CN1236124C

CN1236124C - Apparatus, method and system for air-opening textile fiber bundle and production of opened textile fiber bundle net

Info

Publication number: CN1236124C
Application number: CN 00135314
Authority: CN
Inventors: T·阿梅斯; R·L·肯利; B·R·罗马西; W·韦斯特; W·T·威甘德; J·-C·阿贝德; E·J·波维尔斯
Original assignee: ACETATE ARTIFICIAL FIBER Co Ltd
Current assignee: ACETATE ARTIFICIAL FIBER Co Ltd
Priority date: 2000-10-25
Filing date: 2000-10-25
Publication date: 2006-01-11
Anticipated expiration: 2020-10-25
Also published as: CN1350081A

Abstract

The present invention relates to an air opening injector which is used for treating a rectangular structure made of a bundle of fibers. The air opening injector comprises a box body, an air injector and collecting chambers, wherein the air injector is used for moving fiber bundles through the box body and opening the fiber bundles. At least one, preferably two, collecting chamber is positioned in a hole opening plate in a passage for moving the fiber bundles and an air control device for controlling air flow so as to push and press the moving fiber bundles and the hole opening plate. The movement of the fiber bundles is prevented through contact, and the fiber bundles are properly accumulated in the collecting chambers. The present invention also relates to a method for producing a multi-fiber bridle product by the air opening injector and a product produced by the method.

Description

Woven webs, shredding multi-fibre band also form the method and system of reservation shape

Technical field

The present invention relates to the system of energy opening fiber bundle, the fiber of Chan Shenging " by the shredding bundle " has the very useful shape in the absorbing structure product like this, particularly the present invention relates to be used for the air-opening injection apparatus and the method for this system, and the product that utilizes this system to form.

Background technology

Many long filaments, fiber and yarn (general name " fiber ") are sold with the form of " bundle ", in order to make the capacity maximum of packaging system, utilize those of ordinary skills' known systems method, it is compressed together many such fibers to curl arbitrarily, for example, the packing bag is the user who sells and send to fibre bundle with this fibre bundle.Before use, this class user generally wants " shredding " this fibrid bundle, is compressed interfibrous distance by increasing and makes and be compressed fiber separately.The known shredding method and apparatus of putting down in writing in the prior art has many kinds, for example U.S. Pat 3282768, US3523059, US3099594, US4522616, US2794480, US3032829, US5591297 and US5203757, at this, with reference to disclosure in conjunction with these patents.This kind equipment has multiple use, and the typical products of this kind equipment production is that the cross section is circular " shredding " bundle substantially, for example, is used to the fibre bundle of making cigarette filter or writing the instrument absorber.Yet use for other, cross section is rectangle preferably; For example, be used to be similar to the absorbing structure or the similar absorption product of the personal hygiene products of diaper, bandage, sanitary napkin.For this use, be best for the cross sectional shape of rectangle substantially.The representational example of this series products is in U.S. Pat 4289130,5117235 and 5928452, and invention number of registration H1565 authorizes in the U.S., and open among the PCT international publication number WO99/30661.

In the system of aforementioned type, using can the opening fiber bundle and it is made rectangle also is known technology with the air ejector that is used for tobacco filter stick etc., for example U.S. Pat 4468845 and US4435239.In fact, one of remarkable advantage of these systems is that the air ejector that is used for this system is to carry out operation under very low air pressure (as less than 3psi), that is to say, needn't put into expensive air compression with substantial contribution and reach in the stringing facility directly related with air-opening or " tow unclamps " system.Fibre bundle by the process of shredding in, this low-pressure air that is used sprays instrument through air-opening and moves fibre bundle, then, through a pannier assembly (a bustle assembly), in this pannier assembly, make by the fibre bundle of shredding and slow down and prevention, obtain shredding and the fibre bundle density wanted.The deceleration of fibre bundle and stop to utilize a kind of adjustable tension device to realize, this device is used to retrain fibre bundle, particularly utilize " tension force " plate of a flat locking and a kind of mechanical device of relative complex to realize, an end of this drag board is installed in the pannier assembly with axle, this mechanical device be used to regulate the drag board installed with axle towards with motion away from fibre bundle, thereby utilize this drag board to change the tension force that is applied on the fibre bundle.

Summary of the invention

According to an aspect of the present invention, providing a kind of is used for shredding multi-fibre band and it is formed the system of the reservation shape that is suitable for use as the personal hygiene products absorbing structure, described system comprises: (a) one first device, be used for accepting one first fibre bundle from a fibre bundle packaging with the predetermined dawn number of every long filament, long filament in described first fibre bundle is extended into one first fiber band, and has an outlet side that sends the described first fiber band with preset width; (b) one second device, be used for having the fibre bundle packaging that is different from the predetermined dawn number of the every long filament of described first fibre bundle and accept one second fibre bundle from one, the intrafascicular long filament of described second dimension is extended into one second fiber band, and has an outlet side that sends the described second fiber band with preset width; (c) air-opening injection apparatus comprises: (i) casing; (ii) inlet is used for accepting simultaneously the described first and second fiber bands forming the multi-fibre band, this first and second fibers band by optionally in conjunction with and one of them band be placed on the top of another band; (iii) an air ejector is used for the described multi-fibre band of shredding and controllably mixes said multi-fibre band; (iv) an outlet side is used to send described by the multi-fibre band of shredding.

The present invention also provides a kind of and is used for multi-fibre band of shredding and it is formed the system of the reservation shape that is suitable for use as the personal hygiene products absorbing structure, described system comprises: (a) one first device, be used for accepting one first fibre bundle from a fibre bundle packaging with the predetermined dawn number of every long filament, long filament in described first fibre bundle is extended into one first fiber band, and has an outlet side that sends the described first fiber band with preset width; (b) one second device, be used for having the fibre bundle packaging that is different from the predetermined dawn number of the every long filament of described first fibre bundle and accept one second fibre bundle from one, the intrafascicular long filament of described second dimension is extended into one second fiber band, and has an outlet side that sends the described second fiber band with preset width; (c) air-opening injection apparatus, it comprises: (i) casing, have an inlet and an outlet, inlet is used for accepting simultaneously described first and second fibre bundles and has and described first and second fibre bundle shapes cardinal principle corresponding structure, by outlet described first and second fibre bundles are discharged described casing with a multi-layer fiber bundle, this multi-layer fiber bundle has basic and described reservation shape corresponding structure; (ii) an air ejector is arranged on and closes on described porch in the casing, can produce the venturi type air-flow that this air-opening injection apparatus of a kind of process moves first and second fibre bundles and this first and second fibre bundle of shredding; (iii) a compressed air source that is communicated with described air ejector provides the delivery air that moves described first and second fibre bundles through described injection apparatus; (iv) forming room, be arranged in the casing and be positioned at the downstream of air ejector, be included in the first and second fibre bundle flow directions area corresponding to the increasing section gradually of described reservation shape, when described first and second fibre bundles move through, be assemblied in described air ejector in the described casing and make first and second fibre bundles fully by shredding and be full of described forming room basically; (v) collecting chamber, be arranged in described casing and in the downstream of described forming room, its structure and installation allow described first and second fibre bundles by shredding to accumulate in this collecting chamber, and are discharged from described casing through described casing outlet with different flowing velocities with described predetermined shape; Described collecting chamber comprises the described delivery air that at least one is assemblied in the perforated panel in the described first and second fibre bundle passages and moves through, so that make described first and second fibre bundles enter described perforated panel, and make part delivery air at least through described perforated panel; (vi) control valve, be used for the delivery air is remained on such level, it will make the described part of described delivery air through described perforated panel at least, and compel described first and second fibre bundles and make it to contact with described perforated panel friction with enough defeating, thereby stop first and second fibre bundles to move, and described first and second fibre bundles are accumulated in described collecting chamber through described collecting chamber.

