperse to use the power on the line well, so just can improve suture strength if having the spunbond nonwoven fabric.
As mentioned above, if the spunbond nonwoven fabric is used as the intermediate layer, except DIMENSIONAL STABILITY and wear resistance (this conventional nonwoven fabric of being made up of the nonwoven fabric of the nonwoven fabric of vertically going up stretching and cross directional stretch is intrinsic), intensity also makes moderate progress.Therefore, by utilizing the printing performance of surfacing (promptly vertically going up the exposed surface of the nonwoven fabric of the nonwoven fabric that stretches and cross directional stretch), have the spunbond nonwoven fabric and be suitable for dress material as the cross laminates Nonwovens in intermediate layer, packaging material become bag material, tablecloth, internal material, wallpaper etc.
As the spunbond nonwoven fabric that is used for the intermediate layer, expectation is selected and the identical raw material of stretched non-woven cloth material of clamping the intermediate layer.For example, made by olefin material such as PP if clamp the stretched non-woven cloth in intermediate layer, the spunbond nonwoven fabric is also with the preparation of PP section bar material.Made by PET section bar material if clamp the stretched non-woven cloth in intermediate layer, the spunbond nonwoven fabric is also with the preparation of PET section bar material.Like this, stretched non-woven cloth can be adhered on the intermediate layer well.
And the spunbond nonwoven fabric can be made by the material that mixes with low-melting fiber material or jointing material.The spunbond nonwoven fabric can be used core-shell (core-and-case) material, face face (side-by-side) conjugated yarn etc. (for example, referring to Japanese patent application publication No. 182963/90, Japanese patent application publication No. 41762/92, Japanese patent application publication No. 316608/92).These materials have further premium properties, as adhesion property and high volume performance.Particularly, the spunbond nonwoven fabric is made by PET section bar material or nylon type hot melt adhesive resin, and the bond properties of interlayer can suitably improve.
Flush spun nonwoven fabric
Flush spun nonwoven fabric has high tensile strength and tearing strength.Yet this nonwoven fabric is made by polyethylene, and its surface is not suitable for printing.Therefore,, will be coated with sizing material, or carry out corona treatment (corona treatment), to improve the printing performance on surface at fabric face if use this nonwoven fabric.Yet if flush spun nonwoven fabric is used as the intermediate layer of cross laminates Nonwovens, the nonwoven fabric that obtains need not just be coated with or handle and can improve printing performance.In addition, the nonwoven surface that obtains has good textile feel, and intensity improves.
Staple fiber nonwoven fabric
The intermediate layer can be that the nonwoven fabric of staple fibre is made by raw material, as acicular pores (needlepunch) nonwoven fabric or heat bonding (thermal bond) nonwoven fabric.As required, staple fiber nonwoven fabric can be mixed and made into any material, as self-constriction (self-shrinking) fiber, it can shrink by heating, make fiber have high volume performance, binder fiber is as the staple fibre of antibiotic, anti-tick (anti-tick), deodorizing.If aforesaid staple fiber nonwoven fabric as the intermediate layer, can improve the bond properties of stretched non-woven cloth, and final cross laminated non-woven fabric can obtain high volume performance or any special performances.And staple fibre is not limited to chemical fibre, and staple fibre can be by any natural fabric such as wool, cotton thread etc., semisynthetic fibre such as artificial fibre, and inorfil such as glass fibre, ceramic fibres etc. are made.
Two openings (two opening) nonwoven fabric
If two opening nonwoven fabric are as the intermediate layer, final cross laminated non-woven fabric not only have respectively from longitudinal stretching nonwoven fabric and cross directional stretch nonwoven fabric vertically on tensile strength and tensile strength transversely, and have tensile strength obliquely from two opening nonwoven fabric.Therefore can improve suture strength.
Other any material that is different from nonwoven fabric
Except different nonwoven fabric, can select the material as the intermediate layer such as paper, fabric, knitting, film, plastic foamboard.And, can also use and have as magnetic screen, electromagnetic wave shielding performance, resistance to water materials with function.
