CN102733095B - Method for manufacturing non-woven fabric thin layer - Google Patents
Method for manufacturing non-woven fabric thin layer Download PDFInfo
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- CN102733095B CN102733095B CN201110193357.2A CN201110193357A CN102733095B CN 102733095 B CN102733095 B CN 102733095B CN 201110193357 A CN201110193357 A CN 201110193357A CN 102733095 B CN102733095 B CN 102733095B
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- spunbond
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- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 33
- 239000004745 nonwoven fabric Substances 0.000 title abstract description 17
- 238000009987 spinning Methods 0.000 claims abstract description 101
- 239000000835 fiber Substances 0.000 claims abstract description 90
- 239000002994 raw material Substances 0.000 claims abstract description 35
- 229920000642 polymer Polymers 0.000 claims abstract description 15
- 238000005507 spraying Methods 0.000 claims description 42
- 238000007493 shaping process Methods 0.000 claims description 41
- 239000000126 substance Substances 0.000 claims description 25
- 238000006116 polymerization reaction Methods 0.000 claims description 19
- 238000000465 moulding Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 4
- 230000000994 depressogenic effect Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 14
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000001523 electrospinning Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000018984 mastication Effects 0.000 description 2
- 238000010077 mastication Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 238000006664 bond formation reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
Landscapes
- Nonwoven Fabrics (AREA)
Abstract
A method for manufacturing a non-woven fabric thin layer object comprises the following steps: step A: melting the polymer raw material, step B: drawing the molten polymer raw material into spinning fibers, and step C: collecting the layer spinning fiber in a forming die to form a thin layer object, wherein the forming die is provided with a plurality of concave-convex structures, and when the thin layer object is formed in the forming die, a flow guide structure corresponding to the concave-convex structures is formed at the same time. The invention combines the forming process of the flow guide structure of the thin layer object with the forming process of the non-woven fabric, thereby shortening the length of a production line and the conveying time of the non-woven fabric.
Description
Technical field
The present invention relates to a kind of manufacture method of thin nonwoven layers thing, particularly relate to a kind of thin nonwoven layers thing manufacture method in conjunction with nonwoven fabric moulding process and flow-guiding structure moulding process.
Background technology
Amenities conventional in daily life, as diaper, cotton wool etc., it generally includes the thin-layer substance that an absorber and is coated on absorber periphery, the material of thin-layer substance can be nonwoven fabric, and thin-layer substance is in order to directly to contact with health skin, therefore, this thin-layer substance must possess the flow-guiding structure that can play water conservancy diversion and prevent from bleeding back function usually.
In the technique of this thin nonwoven layers thing in the past, normally utilize after spunbond or melt blown technology is molded into netted nonwoven fabric, again shaping nonwoven fabric is sent to formation mould, nonwoven fabric is molded have the flow-guiding structure of holes and/or concaveconvex structure, but, such technique not only makes the length of whole product line longer, and the time-histories of the processed conveying of nonwoven fabric is also more of a specified duration.
Summary of the invention
The object of this invention is to provide and a kind of the shaping of flow-guiding structure is incorporated in the moulding process of nonwoven fabric, make nonwoven fabric in forming process, form the thin nonwoven layers thing manufacture method of flow-guiding structure simultaneously.For realizing object of the present invention and beneficial effect, technical scheme of the present invention is as follows:
The manufacture method of thin nonwoven layers thing of the present invention comprises following steps:
Steps A: melt polymerization raw material.
Step B: melt polymerization raw material is pumped into spinning fibre.
Step C: collect layer spinning fibre and form skim thing in a molding, this shaping mould has multiple concaveconvex structure, when this thin-layer substance is formed at this shaping mould, forms the flow-guiding structure of corresponding described concaveconvex structure simultaneously.
Object of the present invention and beneficial effect also realize further by following technical scheme:
The manufacture method of this thin nonwoven layers thing is undertaken by a melt-spraying spinning device, in this steps A, and this melt-spraying spinning device melt polymerization raw material; In this step B, utilize this melt-spraying spinning device that polymer raw material is pumped into melt-spraying spinning fiber; In this step C, this melt-spraying spinning fiber collection layer one meltblown fiber web layer is formed this thin-layer substance.
In this step B, be pumped into this melt-spraying spinning fiber by hot blast drawing-off.
The manufacture method of this thin nonwoven layers thing is undertaken by a spunbond device for spinning, in this steps A, and this spunbond device for spinning melt polymerization raw material; In this step B, utilize this spunbond device for spinning that polymer raw material is pumped into spunbond spinning fibre; In this step C, this spunbond spinning fibre collection layer one spun-bonded fibre stratum reticulare is formed this thin-layer substance.