According on the other hand, the invention provides a kind of method that is used for multi-fibre band of shredding and its formation is suitable for use as the reservation shape of personal hygiene products absorbing structure, described method comprises step: (a) have every long filament from one and be scheduled to move the fibre bundle packaging of dawn number one first fibre bundle by one first device, make the long filament in described first fibre bundle be extended into one first fiber band, and send the described first fiber band with preset width; (b) have from one and move one second fibre bundle the fibre bundle packaging that is different from the predetermined dawn number of the every long filament of described first fibre bundle by one second device, make the intrafascicular long filament of described second dimension be extended into one second fiber band, and send the described second fiber band with preset width; (c) at the inlet of an aerojet fibre-opening unit having, the described first and second fiber bands optionally are combined into the fiber band of a bilayer, make described double-deck fiber band come the described double-deck fiber band of shredding and controllably mix described double-deck fiber band, and described double-deck fiber band is discharged through described aerojet fibre-opening unit having.

The present invention also provides a kind of and is used for multi-fibre band of shredding and it is formed the method for the reservation shape that is suitable for use as the personal hygiene products absorbing structure, described method comprises step: (a) have every long filament from one and be scheduled to move the fibre bundle packaging of dawn number one first fibre bundle by one first device, make the long filament in described first fibre bundle be extended into one first fiber band, and send the described first fiber band with preset width; (b) has mobile one second fibre bundle the fibre bundle packaging that is different from the predetermined dawn number of the every long filament of described first fibre bundle from one, make the intrafascicular long filament of described second dimension be extended into one second fiber band, and send the described second fiber band with preset width; (c) produce a kind of delivery aerojet, be used for moving the first and second fiber bands and extremely export by casing from a casing inlet; (d) move the described first and second fiber bands by a forming room in described casing, this forming room has that increased cross-section is long-pending gradually on the direction that the first and second fiber bands flow, so that shredding first and second fiber bands partly; (e) move the first and second fibre bundle bands and enter a collecting chamber that is arranged in described forming room downstream, simultaneously, the described first and second fiber bands are engaged with at least one perforated panel that is arranged in the described first and second fibre bundle tape channels, and described delivery part of air is outwards flowed by described perforated panel; (f) regulate flowing of described delivery air, making the delivery air push described first and second fibre bundles with enough strength makes it to contact with described perforated panel friction, so that stop moving of the first and second fiber bands by collecting chamber, and make the first and second fiber bands to accumulate in the described collecting chamber greater than its density in described forming room.

In addition, the invention provides a kind of system that is used for multi-fibre band of shredding and its formation is suitable for use as the reservation shape of personal hygiene products absorbing structure, described system comprises: (a) one first device, be used for accepting one first fibre bundle from a fibre bundle packaging with the predetermined dawn number of every long filament, long filament in described first fibre bundle is extended into one first fiber band, and has an outlet side that sends the described first fiber band with preset width; (b) one second device, be used for having the fibre bundle packaging that is different from the predetermined dawn number of the every long filament of described first fibre bundle and accept one second fibre bundle from one, the intrafascicular long filament of described second dimension is extended into one second fiber band, and has an outlet side that sends the described second fiber band with preset width; (c) one first aerojet fibre-opening unit having comprises: (i) casing; (ii) inlet is used to accept the described first fiber band from one the first one-tenth band injector outlet side; (iii) an air ejector is used for the described first fiber band of shredding; (iv) an outlet side is used to send described by the first fiber band of shredding; (d) one second air-opening injection apparatus comprises: (i) casing; (ii) inlet is used to accept the described second fiber band from one the second one-tenth band injector outlet side; (iii) an air ejector is used for the described second fiber band of shredding; (iv) an outlet side is used to send described by the second fiber band of shredding; (e) be set at the device in the described first and second aerojet fibre-opening unit having downstreams, accept the described fiber band that is sent out and the optionally combination and controllably be mixed into a multi-fibre band of described fiber band.

The present invention provides a kind of again and is used for multi-fibre band of shredding and it is formed the method for the reservation shape that is suitable for use as the personal hygiene products absorbing structure, described method comprises step: (a) have every long filament from one and be scheduled to move the fibre bundle packaging of dawn number one first fibre bundle by one first device, make the long filament in described first fibre bundle be extended into one first fiber band, and send the described first fiber band with preset width; (b) have from one and move one second fibre bundle the fibre bundle packaging that is different from the predetermined dawn number of the every long filament of described first fibre bundle by one second device, make the long filament in described second fibre bundle be extended into one second fiber band, and send the described second fiber band with preset width; (c) the described first fiber band from described first device is moved on to one first air-opening device, the described first fiber band of shredding, and send the described first fiber band thus; (d) the described second fiber band that sends from described second device is moved on to one second air-opening device, the described second fiber band of shredding, and send the described second fiber band thus; (e) optionally combination and controllably mix compound multi-fibre band of formation of the described first and second fiber bands that send from the described first and second air-opening injectors.

According to a further aspect in the invention, provide a kind of woven webs, comprise one first and second fibre bundle, each fibre bundle all has a plurality of continuous by the textile filament of shredding, so that do not fit each other between long filament.

In the system that utilizes the air-opening injection apparatus, thin and textile filament Shu Kaisong broad relatively that this system is fixed together utilize curling and being formed reservation shape applicatory by the fibre bundle of shredding, as be used for the absorbing structure of personal hygiene products.This air-opening injection apparatus comprises a casing, and this casing has an inlet, and this inlet is used to accept part by the fibre bundle of shredding and have basic and described part by opening fiber harness shape corresponding structure; This casing also has an outlet, by this outlet fibre bundle is discharged from casing, and this outlet has basic and reservation shape corresponding structure.In casing, close on the porch and form an air ejector, to produce the venturi type air-flow that this air-opening injection apparatus of a kind of process moves fibre bundle and further opens fibre bundle, and, a compressed air source is communicated with this air ejector, the delivery air that moves this fibre bundle by this air-opening injection apparatus is provided.

In casing, the downstream of air ejector is provided with a forming room, in the fibre bundle flow direction, have and reservation shape increased cross-section area gradually accordingly, when fibre bundle moves through, made fibre bundle fully by shredding and be full of this forming room basically by device aerojet in casing.

The downstream of forming room is provided with a collecting chamber in casing, and its structure and installation allow to be collected in this collecting chamber by the fibre bundle of shredding, and withdraws from casing with predetermined shape process casing outlet with different in flow rate; This collecting chamber comprises at least one by the perforated panel of device in the fibre bundle passage and moving the delivery air that passes through, so that make fibre bundle be involved in this perforated panel, and makes some delivery air through this perforated panel at least.

A control valve is set, be used for the delivery air is remained on such level, thereby will making to small part delivery air process perforated panel and with enough trying hard to recommend, it press fibre bundle that fibre bundle is contacted with the perforated panel friction, so that stop fibre bundle to move, fibre bundle accumulated in collecting chamber through collecting chamber.

In a preferred embodiment of the invention, collecting chamber can comprise one second perforated panel, this second perforated panel first above-mentioned perforated panel relatively is provided with at interval, and fibre bundle moves between these two perforated panels, by the delivery air through these two perforated panels the fibre bundle pushing is contacted with two perforated panels.At last, in a preferred embodiment of the invention, the reservation shape of casing middle outlet is a rectangle.

In system provided by the present invention, it or not the upstream end that single fibre bundle is sent to an air-opening injection apparatus, but the different fibre bundle of two separation is sent to the upstream end of the air-opening injector of a single air-opening injector or separation, and hereinto or its downstream two fibre bundles are combined, form a kind of compound multi-fibre band.In this system, one first device is provided, this first device is used to accept to be scheduled to from the every long filament of having of a fibre bundle packaging one first fibre bundle of dawn number, long filament in this first fibre bundle is extended into one first fiber band, and this first device has an outlet side that sends this first fiber band with predetermined width.One second device is provided, this second device is used to accept having and predetermined one the second different fibre bundle of dawn number of every fiber of first fibre bundle from one second fibre bundle packaging, long filament in this second fibre bundle is extended into one second fiber band, and this second device has an outlet side that sends the second fiber band with predetermined width.Then, the first and second fiber bands are introduced the upstream end of this air-opening injection apparatus simultaneously, and they are moved through, resemble shredding and moulding the above-mentioned relevant single fibre bundle.Also can introduce this first and second fibers band in two air-opening injection apparatus that separate.