Particularly, if film is used as the material in intermediate layer, cross laminated non-woven fabric is suitable for the basic unit of adhesive tape.For example, the method that cross laminated non-woven fabric is used for adhesive tape discloses 36795/98 open at Japan Patent.If as adhesive tape, film inserts between longitudinal stretching nonwoven fabric and the cross directional stretch nonwoven fabric, can limit the motion of longitudinal stretching nonwoven fabric fibril, firmly fixes the cross directional stretch nonwoven fabric with cross laminated non-woven fabric.Therefore, can tear cross laminated non-woven fabric at an easy rate in the horizontal.As thin-film material, can select any thermoplastic resin, as polyethylene, polypropylene, polyester.Particularly, because film and fibril are affine, the film that bonding composition carries out copolymerization is more suitable for.
As the method that film is adhered to stretched non-woven cloth, the film as the intermediate layer can be joined between longitudinal stretching nonwoven fabric and the cross directional stretch nonwoven fabric, process together by a pair of warm-up mill.Perhaps, film directly is extruded on the nonwoven fabric of longitudinal stretching, then that the nonwoven fabric of cross directional stretch is placed on it, by warm-up mill compacting, the nonwoven fabric of cross directional stretch is adhered on the film.And film can be for by flooding emulsifying resins on stretched non-woven cloth, the resin bed that dry resin forms.
As mentioned above, can there be various ways in the intermediate layer.If the nonwoven fabric with bond properties and high volume performance is as the intermediate layer, final cross laminated non-woven fabric can have good fabric feeling.Therefore, final cross laminated non-woven fabric can be used for dress material such as Work Clothes or overcoat.Particularly, if the thickness in intermediate layer is 50 μ m or more, cross laminated non-woven fabric can be as the core material of dress material.And if the intermediate layer has anti-microbial property, final cross laminated non-woven fabric can be used for medical application, as the fungi-proofing clothes of operation.
And, if the intermediate layer by air permeability and moisture permeability less than 20m
2The fibre web of sPa/ μ g is made, and so final cross laminated non-woven fabric can be used for the moisture permeability watertight composition, is used to be equipped with spin the house outer wall that coagulation structure needs water proofing property.In this situation, intermediate layer itself just can be a sandwich construction.As required, sandwich construction is by having the porous membrane of a plurality of apertures, the flush spun Nonwovens that one deck closely compresses, and combinations such as one deck paper are made.But moisture permeability watertight composition requires not only have the moisture permeability, and has certain intensity.Yet the intensity of requirement can be guaranteed by longitudinal stretching nonwoven fabric and cross directional stretch nonwoven fabric.Therefore, even the intermediate layer is made by intensity low paper or any porous membrane, as long as the moisture permeability of satisfying the demand in the intermediate layer, cross laminated non-woven fabric also can be used as the moisture permeability watertight composition.
Longitudinal stretching nonwoven fabric, cross directional stretch nonwoven fabric and intermediate layer have been described.The method that stacks these fabrics and layer provides as follows.Based on the cross directional stretch nonwoven fabric being overlayed in the processing on the longitudinal stretching nonwoven fabric of conventional preparation method, around roller, add the intermediate layer, so that insert between longitudinal stretching nonwoven fabric and the cross directional stretch nonwoven fabric in the intermediate layer.Particularly, if the intermediate layer is a nonwoven fabric, the intermediate layer does not need prepared beforehand.Can use longitudinal stretching nonwoven fabric and cross directional stretch nonwoven fabric are stacked any spinning process with bonding processing, with intermediate layer directly preparation between longitudinal stretching nonwoven fabric and cross directional stretch nonwoven fabric.
And, as the method that stacks longitudinal stretching nonwoven fabric, cross directional stretch nonwoven fabric and intermediate layer, can select to use the hot pressing processing of hot scoring roller or calender roll, ultrasonic bonds, the point powder adhesive (powder dot bonding) of application jointing material, hot melt adhesive, the point of emulsified state is in conjunction with (dot-bonding), cross laminated non-woven fabric use by the thermal current of nonwoven fabric through air bonding (through-air bonding), water sprays bonding, the pin hole method is sewed up adhesive bonding method etc.According to the difference that final cross laminated non-woven fabric is used, these methods can be used separately, or use with compound mode.