In this step B, be pumped into this spunbond spinning fibre by cooling drawing-off.
Simultaneously the manufacture method of this thin nonwoven layers thing utilizes a spunbond device for spinning and a melt-spraying spinning device to carry out, in this steps A, and this spunbond device for spinning and this melt-spraying spinning device melt polymerization raw material respectively; In this step B, polymer raw material is pumped into spunbond spinning fibre by this spunbond device for spinning, by this melt-spraying spinning device, polymer raw material is pumped into melt-spraying spinning fiber; In this step C, this spunbond spinning fibre becomes a spun-bonded fibre stratum reticulare in this shaping mould collection layer, and this melt-spraying spinning fiber collects layer one meltblown fiber web layer and forms this thin-layer substance on this spun-bonded fibre stratum reticulare.
In this step B, be pumped into this spunbond spinning fibre by cooling drawing-off, be pumped into this melt-spraying spinning fiber by hot blast drawing-off.
The step D that the manufacture method of this thin nonwoven layers thing is carried out before being also contained in this step B: filter and this melt polymerization raw material of metering.
In this step C, be make this spinning fibre be adsorbed on this shaping mould by negative pressure.
In this step C, when this this thin-layer substance of spinning fibre collection layer, this thin-layer substance is heated simultaneously.
Beneficial effect of the present invention is: the spinning fibre that utilization is pumped into still is in hot mastication state to a certain degree when collecting layer and becoming to net, and the shaping of flow-guiding structure is carried out to it simultaneously, make spinning fibre collection layer is into the net while, just flow-guiding structure can be molded, shorten the length of whole product line, and shorten the time-histories of the processed conveying of nonwoven fabric, reach and save operation and the effect reduced costs.
It should be understood that within the scope of the present invention, above-mentioned each technical characteristic of the present invention and can combining mutually between specifically described each technical characteristic in below (eg embodiment), thus form new or preferred technical scheme.As space is limited, tiredly no longer one by one to state at this.
Accompanying drawing explanation
Fig. 1 is the flow chart of steps of a preferred embodiment of the manufacture method of thin nonwoven layers thing of the present invention;
Fig. 2 is the machining sketch chart of this preferred embodiment;
Fig. 3 is the enlarged cross-sectional view of a molding of this preferred embodiment;
Fig. 4 is the stereogram of this shaping mould of this preferred embodiment;
Fig. 5 is the machining sketch chart that the manufacture method of thin nonwoven layers thing of the present invention applies the change mode of a melt-blown process; And
Fig. 6 is the machining sketch chart that the manufacture method of thin nonwoven layers thing of the present invention applies the change mode of a spunbond process.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in detail:
Consult Fig. 1 and Fig. 2, a preferred embodiment of the manufacture method of thin nonwoven layers thing of the present invention is in order to manufacture the thin nonwoven layers thing with flow-guiding structure, simultaneously this manufacture method utilizes a spunbond device for spinning 2 and a melt-spraying spinning device 3 to carry out, and it comprises following steps:
Step 11: melt polymerization raw material.Consult Fig. 2, simultaneously this step polymer raw material is sent into spunbond device for spinning 2 with the hopper 21,31 of melt-spraying spinning device 3, spunbond device for spinning 2 is utilized to carry out extruding and high-temperature fusion operation with the extruding screw 22,32 of melt-spraying spinning device 3 respectively, after making polymer raw material form molten condition, then through melt filtration and melt-stoichiometry.
Step 12: melt polymerization raw material is pumped into spinning fibre.Consult Fig. 2, spunbond device for spinning 2 and the melt polymerization raw material in melt-spraying spinning device 3 are after filtering and measuring, then spinning fibre is pumped into, polymer raw material can be such as polypropylene (PP), polyester (PET), the thermoplastic polymer raw materials such as nylon (NYLON), wherein, melt polymerization raw material in spunbond device for spinning 2 is in the mode of an electrospinning unit 23 by cooling drawing-off, namely under air-conditioning cooling wind action, pull becomes continous mode long fiber, namely spunbond spinning fibre is formed, and the melt polymerization raw material in melt-spraying spinning device 3, then in the mode of an electrospinning unit 33 by hot blast drawing-off, namely under high-temperature gas effect, pull becomes fine fibre, namely melt-spraying spinning fiber is formed.