Each of described first and second devices can comprise that a fibre bundle becomes band injector and at least one pair of to be preferably how right transmission roller and one or more air-opening injection apparatus, this fibre bundle becomes band injector to be used to accept each first and second fibre bundle and this fibre bundle is extended into the form of band, and the first and second one-tenth of being placed in separately of this transmissions roller are with between injectors and one or two air-opening injection apparatus.

In a preferred embodiment of this system, the outlet side width of one of the first and second one-tenth beltings is littler than another, thereby a fiber band is bigger than another fibre bundle bandwidth from the multi-fibre band that the outlet side of one or more air-opening injection apparatus is discharged.Preferably the every filament denier of broad fiber band is littler than every filament denier of another fiber band.In addition, this system also comprises a surfactant applicator, it is positioned at the upstream of air-opening injection apparatus inlet, be used for adding surfactant to the less fibre bundle band application of width, and, this system can also comprise an adhesive applicator, and it is positioned at the upstream of air-opening injection apparatus inlet, is used for adding adhesive to the bigger fibre bundle band application of width.Also can change the transmission speed that two fibre bundle bands enter air-opening injection apparatus inlet individually, and control the shredding of two fiber bands individually.

In woven webs according to the present invention, preferably but need not to be and use the said apparatus system and method to produce, this fibre web comprises one first and second fibre bundle substantially, and each fibre bundle all has a plurality of continuous by the textile filament of shredding, so that do not fit each other between long filament.In one embodiment, the long filament of first and second fibre bundles mixes in the part of fibre web at least each other, for example, can mix each other in whole fibre web substantially, perhaps mainly mixes on the interface between first and second fibre bundles.In another embodiment, at least in the part of fibre web first and second fibre bundles basically each other in lamination.The first and second fibre bundle long filaments can be to have the different dawn number of every long filament, and this fibre web is compared the performance that has strengthened fibre web with the fibre web made from the single fibre bundle of the identical average dawn number of every long filament.Can give to add in the fibre web to apply composition, for example, can add the super-absorbent polymer that is used to strengthen fibre web liquid collecting and absorbability.Preferably first and second fibre bundles long filament one of at least has a kind of fusible bicomponent fiber, is used for the long filament of first and second fibre bundles is bonded together.

Description of drawings

Fig. 1 represents to use a kind of typical fibre bundle shredding system schematic of air-opening injector of the present invention;

Fig. 2 is the perspective view of air-opening injector preferred embodiment of the present invention;

Fig. 3 is an expression air-opening injector shown in Figure 2 partial side view;

Fig. 4 is the schematic diagram of air-opening injector casing shown in Figure 2;

Fig. 5 is an expression casing port of export front view;

Fig. 6 is the front view of a side plate of casing;

Fig. 7 is an expression casing arrival end front view;

Fig. 8 represents to use a kind of schematic diagram of selecting fibre bundle shredding system of air-opening injection apparatus of the present invention;

Fig. 9 is that one first embodiment of the compound multi-bundle fibre web product that forms of expression system shown in Figure 8 is at the horizontal schematic diagram in (be wide to) cross section;

The similar Fig. 9 of Figure 10 is one second an embodiment cross sectional representation of the compound multi-bundle fibre web product of expression system shown in Figure 8 formation;

Figure 11 is along 11-11 line longitudinal section enlarged diagram in Fig. 9 and 10, the long filament of compound multi-bundle fibre web product relation in the presentation graphs 9 and 10;

Figure 12 is the schematic diagram that another hocketed fibre bundle shredding system of air-opening injection apparatus of the present invention is used in expression;

Figure 13 is one first an embodiment cross sectional representation of the compound multi-bundle fibre web product of expression system shown in Figure 12 formation;

Figure 14 is one the second another schematic diagram of embodiment cross section of the compound multi-bundle fibre web product of expression system shown in Figure 12 formation;

Figure 15 is along 15-15 line longitudinal section enlarged diagram in Figure 13 and 14, the long filament relation of compound multi-bundle product in expression Figure 13 and 14;

Figure 16 is the schematic diagram that another hocketed fibre bundle shredding system of air-opening injector of the present invention is used in expression;

Figure 17 is the cross sectional representation of a kind of typical compound multi-bundle fibre web product of expression system shown in Figure 16 formation;

Figure 18 is along 18-18 line longitudinal section enlarged diagram among Figure 17, the fundamental relation of fiber in expression Figure 17 multi-bundle product;

Figure 19 assembly list that to be single fibre bundle fibre web outturn sample that system shown in Figure 1 is formed compare with the physical data of the compound multi-bundle fibre web outturn sample of system shown in Figure 8 formation; With

Figure 20 is to the performance comparative test of fibre web outturn sample among Figure 19 assembly list as a result.

The specific embodiment

Terminology used here " fiber " is meant long filament, fiber or the yarn that material is whatsoever made, this class material such as cellulose acetate and triacetate, polyester, polyamide, polyolefin and similar polymer.

Terminology used here " bundle " is meant the many fibers that are compressed in together, " bending " this class term is to use in the prior art and explain arbitrarily, be those of ordinary skills known in order to make the method for packaging system maximum capacity, sell and send this fibrid bundle by this method, perhaps strengthen the transportation to another ground from a ground of so many fiber is for example transported in production equipment.

Terminology used here " rectangle " and " being rectangle substantially " should be understood to the structure that the tool cross section is a rectangle, and this rectangle might have weak point slightly, if any the angle, garden with along a limit bending or indentation is arranged slightly.

The fiber of being made up of fibre bundle can be made by any natural or synthetic material or its mixture and/or blend, comprises polyester, polyamide, cellulose acetate and triacetate (general name " acetate " fibre bundle), polypropylene oxide, yellow polyethylene, the liquid crystalization polymer that can make fiber, polyamide, silk, hair, cotton, artificial silk, polyolefin, polyacrylate, polymethacrylates and can make the similar polymer of fiber.Whether this fiber is applied " arrangement " is decided according to its application.In general, use outer arrangement for the ease of transporting, although also can use " interior " arrangement, comprise the material that is used to make fiber, this fibrid is included in the scope of the present invention.In addition, the fiber in the fibre bundle can have any dawn number, special number, diameter, perhaps specifies other sectional dimension or the size relevant with the cross section that is applicable to the producd fibers bundle.

Used term " becomes the band injector " and is meant a kind of first fibre bundle fibre-opening unit having with " air becomes the band injector ", and it utilizes air to stretch fibre bundle in the direction perpendicular to direct of travel." becoming the band injector " also is to be different from " shredding injector " described here or " air-opening injector ".

The present invention can be used for multiple fibre bundle shredding, in the shredding especially for the fibre bundle of being made by acetic ester fiber, polyester fiber, polyamide fiber and polyamide fiber and their mixture.For example, a kind of acetic ester fiber bundle can by 2500 to 25000 fibrous, this fiber dawn number separately was about for 1 to 10 dawn, was preferably about 3 to 6 dawn.Therefore, the total denier of whole fibre bundle (i.e. 2500 to 25000 fibers) is about 2500 to about 250000 dawn.It is 10000 to 20000 fibers at about 3 to 6 dawn that the acetic ester fiber bundle generally has each fiber Denier, and the total denier that makes this fibre bundle was 30000 to 120000 dawn.

Fiber in fibre bundle should be homogeneous or be basically homogeneous be distributed in that the fiber that is curled ties in or the width/cross section of fiber band on.The Fiber Distribution of this homogeneous is for being processed into the fibre bundle shredding in rectangle or substantially for rectangle is important, and homogeneous is easy more more that it is produced rectangle or is the opening fiber bundle of rectangle substantially in the distribution of fiber.The present invention can use being curled of multiple width/cross section and packaged fibre bundle, and for example, width is about 25mm-75mm, be preferably about 40mm-60mm, height or thickness are about 1mm-7mm, are preferably about 2mm-5mm, and typical dimensions is wide about 50mm, thick about 3mm.

As mentioned above, can implement outside arrangement to each fiber in the fibre bundle, this arrangement amount accounts for about 0.3%-5% of fibre bundle weight, preferably accounts for about 0.5%-2.0%.

