CN1004499B - Improved one-step method for producing plastic non-woven fabric - Google Patents
Improved one-step method for producing plastic non-woven fabric Download PDFInfo
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- CN1004499B CN1004499B CN86104079.1A CN86104079A CN1004499B CN 1004499 B CN1004499 B CN 1004499B CN 86104079 A CN86104079 A CN 86104079A CN 1004499 B CN1004499 B CN 1004499B
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- Nonwoven Fabrics (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
The present invention is an improvement on the existing one-step and two-step method for forming plastic non-woven fabric. The existing one-step method is to extrude, melt and emboss, thermally stretch and bond the fabric in one step, but the strength and the pattern structure of the produced non-woven fabric in the longitudinal and transverse directions are not consistent, and the non-woven fabric is not suitable for polyethylene plastics. And the existing two-step method has the defects of complex structure of a warp and weft mesh wire right-angle orthogonal combiner and difficult warp and weft synchronous coordination. The present invention relates to a method for making plastics with uniform longitudinal and transverse strength and meshes by using polyolefine as raw material and making them into cross-ply non-woven plastics fabric with the advantages of economic film-forming, cutting, longitudinal and transverse stretching, forward sticking and thermal bonding.
Description
The new improvement that the invention relates to plastics Nonwovens production method in detail, the present invention is that employing is that former * makes laminated film with high low density polyethylene (LDPE), after cutting into reticular membrane, a part is as vertically hot-stretch, a part is as laterally hot-stretch, all have cancellated flat filament thereby make vertical and horizontal respectively,, forward relatively fit and heat bonding makes and has longitudinal and transverse two forming methods to the plastics Nonwovens of network longitudinal and transverse netted flat filament.
The Nonwovens of indication of the present invention, be that a kind of employing crystalline polymer polymer is that raw material is made laminated film, the process cutting, stretching makes the cancellated flat filament of vertical, horizontal respectively, and forward the new packaging material that form cloth is spinned, woven to bonding a kind of need not the passing through of lamination then.That this Nonwovens has is in light weight (50 grams/square metre), and intensity is big, characteristics such as ventilative, with it and paper, plastic sheeting foamed plastics, metal forming etc. compound after, can be made into various compound package materials, the lower material of original strength ratio is enhanced, improves use value, be widely used in chemical fertilizer, agricultural chemicals, particularly replace traditional brown paper bag of cement, thereby can save a large amount of foreign exchanges and timber, and can reduce the broken rate and the packing cost of cement.In addition, with film compound after, can also be used to the booth of growing seedlings, rain cover etc.Its purposes is very widely.Owing to make this Nonwovens, need not spin cotton and weave cloth, thereby can simplify technology and equipment greatly, reduce plant area and labour, reduce energy consumption and investment, and efficient is higher 50～100 times than traditional braiding machine.
Prior art, U.S. Patent number UsupAT3 for example, 719, * one-step method of 40 etc., its basic skills is, thermoplastic molten is extruded, pass through the scoring roller of a pair of annular ribs and transverse pattern then respectively, in every pair of scoring roller, one is carved with horizontal ridge design or vertical ridge design, another is a smooth roll, all logical cold water cooling in the roller, make reticulated film respectively, and then make vertical through horizontal expanding stretching with vertical uniaxial tension respectively with horizontal ridge design and vertical ridge design, horizontal cancellated flat filament, another embodiment of said method are that the melting charge that will extrude is by a pair of scoring roller that is carved with oblique angle (45 °) ridge design, make reticulated film with 45, then earlier through longitudinal stretching, and carry out horizontal expanding to stretch and made netted flat filament, with this netted silk shop bonding orthogonal Nonwovens that becomes 45 ° of drift angles that changes of fitting relatively at an angle of 90 mutually with 45.This drift angle orthogonal Nonwovens should not be as heavy packing articles, because after being subjected to tension, the component that 45 ° of drift angles produce and the two-layer flat filament after bonding is peeled off has mutually destroyed the integrality of network structure and Nonwovens, and we are commonly referred to one-step technology above method.