Step 13: collect layer spinning fibre and form in a molding 4 thin-layer substance 5 that has flow-guiding structure.In the present embodiment, first make spunbond spinning fibre on a molding 4, collect layer to become spun-bonded fibre stratum reticulare, then make melt-spraying spinning fiber on spun-bonded fibre stratum reticulare, collect layer more again and become a meltblown fiber web layer, and meltblown fiber web layer combines with spun-bonded fibre stratum reticulare and forms skim thing 5.
Simultaneously with reference to Fig. 3, Fig. 4, the shaping mould 4 that the present embodiment uses comprises one first shape layer 41 and overlapped second shape layer 42 above the first shape layer 41 being web plate form, and the shaping mould 4 of the present embodiment is sheathed on cylinder 43 and drives displacement to form the form of similar conveyer belt by the rotation of cylinder 43.
First shape layer 41 has multiple mesh 411, second shape layer 42 has multiple rib 421 structure be connected, when the second shape layer 42 overlapped in the first shape layer 41 time, rib 421 and mesh 411 are formed into the concaveconvex structure of pattern 4, the structure of aforementioned shaping mould 4 is exemplary explanation, certainly, the structure of shaping mould 4 is flow-guiding structure shaping on thin-layer substance and determines, and is not limited with above-mentioned structure.
The inner side that shaping mould 4 is positioned at the first shape layer 41 is also provided with a negative pressure unit 6, when spunbond spinning fibre and melt-spraying spinning fiber successively collect layer in shaping mould 4, because spunbond spinning fibre now and melt-spraying spinning fiber still have certain high temperature and hardened forming not yet completely, therefore, coordinate the negative pressure that negative pressure unit 6 provides, spunbond spinning fibre and melt-spraying spinning fiber can be made to be easier to bonding formation thin-layer substance 5, in addition, another effect arranging negative pressure unit 6 is, because the spun-bonded fibre stratum reticulare and meltblown fiber web layer that now collect layer yet have certain pliability, so, by the suction-operated of negative pressure unit 6, also be easier to make thin-layer substance 5 along with rib 421 structure of shaping mould 4 rise and fall and formed multiple fin 51 with by described fin 51 around the depressed area 52 defining out, be described flow-guiding structure.
What remark additionally is, because spunbond spinning fibre and melt-spraying spinning fiber successively collect layer in shaping mould 4, therefore, after the spun-bonded fibre stratum reticulare that first collection layer is formed can first mold the flow-guiding structure of corresponding concaveconvex structure on shaping mould 4, when the meltblown fiber web layer that collection layer is formed is incorporated into spun-bonded fibre stratum reticulare, reshaping goes out the flow-guiding structure of corresponding concaveconvex structure, in other words, when spun-bonded fibre stratum reticulare and meltblown fiber web layer are molded on shaping mould 4 respectively, just mold flow-guiding structure respectively.Certainly, first collect spun-bonded fibre stratum reticulare that layer formed also can wait meltblown fiber web layer combined thereon after, then mold the flow-guiding structure of corresponding concaveconvex structure together, be not limited with this shaping order.
Therefore, as mentioned above, the present embodiment becomes net by making spunbond spinning fibre and melt-spraying spinning fiber directly collect layer on the shaping mould 4 in order to mold flow-guiding structure, makes nonwoven fabric in process into the net, directly form the flow-guiding structure of corresponding shaping mould.Subsidiary one carries, and is formed at fin 51 on thin-layer substance 5 mainly when thin-layer substance is for amenities, can destroys the surface tension of fluid, make fluid can be broken to the less globule and easily through depressed area toward surrounding diverging flow, reach the effect of water conservancy diversion.
What remark additionally is, aforesaid shaping mould 4 makes thin-layer substance 5 form fin, but in fact, when thin-layer substance 5 is adsorbed on shaping mould 4, except forming fin 51, by adjusting the adsorption strength of negative pressure unit 6, thin-layer substance 5 also can be allowed to form the holes (not shown) can passed through for fluid.In addition, when spunbond spinning fibre and melt-spraying spinning fiber collect layer in shaping mould 4, if its pliability is not enough to make it be obedient to shaping mould 4, also heat by arranging extra heater more again make it soften to collecting the spun-bonded fibre stratum reticulare of layer on shaping mould 4 and meltblown fiber web layer, contribute to that it is bonding and be obedient to shaping mould 4.