Used fibre bundle generally was " fibre bundle is curled " during invention was implemented, and this term is that those of ordinary skills use with known, and crispation number is preferably per inch about 20 to about 25 for not having about 5 to 30 to curl on the crimped fibre bundle at per inch.The present invention can be applied in the various fibre bundle shredding system, and a canonical system of advantageous applications of the present invention shows with schematic diagram Fig. 1.Fibre bundle 14 can flatten fibre bundle 14 and orientation by one pair of traditional guiding device feeding at the beginning.Then this fibre bundle is fed in the one-tenth band injector 130 of a traditional design.This one-tenth band injector stretches the fiber band in the direction vertical with fibre bundle processing direction equably.Generally speaking, the air that this used air one-tenth band injector 130 can be an any kind of well known in the prior art in these preferred embodiments becomes the band injector, for example, the Application No. of submitting in U.S. Pat 3226773 or on December 23rd, 1998 is 09/219818 the patent application of examining, at this in conjunction with its disclosure as a reference.Then, fibre bundle 14 feeding is advanced in the tension rollers assembly 40, fibre bundle 14 between the metallic roll 42 of jockey pulley assembly 40 and rubber rollers 44 extruding so that trail fibre bundle and disperseing and the defibre bundle fiber.In jockey pulley assembly 40, roller pressure is promptly imposed on the power of fibre bundle by

roller

42 and 44, be about 1-25psi, preferably about 5-15psi.In device shown in Figure 1 40, metallic roll is 42 (apex rollers), and rubber rollers is 44 (lower roller).

After coming out from assembly 40, fibre bundle is fed in the roll assembly 60, this assembly 60 drives metallic roll 62 by one and a rubber rollers 64 is formed, and metallic roll 62 has cannelure or is carved with screw thread or the metallic roll that is flat.Fibre bundle from assembly 40 during assembly 60 is transferred, this fibre bundle is stretched, stretching, extension is to utilize the drawing of clamp pressure between

roller

42 and 44 to finish.Clamp pressure between the roller of assembly 60 is about 10-40psi, is preferably about 20-30psi.

After coming out from assembly 60, make fibre bundle 14 destatic bar 100 and remove any static that may show on the fibre bundle 14 through one selectable first, this static may hinder subsequent job necessary in the absorbing structure moulding.

After coming out from assembly 60, fibre bundle is fed in the roll assembly 70, this assembly 70 drives metallic roll 72 by one and a rubber rollers 74 is formed, and described metallic roll 72 has cannelure or is carved with screw thread or the metallic roll that is flat.Fibre bundle from assembly 60 during assembly 70 is transferred, this fibre bundle is stretched, stretching, extension is to utilize the velocity of rotation that drives metallic roll 72 to finish greater than the velocity of rotation 44 of driven roller 62.The velocity of rotation of roller 72 is than fast percent 20-60 of the velocity of rotation of roller 62, preferably fast percent 30-50.Assembly 40,60 and each group of 70 all are traditional known, and they are included in the device that pressure is provided on the roller in the assembly, to promote this two rollers cooperation under predetermined pressure level in the assembly.These traditional components can be used air pressure, hydraulic pressure or electric type of drive, but pneumatic best.Clamp pressure between the roller of assembly 70 is about 1-40psi, is preferably about 20-30psi.

The fibre bundle that forms from assembly 70 as later fibre bundle 14.

Roller

64 and 74 groove or screw thread be fibre bundle handle or the prior art of shredding in those of ordinary skill known design or orientation.The fiber that forms from assembly 70 is to disperse or shredding basically, is suitable for further shredding and forms fluffy rectangular configuration.

Substantially disperse or unclamp be meant form rectangular configuration or rectangular fiber intrafascicular 90% or more, be preferably 95% fiber spacing greater than the fiber spacing of fibre bundle 14 when packing 12 is transferred.

After coming out from assembly 70, make fibre bundle 14 remove any static that may show on the fibre bundle 14 through a selectable bar 101 that destatics, this static may hinder subsequent job necessary in the absorbing structure moulding.

After destaticing processing, fibre bundle 14 is transported to a selectable liquid applies in the assembly 80, this assembly 80 comprises a beverage container, measuring pump 84 and liquid dispersion applicator 86, in assembly 80 liquid dispersion on fibre bundle 14.This liquid dispersion applicator 86 can be the known traditional design device of nozzle, coating tray, roll brush applicator, wick touch roll and similar those of ordinary skills.The liquid that can be dispersed on the fibre bundle 14 comprises water; The water seeking liquid class is as ethanol class, glycols, dimethylsulphide, ketone, ethers and similar substance; The plasticizer class is as fiber coagulating agent 100 or fiber coagulating agent 200 (Henkel Corp of the city of Cincinnati, Ohio produces); Surfactant-based and contain plasticizer, surfactant and those of ordinary skills' known analogs matter solution class.When fibre bundle process assembly 86, liquid or solution can be put on the one or both sides of fibre bundle 14, in addition, can put on fibre bundle to liquid or solution by the specific decorative pattern of multiple liquid, to produce unique effect, make liquid conversion or storage in the absorption composite construction that comprises rectangular fiber bundle 14.

After coming out from air-opening device 240, fibre bundle 14 is sent in the selectable assembly 120, utilize instrument to apply solid matter at this to fibre bundle, this class solid matter such as super-absorbent polymer (SAP), glue, sticker, spices, wood pulp, deodorant, antimicrobial and similar substance, this instrument class comes that state Fort Hill to flow the continuous discharging feed rake that trading company makes admittedly like southern Caro.For example, in the diaper preparation that contains SAP, can carry SAP vertically downward on fibre bundle 14 with powdery or slurry.Low-density, shredding, the rectangular fiber belt structure of discharging air ejector 240 allow solid particle to be evenly dispersed in the fibre bundle fibre structure.The fibre structure that evenly is dispersed with solid particle can be transported in the subsequent treatment apace, so that solid particle is retained.The liquid that applies from assembly 80 also adds strong solid and retains.

After solids being applied with assembly 120, fibre bundle 14 is transported to can select the acceleration sending assembly 90 that is provided with, have a driven roller 92 and roller 94 in this assembly 90, both one of or both can have the contact fibre bundle 14 rubber surface or metal surface.Since in another processing mechanism that will be sent to, the overall operation that driven roller 92 controls are handled and the speed of fibre bundle 14, another processing mechanism such as diaper or absorption composite construction make-up machine.In general, the operating speed of driven roller 92 and driven roller 72 is that superficial velocity is about 1.0: 1.0 to about 3.0: 1.0 than (72/92), is preferably 1.8: 1.0 to 2.2: 1.0.

The linear speed of roller 92 is controlled by the linear speed of diaper or absorption composite construction forming processes basically, the fluffy rectangular fiber bundle structure of feeding in this processing.

In the preferred embodiment, fibre bundle 14 directly sent to diaper or absorb do not use acceleration component 90 in the composite construction forming processes.In this embodiment, diaper or absorption composite construction forming processes play the effect that sends or draw speed control.Be clamped in the fibre bundle band structure that has solid and be applied in liquid between roller or be wrapped on the single driven roller, and be pulled away from air ejector 240.Tulle or other fibre web can be introduced into the solid structure that wraps fiber.

Additional

selectable bar

102 and 103 of destaticing can be arranged on that air-opening injector 240 and liquid apply between the assembly 80, after the air-opening injector 240.Destatic bar 100,101,102 and 103 and can promote the handlability of controlling fiber bundle 14, also can promote the rectangular configuration shape of controlling fiber bundle by restriction to static.Use the additional bar that destatics in case of necessity, suggestion is used when ambient humidity is low.Thisly additional destatic bar and not only can be arranged on after

assembly

60,70 and 80, also can be arranged between the

assembly

60 and 40,40 and 130,120 and 90.At least has the bar of destaticing 100,101 and 102 in the preferred embodiment.

Air-opening injector 240 of the present invention comprises a casing 242 that has inlet 244 at an end.Preferably referring to Fig. 7,244 shapes with fibre bundle 14 of basic and part shredding that enter the mouth are roughly the structure of rectangle accordingly, and fibre bundle 14 is accepted at inlet 244 as mentioned above.Casing 242 also comprises an outlet 246, preferably referring to Fig. 5, this outlet also have and leave air-opening injection apparatus 240 fibre bundle want the corresponding rectangular configuration of shape.