But above-mentioned forming method exists following shortcoming:
1. the flat film of the ridge design that makes of fusion cotton ginning, its cooling means must be paid close attention to.Often, influenced the quality of flat film owing to cooling is not good at making the inner spherocrystal diameter that forms of flat film bigger.And existing one-step technology should not be used poly raw material.
2. the fusion cotton ginning technique only is applicable to and extrudes flat membrane process craft, is not suitable for the tubulose membrane process craft.
3. the thorough * of the impossible cutting of the ridge design of fusion cotton ginning formation is bright, often recess leaves the film of connection, though to the no much influences that stretch, but the netted flat filament after stretching, outward appearance is not good enough, distinct issues are the most, and the network and the intensity of the Nonwovens vertical and horizontal that make with said method are inconsistent, have influenced its use value.
Existing now the employing with high low density polyethylene (LDPE) is raw material, make laminated film with high low-melting two-layer coextrusion, because high low density polyethylene (LDPE) has structural similar characteristics and better chemical affinity, so the laminated film of making has cohesive force preferably, and because height poor on the fusing point, for example low density polyethylene (LDPE) can be lower than 20 ° to 30 ℃ fusings down of high density polyethylene (HDPE) fusing point, and moment solidify can cool off the time, thereby solved the adhesion problem of the netted flat filament of vertical, horizontal.Be main raw material with the high density polyethylene (HDPE) in addition, have better tensile strength.
Existing two step method is exactly only to use with a kind of laminated film, at first through vertically cutting, vertically uniaxial tension makes netted flat filament, second the step again with the netted flat filament of this stretching respectively as warp-wise and broadwise base material, spread repeatedly lamination with a longitude and latitude right angle Orthogonal Composite machine, heat bonding and make Nonwovens, this method is at first by Japanese Process Technology of Polymer research institute's invention and the power of patenting, its patent No. in the U.S. is Usupat4,052,242, this successful invention is to utilize the Nonwovens moulding process of high density polyethylene (HDPE) for raw material, opened one new by way of, this method is exactly the method that cloth is cut in the used manufacturing of Nippon Oil(Nippon Mitsubishi Oil) chemical company " day stone Wa Lifu ", the great advantage of this two step method forming method, the one, adopted the heat bonding of high low density polyethylene (LDPE) composite membrane, the 2nd, can make through the broadwise network Nonwovens consistent with intensity.
But existing two step method still has following weak point:
1. owing to be the stretched attenuation that attenuates, thereby cut off when broadwise and to carry and the shop repeatedly and in the bonding process is easy to be disarrayed, and warp-wise and the synchronous coordination action of broadwise are more, be difficult to make combination shop carrying out at a high speed repeatedly through the netted flat filament of broadwise.
2. the structure of warp, latitude unit mahine is comparatively complicated, be that toughness liquid is picked up in dependence and unsteady conveyer belt has been picked up or carry out the orthogonal shop repeatedly in broadwise cut-out and conveying by means of the method for machinery, delivering into bond roll then continuously carries out heat bonding and makes the plastics Nonwovens, simultaneously also will be with processes such as the viscous liquid flush away blot again, so operation is complicated.
The objective of the invention is to utilize the horizontal expanding of existing fusion cotton ginning to stretch and vertical change characteristics of lamination of the high-speed shop of uniaxial tension one-step method system Nonwovens, utilized the bonding advantage of high low-melting composite film heat in the two step method again, both overcome plastics Nonwovens in the existing one-step method through broadwise network and the inconsistent shortcoming of intensity, avoided using the comparatively longitude and latitude right angle Orthogonal Composite machine of complexity of structure again, this shows that the present invention is a kind of improvement to existing one-step method and two-step process.