As required, can carry out further any processing according to cross laminated non-woven fabric of the present invention, as heat treatment, thermal contraction is handled, Steam Heating processing etc., and cross laminated non-woven fabric can have the better character as final products like this.Particularly, carry out the thermal contraction processing when the intermediate layer and make the intermediate layer have high volume character, this heat treatment process just is absolutely necessary.
In above-mentioned embodiment was described, the situation that longitudinal stretching nonwoven fabric and cross directional stretch nonwoven fabric is used separately as first nonwoven fabric and second nonwoven fabric was described.But first nonwoven fabric and second nonwoven fabric can as long as stretched non-woven cloth stacks mutually, intersect at a right angle the orientation that constitutes the Nonwovens fibril mutually only by a kind of the making in longitudinal stretching nonwoven fabric and the cross directional stretch nonwoven fabric.
Specifically describe inventive embodiments and comparing embodiment below.
The longitudinal stretching nonwoven fabric is prepared as follows.Beginning is limited in the fibril that 0.62 mylar is made with viscosity IV value, by using molten spinning (melt-blow spinning) device that blows, makes fibril arrange the formation fibre web in the vertical.Then with the fibre web that obtains in the vertical with 5.5 times of stretchings of extensibility.Therefore, obtaining every square metre fibre weight is 10g/m
2The longitudinal stretching nonwoven fabric.The cross directional stretch nonwoven fabric is prepared as follows.Beginning is limited in the fibril that 0.55 mylar is made with viscosity IV value, by using jet spinning (spray spinning) device, makes fibril pile up the formation fibre web in the horizontal.Then with the fibre web that obtains in the horizontal with 5.7 times of stretchings of extensibility.Therefore, obtaining every square metre fibre weight is 10g/m
2The longitudinal stretching nonwoven fabric.The spunbond nonwoven fabric MARIX09123WSO (trade name) of the raw material in intermediate layer for providing by UNITIKA.LTD..Every square metre the fibre weight in intermediate layer is 12g/m
2The nonwoven fabric in intermediate layer is inserted between longitudinal stretching nonwoven fabric and the cross directional stretch nonwoven fabric.By the scoring roller that is heated to 200 ℃ they are bonded together.Like this, obtain cross laminated non-woven fabric.Every square metre fibre weight of cross laminated non-woven fabric is 34g/m
2
The cross laminated non-woven fabric that obtains is measured tensile strength, percentage elongation, suture strength.For the mensuration of percentage elongation, measure the elongation of cross laminated non-woven fabric on the vertical and horizontal both direction.For tensile strength, cross laminated non-woven fabric is made the sample strip that width is 50mm, sample strip under rate of extension 100mm/min condition vertically, laterally and the stretching obliquely of 45.At this moment, about the tensile strength measurement data obliquely of 45,, make data normalization with the intensity data that obtains fibre weight divided by every square metre.Like this, the deal with data of the ionization meter obliquely of 45 has comparativity, can be used as the reference of cross laminated non-woven fabric adhesive power.And the method for mensuration suture strength is carried out according to the assay method of the sewings suture strength of JISL1093 regulation.According to measurement standard, prop up fibril (spanthread) by using #80, with every centimetre 5 unit gap, with sample strip with vertically vertical direction on finally sew up.