An air ejector, generally represent with reference number 248, close on the upstream end setting of casing 242, it comprises and is compressed air source 250 and a traditional control valve 252, this valve makes compressed air flow regularly to air manifold 254 from being compressed air source 250, send to jet 256 by air manifold 254 being compressed air, this jet form a kind of traditional aerojet move fibre bundle 14 in casing 242 by central passage 258, will explain in more detail this.Preferably referring to Fig. 3, passage 258 has the area of increasing section gradually in the moving direction of fiber, so that a forming room 260 is set in the downstream of air ejector 248, this forming room 260 also preferably has and the corresponding basic structure of rectangle that is of the rectangular shape of fibre bundle 14.

Close on the outlet side of casing 242 and a collecting chamber 262 is set in the downstream of forming room 260, the vertical size of this collecting chamber 262 is greater than the outlet 264 of forming room 260, also preferably be arranged to rectangular configuration, entered collecting chamber 262 by opening fiber bundle 14 from forming room 260 so that allow, and accumulation in collecting chamber 262, at last, withdrawed from from casing 242 through outlet 246 with preferred rectangular shape and under different flow rates by the fibre bundle 14 of shredding.

Preferably referring to Fig. 3 and 4, be placed in a pair of plate 268 in the collecting chamber 262 and in the passage of fibre bundle 14, each in this plate all has a plurality of holes 270, this passage is that fibre bundle is discharged forming room 260 and entered the passage of collecting chamber 262.With a plurality of bolts 272 plate 268 is positioned in the collecting chamber 262, this bolt 272 is located the fixed position that plate 268 remains in the collecting chamber 262.

Casing 242 also comprises pair of side plates 274, this side plate 274 extends the sidewall that (referring to Fig. 7) surrounds collecting chamber 262 and forming room 260 along both sides, each side plate 274 all is provided with a plurality of holes 276, this hole generally is positioned at the position that the delivery air leaves forming room 260 and enters collecting chamber 262, thereby some delivery air can be sent by hole 276.

In the operation of air-opening injection apparatus 240, compressed air flows with the flow rate by control valve 252 controls to air ejector 248 from being compressed air source 250, and comes mobile fibre bundle 14 through forming room 260 by the aerojet that hole 256 forms.Along with the delivery air moves through forming room 260 to fibre bundle 14, the delivery air will be partly shredding and increased fiber bundle 14 so that according to forming room 260 gradually the increased cross-section area make fibre bundle 14 little by little increase area of section.When fibre bundle is discharged forming room 260 and is entered collecting chamber 262, its at first evenly shredding, even further reach and perforated panel 268 upstream terminations between accordingly vertically apart from degree (referring to Fig. 3), and fibre bundle 14 contact on the inner surface of perforated panel 2, this perforated panel 2 is arranged in the passage of fibre bundle 14.

By the 276 d/d whiles of hole in the side plate 274, the major part of delivery air moves fibre bundle 14 by the space between the perforated panel 268 at some delivery air, and leads to the outside through the hole 270 in the perforated panel 268.Lead to air outside through via hole 270 fibre bundle 14 is pressed to perforated panel 268 interior surface opposing and friction contact with it, this friction contact is to 14 interceptions of fibre bundle, it can hinder moving through the fibre bundle 14 of collecting chamber 262, to be accumulated in the collecting chamber 262 fibre bundle is intensive than density bigger in forming room 260, afterwards, being discharged collecting chamber 262 with different flow rates through outlet 246 by the new intensive fibre bundle 14 of shredding.

Importantly the fibre bundles 14 of discharging through outlet 246 have the density of desirable homogeneous of the fibre bundle 14 that is rectangle substantially fully, the invention provides a kind of very desirable method of the uniqueness that fibre bundle 14 density of discharging are controlled.Be apparent that obstruction or the stagnation that between perforated panel 268, will determine to act on fibre bundle 14 when fibre bundle 14 especially by the flow rate of time delivery air.If increase the flow rate of delivery air, the hole 270 outside delivery air of process perforated panel 268 will contact with perforated panel 268 to push fibre bundle 14 more energetically, thereby strengthen acting on the obstruction or the stagnation of fibre bundle 14.On the contrary, if reduce to deliver the flow rate of air with the obstruction or the stagnation of abated effect in fibre bundle 14.

Therefore, in fact, handle provides the control valve 252 of delivery air just can obtain numerous inhibition clocklike among the present invention simple and easyly, this delivery air will provide the desirable inhibition that puts on fibre bundle 14, thereby control the closeness of fibre bundle 14 when fibre bundle 14 leaves casing 242.

Although can be appreciated that in use changed by the actual flow speed of influence of various factors delivery air, in standard operation of the present invention, desirable fibre bundle 14 density that the air pressure of 40psi provides are 0.004g/cm ³, this fibre bundle 14 is to discharge through the outlet of wide 20cm, high 2.5cm.

Fig. 8,12 and 16 illustrates the three kinds of shredding systems that can select fibre bundle, and it uses air-opening injection apparatus 240 of the present invention with unique mode.The system that represents of Fig. 8 specifically, its a plurality of fiber bands feed the into inlet of air-opening injection apparatus 240.In Fig. 8, identical in each assembly with assembly described in above Fig. 1, represent with identical numeral.Two fiber bands are represented with 14A and 14B.But can be understood as the fiber band that can use more than two, this decides according to the final products of wanting.

Preferably referring to Fig. 8, each is to feed into from fibre bundle packaging that tradition becomes to be with

injector

130A and 130B for two

fiber band

14A and 14B, is described in detail respectively at this.After handling two

fiber band

14A and 14B by one-

tenth band injector

130A and 130B, these two

fiber band

14A and 14B are sent to 40 clampings place of tension rollers assembly, this assembly 40 is made of metallic roll 42 and a rubber rollers 44, all these with above-mentioned Fig. 1 in the same.After combined fiber band leaves tension rollers assembly 40, feed this combined fiber band through a series of assemblies identical with above-mentioned Fig. 1.

Fig. 9 with cross-sectional illustration the final products of discharging from the air-opening injection apparatus 240 of Fig. 8 system, wherein be set at into

band injector

130A and 130B and send each

fiber band

14A and 14B with the strict each other form that covers together on same widths and the width.Before entering air-opening injection apparatus 240, tension rollers assembly 40 and roll

assembly

60,70 make the long filament of two

fiber band

14A and 14B originally join in a large number effectively, subsequently, air-opening injection apparatus 240 becomes the composite web of joining fully each other basically effectively to each long filament of two

fiber band

14A and 14B, wherein each long filament of two

fiber band

14A and 14B is entwined in whole width range and in the thickness range of whole substantially fibre web substantially fully each other, as shown in Figure 9.

But, in system shown in Figure 8, the bandwidth of every single fiber band 14A and 14B can become band injector 130A and 130B to handle the width that control changes two fiber band 14A and 14B by traditional air respectively, these two fiber band 14A and 14B are sent to air-opening injection apparatus 240 simultaneously so that unique products to be provided, and Figure 10 has illustrated one of them example.So, if want, can feed from two packings two fiber band 14A and 14B by traditional arrangement for guiding (not shown) at the very start, this arrangement for guiding with manner known in the art two fiber band 14A with 14B flattens and directed, and, when two fiber band 14A and 14B arrive air and become to be with injector 130A and 130B, two fiber bands are stretched in perpendicular to the direction of these two fibre bundle direction of belt travel, thereby become among band injector 130A and the 130B this two fiber band 14A and 14B shredding at air.In addition, the width of these two fiber band 14A and 14B can become band injector 130A and 130B to change by air, so that the final products of being emitted from air-opening injection apparatus 240 have the bundle of composite fibers structure of wanting especially.An example as this bundle of composite fibers structure, Figure 10 with cross-sectional illustration the final products of discharging from the air-opening injection apparatus 240 of Fig. 8 system, be set at by air one-tenth band injector 130A and send narrower fiber band 14A, this narrower fiber band 14A covers the relatively large broad fiber band 14B center that is become band injector 130B transmission by air.As above-mentioned identical form in, the roll assembly 40,60,70 of following behind air-opening injection apparatus 240 is entwined into a composite web to each long filament of two fiber band 14A and 14B effectively, wherein fibre web longitudinal center zone has two fiber band 14A being entwined fully basically and the long filament of 14B, but the outer edge area of composite web is surrounded by the long filament of broad fiber band 14B basically fully, as shown in figure 10.