Basic skills of the present invention is:
1. adopting high density polyethylene (HDPE) (about 137 ℃ of fusing point) is main raw material, and low-density polyethylene (105～110 ℃ of fusing points) is made laminated film as bonding film, have the poor of high low melting point, when bonding, just can in bonding process, overcome and use chemical adhesive or the many shortcomings of the high operation of thermosol adhesive cost like this.
2. utilize horizontal expanding to stretch and vertical uniaxial tension, the netted flat filament continuous one-step of vertical, horizontal is forward fitted then, the low melting point rete under heating condition at first fusing make through, broadwise twine and be melt into one, then through behind the cooling curing and make through, the broadwise net is glued together becomes the plastics Nonwovens.
3. the cutting reticular membrane of the present invention's vertical, horizontal stretching is to cut with same cutter sweep and cutter, so the cancellated decorative pattern of vertical, horizontal is identical, and can make horizontal nethike embrane and vertically nethike embrane all be only to be orientated through uniaxial tension, so just can make the Nonwovens that makes, to the intensity one grid decorative pattern unanimity of making peace, the method for enforcement is through, latitude two: just cut off a piece reticulated film that becomes certain width with vertical cutting back for the cross directional stretch reticulated film.Reticular membrane with this cut-out.Rotate 90 degree angle conversion directions, and deliver into the expanding stretching-machine, so in fact make that vertical, horizontal all is only to stretch through uniaxial orientation.
4. change direction owing to carry out 90 degree angles after the netted cutting film stripping and slicing that will not stretch, so have well-pressedly, breadth is little, is difficult for disarraying, and relatively the gossamery netted flat filament that usefulness has stretched in the two step method makes things convenient for manyly, and efficient is also much higher.This just provides advantage for high-speed production.
5. because horizontal netted flat filament of the present invention is to enter under the clamp position of expander clip Yu from the expander bottom, and the vertical netted flat filament that is in tension is along same traffic direction lamination fit (promptly the shop repeatedly) forward, under this state, heat again then, the low melting point film is melted after the bonding plastics Nonwovens that becomes of pressing cooled and solidified, suitably adjust the transverse cuts decorative pattern and longitudinally mesh-density just can make the Nonwovens of multiple style and multiple product.
Main feature of the present invention is, it avoids using baroque warp in the two step method, latitude unit mahine, brought into play simultaneously making the broadwise net high speed that is in the warp-wise net under the tension state of the quadrature lamination of forward fitting that under clamp position, meets at right angles bonding in the one-step method again, thereby kept regularity, the uniformity of network with it.Once more, it all is the cutting decorative pattern that only uses with a kind of composite membrane and same structure that vertical, horizontal of the present invention stretches, so product has longitudinal and transverse intensity unanimity, and the network unanimity, so the present invention has practical value.
In order to reach above-mentioned projects, the present invention realizes by following steps:
1. raw material is selected for use:
Above-specified high density polyethylene (HDPE) can be with the product in chemical plant, homemade Liaoyang, the trade mark is GF7750 or imported raw material, the for example Japanese 5000S that produces, West Germany raw material GF7750 etc., several raw material technical parameters are as follows: (seeing the literary composition back) requires the HDPE raw material that the narrower range of molecular weight distributions of higher molecular weight (about 100,000), less density gradient and higher crystallinity are arranged.
The general available homemade low density polyethylene (LDPE) of LDPE, its fusing point requires between 105-110 ℃, and MI is between 3～5, and melt viscosity is close between the high low density polyethylene (LDPE).
2. system film:
(1) in order to make the laminated film of two-layer coextrusion, except that selecting proper raw material, also should select rational handpiece structure and temperature control system.
(2) with the coextrusion blow molding process or extrude flat membrane process and make composite tube film and compound flat film.
(3) tubular film should adopt lower blowing method, and again through the water ring cooling, flat film direct water-cooling method improves cooling effect, improves film quality through a vane cooling.
3. cutting,
Tubular film peace film all can adopt me " the barbed type cutting tool " of invention to cut.