Inventive embodiments 2
The inventive embodiments 2 of cross laminated non-woven fabric is undertaken by the method identical with inventive embodiments 1, except the raw material in intermediate layer become the CO. by TOYOBO, the spunbond nonwoven fabric of the commodity that LTD. provides ECULE by name.The mensuration project that is used to estimate inventive embodiments 2 is identical with inventive embodiments 1.Fibre weight as every square metre of the nonwoven fabric in intermediate layer is 50g/m
2, every square metre of fibre weight of the cross laminated non-woven fabric that obtains is 71g/m
2
Inventive embodiments 3
In embodiments of the present invention, preparation longitudinal stretching nonwoven fabric and cross directional stretch nonwoven fabric, making its every square metre fibre weight is 20g/m
2The raw material in intermediate layer are for the spunbond nonwoven fabric that the commodity that provided by Kureha Ltd. are called the DYNAC polyamide type binder resin of LSN0008 is provided.The every square metre of fibre weight in intermediate layer is 8g/m
2Cross laminated non-woven fabric prepares according to mode same as the previously described embodiments, and except tack temperature is 180 ℃, the mensuration project that is used to estimate inventive embodiments 3 is identical with inventive embodiments 1.Every square metre of fibre weight of the cross laminated non-woven fabric that obtains is 48g/m
2
The inventive embodiments 4 of cross laminated non-woven fabric is undertaken by the method identical with inventive embodiments 3, becomes the spunbond nonwoven fabric of the polyester-type binder resin of the commodity G0015 by name that application provides by Kureha Ltd. except the raw material in intermediate layer.The mensuration project that is used to estimate inventive embodiments 4 is identical with inventive embodiments 1.Fibre weight as every square metre of the nonwoven fabric in intermediate layer is 15g/m
2, every square metre of fibre weight of the cross laminated non-woven fabric that obtains is 53g/m
2
Inventive embodiments 5
The longitudinal stretching nonwoven fabric of inventive embodiments 5 is identical with inventive embodiments 1 with the cross directional stretch nonwoven fabric, except every square metre of fibre weight is set at 20g/m
2As the raw material in intermediate layer, the film that the REXPEARL ET-184M that can use is provided by JAPAN POLYOLEFINS CO. makes is 50 μ m as long as measure thickness by T-die.The method that stacks fabric and layer then by temperature is 30 ℃ chill roll compacting for being the knobbling rolls compacting that 130 ℃ of linear loads are 294N/cm by temperature.Obtain the cross laminated non-woven fabric of film like this as the intermediate layer.Every square metre of fibre weight of the cross laminated non-woven fabric that obtains is 75g/m
2
Identical with inventive embodiments 1-4 except the test of tensile strength and stretching, the cross laminated non-woven fabric of inventive embodiments 5 is also torn test, uses the two type test pieces of tearing test based on the Elmendorf of JISK7128-1991.
Inventive embodiments 6
The inventive embodiments 6 of cross laminated non-woven fabric is prepared by the method identical with inventive embodiments 5, except the film that the HAIMRAN that provided by MITSUI CHEMICALS Ltd. makes is provided for the raw material in intermediate layer, it is 50 μ m that film is measured thickness by T-die.The mensuration that is used to estimate inventive embodiments 6 is identical with inventive embodiments 5.Every square metre of fibre weight of the cross laminated non-woven fabric that obtains is 86g/m
2
Inventive embodiments 7
The inventive embodiments 7 of cross laminated non-woven fabric is prepared by the method identical with inventive embodiments 5, except the film that the thermoplastic elastomer FUREKURON M-type that provided by Nippon Synthetic ChemicalIndustry Co.Ltd. is made is provided for the raw material in intermediate layer, measuring thickness by T-die is that the longitudinal stretching nonwoven fabric of 50 μ m is made, and fabric and film application of temperature are 150 ℃ knobbling rolls compacting.Every square metre of fibre weight of the cross laminated non-woven fabric that obtains is 86g/m
2Film tensile strength in the vertical as the intermediate layer is 20N/5cm.
Identical with inventive embodiments 1-6 except the test of tensile strength and stretching, the cross laminated non-woven fabric of inventive embodiments 7 also carries out the test of moisture permeability according to JISZ0208, carries out waterproof test according to JISL1092.
Comparing embodiment 1
Preparation has inventive embodiments 1 longitudinal stretching nonwoven fabric and cross directional stretch nonwoven fabric, does not have the cross laminated non-woven fabric in intermediate layer.Every square metre of fibre weight of the cross laminated non-woven fabric that obtains is 20g/m
2
Comparing embodiment 2
Preparation has inventive embodiments 2 longitudinal stretching nonwoven fabric and cross directional stretch nonwoven fabric, does not have the cross laminated non-woven fabric in intermediate layer.Every square metre of fibre weight of the cross laminated non-woven fabric that obtains is 40g/m
2
Comparing embodiment 3
Preparation has inventive embodiments 5 longitudinal stretching nonwoven fabric and cross directional stretch nonwoven fabric, does not have the cross laminated non-woven fabric in intermediate layer.For the method that stacks fabric, do not use the calender method, and use the scoring roller method.And the temperature of carrying out the scoring roller method is 200 ℃.Every square metre of fibre weight of the cross laminated non-woven fabric that obtains is 30g/m
2
Table 1 has shown the result of the test of inventive embodiments 1-7 and comparing embodiment 1-3.