Figure 11 illustrates in Fig. 9 or 10 the bundle of composite fibers fibre web along the longitudinal section of transversal 11-11, demonstrate the character that the fibre bundle long filament is bent, and illustrate closely entwining of two

fiber band

14A and 14B long filament, its characteristics are can not distinguish each other basically long filament separately.Certainly, can recognize as those of ordinary skill in the art, the treatment system of Fig. 8 and the treatment system that other may be selected of the present invention can be produced the compound multi-bundle fibre web product of other type, and these products as Figure 12 and 16 illustrate in greater detail this below.

Figure 12 represents to use the another kind of single air ejector 240 can select treatment system, illustrates once more, and is identical among the content of assembly shown in Figure 12 and Fig. 1, uses identically with reference to digital, needn't be elaborated at this again.In this system, be to become band injector 130 two fiber band 14A are fed into single air with 14B from fibre bundle packaging (as shown in Figure 8) with above-mentioned identical mode shown in Figure 8.But, in this system shown in Figure 12, two fiber band 14A and 14B handle respectively through all component alone, these assemblies are assemblies that the single fiber band 14 among Fig. 1 is worked, promptly through separately tension rollers assembly 40, roll assembly 60 separately, 70 and liquid separately apply assembly 80, as shown in figure 12, because these two fiber band 14A and 14B are by a plurality of processing components independent process, this system can be used to control effectively the width of these two fiber band 14A and 14B, and independent control transmission speed and these two fiber band 14A, each shredding of 14B.In addition, because liquid applies agent and utilizes assembly 80,84 and 86 to impose on this two fiber band 14A and 14B respectively, these assemblies illustrated in above-mentioned Fig. 1, so, can put on different additives or non-additive on one of these two fiber band 14A and 14B or two, each tow groups is divided obtain different effects, as change super-absorbent polymer stand-up, solid tack or the liquid distribution enhancing property of each fiber band 14A and 14B.In addition, also can apply additive to bundle of composite fibers fibre web in air-opening injection apparatus 240 downstreams.

Contrast with Fig. 8 system, different tension rollers assemblies 40, roll assembly 60,70 and the liquid that two single fiber band 14A in Figure 12 system and 14B are used applied assembly 80 before these two fiber band 14A and 14B being sent into air-opening injection apparatus 240, stoped these two fiber band 14A and any of 14B to join.Therefore, in the bundle of composite fibers fibre web of discharging air-opening injection apparatus 240, the single long filament of these two fiber band 14A and 14B is only just joined by the effect of air-opening injection apparatus 240, so, lower than the degree of joining in the composite web of producing by Fig. 8 system.Particularly the bundle of composite fibers fibre web of being produced by Figure 12 system has three substantially and can identify different fibre bundle zones on the composite web thick section: composite web face is outwardly closed in one first district, mainly, penetrate into a mesozone gradually by being formed by the separation long filament of air-opening among the fiber band 14A; The mesozone is positioned at fibre bundle fibre web thick section center, by being formed by shredding and the long filament that separates of these two fiber band 14A that entwine each other basically and 14B, penetrates into one the 3rd district gradually; The 3rd district is positioned at the opposite of composite web outside, mainly is made up of the long filament that is separated by shredding among the fiber band 14B.Figure 13 and 14 illustrates this three districts with the form of cross section, Figure 13 represents an embodiment with the bundle of composite fibers fibre web of Figure 12 system production, wherein fiber band 14A has identical width with 14B and cover the location mutually on width, Figure 14 represents bundle of composite fibers fibre web alternate embodiments, similar with among Figure 10, wherein fibre bundle 14A width is narrower and cover at the center of broad fibre bundle 14B relatively.

Figure 15 illustrates three districts of bundle of composite fibers fibre web in Figure 13 and 14 with the form of longitudinal section, similar with among Figure 11.Compare with the bundle of composite fibers fibre web that Fig. 8 system produces, the bundle of composite fibers fibre web space that Figure 12 system produces mainly be only in the junctional area between two

fiber band

14A and 14B each long filament of

single fiber band

14A, 14B entwine each other basically, at this

moment fiber band

14A and 14B are sent into air-opening injection apparatus 240.

Can understand like this, utilizing a plurality of independent controls and/or handling the fiber band provides production to have the chance of certain infrastructure product and making specific function composite with the effectiveness that combines of air-opening injection apparatus 240.For example, might produce a kind of assembly that is specially adapted to promptly abandon absorber element, as throw-away nappy with usefulness.The bundle of composite fibers structure of similar Figure 10 or 14 illustrated embodiments is applicable to this special-purpose, this bundle of composite fibers structure is the fiber band 14A formation that is had high Denier (DPF) by every filter disc, as 6-8DPF, and fiber band 14A total denier is 12000-20000.Shown in Figure 10 or 14, can be oriented in the centre of composite construction to fiber band 14A so that it can contact or distinguish near invading with the initial fluid of promptly abandoning absorber element, higher DPF can improve fluid collection among the fiber band 14A, because its shrinkage resistance when having higher intensity and bound water.In typical example, the one-tenth band injector 130 that the one-tenth band injector 130A among Fig. 8 or Figure 12 put on fiber band 14A can limit the width of fiber band 14A to nearly 80mm.If use the system of Figure 12, but through applying the liquid surfactant that liquid assembly 80 applies for fiber band 14A, it can strengthen the fluid control in the fluid collection structure.On the other hand, fiber band 14B can have lower DPF, as is 2-3, and its total denier is 30000-40000, and fiber band 14B can be oriented in the composite construction bottom, so that it becomes with the main core body of promptly abandoning absorber element.Low DPF fibre bundle band structure can improve the pardon of super-absorbent polymer, because it has higher density, bigger fiber surface contact area and more single fiber.For example, the fiber band 14B of 2.0DPF/40000 total denier can have nearly 20000 single fibers, and the fiber band 14A of 6.0DPF/15000 total denier may have only nearly 2500 single fibers.The width that preferably becomes band injector 130 restriction fiber band 14B is to 150mm, and this is the throat width of air-opening injection apparatus 240 fully, resembles structure shown in Figure 10 so that the bundle of composite fibers structure of discharge air-opening injection apparatus 240 can have.At last, if use system shown in Figure 12, give the adhesive of the preferably similar plasticizer of liquid, water or water base sticker that fiber band 14A applies through putting assembly 80, with pardon and/or the solid tack or the pardon of the super-absorbent polymer in the reinforcing fibre band 14B structure.

Certainly, can understand like this, above-mentioned specific bundle of composite fibers structure only is to use the typical example of the multiple bundle of composite fibers structure of Fig. 8 and the manufacturing of 12 systems.For example, width except controlling

fiber band

14A and 14B, if use system shown in Figure 12, also can control transmission and/or the shredding speed of each

single fiber band

14A and 14B by the speed of

control roll assembly

60 and 70 respectively, thereby change the fiber band 14A be sent in the air ejector 240 and the characteristic of 14B.Equally, form the long filament that

fiber band

14A and 14B can use other type.For example, what a fiber band is to be formed by the long filament that contains meltable bicomponent fiber material, and when applying subsequent heat treatment for the bundle of composite fibers fibre web, it can be bonded together the long filament of fiber band 14A and 14B.Very natural, to those skilled in the art, be easy to expect many other alternate embodiments.

Furthermore, with being compared by opening fiber bundle fibre web of being made by single fiber band, the present invention can select combination more excellent stronger with feature, characteristic and the performance performance of mixing different fiber bands formation bundle of composite fibers fibre webs.In order to estimate this potential performance, to the bundle of composite fibers fibre web of above-mentioned use Fig. 8 system manufacturing with use Fig. 1 system that single fiber band is made by the fibre bundle fibre web of shredding to compare test.This result of the test is tabulated in Figure 19 and 20.The unified processing that each fibre web is carried out is to apply one deck super-absorbent polymer (SAP), suitable porous or non-hole glue-line and outsourcing yarn, each fibre web made the absorber element that is used to above-mentioned throw-away nappy.Make two sample element with the different composite fibre bundle fibre web that Fig. 8 system produces, the single fibre bundle fibre web of producing with Fig. 1 system is made three sample element, then, the element of having determined its liquid collecting and absorbability is tested.In order to compare, the different physical characteristics of sample element are listed in the table of Figure 19, simultaneously, the test result of these elements is listed in the table of Figure 20.The sample element made from the bundle of composite fibers fibre web of Fig. 8 system is designated as sample 6-0601 and 7-0601, the sample element made from the single fibre bundle fibre web of Fig. 1 system is designated as sample 2-0601,3-0601 and 4-0601.