4. direction is changed in the cut-out of cross directional stretch nethike embrane piece:
Volume one of in the above-mentioned reticular membrane that has cut earlier along transversely with the reticular membrane piece of electric heating cutter stripping and slicing becoming Rack, is entered horizontal expanding stretching-machine by changing direction mechanism then.
The laterally stripping and slicing and the commutation of reticular membrane piece, available following two kinds of methods, the one, earlier with above-mentioned vertical cutting reticular membrane, press every 160 to 180mm apart from cut-out as cross directional stretch.And be piled into certain height (attention faces down low melting point one) and change direction then and be placed on adding in the film trap of expanding stretching-machine front end, by adding the sheet machine with the above-mentioned reticular membrane piece that has changed direction, one then plot send in the clip of clamping band of expander, and promptly be held, enter the preheating zone, this method is intermittently adding the sheet method.Comparatively simple.
The 2nd, the above-mentioned reticular membrane that has cut into annular ribs is sent in the electric cutter tool of rotation continuously, be cut into 160 to 180mm the film piece of being separated by, then be transported to end by conveyer belt, and slide among the chute of carrying along the commutations at 90 degree angles by swash plate, promptly be recycled the pressure holding of pressure holding band then, the clip that enters into the clip band on expander both sides is held, and enters preheating section then, and this method is adding the sheet method continuously.
5. identical for the netted pattern structure that makes the reticular membrane that vertical and horizontal stretch, the present invention recommends following two kinds of methods: first method is the tubulose embrane method, tubular film doubling flattening is become bilayer film, the once double-deck double-deck reticular membrane that is cut into certain decorative pattern, divide two-layer up and down then, the upper strata stretches as horizontal stripping and slicing commutation and horizontal expanding, and lower floor supplies vertical uniaxial tension.
Second method is flat embrane method, carries out cold cut with one group of extruder (two) after extruding cooling under the stable condition and cuts, and the rolling rolling is used separately as horizontal and vertical stretching reticular membrane with two volume reticular membranes then.Perhaps use two groups of extruders (each two) to supply cross directional stretch for one group, one group supplies longitudinal stretching, makes two groups of extruded velocities, and the rotary speed of cutting tool pattern structure and cutter is in full accord, can make the reticular membrane of two groups of decorative pattern unanimities equally.
More can obtain the in full accord of pattern structure with the tubulose embrane method in the above method.
6. in order to reach the draw ratio unanimity, thereby make the intensity unanimity of vertical and horizontal netted flat filament, the multiple that horizontal expanding stretches is fixed, if adjust the longitudinal stretching multiple just can make after the stretching in length and breadth to the intensity unanimity of the netted flat filament of stretching.
7. in order to be converted to horizontal cutting decorative pattern by vertical cutting decorative pattern as the reticular membrane cutting decorative pattern of cross directional stretch, the film that must vertically cut decorative pattern is a piece reticular membrane of 160 to 180mm along laterally being cut into width earlier, carry out then 90 the degree angles change direction make the cutting decorative pattern be transformed into along transversely arranged, carrying out vertical uniaxial tension and laterally expanding stretching like this, all is uniaxial tension.
Fig. 1 and 2 is that schematic diagram is carried in the cut-out and the commutation of horizontal net piece:
1. be the nethike embrane of cutting; 2. carry-over pinch rolls; 3. preposition conveyer belt; 4. compression spring; 5. rotating shaft; 6. cutter; 7. electric heater; 8. cutting mat roller; 9. non-return ratchet; 10. doff roll; 11. clamping conveying belt; 12. pressure roller; 13,14, guiding nip rolls; 15. oblique slide plate; 16. lateral transfer groove; 17. the net piece that has commutated; 18. transverse onveyer; 19. deflector roll; 20. pouring weight; 21. draw deflector roll; 22. clip; 23. clip conveyer belt; 24. lower guide roll; 25. clamping conveyer belt; 26. last deflector roll; 38, preheating section; 39, expanding section; 40, heat-setting section; 41, horizontal netted flat filament; 42, cooling press bonding roller.