Table 1
Note 1: the oblique tensile strength unit of 45 is N/gm
2
| Tensile strength (N/5cm) note 1 | Extensibility (%) | Suture strength | Tearing strength | The moisture permeability | Water proofing property (Pa) | ||||
| Vertically | Laterally | ????45° | Vertically | Laterally | |||||
| Inventive embodiments 1 | ????137 | ????88 | ????2.06 | ????11 | ????10 | ????49 | ????- | ?????- | ?????- |
| Inventive embodiments 2 | ????225 | ????127 | ????1.86 | ????14 | ????13 | ????69 | ????- | ?????- | ?????- |
| Inventive embodiments 3 | ????216 | ????147 | ????3.14 | ????20 | ????22 | ????69 | ????- | ?????- | ?????- |
| Inventive embodiments 4 | ????216 | ????157 | ????3.23 | ????24 | ????22 | ????69 | ????- | ?????- | ?????- |
| Inventive embodiments 5 | ????157 | ????186 | ????1.96 | ????17 | ????30 | ????- | ????49 | ?????- | ?????- |
| Inventive embodiments 6 | ????157 | ????206 | ????1.96 | ????18 | ????29 | ????- | ????29 | ?????- | ?????- |
| Inventive embodiments 7 | ????157 | ????206 | ????1.96 | ????18 | ????20 | ????- | ????- | ????1800 | ????19.6 |
| Comparing embodiment 1 | ????78 | ????49 | ????1.47 | ????9 | ????7 | ????20 | ????- | ?????- | ?????- |
| Comparing embodiment 2 | ????196 | ????137 | ????1.86 | ????9 | ????7 | ????39 | ????- | ?????- | ?????- |
| Comparing embodiment 3 | ????118 | ????137 | ????1.57 | ????7 | ????7 | ????- | ????17 | ?????- | ?????- |
The data of table 1 experimental result have shown following message.
Compare with comparing embodiment 1, inventive embodiments 1 has the tensile strength on the higher vertical and horizontal, bonding strength between fabric, and suture strength, except surface property, outside printing performance and good surface appearance, this be have longitudinal stretching nonwoven fabric and cross directional stretch nonwoven fabric do not have the intermediate layer conventional cross laminates Nonwovens intrinsic character.Compare with comparing embodiment 2, inventive embodiments 2 has the tensile strength on the higher vertical and horizontal, the bonding strength between fabric, and suture strength.And inventive embodiments 3 and 4 also improves.Inventive embodiments 5 and 6 makes moderate progress on strength character, their easier tearing.Inventive embodiments 7 not only tensile strength improves, and water proofing property and moisture permeability all increase.
Although detail display and described the preferred embodiments of the invention should be thought different change and revise the spirit and scope that do not depart from appended claim.
Claims (11)
1. cross laminated non-woven fabric is characterized in that comprising:
Intermediate layer with expected performance;
First nonwoven fabric, it is made up of the fibril of arranging in one direction and stretch, and places a side in described intermediate layer;
Second nonwoven fabric, it is made up of the fibril of arranging in one direction and stretch, and places the opposite side in described intermediate layer, and makes the orientation of the orientation of this fibril perpendicular to the described first nonwoven fabric fibril.
2. according to the cross laminated non-woven fabric of claim 1, it is characterized in that described first and second nonwoven fabric are for to spin out the fibre web that continuous filament yarn is made by device for spinning, make continuous filament yarn fibre web vertically on arrange, on the direction that continuous filament yarn is arranged, stretch then, wherein the extensibility of continuous filament yarn is 3-30 times, the average fibril diameter of back continuous filament yarn of stretching is 1-20 μ m, and the tensile strength of the back fibre web that stretches is 8.83 to 883mN/tex.
3. according to the cross laminated non-woven fabric of claim 1, it is characterized in that described intermediate layer made by melt spraying non-woven fabrics.
4. according to the cross laminated non-woven fabric of claim 3, it is characterized in that described melt spraying non-woven fabrics is a permanently-polarised.
5. according to the cross laminated non-woven fabric of claim 1, it is characterized in that described intermediate layer made by the spunbond nonwoven fabric.