As can be seen, even single fibre bundle fibre web has the average dawn number of identical every long filament with the bundle of composite fibers fibre web, compare with the element made from single fibre bundle fibre web, the sample element made from the bundle of composite fibers fibre web has higher collection and assimilation effect.So, can reach a conclusion from these tests, the bundle of composite fibers fibre web has to protect better than the fibre web with single fibre bundle system is just depositing super-absorbent polymer, has higher stability thereby show as fiber bundle structure.

In addition, Figure 16 has illustrated another unique system of using air-opening injection apparatus 240 of the present invention, and same components is digital the same in the digital and above-mentioned Fig. 1 of reference system.In this system, each

fiber band

14A, 14B are respectively by series of processing steps, and then different air-opening injection apparatus 240 is advanced in feeding.Particularly as shown in figure 16, before each fiber band is fed into different air-opening injection apparatus 240, each is individually by becoming to be with injector 130 for two

band

14A and 14B, by above-mentioned

assembly

40,60 and 70, applies assembly 80 by liquid more then.

Then, as shown in Figure 1, the fiber band combination of discharging air-opening injection apparatus 240 is also then sent to the same components that is positioned at air-opening injection apparatus 240 downstreams, when combined fiber band is moved through acceleration transmission roll assembly 90, make as Figure 17 and 18 illustrated compound multi-bundle fibre webs.

Compare with the multi-bundle fibre web shown in 14 with Fig. 9,10,13, because

fiber band

14A, 14B are by shredding and processing combine again respectively in different air-opening injection apparatus 240,

fiber band

14A, 14B have the relation of burst layering substantially, as Figure 17 and 18 illustrated, the fiber of two

fiber band

14A and 14B almost has not a particle of entwines.

Another advantage of the multi-bundle fibre web that Figure 16 system forms is that the hierarchy of fibre web makes and itself can carry out dissimilar special treatments.For example, each layer in the product can carry out difference or single arrangement at the liquid place of applying 80, if want, at the liquid place of applying 80 or air-opening injection apparatus 240 downstreams apply processing place one side or both sides, can be inserted in a kind of material of wanting (as a kind of super-absorbent polymer) between the layer that forms by fibre

bundle fibre web

14A, 14B.

Obviously, those of ordinary skill in the art can recognize, of the present invention use and application is widely.Except these embodiment described here, do not break away from essence of the present invention or scope, can draw many embodiment and accommodation mode and multiple variation, modification and equality unit from the present invention and above stated specification thereof significantly.Therefore, what describe in detail here is about the preferred embodiments of the present invention, and should be understood to this openly is explanation of the present invention and for example, only is for overall description of the present invention and open is provided.Thisly aforementionedly open do not mean or be interpreted as to be limitation of the invention, do not get rid of any other embodiment, accommodation mode, variation, modification and equality unit in other words, the present invention just limits with subsidiary claim and dependent claims thereof.

Claims

1. one kind is used for shredding multi-fibre band and it is formed the system of the reservation shape that is suitable for use as the personal hygiene products absorbing structure, and described system comprises:

(a) one first device, be used for accepting one first fibre bundle from a fibre bundle packaging with the predetermined dawn number of every long filament, long filament in described first fibre bundle is extended into one first fiber band, and has an outlet side that sends the described first fiber band with preset width;

(b) one second device, be used for having the fibre bundle packaging that is different from the predetermined dawn number of the every long filament of described first fibre bundle and accept one second fibre bundle from one, the intrafascicular long filament of described second dimension is extended into one second fiber band, and has an outlet side that sends the described second fiber band with preset width;

(c) air-opening injection apparatus comprises:

(i) casing;

(ii) inlet is used for accepting simultaneously the described first and second fiber bands forming the multi-fibre band, this first and second fibers band by optionally in conjunction with and one of them band be placed on the top of another band;

(iii) an air ejector is used for the described multi-fibre band of shredding and controllably mixes said multi-fibre band; With

(iv) an outlet side is used to send described by the multi-fibre band of shredding.

2. the system of formation multi-fibre band according to claim 1, it is characterized in that: the width of the described outlet side of one of described first or second device makes that less than the width of the outlet side of another device the described multi-fibre band that sends from the described outlet side of described air-opening injection apparatus is that a fiber band is greater than another fiber band with regard to width.

3. the system of formation multi-fibre band according to claim 2 is characterized in that: every filament denier of the described fiber band that width is bigger is different from every filament denier of another fiber band.

4. the system of formation multi-fibre band according to claim 2 is characterized in that: every filament denier of the described fiber band that width is bigger is less than every filament denier of another fiber band.

5. the system of formation multi-fibre band according to claim 2, it is characterized in that: this system comprises a surfactant applicator that is placed in described air-opening injector inlet upstream, and one or two that is used for giving individually described fiber band applies surfactant.

6. the system of formation multi-fibre band according to claim 5 is characterized in that: described surfactant only puts on the less described fiber band of width.

7. the system of formation multi-fibre band according to claim 2, it is characterized in that: this system comprises an adhesive applicator that is placed in described air-opening injector inlet upstream, and one or two that is used for giving individually described fiber band applies adhesive.

8. the system of formation multi-fibre band according to claim 7 is characterized in that: described adhesive only puts on the bigger described fiber band of width.

9. the system of formation multi-fibre band according to claim 1, it is characterized in that: each in described first and second devices all has a fibre bundle and becomes band injector and at least one pair of to send roller, this fibre bundle becomes the band injector to be used to accept each first or second fibre bundle, and this fibre bundle stretching, extension, sending roller is placed in respectively between described first and second one-tenth band injector and the described air-opening injection apparatus, and, the speed that the described first and second fiber bands send to described air-opening injection apparatus can be controlled separately.

10. the system of formation multi-fibre band according to claim 1 is characterized in that: described first and second devices can be controlled separately, thereby change the shredding of the described first and second fiber bands.

11. one kind is used for multi-fibre band of shredding and it is formed the system of the reservation shape that is suitable for use as the personal hygiene products absorbing structure, described system comprises:

(c) air-opening injection apparatus, it comprises:

(i) casing, have an inlet and an outlet, inlet is used for accepting simultaneously described first and second fibre bundles and has and described first and second fibre bundle shapes cardinal principle corresponding structure, by outlet described first and second fibre bundles are discharged described casing with a multi-layer fiber bundle, this multi-layer fiber bundle has basic and described reservation shape corresponding structure;

(ii) an air ejector is arranged on and closes on described porch in the casing, can produce the venturi type air-flow that this air-opening injection apparatus of a kind of process moves first and second fibre bundles and this first and second fibre bundle of shredding;

(iii) a compressed air source that is communicated with described air ejector provides the delivery air that moves described first and second fibre bundles through described injection apparatus;

(iv) forming room, be arranged in the casing and be positioned at the downstream of air ejector, be included in the first and second fibre bundle flow directions area corresponding to the increasing section gradually of described reservation shape, when described first and second fibre bundles move through, be assemblied in described air ejector in the described casing and make first and second fibre bundles fully by shredding and be full of described forming room basically;

(v) collecting chamber, be arranged in described casing and in the downstream of described forming room, its structure and installation allow described first and second fibre bundles by shredding to accumulate in this collecting chamber, and are discharged from described casing through described casing outlet with different flowing velocities with described predetermined shape; Described collecting chamber comprises the described delivery air that at least one is assemblied in the perforated panel in the described first and second fibre bundle passages and moves through, so that make described first and second fibre bundles enter described perforated panel, and make part delivery air at least through described perforated panel;

(vi) control valve, be used for the delivery air is remained on such level, it will make the described part of described delivery air through described perforated panel at least, and compel described first and second fibre bundles and make it to contact with described perforated panel friction with enough defeating, thereby stop first and second fibre bundles to move, and described first and second fibre bundles are accumulated in described collecting chamber through described collecting chamber.