Fig. 3 and 4 is for intermittently adding sheet machine schematic diagram:
27, conveyer belt; 28, add sheet and advance wheel; 29, catch bar 30, half cycle gear; 31, promote the bar tooth; 32, promote slide bar; 33, back-moving spring; 34, chute; 35, heaping groove; 36, the net piece that has commutated; 37, lifting dancer.
Fig. 5 is example one (periosteum method) process flow diagram:
43a43b, extrude; 44, annular head film forming; 45, cooling; 46, doubling is a double-layered compound film; 47, bilayer once cuts; 48, both sides are cut open; 49,90 ° of angle commutations are carried; 50, laterally stripping and slicing; 51, commutate in 90 ° of angles again; 52, warp-wise uniaxial tension; 53, laterally expanding stretches; 54, applying is just bonding in length and breadth; 55, heat bonding; 56, cooling; 57, cut edge; 58, Nonwovens finished product.
Fig. 6 is example two (flat embrane method) process flow diagram:
59a59b, extrude; 60, clothes hanger type head film forming; 61, cooling; 62, cutting 63, longitudinal stretching; 64 strippings and slicings; 65,90 ° of angle commutations are carried; 66, laterally expanding stretches; 67, the netted flat filament of broadwise; 68, vertical netted flat filament; 69, fit continuously; 70, heat bonding; 71, cooling; 72, cut edge; 73, Nonwovens finished product.
Fig. 1 and 2 cuts off and the changement schematic diagram; The reticular membrane 1 that has cut into annular ribs is unreeled by carry-over pinch rolls 2 tractions, entering alloy-steel cutter 6 alloy-steel cutters through conveyer belt 3 heats with electric heater 7, when reticular membrane passes through cutter, cutter is rotated to the central point (normotopia) of cutting by swivel mount 5, reticular membrane is heated to melt between the liner roll 8 and the edge of a knife and cuts off, the nethike embrane piece that cuts off is thrown off the reticular membrane volume by the traction of pressure holding conveying roller 10.Cut reticular membrane piece is transported to conveyer belt by conveyer belt 14 end slips in the lateral transfer groove 16 by swash plate 15.Be provided with transverse onveyer 18 in the delivery chute when the nethike embrane piece slips into the lateral transfer groove by swash plate, promptly carry and leave transverse groove by conveyer belt 18, behind an output transverse groove of mesh patch, promptly to horizontal expander and carry by a clamping conveyer belt 25 clampings, the clip that is opened on the track of expander both sides immediately on the clamping band 22 of openning clamps, enter into preheating section 38 expanding stretch sections 39, heat-setting section 40 then successively, and system is carried the netted flat filament 41 of cross directional stretch.
Intermittently add the sheet method, can be by Fig. 3 and shown in Figure 4 carrying out; The stripping and slicing and the said method of reticular membrane are identical, after just the nethike embrane of stripping and slicing being stacked into certain altitude, send into heaping groove 36, by catch bar 29, propelling wheel 28 with non-return ratchet, promotion back and forth make nethike embrane piece 35, send into conveyer belt 27 one by one, dancer 37, can lifting, automatically swing up and down along with the increase and decrease of the nethike embrane piece in the heaping groove and to adjust the position, so that make the nethike embrane piece enter conveyer belt 27 effectively, the reciprocating motion of catch bar 29 is that the periodicity reciprocating motion by 30 teeth of half cycle gear, 31 slide bars, 32 back-moving springs 33 reaches, like this one of nethike embrane piece then one be transported to expander.
In the middle of the clip band 23 on both sides, simultaneously the mesh patch both sides respectively by about clip 22 on the two clip bands 23 clamp, and enter preheating section 38, expanding stretch section 39 and heat-setting section 40, and make the netted flat filament 41 of cross directional stretch.