6. according to the cross laminated non-woven fabric of claim 5, it is characterized in that described spunbond nonwoven fabric contains low-melting polyester fiber.
7. according to the cross laminated non-woven fabric of claim 1, it is characterized in that described intermediate layer by air permeability and moisture permeability less than 20m
2The fibre web of sPa/ μ g is made.
8. according to the cross laminated non-woven fabric of claim 1, it is characterized in that described intermediate layer makes thickness 50 μ m.
9. according to the cross laminated non-woven fabric of claim 1, it is characterized in that described intermediate layer is a film.
10. according to the cross laminated non-woven fabric of claim 9, it is characterized in that described film made by thermoplastic resin.
11., it is characterized in that described film contains adhesive ingredients according to the cross laminated non-woven fabric of claim 10.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32684199A JP2001146673A (en) | 1999-11-17 | 1999-11-17 | Orthogonally laminated nonwoven fabric |
| JP326841/1999 | 1999-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1297076A true CN1297076A (en) | 2001-05-30 |
Family
ID=18192320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00132777A Pending CN1297076A (en) | 1999-11-17 | 2000-11-17 | Cross laminated non-woven fabric with middle layer |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1101855A1 (en) |
| JP (1) | JP2001146673A (en) |
| KR (1) | KR20010051790A (en) |
| CN (1) | CN1297076A (en) |
| TW (1) | TW490524B (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102431229A (en) * | 2011-09-08 | 2012-05-02 | 浙江弘扬无纺新材料有限公司 | Non-woven with online added warp and weft yarn and production method thereof |
| CN102505352A (en) * | 2011-11-02 | 2012-06-20 | 成都彩虹环保科技有限公司 | Multi-layer non-woven fabric |
| CN102629502A (en) * | 2011-02-08 | 2012-08-08 | 日立电线精密技术株式会社 | Flexible flat cable |
| CN104254647A (en) * | 2012-02-22 | 2014-12-31 | 宝洁公司 | Fibrous structures and methods for making same |
| CN104271826A (en) * | 2012-03-26 | 2015-01-07 | 加拿大圣戈班爱德福思有限公司 | Off-angle laid scrims |
| CN104936792A (en) * | 2013-01-30 | 2015-09-23 | 惠普发展公司，有限责任合伙企业 | Printable medium |
| CN105970480A (en) * | 2016-07-08 | 2016-09-28 | 阜南县财亿园林工艺品有限公司 | Method for preparing basic material - fiber mixed non-woven fabric |
| CN106065091A (en) * | 2016-07-08 | 2016-11-02 | 阜南县财亿园林工艺品有限公司 | A kind of preparation method of metope compound nonwoven cloth |
| CN106192211A (en) * | 2016-07-08 | 2016-12-07 | 阜南县财亿园林工艺品有限公司 | A kind of preparation method of porous fibre non-woven fabrics |
| CN106189031A (en) * | 2016-07-08 | 2016-12-07 | 阜南县财亿园林工艺品有限公司 | A kind of preparation method of the non-woven fabrics of multilamellar stretch-proof |
| CN106189030A (en) * | 2016-07-08 | 2016-12-07 | 阜南县财亿园林工艺品有限公司 | A kind of preparation method of short time water proof nonwoven cloth |
| CN108442035A (en) * | 2018-04-28 | 2018-08-24 | 阳光卫生医疗新材料江阴有限公司 | A kind of preparation method and non-woven cloth of unidirectional micro non-woven cloth |
| CN109487440A (en) * | 2018-12-29 | 2019-03-19 | 深圳全棉时代科技有限公司 | A kind of the combination device for layering and combination lapping technique of thin sheets of nonwoven cloth |
| CN113103699A (en) * | 2021-04-06 | 2021-07-13 | 泉州市成意纺织科技有限公司 | Soft and smooth elastic non-woven fabric and manufacturing method thereof |
