CN107735516A - The manufacture method of the fibrillation thing of the fibre bundle of strip - Google Patents
The manufacture method of the fibrillation thing of the fibre bundle of strip Download PDFInfo
- Publication number
- CN107735516A CN107735516A CN201580080998.3A CN201580080998A CN107735516A CN 107735516 A CN107735516 A CN 107735516A CN 201580080998 A CN201580080998 A CN 201580080998A CN 107735516 A CN107735516 A CN 107735516A
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- Prior art keywords
- fibrillation
- waveform
- particulate additives
- unit
- fibre bundle
- Prior art date
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Classifications
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
- D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
- D02J1/18—Separating or spreading
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
- D06M23/08—Processes in which the treating agent is applied in powder or granular form
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The present invention, which provides, can obtain the manufacture device of fibrillation thing that particulate additives are difficult to come off.The present invention provide with pre- fibrillation unit (1), fibrillation unit (2), expansion/shaping unit (3) elongated fibers tow fibrillation thing manufacture device.Fibrillation unit (2) has the addition portion (20) and fibrillation portion (30) of particulate additives, and addition portion (20) have waveform path.Waveform path has waveform entrance (24), and for the tow band through pre- fibrillation when by entrance (24), thickness direction section is shaped to waveform.Particulate additives enter and are held in the wave trough portion for being shaped to waveform.
Description
Technical field
The present invention relates to the fibre bundle of the strip for the manufacture material for being adapted as disposable diaper, cigarette filter etc.
Fibrillation thing manufacture device, and using its strip fibre bundle fibrillation thing manufacture method.
Background technology
Cellulosic acetate is in addition to as cigarette filter material, as disposable diaper, physiological articles
Used Deng hygienic material with absorber.
In order that silk ribbon has swollen degree, spinning operation is easily carried out, the tow of cellulose acetate fibril has been assigned curling.Volume
Bent fibril is transported with packing the state of bundled shape in cubical bale packing container with the state for being vented, compressing.So
Afterwards, when manufacturing final products, from fibrillation after bundle taking-up fibril, desired shape is shaped to afterwards.
In No. 3616323 publications of Japan Patent, it is proposed that following system：It will be taken using air fibrillation injection apparatus from bundle
The fibril fibrillation gone out, the tow through fibrillation is formed and is suitable to for example use as the absorbent structure for personal care product
Shape.
The problem of such be present in No. 3616323 publications of Japan Patent：Due to SAP (macromolecule water absorbent material) equigranular
Additive is added after air fibrillation, therefore is only capable of obtaining SAP skewness, is distributed in the upper table of fibrillation body mostly
The absorber in face (SAP adds side).
In Japanese Unexamined Patent Publication 2008-255529 publications, the fibrillation room for possessing section elliptical shape or toroidal is disclosed
Air fiber-opening apparatus.
The air fibrillation of air fiber-opening apparatus is used, fibrillation effect is high, is filled especially with columnar air fibrillation
Tow is can obtain when putting is arranged as random fibrillation body.
On the other hand, with regard to tow be arranged as random fibrillation body for, SAP is added after fibrillation, SAP is also difficult to
Into among fibrillation body.
Accordingly, there exist it is same with No. 3616323 publications of Japan Patent the problem of：It can only obtain the most skewness of SAP
Absorber.
In Japanese Unexamined Patent Publication 2011-241487 publications, a kind of manufacture device is disclosed, wherein, pre- fibrillation unit, fibrillation
Unit and expansion/shaping unit form the connected space for continuously delivering fibre bundle.
In the manufacture device of Japanese Unexamined Patent Publication 2011-241487 publications, due to carrying out air fibrillation after SAP is added,
Thus while can obtain it is homogeneous with the addition of SAP absorber, but the SAP added sometimes a part disperse and be difficult to remain
In fibrillation thing, this puts the leeway for still suffering from improvement.
The content of the invention
The problem of the present invention is to provide the manufacture device of the fibrillation thing for manufacturing elongated fibers tow, and uses and be somebody's turn to do
The manufacture method of the fibrillation thing of the elongated fibers tow of device, wherein, SAP (macromolecule water absorbent material) equigranular added
Additive is uniformly dispersing to be held in fibrillation thing, and above-mentioned granular additive easily residues in fibrillation thing (being difficult to come off).