What remark additionally is again, simultaneously the manufacture method of the present embodiment utilizes a spunbond device for spinning 2 and a melt-spraying spinning device 3 to carry out, that is, the manufacture method of this nonwoven fabric is for spunbond-melt blown combination process (SM technique), but in other change aspect, technology of the present invention also can be applied to SMS, SMMS combination process or technique spunbond, melt-blown separately, generally speaking, as long as make spinning fibre directly in order to the shaping mould 4 of shaping flow-guiding structure to become net, make it while into the net, also mold flow-guiding structure.
Such as shown in Fig. 5, when being applied to independent melt-blown process, corresponding above-mentioned step 11 is to step 13, directly utilize melt-spraying spinning device 3 melt polymerization raw material, then again the polymer raw material of melting is pumped into after melt-spraying spinning fiber through hot blast drawing-off, melt-spraying spinning fiber collects layer straticulation thing 5 ' again on shaping mould 8, and mold the fin 51 ' of the rib 81 of corresponding shaping mould 8 simultaneously, namely flow-guiding structure, and shaping mould 8 also can be the wire mesh cage structures being wound in a roller frame and forming cylinder shape.
Or, consult Fig. 2 and Fig. 6, when being applied to independent spunbond process, it is the melt-spraying spinning device 3 as omitted Fig. 2, corresponding above-mentioned step 11, to step 13, is directly utilize spunbond device for spinning 2 melt polymerization raw material, is then pumped into after spunbond spinning fibre by the polymer raw material of melting through supercooling drawing-off again, spunbond spinning fibre collects layer straticulation thing 5 again on shaping mould 9 ", and mold the fin 51 of the rib 91 of corresponding shaping mould 9 simultaneously ".
Therefore, as mentioned above, the present invention is by being incorporated in the moulding process of nonwoven fabric by the shaping of flow-guiding structure, make spinning fibre collection layer is into the net while, just flow-guiding structure can be molded, the spinning fibre that utilization is pumped into still is in hot mastication state to a certain degree when collecting layer and becoming to net, and the shaping of flow-guiding structure is carried out to it simultaneously, compared to way in the past, the length of whole product line can be shortened, and shorten the time-histories of the processed conveying of nonwoven fabric, therefore really can reach saving operation and the effect reduced costs.
Above preferred embodiment of the present invention is described in detail, but these embodiments are not limitation of the scope of the invention, be understood that, after having read above-mentioned instruction content of the present invention, those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally.
Claims (8)
1. a manufacture method for thin nonwoven layers thing, is characterized in that: simultaneously the manufacture method of this thin nonwoven layers thing utilizes a spunbond device for spinning and a melt-spraying spinning device to carry out, and the manufacture method of this thin nonwoven layers thing comprises following steps:
Steps A: melt polymerization raw material, this spunbond device for spinning and this melt-spraying spinning device melt polymerization raw material respectively;
Step B: melt polymerization raw material is pumped into spinning fibre, to be pumped into spunbond spinning fibre by this spunbond device for spinning, by this melt-spraying spinning device, polymer raw material to be pumped into melt-spraying spinning fiber by polymer raw material; And
Step C: collect layer spinning fibre and form skim thing in a molding, this spunbond spinning fibre becomes a spun-bonded fibre stratum reticulare in this shaping mould collection layer, this melt-spraying spinning fiber collects layer one meltblown fiber web layer and forms this thin-layer substance on this spun-bonded fibre stratum reticulare, this shaping mould has multiple concaveconvex structure, when this thin-layer substance is formed at this shaping mould, form the flow-guiding structure of corresponding described concaveconvex structure simultaneously, this flow-guiding structure formed multiple fin with by described fin around the depressed area defining out, and, in this step C, make this spinning fibre be adsorbed on this shaping mould by negative pressure.
2. the manufacture method of thin nonwoven layers thing as claimed in claim 1, is characterized in that: the manufacture method of this thin nonwoven layers thing is undertaken by a melt-spraying spinning device, in this steps A, and this melt-spraying spinning device melt polymerization raw material; In this step B, utilize this melt-spraying spinning device that polymer raw material is pumped into melt-spraying spinning fiber; In this step C, this melt-spraying spinning fiber collection layer one meltblown fiber web layer is formed this thin-layer substance.
3. the manufacture method of thin nonwoven layers thing as claimed in claim 2, it is characterized in that: in this step B, is be pumped into this melt-spraying spinning fiber by hot blast drawing-off.
4. the manufacture method of thin nonwoven layers thing as claimed in claim 1, is characterized in that: the manufacture method of this thin nonwoven layers thing is undertaken by a spunbond device for spinning, in this steps A, and this spunbond device for spinning melt polymerization raw material; In this step B, utilize this spunbond device for spinning that polymer raw material is pumped into spunbond spinning fibre; In this step C, this spunbond spinning fibre collection layer one spun-bonded fibre stratum reticulare is formed this thin-layer substance.