Below be that embodiment of the present invention are given an example:
Example one: make fine one step processing method by the tubular composite membrane cutting:
As shown in Figure 5, with height, low density polyethylene (LDPE) (HDPE and LDPE) adds two extruders 43a and 43b respectively, the rotation of heating and screw rod friction outside makes the plastics fusion and extrudes the coextrusion head 44 that enters into an annular down and is extruded as the tubulose laminated film, doubling is a duplicature 46 through supercooling 45 and through nip rolls, once cutting 47 cuts open on both sides then and becomes bilevel laminated film 48, lower floor's cutting nethike embrane carries out the netted flat filament that vertical single shaft hot-stretch 52 makes longitudinal stretching along extruding direction, and upper strata cutting nethike embrane, the commutation of carrying out 90 ° of angles by the guide roller 49 of 45 carry the back on horizontal plane along laterally by 50 ° of strippings and slicings, become one one wide nethike embrane piece, then by the grooved conveyer belt, do 90 ° of angle commutations and carry 51, and enter into horizontal expanding stretching-machine 53, make the netted flat filament of transverse pattern, the netted flat filament that enters into heat-setting section and the longitudinal stretching that enters from below then is along the direction of advance portraitlandscape net quadrature that meets at right angles this moment of forward fitting, the low melting point rete melted by heat of fitting is integral mutually, through cooling press bonding roller cooling 56, make vertical, the laterally preliminary bonding Nonwovens that becomes, need through heat bonding 55 once more after leaving expander, cooling 56, cut edge 57, rolling becomes plastics Nonwovens 58, this Nonwovens nearly weighs 50 grams, width 1100mm for every square metre, thickness 0.06 is to 0.08mm.
6 * 6 pieces/cun squares of thread counts.
Example two, compound flat embrane method
High low density polyethylene (LDPE) is joined respectively in two extruder 59a and the 59b, the melt of extruding enters into the clothes hanger type coextrusion head 60 of a wide cut, the flat film melt of extruding enters into bosh immediately and cools off 61, make compound flat film, carry out the cutting 62 of annular ribs then, make cancellated cutting film take-up and become tube, be sent to the stretching-machine of vertical and horizontal respectively.The above-mentioned nethike embrane that has cut twists on the unreeling shaft of longitudinal stretching and unreels, and after entering preheat roll before stretching and being heated to 95-110 ℃, carries out hot-stretch 66, has become the netted flat filament of extension through the nethike embrane of above-mentioned longitudinal stretching.And the heat-setting section of importing expander, meanwhile, another volume reticular membrane is sent to commutation stripping and slicing conveyer, enter into cross cutter and carry out stripping and slicing 64, nethike embrane after the stripping and slicing is transported to the end of cutting machine, and fall into the commutation delivery chute, carried out 90 ° of angle commutations by the commutation conveyer belt, the commutation delivery chute speeds away, the clip rim end that enters into horizontal expander is clamped by clip immediately, carry out then after horizontal expanding is stretched to certain multiple, enter into the heat-setting section of expander, enter the vertical netted flat filament of expander heat-setting section this moment from below, also enter heat-setting section simultaneously, carry out HEAT SETTING simultaneously, and make in length and breadth low melting point film fusing to net, and fit relatively, close and cooling solidifies the low melting point film and preliminary bonding becomes the plastics Nonwovens by a pair of cooling pressing roll-in, leave expander then and enter into heat combined roller and carry out heat bonding again, cooling, cut edge, rolling becomes plastics Nonwovens finished product.
Also available two groups of extruders (four) make the cutting nethike embrane of decorative pattern unanimity respectively, carry out as stated above respectively then that vertical and horizontal stretch and a step is made Nonwovens, in the time of in this way, note making the netted pattern structure unanimity of the nethike embrane that two cover units make.
℃ production of trade mark melt index density fusing point
Chemical plant, GF7750 0.5-0.4 0.940-0.950 137 Chinese Liaoyang
5000S 0.75 0.955 135 Japan
GF7750 0.5 0.95 137 West Germany's Hirsts
Claims (5)
1, a kind of is the one-step shaping method that raw material is made the plastics Nonwovens with high low density polyethylene (LDPE), its two-layer up and down netted flat filament that forms through horizontal, vertical simple tension that is respectively, they are mutually the right angle, forward fit and heat bonding, it is characterized in that: laterally the expanding used reticulated film that stretches is that the netted wide-range film that will vertically cut decorative pattern carries out stripping and slicing, is transported to expander by 90 degree angle conversion directions.
2, by the described forming method of claim 1, after the netted wide-range film that it is characterized in that vertically cutting decorative pattern makes laminated film by flat embrane method, along extrude direction promptly vertically the cutting decorative pattern make.
3, by the described forming method of claim 1, the netted wide-range film that it is characterized in that vertically cutting decorative pattern by the periosteum legal system get the tubulose laminated film tear open flat after, make along extruding the promptly vertically once double-deck cutting decorative pattern of direction.
4,, it is characterized in that the wide-breadth reticular film that vertically cuts decorative pattern is transported to expander by a transition mechanism (16) and conveyer belt (18) by 90 degree angle conversion directions with cutter from the horizontal plane direction input that becomes 90 degree angles with expander continuously after the horizontal stripping and slicing of reticular membrane by claim 1 or 2 or 3 described forming methods.
5, by claim 1 or 2 or 3 described forming methods, it is characterized in that vertically cutting the wide-range film of decorative pattern, with cutter after the horizontal stripping and slicing of reticular membrane, by 90 degree angle conversion directions, make vertically be transformed into transversely arranged, and pile up, add sheet * by batch (-type) and send into expander one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86104079.1A CN1004499B (en) | 1986-06-09 | 1986-06-09 | Improved one-step method for producing plastic non-woven fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN86104079.1A CN1004499B (en) | 1986-06-09 | 1986-06-09 | Improved one-step method for producing plastic non-woven fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN86104079A CN86104079A (en) | 1987-12-23 |
| CN1004499B true CN1004499B (en) | 1989-06-14 |
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ID=4802315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN86104079.1A Expired CN1004499B (en) | 1986-06-09 | 1986-06-09 | Improved one-step method for producing plastic non-woven fabric |
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| Country | Link |
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| CN (1) | CN1004499B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092261C (en) * | 2000-06-13 | 2002-10-09 | 张玺钧 | Making method of prestressed non-woven fabric |
| CN1912215A (en) * | 2006-08-23 | 2007-02-14 | 林净植 | Weaving method of using nonwoven fibric as yarn |
| GB2504768B (en) * | 2012-08-10 | 2017-02-08 | Harrison Spinks Components Ltd | Compression apparatus and method |
| FR3026112B1 (en) * | 2014-09-22 | 2017-06-23 | Andritz Asselin Thibeau | CONSOLIDATION INSTALLATION, IN PARTICULAR BY REFRIGERATION, OF A FIBER TABLE |
| CN104291072B (en) * | 2014-09-30 | 2016-11-02 | 泉州市中研智能机电研究院有限公司 | Pressure roller component for conveyer belt |
| CN105856581A (en) * | 2016-05-28 | 2016-08-17 | 河北宝源工程橡塑有限公司 | Macromolecular waterproof coiled material and special equipment and manufacturing method thereof |
| CN107354581A (en) * | 2017-08-16 | 2017-11-17 | 际华三五三四制衣有限公司 | Bat encloses yarn machine |
| CN108538502B (en) * | 2018-05-30 | 2020-05-12 | 平湖金都电缆材料有限公司 | Processing technology for filling and opening net film of cable |
| CN108950879A (en) * | 2018-08-21 | 2018-12-07 | 珠海水丝新材料有限公司 | A kind of production method of superabsorbent water longitude and latitude non-woven fabrics |
-
1986
- 1986-06-09 CN CN86104079.1A patent/CN1004499B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN86104079A (en) | 1987-12-23 |
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