As the method for solving problem, the present invention provides a kind of manufacture for being used to manufacture the fibrillation thing of elongated fibers tow
Device, wherein
Pre- fibrillation unit, fibrillation unit and expansion/shaping unit are to form for fibre bundle to be opened from the pre- of upstream side
The mode in the space for the connection that expansion/shaping unit of fine unit downstream side continuously delivers connects,
The fibrillation portion that fibrillation unit has the addition portion of particulate additives and is connected with addition portion,
The addition portion of above-mentioned particulate additives, which has, to be used to make to pass through in the tow band that pre- fibrillation unit has carried out pre- fibrillation
Waveform path,
Above-mentioned waveform path has opening into the entrance of waveform and the outlet of fibrillation portion side,
Continuously narrow from above-mentioned entrance towards above-mentioned outlet, width.
A kind of other solutions in the present invention as problem, there is provided elongated fibers silk using above-mentioned manufacture device
The manufacture method of the fibrillation thing of beam, this method include：
While the fibre bundle of curling is continued through, while the process for carrying out pre- fibrillation in pre- fibrillation unit,
In the addition portion of the particulate additives of fibrillation unit, the fibre bundle made through pre- fibrillation contacts with particulate additives
Process,
In the fibrillation portion of fibrillation unit, the tow band contacted with particulate additives is subjected to opening for fibrillation using air stream
Fine process,
In expansion/shaping unit, the fibre bundle through fibrillation is expanded, the process of shaping,
The process that the above-mentioned fibre bundle made through pre- fibrillation contacts with particulate additives includes：
By the way that the tow band that the pre- fibrillation of fibre bundle forms is imported into waveform path into the entrance of waveform by opening, with
After the section shape of thickness direction is carried out temporary shaping for the mode of waveform, particulate additives are added, thus make granular add
The process for adding agent to be held in the wave trough portion of the above-mentioned tow band for being shaped to waveform, and
By making it further in waveform path by the way that the waveform of particulate additives thus will be maintained in wave trough portion
The process that tow band is compressed in the width direction.
According to the manufacture device of the present invention and its manufacture method is used, the various grains added according to purpose can be obtained
The low-down fibrillation thing that comes off of shape additive.
Therefore, waste during fabrication diminishes, and the content of particulate additives can be also remained necessarily, accordingly it is also possible to carry
The quality of high product.
Brief description of the drawings
The present invention is further understood completely by detailed description below and accompanying drawing, but these are merely to illustrate this hair
Bright, the present invention is not limited except as.
[Fig. 1] Fig. 1 is to be cutd open suitable for axial from side of the manufacture device of the implementation of the manufacture method of the present invention
Face figure.
[Fig. 2] Fig. 2 is the profile of the horizontal direction of the addition portion main body of the manufacture device shown in Fig. 1.
[Fig. 3] Fig. 3 is the front elevation of the intake section of the fibre bundle of the addition portion main body of the manufacture device shown in Fig. 1.
[Fig. 4] Fig. 4 is the explanation figure of the manufacture method for the manufacture device for having used Fig. 1.
[Fig. 5] Fig. 5 is the level of the viewed in plan of expansion/shaping unit manufacture device different from Fig. 1 manufacture device
The profile in direction.
[Fig. 6] Fig. 6 is the expansion in Fig. 5 manufacture device, the stereogram of forming unit part.
[Fig. 7] Fig. 7 is the front of the intake section of fibre bundle corresponding with Fig. 3 of the manufacture device as prior art
Figure.In figure, symbol 1 represents pre- fibrillation unit, and symbol 2 represents fibrillation unit, and symbol 3 represents expansion/shaping unit, the table of symbol 10
Show fibre bundle, symbol 20 represents the addition portion of particulate additives, and symbol 21 represents addition portion main body, and symbol 27 represents addition
Hole, symbol 30 represent fibrillation portion, and symbol 31 represents main part, and symbol 32 represents spray nozzle part, and symbol 35 represents nozzle, the table of symbol 36
Show air supply hole, and symbol 40 represents leaf spring.
Embodiment
Detailed description of the invention
The manufacture device of the present invention has：Pre- fibrillation unit 1, the fibrillation unit 2 being connected with pre- fibrillation unit 1, with fibrillation
Expansion/shaping unit 3 that unit 2 connects.