5. the manufacture method of thin nonwoven layers thing as claimed in claim 4, is characterized in that: in this step B, is to be pumped into this spunbond spinning fibre by cooling drawing-off.
6. the manufacture method of thin nonwoven layers thing as claimed in claim 1, is characterized in that: in this step B, is to be pumped into this spunbond spinning fibre by cooling drawing-off, to be pumped into this melt-spraying spinning fiber by hot blast drawing-off.
7. as the manufacture method of the thin nonwoven layers thing of claim 1,2 or 4 according to any one of it, it is characterized in that: the step D that the manufacture method of this thin nonwoven layers thing is carried out before being also contained in this step B: filter and this melt polymerization raw material of metering.
8. the manufacture method of thin nonwoven layers thing as claimed in claim 7, is characterized in that: in this step C, when this this thin-layer substance of spinning fibre collection layer, heats this thin-layer substance simultaneously.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100111577A TW201240651A (en) | 2011-04-01 | 2011-04-01 | Manufacturing method of non-woven fabric thin-layer article |
| TW100111577 | 2011-04-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102733095A CN102733095A (en) | 2012-10-17 |
| CN102733095B true CN102733095B (en) | 2015-06-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110193357.2A Active CN102733095B (en) | 2011-04-01 | 2011-07-11 | Method for manufacturing non-woven fabric thin layer |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102733095B (en) |
| TW (1) | TW201240651A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI657174B (en) * | 2016-11-23 | 2019-04-21 | 黃振正 | Manufacturing method of breathable thin layer and its forming module |
| TWI702323B (en) * | 2018-03-12 | 2020-08-21 | 三香科技股份有限公司 | Non-woven product forming device and manufacturing method |
| CN110154470B (en) * | 2019-04-01 | 2021-02-05 | 山东泰鹏环保材料股份有限公司 | Waterproof and breathable composite non-woven fabric and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122150A (en) * | 1993-04-29 | 1996-05-08 | 金伯利-克拉克公司 | Shaped nonwoven fabric and method for making the same |
| CN1212032A (en) * | 1996-02-20 | 1999-03-24 | 金伯利-克拉克环球有限公司 | Fine fiber barrier fabric with improved drape and strength and method for making same |
| CN1434767A (en) * | 1999-12-14 | 2003-08-06 | 金伯利-克拉克环球有限公司 | Breathable laminate permanently conformable to the contours of a wearer |
| CN1558743A (en) * | 2001-09-28 | 2004-12-29 | Process for manufacturing disposable fluid-handling article | |
| CN1648312A (en) * | 2004-01-20 | 2005-08-03 | 康那香企业股份有限公司 | Method for preparing water rolling non-woven cloth and its finished product and application |
| CN101358410A (en) * | 2007-07-31 | 2009-02-04 | 东丽高新聚化（南通）有限公司 | Method of preparing polypropylene multi-layer nonwoven fabrics for medical treatment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW200806456A (en) * | 2006-07-31 | 2008-02-01 | Chen-Cheng Huang | Method, mold and product of forming thin article |
-
2011
- 2011-04-01 TW TW100111577A patent/TW201240651A/en unknown
- 2011-07-11 CN CN201110193357.2A patent/CN102733095B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1122150A (en) * | 1993-04-29 | 1996-05-08 | 金伯利-克拉克公司 | Shaped nonwoven fabric and method for making the same |
| CN1212032A (en) * | 1996-02-20 | 1999-03-24 | 金伯利-克拉克环球有限公司 | Fine fiber barrier fabric with improved drape and strength and method for making same |
| CN1434767A (en) * | 1999-12-14 | 2003-08-06 | 金伯利-克拉克环球有限公司 | Breathable laminate permanently conformable to the contours of a wearer |
| CN1558743A (en) * | 2001-09-28 | 2004-12-29 | Process for manufacturing disposable fluid-handling article | |
| CN1648312A (en) * | 2004-01-20 | 2005-08-03 | 康那香企业股份有限公司 | Method for preparing water rolling non-woven cloth and its finished product and application |
| CN101358410A (en) * | 2007-07-31 | 2009-02-04 | 东丽高新聚化（南通）有限公司 | Method of preparing polypropylene multi-layer nonwoven fabrics for medical treatment |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201240651A (en) | 2012-10-16 |
| CN102733095A (en) | 2012-10-17 |
| TWI458474B (en) | 2014-11-01 |
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