| CN113737389A (en) * | 2021-09-29 | 2021-12-03 | 礼德滤材科技(苏州)有限责任公司 | Three-carding spunlace non-woven fabric with direct lapping function and preparation method thereof |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8246882B2 (en) | 2003-05-02 | 2012-08-21 | The Boeing Company | Methods and preforms for forming composite members with interlayers formed of nonwoven, continuous materials |
| US20040219855A1 (en) * | 2003-05-02 | 2004-11-04 | Tsotsis Thomas K. | Highly porous interlayers to toughen liquid-molded fabric-based composites |
| AU2003248495A1 (en) * | 2003-07-15 | 2005-01-28 | Fusion Tech Textiles Corporation | Multi-layer fabric provided with functional cloth between cloth layers |
| DE102004008103A1 (en) * | 2004-02-16 | 2005-09-01 | Sandler Ag | Decorative wall panel for indoor and outdoor use has outer fleece sheet bonded by flexible adhesive to inner fleece substrate |
| DE102005025550A1 (en) | 2005-06-01 | 2006-12-07 | Carl Freudenberg Kg | Nonwoven fabric fixable insert for use in the textile industry |
| US20130029090A1 (en) * | 2011-07-25 | 2013-01-31 | Kenneth Cheng | Biaxial stretchable elastic laminate |
| CN104960291A (en) * | 2015-07-10 | 2015-10-07 | 常熟璟杰无纺制品有限公司 | Compound non-woven fabric |
| CN106113877A (en) * | 2016-07-08 | 2016-11-16 | 阜南县财亿园林工艺品有限公司 | A kind of preparation method of delicate fragrance environment-friendly non-woven fabric |
| CN106183346A (en) * | 2016-07-08 | 2016-12-07 | 阜南县财亿园林工艺品有限公司 | A kind of preparation method of the non-woven fabrics of surface easy to clean |
| CN106113770A (en) * | 2016-07-08 | 2016-11-16 | 阜南县财亿园林工艺品有限公司 | A kind of preparation method of environmental protection starch compound nonwoven cloth |
| CN106113847A (en) * | 2016-07-08 | 2016-11-16 | 阜南县财亿园林工艺品有限公司 | A kind of preparation method of anti-fracture non-woven fabrics |
| CN106079735A (en) * | 2016-08-15 | 2016-11-09 | 常熟市心无纺制品有限公司 | A kind of high moisture-inhibiting non-woven fabrics binder |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3616037A (en) * | 1969-08-08 | 1971-10-26 | Kimberly Clark Co | Method and apparatus for crosslaying web materials |
| US4298649A (en) * | 1980-01-07 | 1981-11-03 | Kimberly-Clark Corporation | Nonwoven disposable wiper |
| DE68920133T2 (en) * | 1989-01-27 | 1995-05-04 | Nippon Petrochemicals Co Ltd | Cross-laid, stretched nonwoven fabric and process for making the same. |
| US5834386A (en) * | 1994-06-27 | 1998-11-10 | Kimberly-Clark Worldwide, Inc. | Nonwoven barrier |
-
1999
- 1999-11-17 JP JP32684199A patent/JP2001146673A/en active Pending
-
2000
- 2000-11-14 EP EP00403166A patent/EP1101855A1/en not_active Withdrawn
- 2000-11-16 TW TW089124338A patent/TW490524B/en not_active IP Right Cessation
- 2000-11-17 KR KR1020000068642A patent/KR20010051790A/en not_active Application Discontinuation
- 2000-11-17 CN CN00132777A patent/CN1297076A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102629502A (en) * | 2011-02-08 | 2012-08-08 | 日立电线精密技术株式会社 | Flexible flat cable |
| CN102629502B (en) * | 2011-02-08 | 2016-03-02 | 日立金属株式会社 | Flexible flat cable |
| CN102431229A (en) * | 2011-09-08 | 2012-05-02 | 浙江弘扬无纺新材料有限公司 | Non-woven with online added warp and weft yarn and production method thereof |
| CN102431229B (en) * | 2011-09-08 | 2014-04-30 | 浙江弘扬无纺新材料有限公司 | Non-woven with online added warp and weft yarn and production method thereof |
| CN102505352A (en) * | 2011-11-02 | 2012-06-20 | 成都彩虹环保科技有限公司 | Multi-layer non-woven fabric |
| CN104254647A (en) * | 2012-02-22 | 2014-12-31 | 宝洁公司 | Fibrous structures and methods for making same |
| CN104271826A (en) * | 2012-03-26 | 2015-01-07 | 加拿大圣戈班爱德福思有限公司 | Off-angle laid scrims |