By pre- fibrillation unit 1, fibrillation unit 2 and expansion/shaping unit 3, it is used for being formed by fibre bundle 10 from upstream
The mode in the space for the connection that expansion/shaping unit 3 of the pre- fibrillation unit 1 of side downstream side continuously delivers is attached.
Illustrate the manufacture device of the present invention below and use its manufacture method.
(1) the pre- fibrillation process in pre- fibrillation unit 1
In pre- fibrillation unit 1, taking-up filament ties between 1 two pairs of rollers 11 and 1 two pairs of rollers 12, to the fibre bundle of curling
10 continue through while carrying out pre- fibrillation.
In the case of without 1 two pairs of rollers gripping fibers tow 10, fibre bundle 10 can not obtain fully in fibrillation unit 2
Tension force.
The roller ratio of roller 11 and roller 12 is, for example, 1~3, and preferably 1.1~2.5, more preferably can be 1.2~2 or so.
Pre- fibrillation unit 1 and pre- fibrillation process in the segment number 45~46 of Japanese Unexamined Patent Publication 2008-255529 publications with remembering
What is carried is identical.
It should be noted that as long as pre- fibrillation process can control the action of fibre bundle 10 with gripping fibers tow 10
Method, can be for example with cause using air pressure narrow slit portion strength extruding structure method.
Fibre bundle 10 can be used described in [0042] of Japanese Unexamined Patent Publication 2008-255529 publications~[0044]
Fibre bundle.
Specifically, cellulose esters fiber (cellulose monoacetate, cellulose diacetate, tri acetic acid fiber can be illustrated
Cellulose acetate fiber such as element, cellulose-acetate propionate etc.), polyester fiber, polyamide-based fiber, acrylic fiber,
Olefine fibre, polyvinyl alcohol fiber etc..Fiber can be single fiber, can be that composite fibre can also be blend fibre.
Particularly preferred cellulose acetate fiber.
(2) in fibrillation unit 2 (addition portion 20), the process that makes the fibre bundle through pre- fibrillation be contacted with particulate additives
While the fibre bundle (tow band) 10 through pre- fibrillation is continuously sent to the addition portion 20 of fibrillation unit 2, while making
It is contacted with particulate additives, carries out fibrillation in fibrillation portion 30 afterwards.
Addition portion 20 has the addition portion main body 21 for being axially formed the through hole for delivering fibre bundle 10.
Addition portion main body 21 has waveform path 25 as shown in Figure 2.
Waveform path 25 has：Opening as shown in Figure 3 is into the entrance (waveform entrance) 24 of waveform, the and (cylinder of fibrillation portion 30
1st main part 37 of shape) side outlet 26.
Because waveform entrance 24 is waveform (W fonts), therefore there are multiple trough portion 24a and multiple crest portion 24b.
Addition portion main body 21 with waveform path 25, can for example combine metal mold 22 and metal
Lower mould 23 and formed.
It should be noted that in the addition portion 20 of Fig. 1 of Japanese Unexamined Patent Publication 2011-241487 publications manufacture device,
It can confirm that entrance is approximate oval for rectangle (entrance 124) as shown in Figure 7 or with it.
The width of waveform entrance 24 can be adjusted according to the difference of the product of target, be absorbed in manufacture paper nappy etc.
During body, 5~20cm of width scope can be set to.
, can be by the interval between the adjacent wave valley 22a of lower mould 22 and adjacent peaks when width is above range
Interval between portion 22b is set to 1~5cm scope.The trough portion 23a and crest portion 23b of mold 23 interval also with this phase
Together.
Can be by the trough portion 22a of waveform entrance 24 depth (from the trough portion 23a of mold 23 to the ripple of lower mould 22
Valley 22a length) it is arranged to 10~50mm.
The width of waveform path 25 from waveform entrance 24 to outlet 26 as shown in Fig. 2 continuously narrow.
The ratio (W1/W2) of the width (W1) of waveform entrance 24 and the width (W2) of outlet 26 is preferably 2~10, more preferably
5~7.
Although waveform path 25 can be formed at the entirety untill outlet 26 from waveform entrance 24, outlet 26 is not necessarily
It must be waveform, can also further there is the part 26a for not forming waveform path near outlet 26 as shown in Figure 2.
Length from waveform entrance 24 to outlet 26 could be arranged to 10~30cm.
In order to suppress the damage of tow band 10, the respective fore-end of trough portion 24a and crest portion 24b of waveform entrance 24
Circle can be carried or tabular surface is made.
This circular, tabular surface can be in a part (for example, only near entrance 24) or overall for waveform path 25
Formed (from entrance 24 to the scope of outlet 26).
The added holes 22 for the particulate additives that main body 21 is formed formed with through-thickness in addition portion, added holes 22 and material
The connection of bucket 23.Added holes 22 connects with being formed at the through hole of the addition portion main body 21 for delivering fibre bundle 10.
Addition portion main body 21 can be separated into 2 along its length as shown in Figure 1, and the part separated is formed
Have and be used for deflationary steam vent 24, if there is steam vent 24,2 can not also be separated into.It should be noted that
In the case of being separated into 2, waveform path 25 does not also separate.
Steam vent 24 can with well-known bent hole (for example it is known that the extrusion for being arranged at resin forming
The bent hole of machine etc.) it is identical.
Below, the adding method of the particulate additives in the addition portion 20 using fibrillation unit 2 is illustrated.
So that the tow band 10 through pre- fibrillation is initially introduced into the waveform entrance 24 in addition portion 20 in pre- fibrillation unit 1,
Outlet 26 is reached by waveform path 25 at from this.
In such a process, if adding particulate additives 60 from hopper 23 and added holes 22, it is directly entered ripple
Valley point enters wave trough portion with wave crest portions collision rift.Therefore, as shown in Fig. 4 (a), the section shape in thickness direction is formed
The state of particulate additives 60 for the wave trough portion of the tow band 10 of waveform be present in shape.
Afterwards, because the tow band 10 of the waveform of the state with Fig. 4 (a) is moved in waveform path 25 to 26 directions of outlet
It is dynamic, the narrowed width of waveform path 25, hence in so that between adjacent trough and adjacent crest is each other with side close to each other
Formula is compressed (or folding) in the width direction.
As a result, as shown in Fig. 4 (b), Fig. 4 (c), the tow band 10 of the waveform compressed in the width direction is to wrap into granular
The mode of additive 60 deforms, therefore the stage before fibrillation, and particulate additives 60 also become to be difficult to take off from tow band 10
Fall.
Particulate additives select according to the purposes (performance that should possess) of the fibrillation thing of the fibre bundle 10 finally given
Select, have no particular limits.As particulate additives, the absorbent resin for the purpose that absorbs water or even water-soluble tree can be used
Fat (SAP etc.), resin, activated carbon for deodorization purpose etc..The particle size range of particulate additives determines according to purposes.
Relative to the quality (100 mass parts) of fibre bundle 10, the addition of particulate additives is preferably 100~800 matter
Measure part, more preferably more preferably 200~600 mass parts, 250~450 mass parts.
Due to the manufacture method according to the manufacture device using the present invention, easily by particulate additives relative to fibre bundle
10 fibrillation thing is kept, therefore can be added and be kept the particulate additives than fibre bundle quality volume.
(3) in fibrillation unit 2 (fibrillation portion 30), the fibre bundle contacted with particulate additives is carried out using air stream
The fibrillation process of fibrillation
Below, in fibrillation process, the fibre bundle 10 contacted with particulate additives is subjected to fibrillation using air stream.
First, the structure in the fibrillation portion 30 of fibrillation unit 2 is illustrated.
Fibrillation portion 30 is formd outer using the main part 31 of the 2nd main part 38 comprising the main part 37 of tubular the 1st and tubular
Shell, the both ends open of main part 31, the opening portion of a side (side of addition portion 20) are connected with addition portion main body 21, another side
Opening portion 31b is connected with expansion/shaping unit 3.
The external diameter of 1st main part 37 can also be set to identical with the external diameter of the 2nd main part 38.
Spray nozzle part 32 is configured with the inside of the side of addition portion 20 of the 1st main part 37.Spray nozzle part 32 has axle portion 33 and arrow
Head 34, have and penetrate they and the nozzle (nozzle of slit-shaped) 35 of the front opening in arrow portion 34.
Formed with the gas supply hole 36 connected with inside in the 1st main part 37.Gas supply hole 36 and spray nozzle part 32
The face of axle portion 33.
It is equal with being spaced apart into for the inner peripheral surface 31a of the 1st main part 37 for the axle portion 33 of spray nozzle part 32 and arrow portion 34
Equally spaced gap and be configured.
Above-mentioned gap is smaller, and relatively the air suction pressure from air supply hole 36 is bigger (inhaled air volume is smaller)
And the motive force of fibre bundle 10 improves, above-mentioned gap is bigger, and relatively the air suction pressure from air supply hole 36 is got over
Small (inhaled air volume is bigger), it can also turn into particulate additives to the side contrainjection of air supply hole 36 and the reason for disperse.
It is therefore preferable that the width in above-mentioned gap is smaller, but if excessively small, productivity can reduce, therefore preferably above-mentioned
The width of gap is 0.3~1.0mm scope.
For the 1st main part 37, the 1st fibrillation area that the internal diameter of the part of spray nozzle part 32 is larger, is contiguous therewith is configured with
(Z1) internal diameter it is relatively small and internal diameter is homogeneous.Nozzle 35 is towards the 1st fibrillation area (Z1).Open the 1st formed by the 1st main part 37
Fine area (Z1) width section for circle.
In the 2nd fibrillation area (Z that the 2nd main part 38 is formed2) it is from the 1st fibrillation area (Z1) and the 2nd fibrillation area (Z2) border
Scopes of the portion 38a untill the opening portion 38b of the side of expansion/shaping unit 3.
The external diameter of 2nd main part 38 is less than the 1st main part 37, but the internal diameter (internal diameter and the 1st main body in the 2nd fibrillation area (Z2)
Portion 37 is identical.
2nd fibrillation area (Z2) width section for circle.
The nozzle footpath of nozzle 35 is according to the particulate additives in the fibrillation thing of the fibre bundle 10 of the strip as target
Holding form and maintenance dose (content) and be adjusted.That is, by adjusting the nozzle footpath of nozzle 35, filament can be controlled
The holding form and maintenance dose (content) of absorbent in the fibrillation thing of beam 10.
The nozzle footpath of nozzle 35 is preferably the scope of 5~30mm scope, more preferably 5~25mm.
1st fibrillation area (Z1) and the 2nd fibrillation area (Z2) internal diameter size can be set to nozzle 35 nozzle footpath 3~10
Times or so.In addition from the viewpoint of productivity, when total danier of fibre bundle 10 is 35000, preferably the 1st fibrillation area
(Z1) and the 2nd fibrillation area (Z2) internal diameter size be 20mm, can proportionally be increased or decreased with the numerical value of total danier.
Below, the fiber opening method in fibrillation portion 30 is illustrated.
(section shape of thickness direction is the tow of waveform to the fibre bundle contacted in addition portion 20 with particulate additives
Band) 10, by spray nozzle part 32, being transported from nozzle 35 to the 1st fibrillation area Z in main part 311。
In this stage, particulate additives exist to be encased to the state of the tow band 10 of folded state in the width direction,
Contacted with the gas stream (air stream) supplied from gas supply opening 36 into main part 31.
Due to the face of axle portion 33 of gas supply opening 36 and spray nozzle part 32, therefore in air supply, air it is not direct with
Tow band 10 is collided.
If the air pressure supplied from gas supply opening 36 is excessively high, stagnant in ensuing expansion/trimming
The time is stayed to shorten, existing to expand becomes insufficient hidden danger, therefore preferably below 0.3MPa scope, more preferably 0.01~
0.3MPa scope.
The air supplied from gas supply opening 36 forms the flowing to expansion cell 3 (opening portion 31b) direction, with this state
With being transported from nozzle 35 to the 1st fibrillation area Z1Tow band 10 contact.Afterwards, using air pressure by the through-thickness of tow band 10
Expand and carry out fibrillation.
It should be noted that in above-mentioned operation, because air stream is at the rear portion of spray nozzle part 32 and the front end of spray nozzle part 32
Portion (the 1st fibrillation area Z1) pressure differential is produced, the leading section side of spray nozzle part 32 is high pressure.If state as keeping, is added
Particulate additives can disperse from the rear end of spray nozzle part 32, it is difficult to increase addition.
But by provided with steam vent 24 as described above, from this at release air and be changed into normal pressure, as a result, anti-tablet
Shape additive disperses, and can make the addition of particulate additives increase.
(4) fibre bundle through fibrillation in expansion/shaping unit 3 is expanded, the process of shaping
Will in fibrillation process (fibrillation unit 2) fibrillation maintain particulate additives fibre bundle 10 be sent into expansion/
Shaping unit 3, make its expansion while shaping.
First, the structure of expansion/shaping unit 3 is illustrated.
Expansion/shaping unit 3 is used to make to expand from the fibre bundle 10 through fibrillation that fibrillation unit 2 is sent out, and externally
Shape carries out shaping.Expansion/shaping unit 3 connects via joint 50 relative to main part 31.
Expansion/shaping unit 3 shown in Fig. 1, Fig. 5 has multiple leaf springs (or the bar for the internal face for being installed on joint 50
Spring) 40, the section of the width of the joint 50 is rectangle or ellipse.
As shown in figure 1, when from side, multiple leaf springs 40 are installed in a manner of to form the thinner shape in head
Joint 50.
By installing multiple leaf springs 40 as described above, due to from the 2nd fibrillation area Z2During the fibrillation tow expansion of extrusion,
Extruded by multiple leaf springs 40 from surrounding and play shaping operation, therefore successfully carry out shaping.
Long axial length (the long length of side)/short axle length (short side length) of joint 50 meets 2~10 relation.Long axial length (the long length of side)/
Short axle length (short side length) is preferably 3~8, and more preferably 4~7.
As long as the section of the width of expansion/shaping unit 3 is meets the section of the shape of above-mentioned relation, preferably
For the section selected from following shape：Ellipse, the corner of rhombus and its face are the section of the shape comprising circular arc, rectangle,
Rectangular corner includes the section of circular arc for the section of the shape comprising circular arc and the side of rectangular face.
The internal diameter of expansion/shaping unit 3 is preferably more than 1 times of the external diameter of main part 31 (the 1st main part 37), more preferably
1~1.4 times.
The length (length of leaf spring 40) of expansion/shaping unit 3 can be set to such as 150~350mm scope.
By making expansion/shaping unit 3 be given shape, can adjust the fibrillation thing finally given section shape and
Width.
In the manufacture device of the present invention, preferably as shown in Figure 6 in multiple leaf springs 40 of expansion/shaping unit 3
Inner side is provided with the net component of tubular.
The section shape of the net component 45 of tubular is identical with the section shape of joint 50.
The length (L2) of the net component 45 of tubular is from the 30% of the length (L1) of the leaf spring 40 for the part that joint 50 protrudes
Following length, the length of preferably 10~30% scope.
It should be noted that the inner side for the leaf spring 40 being preferably in joint 50 is also covered with net component 45.
The size of the opening of net component 45 is that air can be by but less than being added using the addition portion of particulate additives
The particulate additives 60 added.
For the size of the opening of net component 45, the diameter (D1) when opening shape is set into circle is preferably granular
Less than 70% size of the most path (Dmin) of additive 60, more preferably less than 60% size, further preferred 55% with
Under (such as 45~55%) size.
In the case of beyond opening shape is circle, D1 is diameter when being converted into of the same area circular.
Dmin is diameter for example in the case where particulate additives are cylinder.
Net component 45 can use metal net, plastic net.
Below, the expansion in expansion/shaping unit 3, shaping methods are illustrated.
The fibre bundle 10 through fibrillation of particulate additives will be maintained in fibrillation process, be sent to opening than main part
Big expansion/the shaping unit 3 of oral area 31b diameters.
In this process, the fibre bundle 10 through fibrillation expands, but due to being acted on caused by the elasticity of leaf spring 40, mistake
The expansion of degree is suppressed, and is shaped as the shape of wider width corresponding with the section shape of expansion/shaping unit 3.
In expansion/trimming so that the fibrillation thing of tow band 10 is further extruded after temporary delay, and is led to
Above-mentioned delay is crossed, particulate additives do not disperse but are held in the fibrillation thing of tow band 10.
In the prior art, particulate additives can disperse sometimes in the expansion, molding procedure.This is due in grain
When shape additive is attached to the surface of expander (tow band expander) of the tow band through fibrillation, above-mentioned particulate additives due to
The air stream that flowing comes from fibrillation portion 30 flies up.
But in the manufacture device of the present invention, because most particulate additives are to be typically entrapped within tow band expander
Internal state, therefore, even if by above-mentioned air stream, particulate additives will not also fly up.
In addition, even in minimal amount of particulate additives to be attached to the surface of tow band expander under such circumstances,
The net component 45 of the tubular shown in Fig. 5 is extruded from inner side due to tow band expander and is sealed, therefore even if granular addition
Agent is due to when air stream flies up, being also prevented from it and dispersing and come off.
After expansion/trimming, tow fibrillation thing is continuously extruded from expansion/shaping unit 3, can obtain maintaining granular
The tow band expander of the strip of additive.
(tow band is swollen for the tow fibrillation thing of the strip obtained by using the manufacture method of the manufacture device of the present invention
Swollen body), the manufacture that may be used as the hygienic material absorber such as cigarette filter material, disposable diaper, physiological articles is former
Material.
Embodiment
Embodiment 1
Having manufactured cellulose diacetate fibre bundle using the manufacture device shown in Fig. 1, (2.2 fibril daniers, Y types cut open
Face, total danier 25000) fibrillation thing.
The opening portion (waveform entrance) of addition portion main body is that the depth in trough portion is 35mm, between adjacent trough portion between
It is divided into 30mm.
Expansion/shaping unit 3 has used totally 8 leaf springs (thickness 1.2mm, width 6mm, long 150mm).
As particulate additives, SAP ((strain) sundia systems) has been used with 7.5g/ tow 2g ratio.
Air pressure from air supply hole 36 is set to 0.15MP.Running speed (travelling speed of fibre bundle 10) exists
150m/min scope is adjusted.
(SAP particle diameter distribution)
Less than 149 μm：0 mass %
Higher than 149~420 μm：52 mass %
Higher than 420~590 μm：41 mass %
Higher than 590~840 μm：7 mass %
Higher than 840~1680 μm：0 mass %
Embodiment 2
The manufacture device shown in the Fig. 1 for the net component 45 for possessing the tubular shown in Fig. 5 in expansion/shaping unit 3 has been used,
Carry out similarly to Example 1 in addition, manufactured the fibrillation thing of cellulose fibre tow.
The net component of tubular has used the net component for the nylon that length (L2) is 50mm.Opening diameter is 77 μm.
Comparative example 1
The device shown in Fig. 1 of Japanese Unexamined Patent Publication 2011-241487 publications is used, in addition similarly to Example 1
Implement on ground.
Comparative example 2
The Japanese Unexamined Patent Publication 2011- for the net component 45 for possessing the tubular shown in Fig. 5 in expansion/shaping unit 3 is used
Device shown in Fig. 1 of No. 241487 publications, implements similarly to Example 1 in addition.
(expulsion rates of particulate additives)
It is a certain amount of from fibrillation thing (expander) taking-up after expansion, shaping, isolate and be held in its polymeric absorbent
Particle and measure quality.
The quality of the polymeric absorbent particle of taking-up as described above, and incipient polymeric absorbent particle are used
Addition (polymeric absorbent particle is with 7.5g/ tow 2g ratio), expulsion rate is obtained by following formula.Show the result in table 1.
The polymeric absorbent mass particle (g)/swollen in fibrillation thing (expander) after expulsion rate (%)=expansion, shaping
Quality (g) × 7.5/2 × 100 of fibrillation thing (expander) after swollen, shaping
[table 1]
As above the present invention is described.Obviously, the present invention includes the change of various modes in its scope, and these changes are not
Deviate the scope of the present invention.In addition, all deformations for being significantly considered the present invention to those skilled in the art are so
Situation, be included in scope of the following claims.
Claims (7)
1. a kind of manufacture device for being used to manufacture the fibrillation thing of elongated fibers tow, wherein
Pre- fibrillation unit, fibrillation unit and expansion/shaping unit are to form for the pre- fibrillation list by fibre bundle from upstream side
The mode in the space for the connection that expansion/shaping unit of first downstream side continuously delivers connects,
The fibrillation portion that fibrillation unit has the addition portion of particulate additives and is connected with addition portion,
The addition portion of the particulate additives, which has, to be used to make to have carried out the ripple that the tow band of pre- fibrillation passes through in pre- fibrillation unit
Shape path,
The waveform path has opening into the entrance of waveform and the outlet of fibrillation portion side,
Continuously narrow from the entrance towards the outlet, width.
2. the manufacture device according to claim 1 for being used to manufacture the fibrillation thing of elongated fibers tow, wherein, it is described to open
Mouthful into waveform entrance, width is 5~20cm scope, between the interval and adjacent trough between adjacent peaks at intervals of 1
~5cm scope.
3. the manufacture device according to claim 1 or 2 for being used to manufacture the fibrillation thing of elongated fibers tow, wherein, institute
The ratio (W1/W2) for stating the width (W1) of the entrance of waveform path and the width (W2) of the outlet of the waveform path is 2~10
Scope.
4. according to it is according to any one of claims 1 to 3 be used for manufacture elongated fibers tow fibrillation thing manufacture device,
Wherein, the addition portion of the particulate additives is that mold and lower die assembly form, and passes through the mold and the lower mould
Tool combines and forms the waveform path.
5. according to it is according to any one of claims 1 to 4 be used for manufacture elongated fibers tow fibrillation thing manufacture device,
Wherein, the internal face of joint of the expansion/shaping unit in tubular is provided with multiple leaf springs, and in the multiple leaf spring
Inner side is provided with the net component of tubular.
6. according to it is according to any one of claims 1 to 4 be used for manufacture elongated fibers tow fibrillation thing manufacture device,
Wherein,
Expansion/shaping unit is provided with multiple leaf springs in the internal face of the joint of tubular, and in the inner side of the multiple leaf spring
The net component of tubular is installed,
The size of the opening of the net component is less than the particulate additives added in the addition portion of the particulate additives.
A kind of 7. system of the fibrillation thing of the elongated fibers tow of the manufacture device any one of usage right requirement 1~6
Method is made, it includes：
While the fibre bundle of curling is continued through, while the process for carrying out pre- fibrillation in pre- fibrillation unit,
In the addition portion of the particulate additives of fibrillation unit, the work that makes the fibre bundle through pre- fibrillation be contacted with particulate additives
Sequence,
In the fibrillation portion of fibrillation unit, the fibre bundle contacted with particulate additives is carried out to the fibrillation work of fibrillation using air stream
Sequence,
In expansion/shaping unit, the fibre bundle through fibrillation is expanded, the process of shaping,
The process that the fibre bundle made through pre- fibrillation contacts with particulate additives includes：
By the way that the tow band that the pre- fibrillation of fibre bundle forms is imported into waveform path into the entrance of waveform by opening, so that thick
After the section shape in degree direction carries out temporary shaping for the mode of waveform, particulate additives are added, thus make particulate additives
The process of the wave trough portion of the tow band for being shaped to waveform is held in, and
By making it further in waveform path by the way that the waveform tow band of particulate additives thus will be maintained in wave trough portion
The process compressed in the width direction.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2015/067718 WO2016203641A1 (en) | 2015-06-19 | 2015-06-19 | Method for manufacturing opened fiber material formed of long fiber tow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107735516A true CN107735516A (en) | 2018-02-23 |
Family
ID=57545541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580080998.3A Pending CN107735516A (en) | 2015-06-19 | 2015-06-19 | The manufacture method of the fibrillation thing of the fibre bundle of strip |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107735516A (en) |
| WO (1) | WO2016203641A1 (en) |
Cited By (2)
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| CN112041488A (en) * | 2018-08-23 | 2020-12-04 | 株式会社大赛璐 | Fiber-opening body forming device and fiber-opening body manufacturing device |
| CN112584805A (en) * | 2018-11-19 | 2021-03-30 | 株式会社大赛璐 | Method for manufacturing absorbent article, absorbent article manufacturing apparatus, absorbent article, and absorbent body |
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| WO2018142627A1 (en) * | 2017-02-06 | 2018-08-09 | 株式会社ダイセル | Tow opening device, fiber sheet manufacturing device using same, and fiber sheet manufacturing method |
| JP6793570B2 (en) * | 2017-02-23 | 2020-12-02 | 株式会社ダイセル | Absorbent article manufacturing equipment and method of manufacturing absorbent articles |
| JP2021085112A (en) | 2019-11-27 | 2021-06-03 | セイコーエプソン株式会社 | Method and apparatus for forming fiber body |
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| WO2016203641A1 (en) | 2016-12-22 |
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