12. one kind is used for multi-fibre band of shredding and it is formed the method for the reservation shape that is suitable for use as the personal hygiene products absorbing structure, described method comprises step:

(a) have every long filament from one and be scheduled to move the fibre bundle packaging of dawn number one first fibre bundle, make the long filament in described first fibre bundle be extended into one first fiber band, and send the described first fiber band with preset width by one first device;

(b) have from one and move one second fibre bundle the fibre bundle packaging that is different from the predetermined dawn number of the every long filament of described first fibre bundle by one second device, make the intrafascicular long filament of described second dimension be extended into one second fiber band, and send the described second fiber band with preset width;

(c) at the inlet of an aerojet fibre-opening unit having, the described first and second fiber bands optionally are combined into the fiber band of a bilayer, make described double-deck fiber band come the described double-deck fiber band of shredding and controllably mix described double-deck fiber band, and described double-deck fiber band is discharged through described aerojet fibre-opening unit having.

13. it is according to claim 12 the shredding of a multi-fibre band and make it form the method for reservation shape, it is characterized in that: the width of the fiber band of discharging from one of described first or second device is less than the width of the fiber band of discharging from another device, and a fibre bundle belt from the described multi-fibre band that an outlet side of described aerojet fibre-opening unit having sends is greater than another fiber belt.

14. according to claim 13 the shredding of a multi-fibre band and make it form the method for reservation shape, it is characterized in that: the bigger every filament denier of described fiber band of width is less than every filament denier of another fiber band.

15. according to claim 13 the shredding of a multi-fibre band and make it form the method for reservation shape, it is characterized in that: the downstream at described aerojet fibre-opening unit having imposes on the less described fiber band of width to surfactant.

16. according to claim 13 the shredding of a multi-fibre band and make it form the method for reservation shape, it is characterized in that: the downstream at described aerojet fibre-opening unit having imposes on the bigger described fiber band of width to adhesive.

17. one kind is used for multi-fibre band of shredding and it is formed the method for the reservation shape that is suitable for use as the personal hygiene products absorbing structure, described method comprises step:

(b) has mobile one second fibre bundle the fibre bundle packaging that is different from the predetermined dawn number of the every long filament of described first fibre bundle from one, make the intrafascicular long filament of described second dimension be extended into one second fiber band, and send the described second fiber band with preset width;

(c) produce a kind of delivery aerojet, be used for moving the first and second fiber bands and extremely export by casing from a casing inlet;

(d) move the described first and second fiber bands by a forming room in described casing, this forming room has that increased cross-section is long-pending gradually on the direction that the first and second fiber bands flow, so that shredding first and second fiber bands partly;

(e) move the first and second fibre bundle bands and enter a collecting chamber that is arranged in described forming room downstream, simultaneously, the described first and second fiber bands are engaged with at least one perforated panel that is arranged in the described first and second fibre bundle tape channels, and described delivery part of air is outwards flowed by described perforated panel;

(f) regulate flowing of described delivery air, making the delivery air push described first and second fibre bundles with enough strength makes it to contact with described perforated panel friction, so that stop moving of the first and second fiber bands by collecting chamber, and make the first and second fiber bands to accumulate in the described collecting chamber greater than its density in described forming room.

18. one kind is used for multi-fibre band of shredding and it is formed the system of the reservation shape that is suitable for use as the personal hygiene products absorbing structure, described system comprises:

(c) one first aerojet fibre-opening unit having comprises:

(i) casing;

(ii) inlet is used to accept the described first fiber band from one the first one-tenth band injector outlet side;

(iii) an air ejector is used for the described first fiber band of shredding; With

(iv) an outlet side is used to send described by the first fiber band of shredding;

(d) one second air-opening injection apparatus comprises:

(i) casing;

(ii) inlet is used to accept the described second fiber band from one the second one-tenth band injector outlet side;

(iii) an air ejector is used for the described second fiber band of shredding; With

(iv) an outlet side is used to send described by the second fiber band of shredding;

(e) be set at the device in the described first and second aerojet fibre-opening unit having downstreams, accept the described fiber band that is sent out and the optionally combination and controllably be mixed into a multi-fibre band of described fiber band.

19. the system of formation multi-fibre band according to claim 18, its feature exists: the width of the described outlet side of one of described first or second device is less than the width of the outlet side of another device, and the described multi-fibre band that the described outlet side at the described first and second aerojet fibre-opening unit havings is formed is that a fiber band is greater than another fiber band with regard to width.

20. the system of formation multi-fibre band according to claim 19 is characterized in that: every filament denier of the described fiber band that width is bigger is less than every filament denier of another fiber band.

21. the system of formation multi-fibre band according to claim 19, it is characterized in that: this system comprises a surfactant applicator that is placed in one of described first and second aerojet loosening devices or both inlet upstreams, is used for individually giving one of described fiber band or both to apply surfactant.

22. the system of formation multi-fibre band according to claim 21 is characterized in that: described surfactant only puts on the less described fiber band of width.

23. the system of formation multi-fibre band according to claim 19, it is characterized in that: this system comprises an adhesive applicator that is placed in one of described first and second aerojet loosening devices or both inlet upstreams, and one or two that is used for individually giving described fiber band applies adhesive.

24. the system of formation multi-fibre band according to claim 23 is characterized in that: described adhesive only puts on the bigger described fiber band of width.

25. the system of formation multi-fibre band according to claim 18 is characterized in that: described first and second devices can be controlled separately, thereby change the shredding of the described first and second fiber bands.

26. one kind is used for multi-fibre band of shredding and it is formed the method for the reservation shape that is suitable for use as the personal hygiene products absorbing structure, described method comprises step:

(b) have from one and move one second fibre bundle the fibre bundle packaging that is different from the predetermined dawn number of the every long filament of described first fibre bundle by one second device, make the long filament in described second fibre bundle be extended into one second fiber band, and send the described second fiber band with preset width;

(c) the described first fiber band from described first device is moved on to one first air-opening device, the described first fiber band of shredding, and send the described first fiber band thus;

(d) the described second fiber band that sends from described second device is moved on to one second air-opening device, the described second fiber band of shredding, and send the described second fiber band thus;

(e) optionally combination and controllably mix compound multi-fibre band of formation of the described first and second fiber bands that send from the described first and second air-opening injectors.

27. shredding multi-fibre band according to claim 26 also forms the method for reservation shape to its, it is characterized in that: the width of the fiber band that sends from one of described first or second device is less than the width of the fiber band that sends from another device, and making has one deck fiber band greater than another layer fiber band in the described multi-fibre band.

28. shredding multi-fibre band according to claim 27 also forms the method for reservation shape to its, it is characterized in that: every filament denier of the described fiber band that width is bigger is less than every filament denier of another fiber band.

29. shredding multi-fibre band according to claim 27 also forms the method for reservation shape to its, it is characterized in that: surfactant is imposed on the less described fiber band of width.

30. a woven webs comprises one first and second fibre bundle, each fibre bundle all has a plurality of continuous by the textile filament of shredding, so that do not fit each other between long filament.

31. woven webs according to claim 30 is characterized in that: the long filament of first and second fibre bundles mixes in the part of fibre web at least each other.

32. woven webs according to claim 30 is characterized in that: the long filament of first and second fibre bundles is to become lamination each other substantially at least in the part of fibre web.

33. woven webs according to claim 30 is characterized in that: the long filament of described first and second fibre bundles can be to have the different dawn number of every long filament.

34. woven webs according to claim 31 is characterized in that: the long filament of described first and second fibre bundles mixes in whole fibre web basically each other.

35. woven webs according to claim 31 is characterized in that: the long filament of described first and second fibre bundles mixes on the interface between first and second fibre bundles basically each other.

36. woven webs according to claim 30 is characterized in that: the long filament of one of first and second fibre bundles has a kind of fusible bicomponent fiber, is used for the long filament of first and second fibre bundles is bonded together.

37. woven webs according to claim 30 is characterized in that: also comprise super-absorbent polymer.

38. woven webs according to claim 30 is characterized in that: described first and second fibre bundles have different in width.