| CN104936792A (en) * | 2013-01-30 | 2015-09-23 | 惠普发展公司，有限责任合伙企业 | Printable medium |
| CN105970480A (en) * | 2016-07-08 | 2016-09-28 | 阜南县财亿园林工艺品有限公司 | Method for preparing basic material - fiber mixed non-woven fabric |
| CN106065091A (en) * | 2016-07-08 | 2016-11-02 | 阜南县财亿园林工艺品有限公司 | A kind of preparation method of metope compound nonwoven cloth |
| CN106192211A (en) * | 2016-07-08 | 2016-12-07 | 阜南县财亿园林工艺品有限公司 | A kind of preparation method of porous fibre non-woven fabrics |
| CN106189031A (en) * | 2016-07-08 | 2016-12-07 | 阜南县财亿园林工艺品有限公司 | A kind of preparation method of the non-woven fabrics of multilamellar stretch-proof |
| CN106189030A (en) * | 2016-07-08 | 2016-12-07 | 阜南县财亿园林工艺品有限公司 | A kind of preparation method of short time water proof nonwoven cloth |
| CN108442035A (en) * | 2018-04-28 | 2018-08-24 | 阳光卫生医疗新材料江阴有限公司 | A kind of preparation method and non-woven cloth of unidirectional micro non-woven cloth |
| CN109487440A (en) * | 2018-12-29 | 2019-03-19 | 深圳全棉时代科技有限公司 | A kind of the combination device for layering and combination lapping technique of thin sheets of nonwoven cloth |
| CN113103699A (en) * | 2021-04-06 | 2021-07-13 | 泉州市成意纺织科技有限公司 | Soft and smooth elastic non-woven fabric and manufacturing method thereof |
| CN113737389A (en) * | 2021-09-29 | 2021-12-03 | 礼德滤材科技(苏州)有限责任公司 | Three-carding spunlace non-woven fabric with direct lapping function and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20010051790A (en) | 2001-06-25 |
| EP1101855A1 (en) | 2001-05-23 |
| TW490524B (en) | 2002-06-11 |
| JP2001146673A (en) | 2001-05-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1297076A (en) | Cross laminated non-woven fabric with middle layer | |
| CN1131349C (en) | Entangled nonwoven fabrics and methods for forming same | |
| JP4486816B2 (en) | Stretchable nonwoven web and method therefor | |
| US20170254005A1 (en) | Forcespinning of fibers and filaments | |
| EP0814189A1 (en) | Bulky nonwoven fabric and method for producing the same | |
| KR101758204B1 (en) | Twisted Composite Yarn Based Nanofibers and Method for Manufacturing the Same | |
| EP2082082B1 (en) | Multi-component fibers containing high chain-length polyamides | |
| JP2003268667A (en) | Multiple component spun-bonded web and laminate thereof | |
| CN1826442A (en) | Multiple component spunbond web | |
| RU2429318C2 (en) | High-strength light stitching warp for tafting and method of its production | |
| US20040132376A1 (en) | Biocomponent fibers and textiles made therefrom | |
| US20170298548A1 (en) | Bulk fill material | |
| US20030045196A1 (en) | Composite nonwoven fabric having high strength and superior printability and fabrication method of the same | |
| JPH10331063A (en) | Composite nonwoven fabric and its production | |
| JP3519158B2 (en) | Thin and lightweight reinforced heat-sealed nonwoven fabric and method for producing the same | |
| JP3201671B2 (en) | Manufacturing method of composite nonwoven fabric | |
| CN1197133A (en) | Bulky nonwoven Fabric | |
| JP3305453B2 (en) | Laminated non-woven structure | |
| JP2021063316A (en) | Melt-blown nonwoven fabric and method for producing the same | |
| WO2020203357A1 (en) | Sound-absorbing material | |
| JPH09300513A (en) | Nonwoven fabric composite | |
| KR101167758B1 (en) | Light high-strength tuft backing and method for producing the same | |
| JP2003041472A (en) | Thin, light-weight and reinforced nonwoven fabric entangled by water current | |
| JP3784093B2 (en) | Disposable handbag | |
| JP2001316968A (en) | Composite nonwoven fabric |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |